CMT-C7NT, HCD-C7NT - Sony Audio Service Manual (repair manual). Page 44

44

Be sure to perform this adjustment when the optical pick-up is replaced.
If the adjustment results becomes “Adjust NG!”, the optical pick-up may be faulty or the servo system circuits may be abnormal.

Procedure:
1. Load the check disc (TDYS-1).
2. Press the  . m

 “R”

  or  M >

 “R”

  button to display “AG Set (CD)” (C11).

3. When the  

ENTER/YES “R”  

button is pressed, the adjustment will be performed automatically.

“Complete!” will then be displayed momentarily when the value is recorded in the non-volatile memory, after which the
display changes to “AG Set (CD)” (C11).

4. Press the  

MD 

Z  button and take out the check disc.

Procedure:
1. Load the test disc (MDW-74/GA-1).
2. Press the  . 

“R”

  or  >

 “R”

  button to display “AG Set (MO)” (C10).

3. When the  

ENTER/YES “R”  

button is pressed, the adjustment will be performed automatically.

“Complete!” will then be displayed momentarily when the value is recorded in the non-volatile memory, after which the
display changes to “AG Set (MO)” (C10).

4. Press the  

MD 

Z  button and take out the test disc.

It is useful to use the jig for checking the waveform. (Refer to Servicing Notes on page 6)

D101

CN101

IC101

CN105

IC151

IC190

1

7

1. I+3V
2. Iop
3. GND
4. TE
5. FE
6. VC
7. RF