ZS-M30 - Sony Audio Service Manual (repair manual). Page 26

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2. STOP Mode 2
1. Press the  x  (CD) button to enter the STOP mode 2, and dis-

play as below.

Display

1. Entering the CD test Mode
1. Press   POWER   button to turn on the power.
2. Place CD into tray (TOC data of the CD will be read).
3. Press and hold  EDIT  button, then press CD buttons in the

following order:
  u  (CD)

t  x  (CD)t u  (CD)t  x  (CD)

4. All LED and LCD segments start flashing.
5. Press any button to stop flashing of LED and LCD segments and

to shoe the following display.

82

PGM

Display

Specified Value:
traverse level: 0.65 to 1.20 Vp-p

2. Press the  M  and  m button to move the optical pick-up to

position of the track where signal is recorded.

3. FOCUS Mode (Traverse Confirmation)
1. Press the  u  (CD ) button to enter the FOCUS mode and dis

play as below. (Focus servo ON. CLV-S, tacking and sled servo
OFF)

Display

F-

PGM

2. Connect an oscilloscope to TP (TE) and TP (VC) on the CD

board.

3. Confirm that the traverse level of waveform satisfy specified

value as follows.

Traverse Waveform

A

B

A = B

VC

traverse level: 

0.65 to 1.20 Vp-

81

PGM

21

41

TP

(RF)

TP

(VC)

TP(TE)

C731

C715

R718

J

R716

R719

R722

R721

R7

C726

R717

C730

R786

C720

C723

C712

C721

C722

C

R715

C714

C716

R713

Q702

R783

Q701

R708

IC702

JW724

JW701

10

JW719

JW7

0

JW715

JW720

[CD BOARD] (SIDE B)

TP (TE)

TP (VC)

oscilloscope
(DC  range)

P-

PGM

4. ALL SERVO ON Mode 1
(RF Level and Jitter Confirmation 1)
1. Press the  u  (CD) button four times to enter the ALL SERVO

ON
mode 1 (start playback the disc) and display as below.
(All servo ON. LPC ON)

Display

6. Press 

  x  (CD)button to enter CD test mode (STOP MODE 1)

and to show the following display.

88

PGM

Display