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