CDVD Drive: Difference between revisions

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(KHM-430CAA found on a restoration video of a SCPH-79001CW; TDP182W and PVR-802W found on SCPH-90004CB 8B GH-070-42)
 
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== Overview ==
== Overview ==
The drive is known as MD-block in internal Sony documentation.
The drive is known as MD-block in internal Sony documentation, where MD stands for "Mechanism Deck". For the optical pickup ("Laser"), see [[Pickups]].


== Electronics ==
== Electronics ==
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Early consoles (A, A+, AB, B, B', C, C' chassis) have separate boards with some of the disc drive electronics:
Early consoles (A, A+, AB, B, B', C, C' chassis) have separate boards with some of the disc drive electronics:
* GM-038 (early A-chassis (SCPH-10000, early SCPH-15000)) <br/> [[File:O2kHeUP.jpg|200px]]
* GM-038 (early A-chassis) (SCPH-10000, early SCPH-15000, DTL-T10000)<br/> [[File:O2kHeUP.jpg|200px]]
** Contains RF-amp (CXA2605R)
** Contains RF-amp (Sony CXA2605R)
** requires heatsinking for RF-amp
** requires heatsinking for RF-amp
* GM-041 (B-chassis, B'-chassis) <br/> [[File:ijlZhMf.jpg|200px]]
* GM-041 (B-chassis, B'-chassis) <br/> [[File:ijlZhMf.jpg|200px]]
** Contains RF-amp (SP3727A) and tilt-driver (BA5912AFP)
** Contains RF-amp (TI SP3727A) and tilt-driver (BA5912AFP)
** does not require any heatsinking
** does not require any heatsinking
* GM-042 (late A-chassis, A+ chassis (late SCPH-15000, GH-003 based SCPH-18000)) <br/> [[File:ayV4TIz.jpg|200px]]
* GM-042 (late A-chassis, A+ chassis) (late SCPH-15000, GH-003 based SCPH-18000)<br/> [[File:ayV4TIz.jpg|200px]]
** Contains RF-amp (SP3727A)
** Contains RF-amp (TI SP3727A)
** does not require any heatsinking, unlike GM-038 used in the same chassis; a hole in the case to place a thermal pad in is still there in these consoles, but the thermal pad has been left out from the factory
** does not require any heatsinking, unlike GM-038 used in the same chassis; a hole in the case to place a thermal pad in is still there in these consoles, but the thermal pad has been left out from the factory
* TODO: Board of AB chassis
** Contains RF-amp (SP3727A)
* GM-043 (C-chassis, C'-chassis) <br/> [[File:cRFTRP8.jpg|200px]]
* GM-043 (C-chassis, C'-chassis) <br/> [[File:cRFTRP8.jpg|200px]]
** Contains RF-amp (SP3727A), spindle driver (BA6664FM) and focus/tracking/sled-motor/tray-motor driver (BA5810FP)
** Contains RF-amp (TI SP3727A), spindle driver (BA6664FM) and focus/tracking/sled-motor/tray-motor driver (BA5810FP)
** requires heatsinking for BA6664FM and BA5810FP
** requires heatsinking for BA6664FM and BA5810FP
* GM-045 (AB-chassis) (GH-008 based SCPH-18000)<br/> [[File:GM-045.jpg|200px]]
** Contains RF-amp (TI SP3727A)
** does not require any heatsinking


