CDVD Drive

From PS2 Developer wiki
Jump to navigation Jump to search

Overview

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

Mechanics

Slim slide/spindle/laser assemblies (work in progress)

  • Some of these 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 drive types regarding cable length.
  • KHM-430AAA (with K-chassis/L-chassis compatible cable length)
    • K-chassis, L-chassis
    • KHM-430 laser
  • KHM-430BAA (with M-chassis compatible cable length)
    • M-chassis
    • KHM-430C laser
  • TDP182W (with M-chassis compatible cable length)
    • M-chassis
    • PVR-802W laser
  • TDP182W (with N-chassis compatible cable length)
    • N-chassis
    • PVR-802W laser
  • KHM-430CAA (with P-chassis/R-chassis compatible cable length)
    • P-chassis, R-chassis
    • KHM-430C laser

Electronics

Laser

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 the base, 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 laser 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). Some early T609K have a white ring around the lens. These lasers have a violet marking at the adjustment screw.
  • 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 laser assemblies: 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 laser 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 (except the KHS-400C), so you can't replace a KWS-200A with a SF-DB11 (same goes for vice versa)
  • PVR-802W and KHM-430 seem to be mostly identical; KHM-430 is probably a rebadged PVR-802W, as with KHS-400R / SF-HD7

Laser types

Sony

  • KHS-400A
  • KHS-400B
    • with T487 lens assembly
    • with T609K lens assembly
  • KHS-400C
  • KHS-400R
  • KWS-200A (DVR/DVD-burning laser in earlier PSX consoles)
  • KHM-430
  • KHM-430C

Sanyo

  • SF-HD7
  • SF-DB11 (DVR/DVD-burning laser in later PSX consoles)

Mitsumi

Sankyo

  • SPU-3170

third party replacements/clones

  • KHS-400W (replaces KHS-400C)
  • KHS-400H (replaces KHS-400R and SF-HD7)