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MICROFILM
XM-2252HX
SERVICE MANUAL
STEREO POWER AMPLIFIER
SPECIFICATIONS
US Model
Canadian Model
AEP Model
UK Model


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Specifications ............................................................................. 1
1. SERVICING NOTE ....................................................... 2
2. GENERAL ....................................................................... 3
3. ELECTRICAL ADJUSTMENTS
Self-Diagnosis Function ...................................................... 7
Idling Adjustment ................................................................ 8
4. DISASSEMBLY
5-1. Bottom Plate, Panel (Front), Panel (Rear) Removal ..... 9
5-2. AMP/Power Board Removal ........................................ 9
5. DIAGRAMS
5-1. IC Block Diagrams ..................................................... 10
5-2. Printed Wiring Board ­ Amplifier Section ­ .............. 11
5-3. Schematic Diagram ­ Amplifier Section ­ ................. 13
5-4. Printed Wiring Board ­ Power Section ­ .................... 15
5-5. Schematic Diagram ­ Power Section ­ ...................... 17
6. EXPLODED VIEWS ................................................... 19
7. ELECTRICAL PARTS LIST .................................... 21
TABLE OF CONTENTS
SECTION 1
SERVICING NOTE
CANCELLING THE PROTECTOR DURING SERVICING
Cut JW213 on the amplifier board to cancel the protector.
After servicing always be sure to return JW213 to its original state.
JW213
C927
C929
C928
C930


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SECTION 2
GENERAL
This section is extracted from
instruction manual.


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