Sony Cfd 8 Service Manual

11
CFD-V8
•Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.
AM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T2 455kHz
AM FREQUENCY COVERAGE ADJUSTMENT
Adjust for a maximum reading on level meter.
L4 520kHz
CT4 1,780kHz
AM TRACKING ADJUSTMENT
Adjust for a maximum reading on level meter.
L3 620kHz
CT3 1,400kHz
FM IF ADJUSTMENT
Adjust for a maximum reading on level meter.
T1 10.7MHz
FM...

12
CFD-V8
Adjustment Location :
[MAIN BOARD]
(Component side)
[MAIN BOARD]
(Conductor side)
CT1 : FM Tracking Adjustment
CT3 : AM Tracking AdjustmentL3: AM Tracking Adjustment
T2 : AM IF AdjustmentT1 : FM  IF Adjustmen
t
L2 : FM Frequency Coverage Adjustment
CT4: AM Frequency 
        Coverage Adjustment CT2 : FM Frequency
          Coverage Adjustment L4 : AM Frequency 
       Coverage Adjustment
L1 : FM Tracking Adjustment 

13
CFD-V8
Pin No. Pin name I/O Description
1 to 4 NC — Not used (open)
5IC—Connect to ground.
6XT1 I Connect to ground.
7XT2 — Not used (open)
8VDD — Power supply terminal (B+ 3.3 V)
9VSS — Ground terminal
10 CL1 I Oscillator terminal (4 MHz)
11 CL2 — Oscillator terminal (4 MHz)
12 RESET I Reset signal input
13 NC — Not used (open)
14 SYNC–R — Not used (open)
15 CE O Chip enable signal output
16 C–RST O Reset signal output to the LC78645E (IC701)
17 CAPH — Charge pump capacitor terminal
18 CAPL — Charge...

14
CFD-V8
• Circuit Boards Location
INLET board
BATT (R) board
BATT (L) board
FM SW boar
d
MAIN board
CD board CONTROL board VOLUME boardPOWER boardPRE board 

CFD-V8
15
15
D1
D2
T301 S1
Q1
FM
FRONT-END
AM
FRONT-END FM/AM
FRONT-END
L1
FM
RF
L2
FM
OSC
L3
FERRITE-ROD ANTENNA
L4
AM
OSC
ANT1
FM
TELESCOPIC ANTENNA
FM OSC
AM OSC T2
CF1CF2
T1
FM
IF IN
IF INAM L OUT
R OUT R-CH
LOGIC
ALC
1
MIC
DET MUTE
PB AMP
PB AMP
RECAMP(26dB) MONITOR
AMP
TAPE BUFFER
MIC AMP
MUTE PRE/REC
AMP
BIASOSC
(7dB)
OUT
REG
22
24
13
5
4 621 15
17 20
Q301 L.LO
L.RAD
LINE
TAPE
REF REC
L.RO L.IN
HEAD
HRP901
RECORD/
PLAYBACK
ERASEHEAD
HE901 AM IF
RF
IN
FM FREQUENCY CT2,L2 CT1,L1
CT3,L3 COVERAGE
AM...

16
16
CFD-V8
CNJ901
AC IN
Q409 M601F901
D302
D303 D304 D309
D314
S402
S406
S404
S405
S401
S403
S801
MOTOR
SWITCH
CD DOOR
(OPEN/CLOSE)
MEGA BASS S355
OFF ON
MUTE
RV352
STANDBYSWITCHPOWER
AMP
R-CH J301
SPEAKER
SPEAKER (R-CH)(L-CH)
T901
POWER
TRANSFORMER
Q101
R-CH
D308 POWER
SWITCH
OPR/BATT
B+
(+8.9V)
VOLUME
D310SP101
SP201
DRY BATTERYSIZE D
(IEC DESIGNATION R20)
6PCS,9V
MOTOR
CAPSTAN/REEL
(MD POWER)
S601
S351-1
FUNCTION
CD
SWITCHINITIAL
Q401
+6.9V REG
Q309,Q311
POWER
SWITCH
Q311,312
+3.3V REG
Q310,...

