CDVD Drive

Overview

The drive is known as MD-block in internal Sony documentation.

Electronics

• DSP
• MechaCon
• Driver
• RF-Amp

Mechanics

Slide/spindle/pickup assemblies (work in progress)

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

• TDP062W
  • J-chassis
  • PVR-702W pickup

• KHM-430AAA (with K-chassis/L-chassis compatible cable length)
  • K-chassis, L-chassis
  • KHM-430 pickup

• KHM-430BAA (with M-chassis compatible cable length)
  • M-chassis
  • KHM-430C pickup

• TDP182W (with M-chassis compatible cable length)
  • M-chassis
  • PVR-802W pickup

• TDP182W (with N-chassis compatible cable length)
  • N-chassis
  • PVR-802W pickup

• KHM-430CAA (with P-chassis/R-chassis compatible cable length)
  • P-chassis, R-chassis
  • KHM-430C pickup

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, 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-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 PS2 game has been detected
• 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

Pickup types

Sony

• KHS-400A (A-chassis, A+-chassis, probably AB-chassis) <imgur w=240>SLwBUGn.jpg</imgur> <imgur w=240>vzMYOTs.jpg</imgur>
• KHS-400B (probably 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)
• KHS-400R (F-chassis, G-chassis, H-chassis, I-chassis)
• KWS-200A (DVR/DVD-burning laser in earlier PSX consoles)
• KHM-430 (some slim consoles)
• KHM-430C (some slim consoles)

Sanyo

• SF-HD7 (F-chassis, G-chassis, H-chassis, I-chassis)
• SF-DB11 (DVR/DVD-burning laser in later PSX consoles)

Mitsumi

• PVR-702W (J-chassis)
• PVR-802W (download datasheet) (some slim consoles)

Sankyo

• SPU-3170 (some 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)