Block Diagram - Panasonic SA-AK22 Service Manual

15 Block Diagram

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
T+ T- F+ F-
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-
FOCUS
17
COIL
DRIVE
D3+
16
TRACKING
D3-
15
COIL
DRIVE
D1+
12
_ M
TRAVERSE
TRAVERSE
D1-
11 MOTOR
MOTOR
DRIVE
D2+
14
_ M SPINDLE
SPINDLE
D2-
MOTOR
13
MOTOR
DRIVE
IC701
AN8885SBE1
SERVO AMP
6
LPD
+B
+B
LD
7
+
-
13
LDON
+B
PDA
4
-
A
+
+B
-
B
+B +
5 PDB
1 +B
PDE
-
Ech
+
+B
VCBA
2 +B
PDF
-
Fch
F
+
+B
47
44 ARF
PHASE
DSL
COMPARATOR
SYNCHRONIZING
PROTECTION
BDO
BDO 39
SYNCHRONING
SERVO
INTERPOLATION
/RFDET
38 /RF DET INPUT
PROTECTION
PORT
RFENV 34
RF ENV
FE
32 FE
ADDRESS
TE
33 TE
GENERATOR
OFT 36 OFT
TRCRS
37
35 VDET
VREF 29
VREF
TBAL
31 TBAL
FBAL 30 SERVO
FBAL
CPU
PLLF2
41
D/A
43 WVEL
CONVERTER
42
DSLF2
LDON
40 LDON
/RST 1
27 28 22 25 26 21 24
IN3 26
IN4 25
IN1 6
IN2
3
PC2
4
8 9
BDO
-
DET.
+
RF
DET.
Ach
Subtracter
VCBA
Bch
+B
+B
Subtracter
-
+
+B
+B
27 28 22 16 23
+B
48
SYNDROME
CALCULATION
FREQUENCY
COMPARATOR
CIRC
VCO
DECODER
INTERPOLATION/
EFM DATA
SOFT MUTING/
DEMODULATOR
DIGITAL
ATTENUATION
DIGITAL DE-EMPHASIS
16K
SRAM
PEAK
RAM
DETECTOR/
AUTO CUE
SUB-CODE
CLV
DEMODULATOR
SERVO
CRCC
CHECK
CRCC
CHECK
SERVO OUTPUT
PORT
23 10 11 12 18 13 14 15
29
+B +B
10 11
ENV
3 19
OFTR
DET. TENV
OFTR
17
BDO
12
/RFDET
15
FEN
25
FEOUT
24
-
+
VCC
3
+B
+B
VREF
26
-
+B
+
GND
14
+B
-
N.C.
+
18
-
+
21
TX
6
DIGITAL AUDIO
INTERFACE
DMUTE
16
X2
59
X1 58
S/P
CONVERTER
TIMING
SMCK 19
GENERATOR/
PITCH
CONTROL
RSEL 76
29
VREF
DIGITAL FILTER
OUTL 73
+
CD SIGNAL
-
OUTR
75
+
-
SUBC 55
SBCK
56
5
DVSS1
20
CSEL
78
PSEL
79
NSEL
MICROMPUTER
INTERFACE
/CLDCK 62
17 8 7 9
+B
S701(RESET)
E
SA-AK22
RF
ENV
OFTR
BDO
/RFDET
FE
-B
X701
+B
+B
RCH