Sony XR-C7200R Service Manual
XR-C7200R
SERVICE MANUAL
For RM-X2S (Remote Commander),
please refer to RM-X2S/X3S Service
Manual (9-960-039-∏) previously issued.
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.
SPECIFICATIONS
AEP Model
UK Model
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MG-25D-136
MICROFILM
FM/MW/LW CASSET TE CAR STEREO
TABLE OF CONTENTS
1. GENERAL
Location of Controls ....................................................... 3
Resetting the Unit ........................................................... 4
Detaching the Front Panel............................................... 4
Setting the Clock ............................................................. 4
Using the Rotary Commander ........................................ 5
Installation....................................................................... 6
Connections ..................................................................... 7
2. DISASSEMBLY ......................................................... 10
3. ASSEMBLY OF MECHANISM DECK........... 13
4. MECHANICAL ADJUSTMENTS ....................... 16
5. ELECTRICAL ADJUSTMENTS
Test Mode........................................................................ 16
Tape Deck Section .......................................................... 16
Tuner Section .................................................................. 17
6. DIAGRAMS
6-1. IC Pin Function Description ........................................... 21
6-2. Printed Wiring Board – MAIN Section –....................... 25
6-3. Schematic Diagram – MAIN Section –.......................... 29
6-4. Printed Wiring Boards – PANEL Section – .................... 33
6-5. Schematic Diagram – PANEL Section –........................ 35
7. EXPLODED VIEWS ................................................ 41
8. ELECTRICAL PARTS LIST ............................... 44
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
– 2 –
SECTION 1
GENERAL
This section is extracted from
instruction manual.
– 3 –
– 4 –
– 5 –
– 6 –
– 7 –
– 8 –
– 9 –
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
COVER ASS’Y
1
claw
2
three claws
3
cover ass’y
1
claw
FRONT PANEL ASS’Y
3
Push the bearing (L).
1
Push the button (OPEN).
2
Push the bearing (R).
4
front panel ass’y
– 10 –
SUB PANEL ASS’Y
)
(
)
k
3
two screws
(PTT2.6
×
8)
4
2
two screws
(PTT2.6
two claws
×
8)
6
sub panel ass’y
5
claw
1
screw
(PTT2.6
×
8
MECHANISM DECK (MG-25D-136)
2
connector
(CN201)
1
two screws
×
6)
(2.6
4
mechanism dec
(MG-25D-136)
3
flexible flat cable
CN231
– 11 –
HEAT SINK
d
5
screw
(PTT2.6 × 8)
1
three screws
(PTT2.6 × 8)
6
heat sink
2
4
screw
(PTT2.6 × 8)
3
three screws
(PTT2.6 × 8)
two screws
(PTT2.6 × 8)
MAIN BOARD
2
two ground point screws
1
ground point screw
3
main boar
4
insulator
– 12 –
SECTION 3
ASSEMBLY OF MECHANISM DECK
Note: Follow the assembly procedure in the numerical order given.
HOUSING
4
Fit claw on B part.
3
Put the housing
under A part.
housing
2
Install the hanger onto
two claws of the housing.
5
Fit projection on C part.
C
part
7
Holder the hanger by bending the claw.
1
Install the catch to the hanger.
hanger
6
Fit projection on D part.
8
Hold the hanger by
bending the claw.
ARM (SUCTION)
A
part
projection
B
part
D
part
2
Move the arm (suction) in the arrow
direction and fit on projection.
1
Fit the arm (suction) on the shaft.
– 13 –
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