The [[PSX]] also has a dedicated board for drive electronics, which contains all drive components for the PSX/DVR-mode/burning part of the PSX's unique dual-pickup drive.  
The [[PSX]] also has a dedicated board for drive electronics, which contains all drive components for the PSX/DVR-mode/burning part of the PSX's unique dual-pickup drive.  
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=== Fat drive assemblies ===
=== Fat drive assemblies ===
''Regulatory labels on the drive enclosure vary between regions''
==== A/A+ chassis drive block ====
==== A/A+ chassis drive block ====
''SCPH-10000 japanese launch consoles, SCPH-15000 consoles, some SCPH-18000 consoles, all japan only''<br/>
''SCPH-10000 japanese launch consoles, SCPH-15000 consoles, some SCPH-18000 consoles, all japan only''<br/>
[[File:KnNqiXM.jpeg|200px]][[File:FHGfvMM.jpeg|200px]][[File:YXgnrZs.jpeg|200px]][[File:7CTF3pm.jpeg|200px]][[File:SLwBUGn.jpg|200px]][[File:vzMYOTs.jpg|200px]][[File:3ubGZSb.jpg|200px]]
[[File:KnNqiXM.jpeg|200px]][[File:FHGfvMM.jpeg|200px]][[File:YXgnrZs.jpeg|200px]][[File:7CTF3pm.jpeg|200px]][[File:SLwBUGn.jpg|200px]][[File:vzMYOTs.jpg|200px]][[File:3ubGZSb.jpg|200px]]
* The only drive block to use the KHS-400A pickup, later units use KHS-400B (a picture of a drive inside a SCPH-18000 A+ chassis console using the KHS-400B pickup has been added above)
* The only drive block to use the [[KHS-400A]] pickup, later units use [[KHS-400B]] (a picture of a drive inside a SCPH-18000 A+ chassis console using the KHS-400B pickup has been added above)
* Later units have a slightly different drive board which contains a Texas Instruments SP3727A [[RF-Amp]] instead of the Sony CXA2605R RF-Amp that was used on early units
* Later units have a slightly different drive board which contains a Texas Instruments SP3727A [[RF-Amp]] instead of the Sony CXA2605R RF-Amp that was used on early units
* In these pictures, the flat flex cable between the board and the laser unit has been replaced. The only difference to the original cable is the length of the blue flap, which is longer on the original cable on the side connected to the PCB
* In these pictures, the flat flex cable between the board and the laser unit has been replaced. The only difference to the original cable is the length of the blue flap, which is longer on the original cable on the side connected to the PCB
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[[File:1IbnPhB.jpg|200px]][[File:Nb6CAWI.jpg|200px]][[File:Uhd08l5.jpg|200px]][[File:KCqhhZE.jpg|200px]][[File:Nixc2WV.jpg|200px]][[File:db77gPh.jpg|200px]][[File:EJf4jLE.jpg|200px]]
[[File:1IbnPhB.jpg|200px]][[File:Nb6CAWI.jpg|200px]][[File:Uhd08l5.jpg|200px]][[File:KCqhhZE.jpg|200px]][[File:Nixc2WV.jpg|200px]][[File:db77gPh.jpg|200px]][[File:EJf4jLE.jpg|200px]]
* Uses a radial tilt control motor only found in this drive block; all other drive blocks have their radial tilt mechanically set at the factory
* Uses a radial tilt control motor only found in this drive block; all other drive blocks have their radial tilt mechanically set at the factory
* Optical pickup is always KHS-400B
* Optical pickup is always [[KHS-400B]]


==== C/C' chassis drive block ====
==== C/C' chassis drive block ====
''later north american SCPH-30001 consoles, SCPH-30004 PAL launch consoles, SCPH-3000x consoles in many regions''<br/>
''later north american SCPH-30001 consoles, SCPH-30004 PAL launch consoles, SCPH-300xx consoles in many regions''<br/>
[[File:Gov1HNg.jpg|200px]][[File:5kfnZit.jpg|200px]][[File:gLVqrNi.jpg|200px]][[File:Kncxtr7.jpg|200px]][[File:iEjTkZ5.jpg|200px]][[File:FVtodEz.jpg|200px]][[File:BJfmUzT.jpg|200px]]
[[File:Gov1HNg.jpg|200px]][[File:5kfnZit.jpg|200px]][[File:gLVqrNi.jpg|200px]][[File:Kncxtr7.jpg|200px]][[File:iEjTkZ5.jpg|200px]][[File:FVtodEz.jpg|200px]][[File:BJfmUzT.jpg|200px]]
* Takes away the tilt motor introduced on the B/B' chassis drive block
* Takes away the tilt motor introduced on the B/B' chassis drive block
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==== AB chassis drive block ====
==== AB chassis drive block ====
''some SCPH-18000 consoles, japan-only''<br/>
''some SCPH-18000 consoles, japan-only''<br/>
* Basically a C/C' chassis drive block with a different drive board that only contains the RF-amp but not the driver ICs, since these are located on the motherboard
[[File:AB drive top.jpg|200px]][[File:AB drive tray.jpg|200px]][[File:AB drive inside.jpg|200px]][[File:AB drive bottom.jpg|200px]][[File:AB drive mech pickup.jpg|200px]][[File:AB drive mech top.jpg|200px]][[File:AB drive mech bottom.jpg|200px]]
* Basically a C/C' chassis drive block with a different drive board that only contains the RF-amp but not the driver ICs, since these are located on the motherboard, and no heatsink. Also some slight mechanical differences in the plastic casing.
 
