1
WRR-801A
WRU-801A
TABLE OF CONTENTS
1.
OPERATING INSTRUCTIONS
2.
SERVICE OVERVIEW
2-1. BOARDS LOCATION .................................................................................. 2-1
2-2. PRECAUTION IN WIRING HARNESS ...................................................... 2-1
2-3. ERROR MESSAGES ..................................................................................... 2-2
2-4. SERVICE FUNCTION .................................................................................. 2-2
2-5. TUNER UNIT REMOVAL ........................................................................... 2-3
2-6. SERVICE INFORMATION OF TUNER UNIT ........................................... 2-4
3.
ELECTRICAL ALIGNMENT
3-1. PREPARATION ............................................................................................ 3-1
3-1-1.
Equipment and Tools .............................................................................. 3-1
3-2. ADJUSTMENTS ............................................................................................ 3-2
3-2-1.
Tuner unit (WRU-801A) Adjustment .................................................... 3-3
3-2-2.
Overall Characteristics Check ................................................................ 3-8
4.
SEMICONDUCTOR PIN ASSIGNMENTS
5.
BLOCK DIAGRAM
6.
SPARE PARTS
6-1. NOTES ON REPAIR PARTS ........................................................................ 6-1
6-2. EXPLODED VIEW AND PARTS LIST ....................................................... 6-2
6-3. ELECTRICAL PARTS LIST ......................................................................... 6-4
6-4. SUPPLIED ACCESSORIES ........................................................................ 6-10
7.
SCHEMATIC DIAGRAMS AND BOARD LAYOUTS
MB-761 BOARD ........................................................................................... 7-2
CN-1510 BOARD .......................................................................................... 7-6
