Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
Text excerpt from page 28 (click to view)
PCD-001,PCD-002,PCD-003,PCD-004
7.2 DIAGNOSIS 7.2.1 DISASSEMBLY
1. Remove the CASE B STEP (1) � (3) � (4) � (5) 2. Remove the CD MECHA UNIT STEP (1) � (2) � (3) 3. Remove the CD DOOR ASSY STEP (1) � (6) 4. Remove the CD AMP UNIT STEP (1) � (2) � (3) � (4) Disassembly process
(1) Remove the six Screws A to remove the Case Kit 1 and Ring U 2 . (2) The six lead wireD from the CD MechaUnit 3 to remove connector wire E. (3) Remove the CD Mecha Unit 3 . (4) Remove the Screw B to remove the CD SW Unit 4, CD AMP Unit 5 and Ring B 6. (5) Remove the Terminal Holder 7 Battery Terminal 8. (6) Remove the two Screws Cto remove the Case Assy0 to CD Door Assy 9.
9 CD Door Assy
1 Case Kit
CD MECHA UNIT
Laser P.U. Thread Motor
M M
Inside SW
0 Case Assy
C
CD Drive Motor
2 Ring U 3 CD Mecha Unit
D
SW102 (DOOR Detect SWITCH)
B
D
4 CD SW Unit 5 CD AMP Unit 6 Ring B 7 Terminal Holder 8 Battery
Terminal Case B
BATTERY