DOWNLOAD Sony CDP-M11C / CMT-M11C Service Manual ↓ Size: 954.92 KB | Pages: 31 in PDF or view online for FREE

A

B

+
–

BD board

TP (TEO)

TP (VC)

oscilloscope

(DC range)

+
–

BD board

TP (RF)

TP (VC)

oscilloscope

5. Confirm that the oscilloscope waveform (S-curve) is symmetri-

cal between A and B.  And confirm peak to peak level within
2.4 ± 0.7 Vp-p.

S-curve waveform

6. After check, remove the lead wire connected in step 2.
Note:

•

Try to measure several times to make sure that the ratio
of A : B or B : A is more than 10 : 7.

•

Take sweep time as long as possible and light up the
brightness to obtain best waveform.

Procedure:
1. Connect the oscilloscope to TP (RF) and TP (VC) on BD board.
2. Turned power switch on. (stop mode)
3. Put disc (YEDS-18) in and press the  

^  button.

4. Confirm that oscilloscope waveform is clear and check RF

signal level is correct or not.

Note: Clear RF signal waveform means that the shape “≈” can

be clearly distinguished at the center of the waveform.

RF signal waveform

Procedure:
1. Connect the TP (TEST) and TP (GND) with lead wire. (Test

mode)

2. Connect the oscilloscope to TP (TEO) and TP (VC) on BD

board.

3. Turned power switch on.
4. Put disc (YEDS-18) in and press the  

^  button.

5. Press the  

6 OPEN/CLOSE 2  button. (Tracking servo and

sled servo are turned off.)

6. Confirm that the oscilloscope waveform is symmetrical on the

top and bottom in relation to 0 Vdc, and check this level.

Traverse waveform

7. After check, remove the lead wire connected in step 1.

This gain has a margin, so even if it is slightly off.  There is no
problem.
Therefore, do not perform, this adjustment.
Please note that it should be fixed to mechanical center position
when you moved and do not know original position.

[BD BOARD] – Side B –

A

B

symmetry

within 2.4 ± 0.7 Vp-p

VOLT/DIV: 200 mV
TIME/DIV: 500 ns
(with the 10 : 1 probe
in use)

level: 1.3 ± 0.3 Vp-p

level: 300 ± 100 mVp-p

IC104

IC102

IC101

FEI

TEI

GND

FOK

RF

RV101

RV103

TEO

FEO

VC

RV102

[MAIN BOARD] – Component Side –

– 13 –

TP

(GND)

TP

(TEST)

IC103

•

PHOTO SENSOR board

MOTOR DRIVE board

CHUCKING SW board

GEAR SELECT board

BD board

PANEL (LOWER) board

PANEL (UPPER) board

MAIN board

LIGHT CONNECTOR board

POWER board

TRAY ADDRESS board

– 14 –

– 20 –

• 

1

IC101 

#¡

 (RFO) (PLAY Mode)

500 mV/DIV, 500 ns/DIV

6

IC103 

@∞

 (XPCK)

1

IC103 

$™

 (X1)

3 Vp-p

10 MHz

5.3 Vp-p

14 ns

2

IC101 

$¢

 (TEI) (PLAY Mode)

50 mV/DIV, 1 µs/DIV

7

IC103 

@™

 (BCLK)

5 Vp-p

474 ns

3

IC101 

2

 (FEI) (PLAY Mode)

50 mV/DIV, 1 µs/DIV

8

IC103 

@º

 (LRCK)

5.1 Vp-p

22.7 

µ

s

4

IC103 

3

 (MDP) (PLAY Mode)

9

IC104 

6

 (XTO)

4.6 Vp-p

16.9344 MHz

5

IC103 

@•

 (RFCK)

Approx. 150 mVp-p

Approx. 1.3 Vp-p

Approx. 100 mVp-p

2.6 Vp-p

7.6 

µ

s

5.1 Vp-p

136 

µ

s

– 29 –

•  

36

PHD2

PHD1

PHD

33

LD

32

RF  M

31

RF  O

30

RF  I

29

CP

28

CB

27

CC1

26

CC2

25

FOK

24 SENS

23 C. OUT

22 XRST

21 DATA

20 XLT

19 CLK

18 VCC

17 ISET

16 SL  0

15 SL  M

14 SL  P

13

12

TA  O

TA  M

11

FSET

10

TG2

9

TGU

8

SRCH

7

FE  M

6

FE  O

5

FLB

4

FGD

3

FDFCT

2

FEI

1

FEO

48

VC

47

TDFCT

46

TZC

45

ATSC

44

TEI

43

LPFI

42

TEO

41

VEE

40

EI

39

E

38

F

37

FE BIAS

+

+

–

+

+

–

+

–

+

–

+

–

+

–

+

–

+

+

+

–

+

–

+

–

+

–

+

–

+

–

+

–

+

–

–

+

+

–

–

+

+

–

+

–

+

–

+

–

+

–

APC

–

–

–

–

LEVELS

FOK

MIRR

DFCT

RF   IV   AMP2

RF   IV   AMP1

FE  AMP

F   IV   AMP

E   IV   AMP

TE   AMP

FZC   COMP

BAL1

BAL2

BAL3

TOG1

TOG2

TOG3

TTL

IIL

IIL

TTL

TTL

IIL

• IIL  DATA  RESISTOR

• INPUT  SHIFT  RESISTOR

• ADDRESS  DECODER

• OUTPUT  DECODER

HPF   COMP

LPF   COMP

TZC   COMP

DFCT

DFCT

TM1

FS4

ATSC

• WINDOW  COMP

• FCS   PHASE
  COMPENSATION

• TRACKING

• PHASE
  COMPENSATION

• ISET

FS1

FS2

TM4

TM5

TM6

TM3

TM7

TG2

• F   SET

TG1

TM2

+

–

TOG1-3

FS1-4

TG1-2

TM1-7

PS1-4

BAL1-3

35

34