HCD-DP900D, MHC-DP900D - Sony Audio Service Manual (repair manual). Page 4

4

Jig (J-2501-155-A)
to RF240 board : CN004

Jig (J-2501-199-A)
to RF240 board : CN002

MB board

CHANGE OF OPTICAL PICK-UP
Optical Pick-up has been replaced from KHM-240AAA (TYPE A) to KHM-270AAA (TYPE B) from the middle of production.
In parallel with that, certain parts of MB board have been changed.

SILVER: KHM-240AAA (TYPE A)
BLACK: KHM-270AAA (TYPE B)

optical device

REF

TYPE A

TYPE  B

KHM-240AAA

KHM-270AAA

R076

1-216-837-11 METAL CHIP

22K

5%

1/10W

No Mount

R077

1-216-815-11 METAL CHIP

330

5%

1/10W

1-216-833-11 METAL CHIP

10K

5%

1/10W

R079

1-216-801-11 METAL CHIP

22

5%

1/10W

1-216-845-11 METAL CHIP

100K

5%

1/10W

If a MB board is exchanged, “DRIVE AUTO ADJUSTMENT’’ may
be unable to be performed. In this case, initialize a memory in the
following procedure.
1.

Starting Test Mode (See Supplement-1 page2).

2.

Press the 2  button of remote commander to set the Drive
Manual Operation (See Supplement-1 page 8).

3.

Press the 6 button of remote commander to set the Memory
Check (See Supplement-1 page 10).

4.

Press the  [CLEAR]  button of remote commander to initialize a
memory.

The disc tray lock function for the antitheft of an demonstration
disc in the store is equipped.

Releasing Procedure :
1.

Press three buttons of  PLAY MODE  ,   x  and  m
 simultaneously.

2.

The message “UNLOCKED” is displayed and the tray is
unlocked.

Note : When “LOCKED” is displayed, the tray lock is not released

    by turning power on/off with the  POWER  button.