Sony CFD-V3 / CFD-V7 / CFD-V7L Service Manual ▷ View online
13
CFD-V3/V7/V7L
Pin No.
Pin name
I/O
Description
1 – 4
NC
—
Not used (open)
5
IC
—
Connect to ground.
6
XT1
I
Connect to ground.
7
XT2
—
Not used (open)
8
VDD
—
Power supply terminal (B+ 3.3 V)
9
VSS
—
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 pump capacitor terminal
19 – 21
VLC0 – 2
—
Capacitor connect terminal
22 – 25
COM0 – 3
O
LCD common drive output
26 – 43
S0 – 17
—
Not used (open)
44 – 48
S18 – 22
O
LCD segment drive output
49
S23
—
Not used (open)
50
ENTER
I
Key (ENTER) input
51
MODE
I
Key (MODE) input
52
PLAY
I
Key (H PLAY) input
53
FR
I
Key (l FR) input
54
FF
I
Key (L FF) input
55
STOP
I
Key (s STOP) input
56
DOOR
I
Door open/close input
57
WRQ
I
Command signal input
58
TEST
I
Test mode signal terminal input (TEST: L)
59
MUTE
O
Mute signal output
60
FSEQ
I
Frame SYNC signal input
61
DRF
I
DRF (Defect RF) input
62
DO
O
Serial data output
63
DIN
I
Serial data input
64
CLK
I
Clock signal input
SECTION 6
DIAGRAMS
6-1. EXPLANATION OF IC TERMINALS
IC801
µ
PD789316GK-903 SIGNAL PROCESSOR, D/A CONVERTER, LCD DRIVE, SYSTEM CONTROL
14
CFD-V3/V7/V7L
• Circuit Boards Location
INLET board
BATT (R) board
BATT (L) board
FM SW board
MAIN board
CD board
CONTROL board
VOLUME board
POWER board
PRE board
CFD-V3/V7/V7L
15
15
D1
D2
T301
S1
Q2
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
CF1
CF2
T1
FM
IF IN
IF IN
AM
L OUT
R OUT
R-CH
LOGIC
ALC
1
MIC
DET
MUTE
PB AMP
PB AMP
REC
AMP(26dB)
MONITOR
AMP
TAPE
BUFFER
MIC AMP
MUTE
PRE/REC
AMP
BIAS
OSC
(7dB)
OUT
REG
22
24
13
5
4
6
21
15
17
20
Q301
L.LO
L.RAD
LINE
TAPE
REF
REC
L.RO
L.IN
HEAD
HRP901
RECORD/
PLAYBACK
ERASE
HEAD
HE901
AM IF
RF
IN
FM FREQUENCY
CT2,L2
CT1,L1
CT3,L3
COVERAGE
AM FREQUENCY
L4,CT4
COVERAGE
TRACKING
AM
TRACKING
FM
IN
CT1
CT2
CT3
CT4
CV3
CV2
CV1-4
CV1-3
CV1-2
CV1-1
TU +6V
TU +6V
FM DET
AM DET
MPX
FM IF
QUAD
TU +6V
MPX IN
DET OUT
LPF1
LPF2
TU +6V
FM MODE
STEREO
MONO
STEREO
MONO
ISS
FM MODE
1
2
CD
TAPE
FM
CD
TAPE
L.OUT
ISS
L.OUT
SECTION
SECTION
MAIN
MAIN
SECTION
CD L-CH
CD R-CH
TU IN L
CD IN L
R-CH
CD
TRACKING
LW
CV3,CT3,L3
COVERAGE
CV2,L4,CT4
LW FREQUENCY
AM/LW
TU +6V
L.LINE
TU +6V
-1
-2
S301
REC
PB
IF AMP,DET,FM MPX
MIX
FM RF OUT
AM RF
IC1
IC301
ISS1
Q303
V7L
V7L
V7L
V7L
V7L
EXCEPT V7L
V7L
EXCEPT V7L
-11
-12
6-2. BLOCK DIAGRAMS –TUNER/TC SECTION–
• Signal path.
F
: FM
f
: AM
E
: PLAY
a
: REC
J
: CD
• IC link button.
Ver 1.5
-12
-11
Last digit : -11
Last digit : -12
• R-CH is omitted:
same as L-CH
16
16
CFD-V3/V7/V7L
S901
VOLTAGE
SELECTOR
220-240V AC
R
110-120V AC
VOL SEL BOARD
CNJ901
AC IN
E4
EXCEPT E4
Q409
M601
F901
F901
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
STANDBY
SWITCH
POWER
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
D310
SP101
SP201
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
6PCS,9V
MOTOR
CAPSTAN/REEL
(MD POWER)
S601
S351-1
FUNCTION
CD
SWITCH
INITIAL
Q401
+6.9V REG
Q309,
Q311
POWER
SWITCH
Q311,312
+3.3V REG
Q310,
Q402,Q405
VOLTAGE
DET
TU +6V
TAPE +6V
CD +6V
CD+ 3.3V
POWER AMP
CD
TAPE
FM
SECTION
TUNER/TC
Q801
RESET
CD +3.3V
STOP
FF
FR
PLAY
MODE
ENTER
COM0
COM3
S18
S22
CL1
CL2
RESET
DOOR
_
_
22
25
48
44
_
_
DIGITAL SIGNAL
LCD DRIVE,
PROCESSOR,
SYSTEM CONTROL
PLAY MODE
ENTER
DISPLAY
LIQUID
CRYSTAL
LCD401
S0-S4
COM0-3
RESET
SECTION
CD
SECTION
TUNER/TC
L.OUT
-1
-2
D901-904
(4MHz)
CD CONTROL
9V
AC
4.5V
IC304
IC401
IC801(1/2)
AM
FM
LW
EXCEPT V7L
V7L
-11
-12
-11
-12
• Signal path.
F
: FM
6-3. BLOCK DIAGRAMS –MAIN SECTION–
Ver 1.5
-12
-11
Last digit : -11
Last digit : -12
• IC link button
• R-CH is omitted: same as L-CH
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