Sony ZS-D55 (serv.man2) Service Manual ▷ View online
– 47 –
– 48 –
– 50 –
– 49 –
ZS-D55
6-9. SCHEMATIC DIAGRAM (CONTROL SECTION)
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.
•
: B+ Line.
• Power voltage is dc 12V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
no mark : FM
• 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.
VOLT/DIV : 2 V AC
TIME/DIV : 0.1
TIME/DIV : 0.1
µ
sec
VOLT/DIV : 2 V AC
TIME/DIV : 10
TIME/DIV : 10
µ
sec
r
Waveforms (CONTROL Section)
1
IC801
r;
2
IC801
os
5 Vp-p
4.21 MHz
5 Vp-p
32.768 kHz
2
3
4
5
6
A
1
B
C
IC1
IC2
13
(13)
1-676-535-
A
CONTROL
BOARD
CNP804
(Page 45)
B
AUDIO
BOARD
CNP309
(Page 33)
02
TP
(VT)
L3
MW/LW
FERRITE-ROD
ANTENNA
D3
T1
T2
ANT1
FM
TELESCOPIC
ANTENNA
TUNER BOARD
R64
R16
R43
C45
C25
C46
C7
C5
R42
R7
R18
R12
R9
R19
R17
JC13
JC25
JC6
JC7
JC4
JC3
R22
C1
C6
C67
C40
C3
C2
Q44
BCE
Q43
ECB
Q41
ECB
Q42
ECB
Q12
ECB
Q14
BCE
CT5
DGS
Q61
L3-1
L3-2
JC45
– 53 –
– 54 –
– 51 –
– 52 –
ZS-D55
6-10. PRINTED WIRING BOARDS (TUNER SECTION)
6-11. SCHEMATIC DIAGRAM (TUNER SECTION)
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.
•
: B+ Line.
•
H
: adjustment for repair.
Note:
• X
: parts extracted from the component side.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
r
Waveform (TUNER Section)
1
IC2
w;
(X OUT)
VOLT/DIV : 0.5 V AC
TIME/DIV : 5
TIME/DIV : 5
µ
sec
1.5Vp-p
75 kHz
• Power voltage is dc 12V and fed with regulated dc power
supply from external power voltage jack.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW
<
> : LW
D1
B-4
D2
B-4
D3
B-4
D10
B-5
D11
B-5
IC1
C-4
IC2
C-2
Q12
C-3
Q14
B-2
Q41
B-3
Q42
B-4
Q43
B-3
Q44
B-3
Q61
B-2
Ref. No.
Location
r
Semiconductor
Location
• 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.
F
: FM
f
: AM
– 55 –
z
IC Block Diagrams (Main Section)
IC305 LA2010
IC301 TA2068N
23
22
21
4
5
6
3
2
1
20
24
7dB
LOGIC
ALC1
DET
26dB
15
16
17
9
8
7
10
11
12
18
19
14
13
7dB
ALC2
26dB
15k
6k
6k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
10k
1k
1k
1k
1k
LINE
RADIO
RADIO
TAPE
TAPE
TAPE
LINE/IN-L
MIC
I/EX
TU-L
LINE/TU
TU-R
TAPE
LINE/IN-R
MIC
REC
OUT/L
OUT/R
VCC
LINE
TAPE
BUF AMP
A2
BUF AMP
B1
BUF AMP
B2
BUF AMP
A1
MIC
AMP1
MUTE
MUTE
MUTE
ON
ON
ON
NAB
AMP2
MONITOR
AMP
MONITOR
AMP
NAB
AMP1
REC
AMP2
REC
AMP1
REF AMP
2.1
L.PO
L.NF
L.RO
L.IN
R.IN
R.RO
R.NF
R.PO
MIC
NF
REF
GND
ALC
2
3
5
4
6
7
8
9
1
AMP
IN PUT
DET OUT
NF
TIME
GND
OUT PUT
VCC 2
GND
VCC 1
COMP(1)
COMP(2)
RESET
HOLD
– 56 –
IC701 CXA1992BR
z
IC Block Diagrams (CD Section)
Charge
up
FEO
FEI
FDFCT
FGD
FLB
FE_O
FE -
SRCH
TGU
TG2
FSET
TE-
TA-O
SL+
SL-
SLO
ISET
VCC
VCC
LOCK
CLK
XLT
DATA
XRST
C. OUT
SENS1
SENS2
FOK
CC2
CC1
CB
CP
RFI
RFO
RF-M
RFTC
LD
PD
PD1
PD2
F. BIAS
F
E
EI
GND
TO
LPFI
TI
ATSC
TZC
VC
FZC
TM2
VEE
VEE
TM3
TM5
TM4
TM6
VCC
VCC
TM7
ISET
TTL
↓
IIL
IIL
↓
TTL
IIL
↓
TTL
IIL DATA REGISTER,
INPUT SHIFT REGISTER,
ADDRESS DECODER,
SENS SELECTOR,
OUTPUT DECODER
INPUT SHIFT REGISTER,
ADDRESS DECODER,
SENS SELECTOR,
OUTPUT DECODER
DFCTO IFB1-6
BAL1-4
TOG1-4
TOG1-4
FS1-4
TG1-2
TM1-7 PS1-4
FOH
FOL
TGH
TGL
BALH
BALL
ATSC
TZC
FZC
FSET
TG2
VEE
VCC
FS1
FS2
FOCUS
PHASE COMPENSATION
PHASE COMPENSATION
DFCT
FS4
TRACKING
PHASE COMPENSATION
PHASE COMPENSATION
TG1
TM1
DFCT
FZC COMP.
VEE
VCC
VCC
TDFCT
TZC COMP.
ATSC
WINDOW
COMP.
WINDOW
COMP.
E-F BALANCE
WINDOW COMP.
WINDOW COMP.
TRK. GAIN
WINDOW COMP.
WINDOW COMP.
FO. BIAS
WINDOW
COMP.
WINDOW
COMP.
VEE
TGFL
TOG1
TOG2
TOG3
TOG4
BAL1
BAL2
BAL3
BAL4
IFB1
IFB2
IFB3
IFB4
IFB5
IFB6
FE AMP
VEE
E IV AMP
F IV AMP
VCC
APC
VCC
VEE
LASER POWER CONTROL
VEE
PD1 IV
AMP
AMP
PD2 IV
AMP
AMP
RF
SUMMING
AMP
SUMMING
AMP
VCC
VEE
VEE
LEVEL S VEE
LEVEL S VEE
MIRR
VCC
DFCT
FOK
VCC
LDON
LPCL
LPC
TGFL
MIRR
DFCT1
CC1
1
2
3
4
5
6
7
8
9
10
11
12
13
26
39
40
41
42
43
44
45
46
47
48
49
50
51
52
38
37
36
35
34
33
32
31
30
29
28
27
24
24
23
22
21
20
19
18
17
16
15
14
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