==== D/D' chassis drive block ====
==== D/D' chassis drive block ====
''later SCPH-3000x consoles in any region, early SCPH-3000xR consoles in many regions, SCPH-3500x special editions in some regions, SCPH-3500xR special editions in some regions''<br/>
''later SCPH-300xx consoles in any region, early SCPH-300xxR consoles in many regions, SCPH-350xx special editions in some regions''<br/>
[[File:D-chassis drive 1.jpg|240px|frameless]][[File:D-chassis drive block 2.jpg|240px|frameless]][[File:D-chassis drive block 3.jpg|240px|frameless]][[File:D-chassis drive block 4.jpg|240px|frameless]][[File:D-chassis drive block 5.jpg|240px|frameless]][[File:D-chassis drive block 6.jpg|240px|frameless]][[File:D-chassis drive block 7.jpg|240px|frameless]]
[[File:D-chassis drive 1.jpg|240px|frameless]][[File:D-chassis drive block 2.jpg|240px|frameless]][[File:D-chassis drive block 3.jpg|240px|frameless]][[File:D-chassis drive block 4.jpg|240px|frameless]][[File:D-chassis drive block 5.jpg|240px|frameless]][[File:D-chassis drive block 6.jpg|240px|frameless]][[File:D-chassis drive block 7.jpg|240px|frameless]]
* all drive electronics moved to the motherboard, no dedicated drive board anymore
* all drive electronics moved to the motherboard, no dedicated drive board anymore


==== F/G chassis drive block ====
==== F/G chassis drive block ====
''late japanese SCPH-30000 consoles, late SCPH-3000xR consoles in many regions, japanese SCPH-37000 special editions, SCPH-3900x consoles in many regions''<br/>
''late japanese SCPH-30000 consoles, late SCPH-300xxR consoles in many regions, japanese SCPH-37000 special editions, SCPH-390xx consoles in many regions''<br/>
[[File:P8NcLeB.jpg|200px]][[File:dqJrJCi.jpg|200px]][[File:UuwuNLx.jpg|200px]][[File:Q4KeBcc.jpg|200px]][[File:9c1lpJW.jpg|200px]][[File:kfsO92o.jpg|200px]][[File:UnMQzul.jpg|200px]]
[[File:P8NcLeB.jpg|200px]][[File:dqJrJCi.jpg|200px]][[File:UuwuNLx.jpg|200px]][[File:Q4KeBcc.jpg|200px]][[File:9c1lpJW.jpg|200px]][[File:kfsO92o.jpg|200px]][[File:UnMQzul.jpg|200px]]
* Optical pickup changed to KHS-400C, KHS-400R or SF-HD7
* Optical pickup changed to [[KHS-400C]] or [[SF-HD7]]
** Pictures show the variant that uses the Sony KHS-400C pickup. Variants using either the Sony KHS-400R or Sanyo SF-HD7 pickup are identical aside of the pickup itself; the pickups are interchangeable (different calibration data for Mechacon required)
** Pictures show the variant that uses the Sony KHS-400C pickup. Variants using the Sanyo SF-HD7 pickup are identical aside of the pickup itself; the pickups are interchangeable (different calibration data for Mechacon required, use LensChanger or PMAP)
==== H/I chassis drive block ====
==== H/I chassis drive block ====
''SCPH-5000x consoles in any region, SCPH-5500x special editions in some regions''<br/>
''SCPH-500xx consoles in any region, SCPH-550xx special editions in some regions''<br/>
[[File:un3LrqS.jpg|200px]][[File:N13dm9Y.jpg|200px]][[File:J5g8RtO.jpg|200px]][[File:FLt0xfo.jpg|200px]][[File:y0SF82K.jpg|200px]][[File:2EeoJVp.jpg|200px]][[File:4sSITOE.jpg|200px]]
[[File:un3LrqS.jpg|200px]][[File:N13dm9Y.jpg|200px]][[File:J5g8RtO.jpg|200px]][[File:FLt0xfo.jpg|200px]][[File:y0SF82K.jpg|200px]][[File:2EeoJVp.jpg|200px]][[File:4sSITOE.jpg|200px]]
* Pictures show the variant that uses the Sanyo SF-HD7 pickup. Variants using either the Sony KHS-400R or KHS-400C pickup are identical aside of the pickup itself; the pickups are interchangeable (different calibration data for Mechacon required)
* Pictures show the variant that uses the Sanyo [[SF-HD7]] pickup. Variants using the Sony [[KHS-400C]] pickup are identical aside of the pickup itself; the pickups are interchangeable (different calibration data for Mechacon required, use LensChanger or PMAP)
* Some markings on the mechanism have been made by the owner during alignment; they are not from the factory
* Some markings on the mechanism have been made by the owner during alignment; they are not from the factory
* Button assembly now mounted on the drive assembly
* Button assembly now mounted on the drive assembly
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** Slide arm of the optical pickup now made of a metal spring instead of plastic
** Slide arm of the optical pickup now made of a metal spring instead of plastic
==== J chassis drive block ====
==== J chassis drive block ====
''late SCPH-5000x consoles in some regions''<br/>
''late SCPH-5xxxx consoles in some regions''<br/>
[[File:irvUNi2.jpg|200px]][[File:J5KaXJn.jpg|200px]][[File:uIrCwhc.jpg|200px]]
[[File:irvUNi2.jpg|200px]][[File:J5KaXJn.jpg|200px]][[File:uIrCwhc.jpg|200px]]
* Very different drive:
* Very different drive:
** Uses Mitsumi TDP062W drive mechanism based around the Mitsumi PVR-702W pickup
** Uses Mitsumi TDP062W drive mechanism based around the Mitsumi [[PVR-702W]] pickup


