Sony ZS-2000 (serv.man2) Service Manual ▷ View online
– 27 –
– 28 –
6-5. BLOCK DIAGRAM — AUDIO SECTION —
SWITCH (1)
BOARD
SWITCH (2)
BOARD
POWER
BOARD (2/2)
BOARD (2/2)
VOLUME
BOARD
74
41
42
43
30
28
L-CH
MO6V
CD5V
R-CH
MO6V
P5V
LINE
TU
CD
AL
L- CH
CN304
MAIN BOARD (2/2)
CONTROL BOARD (3/3)
LINE BOARD (1/2)
SPK (R) BOARD
SPK (L) BOARD
SEL
CN303
CNP302
CN402
A-MUTE
79 CD
BU5V
10 I0
12
10
OSC2
11 OSC1
11 I1
12 I2
12 I2
9 ST
ST
04
NAR
RESET
7 NAR
8
8
15
6
4
RST
80 AL-CON
KEY1
KEY2
KEY3
KEY3
RST
JOG-A
JOG-B
B
CD
BOARD
A
TU
BOARD
3
3
29
SYSTEM CONTROLLER
IC801(3/3)
J401
CNP401
R-CH
H/P BOARD
4
5
4
5
CN903
CNP304
CN904
CNP802
CN805
CN804
CNP801
CN806
2
1
2
5
2
6
7
3
4
1
2
1
2
1
1
1
5
5
i
76 CLK
77 DATA
77 DATA
9
PCM
SYNTH.
POWER
CONT
Q803
ROM
DAC
16
17
18
1
2
RESET
IC802
2
2
3
3
TRE
BASS
DYNAMIC
BASS
AMP
13
2
5
19
20
CN304
Q106
Q205
CN303
POWER
CONT
Q306
7
1
H/P AMP
IC304
P12V
3
5
1
7
L-CH
AL A OUT
CN801
(2/2)
CN301(2/2)
5
5
11
11
13
13
14
14
16
16
X804
4.19MHz
VDD
BU5V
ALARM
VR
RV801
VOLUME
KEY IN
MATRIX
KEY IN
MATRIX
V-DAT/LAT
V-CLK
L
17
15
SY/BY
ELECTRONIC VOLUME
IC301
POWER AMP
IC303
R-CH
L+
L-
SP302
R-CH
SPEAKER
SP301
L-CH
SPEAKER
ALARM
IC804
J402
LINE IN
AOUT
1
2
1
2
2
1
4
3
• Signal path
: CD
: FM
: CD
: FM
ZS-2000
(Page 26)
(Page 24)
1
A
B
C
D
E
F
2
3
4
5
6
7
8
9
10
11
FM
ANTENNA
AM
ANTENNA
TP(VT)
TM1
1
MAIN BOARD
CNP305
1-677-166-
(21)
21
ANT1
FM
TELESCOPIC
ANTENNA
: Solder brideg
D8
D9
14
REG BOARD
(HEAT SINK)
75
Ω
ZS-2000
– 29 –
– 30 –
6-6. PRINTED WIRING BOARD — TUNER SECTION — • Refer to page 22 for Circuit Boards Location.
(Page 42)
(Page 53)
D1
B-8
D2
B-8
D3
C-5
D4
B-6
D5
D-6
D6
E-9
D7
E-9
D8
B-8
D9
B-8
IC1
E-7
IC2
D-3
• Semiconductor
Location
Ref. No.
Location
Common Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• 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
J
: CD
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
Common Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
75
Ω
– 31 –
– 32 –
6-7. SCHEMATIC DIAGRAM — TUNER SECTION — • Refer to page 56 for IC Block Diagrams.
• Refer to page 29 for Note.
Note on Schematic Diagram:
• Voltage is dc with respect to ground under no-signal
(detuned) condition.
no mark : FM
(
no mark : FM
(
) : AM
ZS-2000
(Page 43)
IC2
w;
(X OUT)
• Waveform
1
0.9Vp-p
75kHz
5
µ
sec/div
20mV/div
(Page 55)
CD BOARD
10
1-676-092- (11)
11
04
MAIN BOARD
CN303
12
LOADING BOARD
CN790
13
LINE BOARD
CN403
11
PICK-UP RELAY BOARD
CN707
5
CONTROL BOARD
CN802
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
TP(RF)
ZS-2000
– 33 –
– 34 –
6-8. PRINTED WIRING BOARD — CD SECTION —
• Refer to page 22 for Circuit Boards Location.
• Refer to page 29 for Note.
• Refer to page 29 for Note.
IC701
D-3
IC702
E-6
IC703
H-5
Q701
D-1
• Semiconductor
Location
Ref. No.
Location
(Page 42)
(Page 37)
(Page 46)
(Page 41)
(Page 37)
• Waveforms (MODE:PLAY)
1
2
3
7.6
µ
sec
4
2.5V
5
2.4Vp-p
IC702
wa
(MDP)
Approx. 150mVp-p
IC701
rj
(TI)
0.95-1.35Vp-p
IC701
ed
(RFO)
1.0Vp-p
16.9344MHz
IC702
ua
(XTAO)
Approx. 300mVp-p
IC701
1
(FEO)
2.5V
0.1V/div 20
µ
sec/div
50mV/div 50nsec/div
0.1V/div 20
µ
sec/div
0.1V/div 2
µ
sec/div
50mV/div 20nsec/div
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