Text preview for : BLK33P1.PDF part of Panasonic AK-33 Complete Service Manual for Panasonic AK-33 also help to guide repairing similar panasonic chassis



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RF

OPTICAL PICKUP

IC701 AN8885SBE1

+B

+B

SERVO AMP
SEMICONDUCTOR LASER 6 LPD
+B

8
RF

9
RFIN

10
CSBRT

11
CEA

OFTR DET.
+B

3 TENV

ENV

19

ENV

Q701 LASER POWER DRIVE
+B

7

LD

+ -

OFTR BDO /RFDET FEN

17 12 15 25

OFTR BDO /RFDET

13

LDON
+B

+ RF DET.

BDO DET.

+B

PHOTO DETECTOR

4

PDA
+B

-A + +B

Ach VCBA Subtracter
+B

FEOUT + VCC

24 3
+B

FE

+B

Bch

E

E 5 PDB
+B +B

D A D

C B C 1 PDE +
+B +B +B

+
+B

VREF GND

26 14

+B

Ech VCBA

Subtracter
+B
+

+ +
+B
PDOWN TEOUT

2 F F

PDF +F
+B

N.C.

18

Fch
TBAL FBAL TEIN

+
N.C.

27
LDON

28

22

16

23

21

TBAL

FBAL

T+

T- F+

F-

RF

47
DSLF

48
PLLF

TE

TRACKING FOCUS COIL COIL

+B

44

ARF

SYNDROME CALCULATION DSL PHASE COMPARATOR FREQUENCY COMPARATOR

DIGITAL AUDIO INTERFACE

TX

6

DMUTE VCO CIRC DECODER X2

16

-B

59 X701

IC702 MN662790RSC

SYNCHRONIZING PROTECTION EFM DATA DEMODULATOR INTERPOLATION/ SOFT MUTING/ DIGITAL ATTENUATION X1 S/P CONVERTER TIMING GENERATOR/ PITCH CONTROL SMCK RSEL VREF 19 76 29 58

SERVO PROCESSOR/ DIGITAL SIGNAL PROCESSOR/ DIGITAL FILTER/ D/A CONVERTER
BD /RFDE RFEN F T OF 39 38 34 32 33 36 37 35 VRE TBA FBA 29 31 30 BDO /RF DET RF ENV FE TE OFT TRCRS VDET VREF TBAL FBAL SERVO CPU SERVO INPUT PORT
A/D CONVERTER

DIGITAL DE-EMPHASIS SYNCHRONING INTERPOLATION PROTECTION 16K SRAM DIGITAL FILTER
PWM LOGIC

+B +B

CLV SERVO

SUB-CODE DEMODULATOR CRCC CHECK CRCC CHECK

MASH LOGIC

RAM ADDRESS GENERATOR

PEAK DETECTOR/ AUTO CUE

+ -

OUTL

73

CD SIGNAL

PWM LOGIC

+ -

OUTR

75

RCH

SUBC SBCK DVSS1

55 56 5 20 78 79 62

41

PLLF2 WVEL DSLF2 LDON D/A CONVERTER SERVO OUTPUT PORT MICROMPUTER INTERFACE

IC703 AN8739SBE2

43 42 40

CSEL PSEL NSEL /CLDCK

SENSE

MDATA

FLOCK

TLOCK

FOCUS COIL/ TRACKING COIL/ LDO TRAVERSE MOTOR/ SPINDLE MOTOR DRIVER
/RST 18 D4+ RESET SIGNAL GEN. FOCUS COIL DRIVE TRACKING COIL DRIVE TRAVERSE MOTOR DRIVE SPINDLE MOTOR DRIVE IN3 26 1

BLKCK

SQCK

SUBQ

MCLK

STAT

KICK

/RST

ECM

FOD

MLD

ECS

TRD

TVD

TRV

PC

+B

27 28 22 25 26 21 24 23

10 11 12 18

13 14 15

17

8

7

9 S701(RESET)

17 16 15

D4D3+ D3D1+ D1D2+ D2-

STATUS

MDATA

IN4

25

RESET

BLKCK

ST/DO

SUBQ

MCLK

/RST

MLD

E

TRAVERSE MOTOR

M _ M _

12 11 14 13

IN1

6

IN2 PC2

3 4

SPINDLE MOTOR