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.
Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
Text excerpt from page 4 (click to view)
TRANSISTOR ILLUSTRATION
C
G
B E
S D
2SC3326 2SC4116 RN1304 RN1307 RN1310
2SJ106
ADJUSTMENT
1. Tape Speed Adjustment Settings: � Test tape: TTA�100 (Tape center) � Test point: Phones Jack (J102) � Adjustment location: SFR301 � PAUSE: OFF � VOLUME: Maximum � TAPE SPEED: Normal (Speed volume center) Method: Play back the test tape and adjust SFR301 for 3000Hz ± 10Hz. 2. Azimuth Adjustment Settings: � Test tape: TTA�330 � Test point: Phones Jack (J102) � Adjustment location: Head azimuth adjustment screw � PAUSE: OFF � VOLUME: Maximum � TAPE SPEED: Center Method: Play back the test tape and adjust screw so that the output become maximum.