=== Slim drive assemblies ===
=== Slim drive assemblies ===
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==== Sony assemblies ====
==== Sony assemblies ====
''The Sony assemblies are identical to and fully compatible with their Mitsumi-counterparts from the same chassis. The only difference is the branding. Not found in N-chassis consoles.''
''The Sony assemblies are identical to and fully compatible with their Mitsumi-counterparts from the same chassis. The only difference is the branding.''
* KHM-430AAA
* KHM-430AAA
** K-chassis, L-chassis
** K-chassis, L-chassis
** KHM-430 pickup
** [[PVR-802W|KHM-430(A)]] pickup ''(has only "KHM-430" embossed in it's base)


* KHM-430BAA
* KHM-430BAA
** M-chassis
** M-chassis
** KHM-430C pickup
** [[PVR-802W|KHM-430B]] pickup
[[File:KHM-430BAA top.jpg|240px|frameless]] [[File:KHM-430BAA bottom.jpg|240px|frameless]]
[[File:KHM-430BAA top.jpg|240px|frameless]] [[File:KHM-430BAA bottom.jpg|240px|frameless]]


* KHM-430CAA
* KHM-430CAA
** P-chassis, R-chassis
** N-chassis, P-chassis, R-chassis
** KHM-430C pickup
** [[PVR-802W|KHM-430C]] pickup
[[File:KHM430CAA top.jpg|240px|frameless]] [[File:KHM430CAA bottom.jpg|240px|frameless]]
[[File:KHM430CAA top.jpg|240px|frameless]] [[File:KHM430CAA bottom.jpg|240px|frameless]]


==== Mitsumi assemblies ====
==== Mitsumi assemblies ====
''The Mitsumi assemblies are identical to and fully compatible with their Sony-counterparts from the same chassis. The only difference is the branding. Not found in P and R-chassis consoles.''
''The Mitsumi assemblies are identical to and fully compatible with their Sony-counterparts from the same chassis. The only difference is the branding. Not found in R-chassis consoles.''
* TDP082W
* TDP082W
** K-chassis, L-chassis
** K-chassis, L-chassis
** PVR-802W pickup
** [[PVR-802W]] pickup
[[File:TDP082W top.jpg|240px|frameless]] [[File:TDP082W bottom.jpg|240px|frameless]]


* TDP182W (with M-chassis compatible cable length)
* TDP182W (with M-chassis compatible cable length)
** M-chassis
** M-chassis
** PVR-802W pickup
** [[PVR-802W]] pickup


* TDP182W (with N-chassis compatible cable length)
* TDP182W (with N-chassis compatible cable length)
** N-chassis
** N-chassis
** PVR-802W pickup
** [[PVR-802W]] pickup


==== Sankyo assemblies ====
* TDP182W (with P-chassis compatible cable length)
''The Sankyo assembly is incompatible with the Sony/Mitsumi assemblies. It requires different top shells for the case and different [[MechaCon]] calibration data. Only found in K and L-chassis consoles.''
** P-chassis
* SPU3170  
** [[PVR-802W]] pickup
 
==== Sankyo/Philips assemblies ====
''The Sankyo assembly is incompatible with the Sony/Mitsumi assemblies. It requires different top shells for the case and different [[MechaCon]] calibration data. Only found in K and L-chassis consoles.''<br/>''While Sankyo is confirmed as the manufacturer of the whole assembly, the actual laser pickup might be manufacturerd by '''Philips''', as SPU3170 would be consistent with their naming scheme for pickups and Sankyo was never known to produce pickups, since their expertise lies within electromechanical systems.''
* [[SPU3170]]
** K-chassis, L-chassis
** K-chassis, L-chassis
** This is likely the name of just the optical pickup, not the whole assembly
[[File:SPU3170 top.jpg|240px|frameless|top side of the spu3170 drive assembly used in some k and l-chassis slim ps2 consoles.]] [[File:SPU3170 bottom.jpg|240px|frameless|bottom side of the spu3170 drive assembly used in some k and l-chassis slim ps2 consoles.]]
[[File:SPU3170 top.jpg|240px|frameless|top side of the spu3170 drive assembly used in some k and l-chassis slim ps2 consoles.]] [[File:SPU3170 bottom.jpg|240px|frameless|bottom side of the spu3170 drive assembly used in some k and l-chassis slim ps2 consoles.]]


