Sony TMR-RF975R, Service Manual

Page: 6 / 14

TMR-RF975R
6 6
4-2. SCHEMATIC DIAGRAM –TX-BASE SECTION –
C436
10
CNP401
CNP402
C406
C416
C422
C425
C426
C427
C428
C429
C430
C444
C445
C451
C452
C468
C478
D404
D405
D406
D407
D408
D409
D410
JC430
L408
L409
Q401
Q402
Q405
Q406
Q407
R401
R403
R406
R407
R408
R411
R413
R416
R417
R418
R421
R422
R423
R424
R425
R426
R427
R428
R429
R430
R431
R432
R433
R438
R440
R446
R448
R449
R452
R455
R456
R457
R458
R459
R461
R464
R466
R467
R468
R469
R470
R471
R472
R474
R482
RV401
RV402
RV403
X401
JC403
IC401
JW405
JW403
JW410
JW409
JW411
JW413
JW415
J401
JW401
JW402
JW407
JW404
JW406
JW416
S401
ANT401
S402
D402
C480
D403
J404
L401
L402
L405
C483
C439
C456
C455
C454
C462 C453
C443
C442
C432
C433
C431
C417
C469
C423
C441
C407
C403
C413
C421
C475
D401
L410
C458
C460
C461 C459
L406
C457
Q408
Q403
IC402
Q404
R454
R453
R404
R414
L407
R490
VCO401
IC403
R441
R489
R483
R486
R485
R484
C470
J402
C466
R473
C440
16V
B-B CON 3P
B-B CON
6PIN
0.022
0.022
220
16V
0.022
0.01
0.01
100p
100p
4.7
16V
100p
100p
220
16V
100
16V
0.01
0.0033
1SS133T
1SS133T
RD5.1ES
MTZ-77-5.6B
MTZ-77-2.0B
MA77
MA77
0
19KLPF
19KLPF
2SC2712L
2SC2712L
KTA1266-GR
2SC2712L
2SC2712L
33k
51
33k
1k
2.2k
33k
51
33k
1k
2.2k
100k
3.3k
220
3.3M
100k
3.3k
220
680
10k
10k
4.7k
2.2M
22k
220k
1k
1.2k
1k
15k
22k
1k
1.2k
4.7k
1k
15k
4.7k
1k
22k
4.7k
1.8k
33k
33k
1.2k
470
620
22k
47k
10k
4.7k
38K
0
BA3308F
(ANTENNA)
SLR342MGT
0.01
11ES2-TA1B
2p
1
0.0033
10p
100p
100p 10 16V
1
0.0056
0.0056
1
10
16V
2.2
50V
0.1
100p
10
16V
2.2
50V
0.001
0.001
22
16V
0.1
SLR342VCT7
10
16V
390p
0.0015 510p
5mH
0.1
DTA124KA
CHANNEL
SET
2SC2712L
MODULATION
KIA78S05
KTA1266-GR
POWER
SWITCH
47k
680k
33k
33k
20mH
6.8k
914MHZ
NJM2035M
2.2k
18k
2.2k
18k
1.2k
1.3k
47
16V
0.01
620
100p
DC IN 9V
+5V REG
PRE AMP
MPX
B
OFF
ON
NOISE FILTER
CHANNEL
1
2
3
chg
RV401-403
MODULATION
VCO UNIT
power
Q405-407
POWER ON/OFF
Q401,402
AUDIO INPUT
DET
R
L
A
AUDIO IN
BOARD
CHG-NR
(CN602)
BOARD
CHG-NR
(CN601)
Note on schematic diagrams.
Note:
• All capacitors are in F unless otherwise noted. pF:
F 50 WV or
less are not indicated except for electrolytics and tantalums.
• All resistors are in and 1 /
4
W or less unless otherwise specified.
• : B+ Line.
• : adjustment for repair.
• Power voltage is dc 9V and fed with regulated dc power supply
from external power voltage jack.
• Voltages are dc with respect to ground under no-signal conditions.
• Voltages are taken with a VOM (Input impedance 10 M ).
• Signal path.
: FM
: AUDIO
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com