Panasonic SA-AK18 Service Manual
OPTICAL PICKUP
SEMICONDUCTOR
LASER
+B
PHOTO DETECTOR
E
D
A
D
F F
25
24
3
26
18
RF
ENV
OFTR
BDO
/RFDET
FE
+B
+B
IC701
AN8839NSBE2
SERVO AMP
6
Q701
LASER
POWER DRIVE
LPD
7
LD
+B
4
PDA
13
LDON
5
E
C
B
C
PDB
1
PDE
+B
2
PDF
+B
+B
+
-
-
+B
+B
+B
+
-
Ach
A
+
VCBA
Bch
B
+
Vref
+B
+
F
+
+B
Ech
VCBA
+B
Fch
TBAL
FBAL
27
28
Subtracter
+B
8
9
RFIN
CSBRT CEA
RF
Subtracter
+B
+B
+B
TEIN
PDOWN
22 23
16
+B
+B
10
11
19
OFTR
/RFDET
FEOUT
VREF
ENV
BDO
FEN
VCC
GND
N.C.
17
12
15
14
DET.
+
-
OFTR
DET.
RF
+
+B
+
+B
TEOUT
21
N.C.
TENV
BDO
DET.
3
+
+
+
T+ T-
TRAVERSE
MOTOR
SPINDLE
MOTOR
COIL
FOCUSTRACKING
COIL
F-F+
IC703
AN8739SBE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR
DRIVE
18
17
16
15
12
M
11
_
14
M
13
_
20
LDON
IC702
MN662790RSC
SERVO PROCESSOR
DIGITAL SIGNAL/
PROCESSOR/
DIGITAL FILTER/
D/A CONVERTER
RESET
D4+
SIGNAL
GEN.
FOCUS
D4-
COIL
DRIVE
D3+
TRACKING
D3-
COIL
DRIVE
D1+
TRAVERSE
MOTOR
D1-
DRIVE
D2+
SPINDLE
MOTOR
D2-
DRIVE
9
PGND1
PGND2
/RST
VREF
PVCC1
PVCC2
VCC
PC2
1
24
26
IN3
25
IN4
6
IN1
3IN2
4
8
21
23
RF
ARF
44
SYNCHRONIZING
PROTECTION
BDO
/RFDET
RFENV
FE
TE
OFT 36 OFT
VREF
TBAL
FBAL
LDON
BDO
39
/RF DET
38
RF ENV
34
FE3332
TE
TRCRS
37
VDET
35
VREF
29
TBAL
31
FBAL
30
PLLF2
41
WVEL
43
DSLF2
42
LDON
40
+B
+B
47 80448
DSLF
PHASE
DSL
COMPARATOR
SYNCHRONIZING
SERVO
INTERPOLATION
INPUT
PROTECTION
PORT
ADDRESS
A/D
GENERATOR
CONVERTER
SERVO
SERVO
CPU
D/A
CONVERTER
TVD27FOD
TRD
KICK
ECS
TRV23PC
22
28
25
2126
TBAL
FBAL
PLLF
DV DD1
FREQUENCY
COMPARATOR
VCO
RAM
CLV
SERVO OUTPUT
PORT
ECM
24
10 11
+B
50
SSEL
V DD
AV DD2
EFM
DATA
DEMODULATOR
16K
SRAM
PEAK
DETECTOR/
AUTO CUE
SUB-CODE
DEMODULATOR
CRCC
CHECK
CRCC
CHECK
SENSE
FLOCK
TLOCK
+B
7260
AVDD1
/RST
BLKCK
SQCK
1418 1312 15
/RSTEST/DO
BLKCK
SYNDROME
CALCULATION
CIRC
DECODER
INTERPOLATION
/SOFT MUTING
/DIGITAL
ATTENUATION
DIGITAL DE-EMPHASIS
SUBQ
SUBQ
TE
DIGITAL FILTER
MASH LOGIC
MIRCOMPUTER
INTERFACE
MDATA
STAT
8 7 9
17
MDATA
STATUS
DIGITAL AUDIO
INTERFACE
S/P
CONVERTER
LOGIC
PWM
PWM
LOGIC
MCLK
MLD
+B
MLD
MCLK
RESET
TIMING
GENERATOR
/PITCH
CONTROL
S701(RESET)
DMUTE
SMCK
+
-
+
-
SUBC
SBCK
DVSS1
CSEL
PSEL
NSEL
/CLDCK
TX 6
RSEL
VREF
OUTL
OUTR
X1 58
16
59X2
19
76
29
73
75
55
56
5
20
78
79
62
-B
X701
+B
+B
CD SIGNAL
R CH
(CD SIGNAL)
FM ANT
1
5
Z120
RF AMP
Q1 Q2
MIXER
Q3
OSC
3 4 6
(FM)
AM ANT
CF201
7
Q4
BUFFER
+B
8
Q101,Q102
FM
IF AMP
CF202
AM
ANT
COIL
Z101
AM
OSC
COIL
(FM)
+B
IC101
LA1833NMNTLM
FM/AM IF AMP,
DET/AM OSC,
MIX/FM MPX
RCH
REG
PHASE
DET
VCO
FF
14
DECODER
STEREO
SWITCH
FF
13
PILOT
CANCEL
PILOT
FF
DET
24 23 22
ALC
BUFFER
LEVEL
DET
FM
IF
FM
DET
1 2
AM
OSC
S-CURVE
REG
3
AM
MIX
AM/FM
IF
BUFFER
4
AM
RF AMP
AM
IF
AGC
COMP
TUNING
DRIVE
SD
65
182021 19 17
AM
DET
ST
87 109 1211
16 15
+B
Z102
AM
IFT
16
17
18
11
PHASE DETECTOR
CHARGE PUMP
UNLOCK
DETECTOR
REFERENCE
DIVIDER
SWALLOW COUNTER
1/6,1/17,4 BITS
12 BITS PROGRAMMABLE
DIVIDER
1
2
1
20
14
12
13
X102
ST/DO
SD
X103
5
DO
2
UNIVERSAL
COUNTER
15
+B
Q106
POWER
+B
SUPPLY
SWITCH
+B
(FM:ON)
POWER ON
RESET
SHIFT REGISTER LATCH
19
710 912 6
8
IC102
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
C2B
I/F
CE
3DI
4CL
ST/DO
CE
DI
CL
E
STATUS
SUBQ
Q902
INTERFACE
Q901
INTEFACE
IC1
TA7291P
MOTOR DRIVE
8
Vs
-B
REG
5
IN1
IN2
6
4
Vref
1
7
Vcc
GND
OUT1
2
OUT2
10
M
RM1
+B
Q1
POWER
SUPPLY
CONTROL
+B
SW2
SW1
SW3
ST/DO
BLKCK
/CDRST
RESTSW
SD
CE/MLD
DI/MDATA
CL/MCLK
VT
Q903
INTERFACE
A
26
27
28
MLD/PLLCE
MDATA/PLLDA
MCLK/PLLCLK
2921
SD
RESTSW
3018 2220
CDRST
BLKCK
SQCLK
STATUS
ST/DO/SUBQ
2319 24
CHG_CW
M38199MF227
CHG_CCW
IC600
+B
SW4
SW5
25 17
CHG_HALF
CHG_AD2
SYSTEM CONTROL/FL DRIVE
16 44
CHG_AD1
43
CHG_SW1
CHG_SW2
Q350
PLUNGER
SUPPLY
Q351
DRIVER
SWITCH
SUPPLY
45
CHG_PLGR
-B
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