=== PSX drive assemblies ===
=== PSX drive assemblies ===
The PS2-part of the drive is based on the H/I chassis SCPH-5XXXX fat PS2 drive, both electrically and mechanically. The whole drive assembly is connected to the motherboard using 3 flat flex cables: One is an IDE connection to the dedicated drive board of the PSX-part, one provides power (5V, 12V, GND) and also connects the PS2-part sled motor to the motherboard (since it is controlled by the motherboard directly), and one connects the KHS-400C PS2-part pickup to the motherboard, since it is also directly controlled by the motherboard. The spindle motor is always controlled by the dedicated PSX-part drive electronics over IDE, even in PS2 mode.
The PS2-part of the drive is based on the H/I chassis (SCPH-50000/55000) PS2 drive, both electrically and mechanically. The whole drive assembly is connected to the motherboard using 3 flat flex cables: One is an IDE connection to the dedicated drive board of the PSX-part, one provides power (5V, 12V, GND) and also connects the PS2-part sled motor to the motherboard (since it is controlled by the motherboard directly), and one connects the KHS-400C PS2-part pickup to the motherboard, since it is also directly controlled by the motherboard. The spindle motor is always controlled by the dedicated PSX-part drive electronics over IDE, even in PS2 mode.


* DESR-x000 and DESR-x100 drive
* DESR-x000 and DESR-x100 drive
** Uses Sony KWS-200A optical pickup
** Uses Sony [[KWS-200A]] optical pickup (in addition to a [[KHS-400C]])
[[File:8UIuNSN.jpg|200px]]
[[File:8UIuNSN.jpg|200px]]


* DESR-x500 and DESR-x700 drive
* DESR-x500 and DESR-x700 drive
** Uses Sanyo SF-DB11 optical pickup
** Uses Sanyo [[SF-DB11]] optical pickup (in addition to a [[KHS-400C]])
[[File:XkMxA6G.jpg|200px]]
[[File:XkMxA6G.jpg|200px]]