CFD-V8
17
17
X701
33.86MHz
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
MUTE
DRIVER
SLED/SPINDLE MOTOR DRIVE,
TRACKING/FOCUS COIL DRIVE
LASER
POWER
CONTROL
VC CD RF/
SYSTEM SERVO
PROCESSOR
MUTE
T+
T-
F+
F-
SL+
SL-
SP+
SP-
-
+
- +
M701 SLED
MOTOR M702
SPINDLE MOTOR
S701
(LIMIT) LD
G
PD
VR
TRACKING COIL
FOCUS COIL VC
A
B
C
D
E
F
OPTICAL PICK-UP
BLOCK
SW
LD
PD
LCD DRIVE,
SYSTEM CONTROL
Q701
FIN1
FIN2
LDD
VREF
LDS
VREF
DIGITAL SIGNAL
TIN
FIN
SLIN
SPIN
CE
CLK
DO
DIN
WRQ
C-RST DRF
FSEQ
PROCESSOR,
TDO
FDO...

18
18
CFD-V8
234567891
A
B
C
D
E
F
RV352
VOLUME
S351
FUNCTION
TAPE CD/RADIO OFF
 AM
 FM
 CD
BOPR/BATT
-1   -2
C
D
S801
A
R224 C224 R223
R123
C124
R124
C223
KH307
C123S355
RV352
KH1
 
R386
D1
D2
 
R812
R811
R809 R810
 
D302
C851
R805R851R819
C844
C805R806
Q801
C842 C841
C843
R818
R815
R814
R813
 
C801
 
IC801
R816
R801
C1
JC5
R3
R20
C6C5
R30 R9
C27
C20C25 C22
C3
C24R1
C19
C10C30C2
JC6
R2 R8
R4
C17 C15Q1
JC7
R319
R11
D303
D304 R315
D309
D314
R314
R153
D311
R415
R404
R401
R416
R417
R254
R403
R402
Q402
R418...

CFD-V8
19
19
6-6. SCHEMATIC DIAGRAMS – MAIN SECTION (1/3) –
R4
C17 L4
C22 C15
L1
C24 R2
CF2
CF1
C3 R30
T1
C30
C2
R8R9
C10
C27
R11
C1
R1 ANT1
IC1 C8
C9
T2 S1
Q1
C21
C36
C6C5
C23 R3
C11 C12C32
L2C7
D1 D2 JC1
JC2
JC5
JC6 JC7
R20
KH2KH1
C18
C13 C14
C4
C25
R5
C20
C19
3.3k
0.1
1 0.1
0.01 330
0.01 220
2p
10p
22k22k
4700p
4700p
10k
1000p
220 FM
TELESCOPIC ANTENNA
TA2111N 4.7
50V
4.7
50V
KRA302-RTK
SWITCH
4.7p
10p
5p10p
10
50V 3.3k
10p 10p4.7p
1SS133T-77 1SS355T-77 0
0
0
0 0
1k
4P4P
1
50V
0.47 50V 4.7
50V
22
25V...

20
20
CFD-V8
6-7. SCHEMATIC DIAGRAMS – MAIN SECTION (2/3) –
R124
C123 C124
C224
R224
R123 R223
C223
KH307 RV352(2/2)
RV352(1/2)
D
314
D
309
D 304
D
303
R315
R314C317
D
302
R319 Q201
Q311 Q312 JC401
C343
C347
D
311
C346 R360
C345
D308
C348
R349 C320
R344
R417
R418
C341
CNP304 R403
C401 R401
R402
R404
C349
KH902
C255
C154
C254C253
C155
C351
R253 C256
C152C252
R 153
C156 CNP303
C171
C271 R151
R251 IC304
S601 M601 IC401
KH306
C153
JC310
C314 Q101
Q310 Q309
Q401
Q409 D310
Q405
C402
D301
JC305
ICP301...