Sony XR-1800RD Service Manual ▷ View online
13
SECTION 5
DIAGRAMS
5-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
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.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
(
no mark : FM
(
) : MW
〈〈
〉〉
: LW
[
] : TAPE PLAYBACK
∗
: Impossible to measure
• 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
: MW (LW)
E
: TAPE PLAYBACK
Note on Printed Wiring Board:
• 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.
14
• Waveforms
– MAIN Board –
– MAIN Board –
4
IC1
qa
(XT IN)
2
IC150
0
(XI)
– KEY Board –
1
IC900
y;
(OSC)
1
IC121
w;
(XO)
3.2 Vp-p
125 ns
2 Vp-p
30.5
µ
s
3.7 Vp-p
139 ns
2.1 Vp-p
230 ns
2.4 Vp-p
26.6
µ
s
3
IC1
8
(X IN)
15
15
XR-1800RD
Q100
B C E
R128
D612
A
K
R628
C622
C606
Q604
B C E
R608
D608
AK
C610
R614
B
C
E
Q610
C13
C623
JC31
D51
KA
D50
K
A
K
JC37
JC220
D611
KA
R50
IC50
JC20
R51
C7
R8
R7
C4
C1
C3
R6
C50
R5
R1
R35
C605
R611
E
C
B
Q607
Q615
B C E
C607
R622
Q614
B C E
R621
R624
R620
R604
R605
E C B
Q602
R609
R626
Q605
B C E
JC10
E C B
Q603
R34
R33
Q612
B C E
C51
R9
R10
R15
R16
R31
C5
JC39
C8
R23
JC38
R606
E C B
Q601
R607
E C B
Q609
R613
Q608
B C E
R612
R623
R600
C600
R601
E C B
Q600
R603
R554
R556
JC5
E C B
Q554
C6
JC9
R40
R14
R17
R11
JC46
C9
JC18
Q51
B C E
Q50
B C E
R615
C613
R70
R71
D65
K
A
D66
K
A
JC45
C12
C10
JC16
JC17
R254
C255
E C B
Q252
E C B
Q556
C471
JC4
R555
R602
C604
R610
C601
C603
C500
C501
R451
JC47
C458
C462
C464
R563
R550
R552
R562
C466
JC42
R561
R560
R551
R115
C128
R553
C467
JC41
C463
C465
R452
C459
JC32
R450
D351
KA
C451
IC1
C62
JC15
C154
C153
C157
R116
R150
R151
C150
C152
Q351
B C E
C362
R365
R366
C158
C155
IC150
1
10
20
11
IC450
C573
C574
C571
C572
R580
R579
R581
R578
R574
R576
R575
C556
R577
JC12
R571
R572
R570
JC40
IC120
1
4
8
5
E C B
Q121
R121
R129
R123
Q120
DG
S
R119
R101
C121
R102
C131
C130
R125
C124
C123
R122
C120
R120
C117
D100
KA
R124
C132
IC121
11
20
10
1
R113
R112
Q104
B C E
Q103
B C E
Q101
B C E
R114
R110
R111
R126
Q105
B C E
E C B
Q102
C202
R360
R353
R352
R362
R359
C357
C359
R357
R355
IC350
1
4
8
5
C352
JC7
R361
C356
R356
R354
C358
R358
JC14
R351
C351
C350
R350
R103
R104
C107
E C B
Q250
Q251
B C E
C254
C133
R200
JC6
C200
C201
R251
R253
R250
R252
R107
C134
C109
R105
C116
JC44
JC43
C108
R106
R127
C250
C251
JC36
C106
C104
C102
R100
C101
+
C103
+
C105
+
RV100
C354
+
C355
+
Q350
R363
R364
D350
D67
L150
R60
R63
R64
R65
R66
R67
R68
D64
D63
D62
D61
R61
R62
D53
D52
Q611
R616
L1
R12
R18
R21
C2
+
D2
R4
R3
C53
+
C52
+
C609
+
D610
D607
C608
+
D606
Q613
R627
R625
D601
C620
+
D609
D604
D605
R32
C621
D603
D600
D501
D502
D550
R22
R24
R25
R26
R27
R39
R38
C450
+
C456
+
C550
+
C552
+
C506
+
C557
+
R573
C135
C136
C551
+
C553
+
C469
+
C468
+
C470
+
C457
+
R37
R29
R30
R28
X100
L120
C118
+
C125
+
C122
C253
+
C453
+
C252
+
C452
+
C454
+
C455
+
C353
+
C360
+
X150
C151
+
C554
+
DSP100
(CHASSIS)
(CHASSIS)
CN902
1
2
12
11
CN901
1
11
TU100
FM/AM
TUNER UNIT
1
23
15
16
IC500
23
22
1
2
CN900
FM/AM
ANTENNA
L600
F901
9
1
16
8
16
17
19
CN903
(POWER)
A
KEY BOARD
CN906
MAIN BOARD
1-671-704-
12
(12)
05
1
2
3
4
5
6
7
8
9
10
11
12
13
A
B
C
D
E
F
G
H
I
1
20 21
40
41
60
61
80
1
11
12
22
23
33
34
44
3
1
2
C126
B
C
E
Q106
C129
C127
C100
D602
C602
+
TP101
(SD)
S2
(RESET)
X2
X1
TO
CN901
1
11
M901
(CAPSTAN/REEL)
M
RED
BLU
S901
(DIRECTION)
FWD
M
REV
BRN
BRN
ORG
ORG
S902
(FF/REW)
(OFF : PLAYBACK)
S903
(TAPE DETECT)
(ON : TAPE IN)
YEL
YEL
PIK
BLK
WHT
HP901
PLAYBACK
HEAD
5-2.
PRINTED WIRING BOARD – MAIN Board –
D2
G-1
D50
F-1
D51
F-2
D52
H-4
D53
H-4
D61
H-6
D62
H-6
D63
H-5
D64
H-5
D65
I-5
D66
I-5
D67
I-7
D100
D-9
D350
H-8
D351
F-5
D501
C-5
D502
C-5
D550
D-4
D600
B-5
D601
B-5
D602
B-5
D603
C-4
D604
D-3
D605
D-3
D606
D-2
D607
E-1
D608
D-2
D609
C-3
D610
D-2
D611
G-1
D612
B-2
IC1
G-3
IC50
I-3
IC120
D-10
IC121
E-8
IC150
H-7
IC350
G-9
IC450
E-6
IC500
B-7
Q50
I-4
Q51
I-4
Q100
G-10
Q101
F-9
Q102
F-9
Q103
F-8
Q104
E-8
Q105
E-9
Q106
D-8
Q120
D-10
Q121
C-10
Q250
G-10
Q251
F-10
Q252
F-5
Q350
H-8
Q351
G-8
Q554
E-4
Q556
E-5
Q600
D-4
Q601
E-3
Q602
E-3
Q603
E-3
Q604
D-2
Q605
E-2
Q607
D-2
Q608
D-4
Q609
E-4
Q610
E-2
Q611
I-4
Q612
I-3
Q613
C-2
Q614
D-3
Q615
C-3
• Semiconductor
Location
Ref. No.
Location
(Page 18)
16
16
XR-1800RD
5-3.
SCHEMATIC DIAGRAM – MAIN Board (1/2) –
•
See page 14 for Waveforms.
•
See page 20 for IC Block Diagrams.
Click on the first or last page to see other XR-1800RD service manuals if exist.