Sony XR-C6204J Service Manual ▷ View online
– 17 –
Adjustment Location:
– SET UPPER VIEW –
Tape Speed Adjustment
TU1
RV1 MW Auto Scan/Stop Level Adjustment
RV201 Dolby Level Adjustment (R-ch)
RV2 FM Auto Scan/Stop Level Adjustment
RV4 FM Stereo Separation Adjustment
RV101 Dolby Level Adjustment (L-ch)
– SET BOTTOM VIEW –
TP(GND)
TP(DOLBY-R)
TP(DOLBY-L)
Dolby Level
Adjustment
Adjustment
– 18 –
6-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
• X
: parts extracted from the component side.
• Y
: parts extracted from the conductor side.
• b
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
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.
•
C
: panel designation.
•
U
: B+ Line.
•
H
: adjustment for repair.
• 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 (SW)
〈〈
〉〉
: 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 (SW)
E
: TAPE PLAYBACK
L
: BUS AUDIO IN
SECTION 6
DIAGRAMS
XR-C6204J
D723
D-8
D724
D-9
D731
B-7
D732
D-7
D733
D-7
D734
B-7
D781
D-13
IC21
E-3
IC22
I-2
IC301
H-4
IC331
D-5
IC351
I-12
IC501
I-7
IC551
J-12
IC552
K-11
IC581
C-14
IC611
E-13
IC751
B-7
Q51
E-11
Q52
E-11
Q53
E-11
Q121
G-4
Q151
G-6
Q171
A-4
Q181
A-3
Q251
G-6
Q271
A-3
Q281
B-3
Q351
H-12
Q352
H-12
Q353
H-12
Q354
H-13
Q551
I-10
Q571
D-9
Q581
G-11
Q582
G-13
Q583
F-9
Q601
J-13
Q602
J-12
Q621
F-7
Q622
F-7
– 19 –
– 20 –
6-2.
PRINTED WIRING BOARD – MAIN Board –
D1
F-1
D51
F-11
D52
D-11
D351
I-12
D352
G-13
D501
J-5
D551
F-12
D552
F-12
D553
I-9
D554
F-12
D571
D-10
D572
D-10
D581
G-11
D582
C-13
D583
B-13
D584
B-13
D585
C-13
D586
B-13
D587
G-12
D588
E-9
D601
J-13
D610
D-11
D611
D-11
D613
D-11
D614
C-11
D621
E-6
D622
E-7
D623
E-6
D624
E-7
D701
J-3
D702
K-3
D703
K-2
D704
K-3
D705
K-5
D706
K-5
D707
K-5
D708
K-5
D709
K-5
D710
J-3
D711
K-5
D712
K-5
D713
K-5
D721
D-8
D722
D-8
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
(Page 26)
XR-C6204J
– 21 –
– 22 –
6-3.
SCHEMATIC DIAGRAM – MAIN Board (1/2) –
•
See page 29 for IC Block Diagrams.
•
See page 31 for Waveforms.
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