Panasonic SA-AK22 Service Manual page 41

OPTICAL PICKUP
SEMICONDUCTOR
LASER
Q701
LASER
POWER DRIVE
+B
+B
PHOTO DETECTOR
E E
D C
A B
D C
F F
TRACKING
FOCUS
COIL
COIL
F+ F-
T+ T-
IC702
MN662790RSC
SERVO PROCESSOR/
DIGITAL SIGNAL
PROCESSOR/
DIGITAL FILTER/
D/A CONVERTER
IC703
AN8739SBE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVER
RESET
D4+
18
SIGNAL
GEN.
D4-
17 FOCUS
COIL
DRIVE
D3+
16
TRACKING
D3-
15
COIL
DRIVE
D1+
12
_ M
TRAVERSE
TRAVERSE
D1-
11
MOTOR
MOTOR
DRIVE
D2+
14
SPINDLE
_ M
SPINDLE
D2-
MOTOR
13
MOTOR
DRIVE
IC701
AN8885SBE1
SERVO AMP
6
LPD
+B
+B
LD
7
+
-
13
LDON
4 PDA
+B
+B
5 PDB
1
PDE
-
+
+B
2
PDF
-
F
+
+B
47
44 ARF
DSL
SYNCHRONIZING
PROTECTION
39 BDO
BDO
SERVO
/RFDET
38 /RF DET INPUT
PORT
RFENV
34 RF ENV
FE
32 FE
TE 33 TE
OFT 36 OFT
TRCRS
37
35 VDET
VREF
29
VREF
TBAL
31
TBAL
FBAL
30 FBAL
PLLF2
41
D/A
WVEL
43
CONVERTER
42
DSLF2
LDON
40 LDON
/RST
1
27 28 22
IN3 26
IN4 25
IN1 6
IN2
3
PC2
4
8
-
+
+B
-
Ach
A
+
VCBA
-
B Bch
+
+B
+B
+B
Subtracter
Ech
+B
VCBA
+B
Fch
27 22
28
+B
48
PHASE FREQUENCY
COMPARATOR
COMPARATOR
VCO
INTERPOLATION/
EFM DATA
DEMODULATOR
SYNCHRONING
16K
INTERPOLATION
SRAM
PROTECTION
PEAK
RAM
DETECTOR/
ADDRESS
AUTO CUE
GENERATOR
SUB-CODE
CLV
DEMODULATOR
SERVO
CRCC
CHECK
SERVO
CPU
CRCC
CHECK
SERVO OUTPUT
PORT
25 26 21 24 23 10 11 12 18 13 14
+B +B
9 10 11
3
OFTR
TENV
DET.
BDO
DET.
RF
DET.
-
Subtracter
+
+B
-
+
+B
-
+
-
+
+B
-
+
16 23 21
SYNDROME DIGITAL AUDIO
INTERFACE
CALCULATION
CIRC
DECODER
SOFT MUTING/
S/P
DIGITAL
CONVERTER
ATTENUATION
TIMING
GENERATOR/
PITCH
CONTROL
DIGITAL DE-EMPHASIS
DIGITAL FILTER
MICROMPUTER
INTERFACE
15 17 8 7 9
RF
ENV
ENV
19
OFTR
OFTR
17
BDO
12
BDO
/RFDET
15
/RFDET
FEN
25
FEOUT
24
FE
VCC
3
+B
VREF
26
+B
GND
14
N.C.
18
TX
6
DMUTE 16
-B
X2
59
X701
X1 58
SMCK
19
RSEL 76
+B
29
VREF
+B
OUTL 73
+
CD SIGNAL
-
OUTR
75
+
RCH
-
SUBC 55
SBCK 56
5
DVSS1
20
CSEL
78
PSEL
79
NSEL
/CLDCK 62
+B
S701(RESET)
E