== Optical pickup ==
=== Notes ===
* KHS-400R seems to be a rebadged Sanyo SF-HD7 with a different plastic cap to remove the "HD7" labelling present on the SF-HD7; they are completely drop-in interchangeable
* KHS-400B and KHS-400C are electrically compatible, but differ in thickness of their bases, making them mechanically incompatible (putting a KHS-400C in place of a KHS-400B will seem to work at first, but the flex cable will bend heavily once the pickup reaches the outer area while moving)
* KHS-400C and KHS-400R / SF-HD7 are mechanically fully compatible, but require different calibration data for [[MechaCon]]
* There are 2 different lens assemblies for KHS-400B and KHS-400C, which require different calibration data for MechaCon: T487 (white ring around lens) and T609K (yellow ring around lens). T609K seemingly was introduced with the D/D'-chassis. Some early T609K have a white ring around the lens. These pickups have a violet marking at the adjustment screw. (Markings in other colors don't indicate any lens assembly variant, only violet does)
* KHS-400B (with T487 lens assembly) can fully drop-in replace KHS-400A, but not vice versa (mechanical reasons: KHS-400A in a drive meant for KHS-400B can't press the home-position switch near the spindle). KHS-400B with T609K lens assembly can also be used, but requires different calibration data for MechaCon.
* PSX consoles always have 2 pickups: One KHS-400C (for PS2 games only) and KWS-200A (XPD-001 motherboard) or SF-DB11 (XPD-005 motherboard). Every disc will first be detected by the KWS-200A / SF-DB11, so if this pickup is broken, the console also won't read PS2 games, since the KHS-400C only becomes active once a Disc to be read by it has been detected by the other pickup
* The drive mechanisms of earlier and later PSX consoles are completely different from each other (except the KHS-400C), so you can't replace a KWS-200A with a SF-DB11 or vice versa
* PVR-802W and KHM-430 seem to be mostly identical; KHM-430 is probably a rebadged PVR-802W, as it is with KHS-400R / SF-HD7
* Several variants of the Sanyo SF-DB11 pickup exist, with only some of them being compatible with the PSX. Trying to install an incompatible one will (sometimes? always?) burn the flat flex cable and/or blow the 5V drive-power fuse on the motherboard depending on your luck (known compatible variants: bottom sticker number starts with DB11B; known incompatible revisions: bottom sticker number starts with DB11N, 11NX or 11NXL). It didn't seem to damage anything else though; most notably all electronics (after replacing the blown fuse) AND the laser pickup (after being installed into a compatible PC drive that uses this variant) survived.
** These different types are seemingly actually called "SF-DB11B" (the one compatible with the PSX), "SF-DB11NS", "SF-DB11NX" and "SF-DB11NXL" (all three incompatible with PSX). These are best differentiated by the bottom sticker, not by the embossed revision number on the top.
** [[File:jPNVCqr.jpg|200px]][[File:Vo2DfEx.jpg|200px]]
** Comparison of an compatible type (left) with an incompatible type (right) of SF-DB11 with the bottom shielding removed:<br />[[File:UJjmXaf.jpg|200px]]
* There is an official documentation of the KWS-200A used in the DESR-x000 and DESR-x100 PSX, released by Sony itself:<br/> [[File:TxkqxiO.jpg|200px]] [[File:tyimnzA.jpg|200px]]
=== Pickup types ===
==== Sony ====
* KHS-400A (A-chassis, some A+-chassis)
** always with T487 lens assembly
* KHS-400B (some A+-chassis, AB-chassis, B/B'-chassis, C/C'-chassis, D/D'-chassis)
** with T487 lens assembly
** with T609K lens assembly
* KHS-400C (F-chassis, G-chassis, H-chassis, I-chassis, PS2-mode laser in all PSX consoles)
** with T487 lens assembly
** with T609K lens assembly
* KHS-400R (F-chassis, G-chassis, H-chassis, I-chassis)
** Is basically just a rebadged Sanyo SF-HD7
** Variants with a metal (like KHS-400 A/B/C) and with black plastic base exist. They are fully compatible with each other, so this does not really matter.
* KWS-200A (DVR/DVD-burning laser in earlier PSX consoles)
** The only pickup in this list which has a skew sensor (little black part on a separate segment of the FPC) which works in conjunction with a skew motor
* KHM-430 (some slim consoles)
** Is basically just a rebadged Mitsumi PVR-802W
* KHM-430C (some slim consoles)
** Is basically just a rebadged Mitsumi PVR-802W
==== Sanyo ====
* SF-HD7  (F-chassis, G-chassis, H-chassis, I-chassis)
** Variants with a full and with a partial plastic cover exist. Only the full plastic cover spells "HD7" on it. They are fully compatible with each other, so this does not really matter.
** Variants with a metal (like KHS-400 A/B/C) and with black plastic base exist. They are fully compatible with each other, so this does not really matter.
* SF-DB11 (DVR/DVD-burning laser in later PSX consoles)
** Several variants exist, of which only some are compatible with the PSX; see above
* Oddly enough, the I-chassis service manual also mentions Sanyo SF-HD8, SF-HD9 and SF-HD10, which seem to be very different from SF-HD7 in construction. Never seen in any consumer PS2 console.
==== Mitsumi ====
* PVR-702W (J-chassis)
* PVR-802W [https://archive.org/details/pvr-802-w-datasheet  (download datasheet)] (some slim consoles)
==== Sankyo ====
* SPU-3170 (some K/L-chassis slim consoles)
==== Third party replacements/clones ====
* KHS-400H / PS-400H (replaces KHS-400R / SF-HD7)
* KHS-400Q / PS-400Q (replaces KHS-400C)
* KHS-400W (replaces KHS-400C)
=== Laser units ===
* Sony SLK3201PE "Laser Coupler" (combined dual wavelength laser diode + dual wavelength PDIC)
** Used in all KHS-400A, KHS-400B and KHS-400C pickups (Seemingly also in SF-HD7 despite this pickup being made by Sanyo? Needs confirmation!)
[[File:O4ZGd9F.jpg|200px]] [[File:FlbDFEw.jpg|200px]] [[File:jyypmjM.png|200px]]
== Adjustments ==
The two potentiometers on the pickups (one for each, CD and DVD) do not directly adjust laser output power. Laser output power is actually regulated in real time by the drive electronics (APC). Instead, these potentiometers adjust the output level of the monitoring photodiode which the drive electronics uses for monitoring the laser output power. Hence, any weakening of the laser output power over time is already being compensated by the drive electronics. '''This means that adjusting these potentiometers should never be necessary.''' The only way of properly adjusting these potentiometers would be by using a laser power meter, which would however only be necessary in case someone already tinkered with the potentiometers.
What turning these potentiometers actually does is overdriving the laser to higher than specified output power. The reason why this might allow discs to be read again is that it gives the drive higher tolerance to dirt on or inside the pickup's lens/prism system and/or misadjusted drive mechanics (tilt/skew).


Instead of overdriving the laser diodes (and causing long-term damage to them), the actual issues should be adressed (dirt and dust on or inside the laser, miscalibrated mechanics etc). Mechanical and electrical calibration can be done by connecting to Mechacon from a PC via UART (see [[Test points]]) and then using a tool called PMAP.
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Latest revision as of 18:47, 17 November 2024

Overview[edit | edit source]

The drive is known as MD-block in internal Sony documentation, where MD stands for "Mechanism Deck". For the optical pickup ("Laser"), see Pickups.

