Sony CFD-V5 Service Manual ▷ View online
– 23 –
– 24 –
– 26 –
– 25 –
CFD-V5
6-4. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) –
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark :FM (RADIO SECTION),
no mark :FM (RADIO SECTION),
PLAY (TAPE SECTION)
(
) :AM (RADIO SECTION),
REC (TAPE SECTION)
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: FM
f
: AM
E
: PB
a
: REC
J
: CD
z
Refer to page 30 - 31 for IC Block Diagrams.
1
2
Q301
C
T301
VOLT/DIV : 1 V AC
TIME/DIV : 5
TIME/DIV : 5
µ
sec
VOLT/DIV : 1 V AC
(ATT : 1/10)
TIME/DIV : 5
µ
sec
r
Waveforms
3.7Vp-p
17.95
µ
sec
34Vp-p
17.95
µ
sec
– 29 –
– 30 –
– 27 –
– 28 –
6-5. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) –
CFD-V5
Note:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
•
U
: B+ Line.
• Power voltage is dc 9V and fed with regulated dc power
supply from battery terminal.
• Voltages and waveforms are dc with respect to ground
under no-signa conditions.
no mark :CD PLAY
no mark :CD PLAY
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
J
: CD
IC301 TA2068N
z
IC BLOCK DIAGRAMS
IC1 CXA1238S
30
29
4
5
6
7
8
9
10
11
12
13 14 15
3
2
1
28 27
26 25 24 23 22 21
20
19
18
17
16
REG
FM FRONT-END
AM FRONT-END
VCO
MPX REG.
1/2
COUNTER
1/2
COUNTER
PD1
PD2
MUTING
DECODER AMP
MONO/ST
SELECT
RIPPLE
FILTER
AUTOBLEND
BAND PASS
MUTE
TUNING
INDICATOR
FM IF/
DISCRI
AM
IF/DET
GND
PLL LPF
MPX REG
VCO
FM
DISCRI
MUTE
AM OSC
AFC
FM OSC
REG 1.25V
FM RF
AM RF IN
FM RF IN
BAND SELECT
AM IF IN
FM IF IN
TUNING
GND
VCC
L CH OUT
R CH OUT
VCO
PILOT LPF
DET
PLL LPF
AFC/AGC
AGC AFC
RIPPLE
FIL
TER
FE GND
FM/AM
FE OUT
21
22
23
24
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
LOGIC
7dB
26dB
26dB
7dB
ALC1
ALC2
DET
MIC
AMP1
1k
10k
NAB
AMP2
NAB
AMP1
ON
MUTE
MUTE
MUTE
BUF AMP
A2
BUF AMP
A1
BUF AMP
B1
BUF AMP
B2
TAPE
TAPE
–––––
TAPE
–––––
LINE
RADIO
10k
10k
10k
1k
1k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
15k
6k
1k
6k
LINE
RADOI
TAPE
REC
AMP1
REC
AMP2
REF AMP
2.1
ON
ON
MONITOR
AMP
MONITOR
AMP
L. LIN
MIC
I/EX
L. RAD
L. LO
REC
TAPE
R. LIN
MIC
IN
R. LO
LINE
R. RAD
VCC
MIC
NF
R. PO
R. NF
R. RO
R. IN
GND
REF
L. IN
L. RO
L. NF
L. PO
AGC
z
Refer to page 30 - 31 for IC Block Diagrams.
r
Waveforms
1
IC701
rj
RF
2
VOLT/DIV : 0.5 V AC
TIME/DIV : 0.5
TIME/DIV : 0.5
µ
sec
IC702
y;
XOUT
VOLT/DIV : 0.5 V AC
TIME/DIV : 20 nsec
TIME/DIV : 20 nsec
1.5–2.0Vp-p
1.7Vp-p
16.9MHz
– 31 –
IC703 LA6541L-TLM
IC701 LA9250M-MPB
I/V
TE
BAL
T.SERVO
&T.LOGIC
&T.LOGIC
F.SERVO
&F.LOGIC
&F.LOGIC
SPINDLE
SERVO
SERVO
RF AMP
SLC
SLED
SERVO
SERVO
1
64
63
62
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
33
34
35
36
37
38
39
17
23
18
+
-
-
+
-
+
+
-
+
-
+
-
+
-
49
50
+
-
19
20
21
22
+
-
-
+
VCA
APC
58
57
56
55
54
53
52
51
REF
61
60
59
RF DET
LATCH
VCA
40
41
42
43
44
45
46
47
48
24
28
29
30
31
32
27
25
26
-
+
NC
LDS
LDD
SLC
SLI
VR
REF 1
VCC
FSS
TBC
FSC
DRF
DEF
BH1
PH1
LF2
SLOF
TGRF
SP8
EFBAL
FSTA
LASER
NC
TJP
TGL
TOFF
TES
HFL
CLV
GND
RF
RF -
FD
SP
FD-
FA
FA-
FE
FE-
SPG
SLD
SL-
SL+
OSC
NC
SLEQ
SP-
SPD
FIN2
FIN1
E
F
TB
TE-
TE
TESI
SCI
TH
TA
TD-
TD
JP
TO
NC
VCC
MUTE
TIN
NC
T+
T-
VCC
SLIN
NC
SL+
SL-
VREF
11k
Ω
11k
Ω
11k
Ω
11k
Ω
1
1
2
3
4
5
6
F+
F-
NC-
FIN
REG OUT
REG IN
7
8
9
10
11
12
24
23
22
21
20
19
SP-
SP+
NC
SPIN
CD
RESET
18
17
16
15
14
13
+
-
+
-
LEVEL
SHIFT
LEVEL
SHIFT
BTL
DRIVER
BTL
DRIVER
BTL
DRIVER
BTL
DRIVER
LEVEL
SHIFT
LEVEL
SHIFT
REGULATOR
RESET
Vcc
– 32 –
SECTION 7
EXPLODED VIEWS
NOTE :
• -XX, -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Items marked “ * ”are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference
number in the exploded views are not
supplied.
supplied.
• Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
parts list.
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
The components identified by mark 0
or dotted line with mark 0 are critical
for safety.
Replace only with part number specified.
or dotted line with mark 0 are critical
for safety.
Replace only with part number specified.
7-1. FRONT CABINET SECTION
1
X-3378-493-1 CABINET (FRONT) SUB ASSY
2
3-043-737-01 WINDOW (TU)
3
3-049-428-01 KNOB(VOL)
4
4-951-620-01 SCREW(2.6X8), +BVTP
* 5
1-677-107-11 CONNECTOR BOARD
* 6
1-677-106-11 CONTROL BOARD
7
3-031-551-01 POINTER
8
3-031-558-01 SHAFT(TU)
9
3-049-429-01 KNOB(TU)
SP101
1-529-723-11 SPEAKER (10cm) (L-CH)
SP201
1-529-723-11 SPEAKER (10cm) (R-CH)
1
4
4
7
9
8
4
#1
#1
SP201
#1
#1
SP101
5
4
6
#1
#1
#1
#2
#2
not supplied
3
2
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