Sony MDX-C8970R (serv.man2) Service Manual ▷ View online
SERVICE MANUAL
MDX-C8970R
SUPPLEMENT-1
File this supplement with the service manual.
AEP Model
UK Model
Subject: Main/Display/Relay Boards Modification
CONTENTS
1.
DISCRIMINATION
....................................................
2
2.
DIAGRAMS
2-1. Note for Printed Wiring Boards and
Schematic Diagrams .......................................................
3
2-2. Schematic Diagram – MAIN Board (1/5) – ..................
5
2-3. Schematic Diagram – MAIN Board (2/5) – ..................
6
2-4. Schematic Diagram – MAIN Board (3/5) – ..................
7
2-5. Schematic Diagram – MAIN Board (4/5) – ..................
8
2-6. Schematic Diagram – MAIN Board (5/5) – ..................
9
2-7. Printed Wiring Board
– MAIN Board (Component Side) – .............................. 10
2-8. Printed Wiring Board
– MAIN Board (Conductor Side) – ................................ 11
2-9. Printed Wiring Board – DISPLAY Board – ................. 12
2-10. Schematic Diagram – DISPLAY Board – ..................... 13
2-11. Printed Wiring Board – RELAY Board – ...................... 14
2-12. Schematic Diagram – RELAY Board – ......................... 15
2-10. Schematic Diagram – DISPLAY Board – ..................... 13
2-11. Printed Wiring Board – RELAY Board – ...................... 14
2-12. Schematic Diagram – RELAY Board – ......................... 15
3.
ELECTRICAL PARTS LIST
............................... 16
(ECN-CSB00896)
2
1.
DISCRIMINATION
Former :1-674-589-11
New
New
:1-674-589-12
Former :1-674-590-11
New
New
:1-674-590-12
Former :1-674-591-11
New
New
:1-674-591-12
– MAIN BOARD (Component Side) –
– RELAY BOARD (Component Side) –
– DISPLAY BOARD (Conductor Side) –
3
2.
DIAGRAMS
2-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
(In addition to this, the necessary note is printed in each block)
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 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.
(The other layers' patterns are not indicated.)
Note on Schematic Diagrams:
• 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.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• 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
: MD
• Model Identification
The destination is expressed with the model according to
the language of Program Rom mounted in the set.
How to identify the model is described below.
the language of Program Rom mounted in the set.
How to identify the model is described below.
– POWER BOARD (Component Side) –
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
IC803
MSM534001E-49TSKFDR3 (TYPE C: ENGLISH, FRENCH)
MSM534001E-50TSKFDR3 (TYPE A: ENGLISH, SPANISH)
MSM534001E-51TSKFDR3 (TYPE B: ENGLISH, GERMAN)
MSM534001E-50TSKFDR3 (TYPE A: ENGLISH, SPANISH)
MSM534001E-51TSKFDR3 (TYPE B: ENGLISH, GERMAN)
4