Electronics[edit | edit source]

Early consoles (A, A+, AB, B, B', C, C' chassis) have separate boards with some of the disc drive electronics:

  • GM-038 (early A-chassis) (SCPH-10000, early SCPH-15000, DTL-T10000)
    O2kHeUP.jpg
    • Contains RF-amp (Sony CXA2605R)
    • requires heatsinking for RF-amp
  • GM-041 (B-chassis, B'-chassis)
    IjlZhMf.jpg
    • Contains RF-amp (TI SP3727A) and tilt-driver (BA5912AFP)
    • does not require any heatsinking
  • GM-042 (late A-chassis, A+ chassis) (late SCPH-15000, GH-003 based SCPH-18000)
    AyV4TIz.jpg
    • Contains RF-amp (TI SP3727A)
    • does not require any heatsinking, unlike GM-038 used in the same chassis; a hole in the case to place a thermal pad in is still there in these consoles, but the thermal pad has been left out from the factory
  • GM-043 (C-chassis, C'-chassis)
    CRFTRP8.jpg
    • Contains RF-amp (TI SP3727A), spindle driver (BA6664FM) and focus/tracking/sled-motor/tray-motor driver (BA5810FP)
    • requires heatsinking for BA6664FM and BA5810FP
  • GM-045 (AB-chassis) (GH-008 based SCPH-18000)
    GM-045.jpg
    • Contains RF-amp (TI SP3727A)
    • does not require any heatsinking

The PSX also has a dedicated board for drive electronics, which contains all drive components for the PSX/DVR-mode/burning part of the PSX's unique dual-pickup drive. Electronics for the PS2-part of the drive are however on the mainboard (spindle motor control and driving are always handled by the PSX/DVR part of the drive).

  • MA-S38 (DESR-x000, DESR-x100)
    • 8GcBpTO.jpgTFQSjoP.jpg
  • MA-S43 (DESR-x500, DESR-x700)
    • SMelZmP.jpgBq7vfM1.jpg

Mechanics[edit | edit source]

Fat drive assemblies[edit | edit source]

Regulatory labels on the drive enclosure vary between regions

A/A+ chassis drive block[edit | edit source]

SCPH-10000 japanese launch consoles, SCPH-15000 consoles, some SCPH-18000 consoles, all japan only
KnNqiXM.jpegFHGfvMM.jpegYXgnrZs.jpeg7CTF3pm.jpegSLwBUGn.jpgVzMYOTs.jpg3ubGZSb.jpg

  • The only drive block to use the KHS-400A pickup, later units use KHS-400B (a picture of a drive inside a SCPH-18000 A+ chassis console using the KHS-400B pickup has been added above)
  • Later units have a slightly different drive board which contains a Texas Instruments SP3727A RF-Amp instead of the Sony CXA2605R RF-Amp that was used on early units
  • In these pictures, the flat flex cable between the board and the laser unit has been replaced. The only difference to the original cable is the length of the blue flap, which is longer on the original cable on the side connected to the PCB

B/B' chassis drive block[edit | edit source]

north american early/launch SCPH-30001 consoles, north america only
1IbnPhB.jpgNb6CAWI.jpgUhd08l5.jpgKCqhhZE.jpgNixc2WV.jpgDb77gPh.jpgEJf4jLE.jpg

  • Uses a radial tilt control motor only found in this drive block; all other drive blocks have their radial tilt mechanically set at the factory
  • Optical pickup is always KHS-400B

C/C' chassis drive block[edit | edit source]

later north american SCPH-30001 consoles, SCPH-30004 PAL launch consoles, SCPH-300xx consoles in many regions
Gov1HNg.jpg5kfnZit.jpgGLVqrNi.jpgKncxtr7.jpgIEjTkZ5.jpgFVtodEz.jpgBJfmUzT.jpg

  • Takes away the tilt motor introduced on the B/B' chassis drive block
  • Has both driver ICs on the drive board
  • Has an aluminium plate mounted as heatsink between the drive board and drive frame which thermally connects to the back of the PCB through a thermal pad, however, the ICs are also directly cooled from the other side through a thermal pad connecting them to the expansion bay frame

AB chassis drive block[edit | edit source]

some SCPH-18000 consoles, japan-only
AB drive top.jpgAB drive tray.jpgAB drive inside.jpgAB drive bottom.jpgAB drive mech pickup.jpgAB drive mech top.jpgAB drive mech bottom.jpg

  • Basically a C/C' chassis drive block with a different drive board that only contains the RF-amp but not the driver ICs, since these are located on the motherboard, and no heatsink. Also some slight mechanical differences in the plastic casing.

