MICROFILM
SERVICE MANUAL
FM/MW/LW CASSETTE CAR STEREO
AEP Model
UK Model
Model Name Using Similar Mechanism
XR-C5100R
Tape Transport Mechanism Type
MG-25Y-136
SPECIFICATIONS
XR-C5110R/C5120R
Photo: XR-C5120R
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TABLE OF CONTENTS
1.
GENERAL
Location of controls ........................................................
3
Resetteing the unit ...........................................................
4
Detaching the front panel ................................................
4
Setting the clock ..............................................................
4
Labelling the rotaty commander .....................................
4
Using the rotary commander ..........................................
4
Adjusting the sound characteristics ................................
5
Attenuating the sound .....................................................
5
Changing sound and display settings .............................
5
Boosting the bass sound ..................................................
5
Installation .......................................................................
6
Connections .....................................................................
7
2.
DISASSEMBLY ......................................................... 10
3.
ASSEMBLY OF MECHANISM DECK ........... 11
4.
MECHANICAL ADJUSTMENTS ....................... 14
5.
ELECTRICAL ADJUSTMENTS ......................... 14
6.
DIAGRAMS
6-1. Block Diagram TUNER Section .............................. 19
6-2. Block Diagram TAPE/MAIN Section ...................... 21
6-3. Block Diagram DISPLAY/
KEY CONTROL/BUS CONTROL/
POWER SUPPLY Section ........................................... 23
6-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 25
6-5. Printed Wiring Board
MAIN Board (Component Side) .............................. 27
6-6. Printed Wiring Board
MAIN Board (Conductor Side) ................................ 29
6-7. Schematic Diagram MAIN Section (1/2) ................. 31
6-8. Schematic Diagram MAIN Section (2/2) ................. 33
6-9. Printed Wiring Board PANEL Section .................... 35
6-10. Schematic Diagram PANEL Section ....................... 37
6-11. IC Pin Function Description ........................................... 42
7.
EXPLODED VIEWS ................................................ 46
8.
ELECTRICAL PARTS LIST ............................... 49
Flexible Circuit Board Repairing
· Keep the temperature of the soldering iron around 270 °C dur-
ing 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 dam-
aged by heat.
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SECTION 1
GENERAL
This section is extracted from
instruction manual.
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