CMT-SE5, CMT-SE9, HCD-SE5, HCD-SE9 - Sony Audio Service Manual (repair manual). Page 4

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The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output several times.

The disc slot lock function for the antitheft of an demonstration
disc in the store is equipped.
Setting Procedure :
1.

Press the  ?/1  button to turn the set on.

2.

Press the 

[FUNCTION]

 button to set DVD function.

3.

Insert a disc.

4.

Press the 

[DVD     ]

 stick and the 

[     DVD]

 button simultaneously

for five seconds.

5.

The message “LOCKED” is displayed and the slot is locked.

Releasing Procedure :
1.

Press the 

[DVD     ]

 stick and the 

[     DVD]

  button simultaneously

for five seconds again.

2.

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

When “LOCKED” is displayed, the slot lock is not released by
turning power on/off with the  ?/1  button.

Incorrect operations may be performed if the test mode ia not
entered properly.
In this case, press the  ?/1  button to turn the power off, and
retry to enter the test mode.

If the disc tray does not open and the message “LOCKED”
appears, press the 

[DVD     ]

 stick and the 

[     DVD]

  button

simultaneously for 5 seconds or longer.
Then remove your fingers from the above stick and the button.
The message “UNLOCKED” appears for 2 seconds and the disc
tray opens.

x

x

Z

Z

x

Z

I/O board

Fix it securely with lead pins so that the wires 
do not touch the upper I/O board. 

SUBPOWER board

If a DMBSE 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 page 28).
2. Press the 2  button of remote commander to set the Drive

Manual Operation (see page 30).

3. Press the 6 button of remote commander to set the Memory

Check (see page 32).

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

a memory.