D/D' chassis drive block[edit | edit source]

later SCPH-300xx consoles in any region, early SCPH-300xxR consoles in many regions, SCPH-350xx special editions in some regions
D-chassis drive 1.jpgD-chassis drive block 2.jpgD-chassis drive block 3.jpgD-chassis drive block 4.jpgD-chassis drive block 5.jpgD-chassis drive block 6.jpgD-chassis drive block 7.jpg

  • all drive electronics moved to the motherboard, no dedicated drive board anymore

F/G chassis drive block[edit | edit source]

late japanese SCPH-30000 consoles, late SCPH-300xxR consoles in many regions, japanese SCPH-37000 special editions, SCPH-390xx consoles in many regions
P8NcLeB.jpgDqJrJCi.jpgUuwuNLx.jpgQ4KeBcc.jpg9c1lpJW.jpgKfsO92o.jpgUnMQzul.jpg

  • Optical pickup changed to KHS-400C or SF-HD7
    • Pictures show the variant that uses the Sony KHS-400C pickup. Variants using the Sanyo SF-HD7 pickup are identical aside of the pickup itself; the pickups are interchangeable (different calibration data for Mechacon required, use LensChanger or PMAP)

H/I chassis drive block[edit | edit source]

SCPH-500xx consoles in any region, SCPH-550xx special editions in some regions
Un3LrqS.jpgN13dm9Y.jpgJ5g8RtO.jpgFLt0xfo.jpgY0SF82K.jpg2EeoJVp.jpg4sSITOE.jpg

  • Pictures show the variant that uses the Sanyo SF-HD7 pickup. Variants using the Sony KHS-400C pickup are identical aside of the pickup itself; the pickups are interchangeable (different calibration data for Mechacon required, use LensChanger or PMAP)
  • Some markings on the mechanism have been made by the owner during alignment; they are not from the factory
  • Button assembly now mounted on the drive assembly
  • Mechanical changes:
    • Tilt of the two rods that the optical pickup slides on can be adjusted individually
    • Slide arm of the optical pickup now made of a metal spring instead of plastic

J chassis drive block[edit | edit source]

late SCPH-5xxxx consoles in some regions
IrvUNi2.jpgJ5KaXJn.jpgUIrCwhc.jpg

  • Very different drive:
    • Uses Mitsumi TDP062W drive mechanism based around the Mitsumi PVR-702W pickup

Slim drive assemblies[edit | edit source]

  • Some of the slim drives exist with different cable lengths for different chassis. K-chassis and L-chassis use same cable length between each other, as do P-chassis and R-chassis between each other. M-chassis and N-chassis both use different cable lenghts. This makes a total of 4 slim PS2 drive "types" regarding cable length.

Sony assemblies[edit | edit source]

The Sony assemblies are identical to and fully compatible with their Mitsumi-counterparts from the same chassis. The only difference is the branding.

  • KHM-430AAA
    • K-chassis, L-chassis
    • KHM-430(A) pickup (has only "KHM-430" embossed in it's base)

KHM-430BAA top.jpg KHM-430BAA bottom.jpg

  • KHM-430CAA
    • N-chassis, P-chassis, R-chassis
    • KHM-430C pickup

KHM430CAA top.jpg KHM430CAA bottom.jpg

Mitsumi assemblies[edit | edit source]

The Mitsumi assemblies are identical to and fully compatible with their Sony-counterparts from the same chassis. The only difference is the branding. Not found in R-chassis consoles.

  • TDP082W

TDP082W top.jpg TDP082W bottom.jpg

  • TDP182W (with M-chassis compatible cable length)
  • TDP182W (with N-chassis compatible cable length)
  • TDP182W (with P-chassis compatible cable length)

Sankyo/Philips assemblies[edit | edit source]

The Sankyo assembly is incompatible with the Sony/Mitsumi assemblies. It requires different top shells for the case and different MechaCon calibration data. Only found in K and L-chassis consoles.
While Sankyo is confirmed as the manufacturer of the whole assembly, the actual laser pickup might be manufacturerd by Philips, as SPU3170 would be consistent with their naming scheme for pickups and Sankyo was never known to produce pickups, since their expertise lies within electromechanical systems.

  • SPU3170
    • K-chassis, L-chassis
    • This is likely the name of just the optical pickup, not the whole assembly

top side of the spu3170 drive assembly used in some k and l-chassis slim ps2 consoles. bottom side of the spu3170 drive assembly used in some k and l-chassis slim ps2 consoles.

PSX drive assemblies[edit | edit source]

The PS2-part of the drive is based on the H/I chassis (SCPH-50000/55000) PS2 drive, both electrically and mechanically. The whole drive assembly is connected to the motherboard using 3 flat flex cables: One is an IDE connection to the dedicated drive board of the PSX-part, one provides power (5V, 12V, GND) and also connects the PS2-part sled motor to the motherboard (since it is controlled by the motherboard directly), and one connects the KHS-400C PS2-part pickup to the motherboard, since it is also directly controlled by the motherboard. The spindle motor is always controlled by the dedicated PSX-part drive electronics over IDE, even in PS2 mode.

  • DESR-x000 and DESR-x100 drive

8UIuNSN.jpg

  • DESR-x500 and DESR-x700 drive

XkMxA6G.jpg


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