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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.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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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.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
AV-21BT8ENS AV-21BT8ENB AV-21BT8EPS AV-21BT8EPB AV-21BT8EES AV-21BT8EEB AV-21BT80EP
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power c ord. 2. Remove the 5 screws marked A as shown in the Fig. 1. 3. Withdraw the rear cover toward you.
CHECKING THE PW BOARD
To check the back side of the PW Board. 1) Pull out the PW Board. (Refer to REMOVING THE MAIN PWB). 2) Erect the PW Board vertic ally so that you c an easily check the back side of the PW Board. [CAUTION] " When erecting the PW Board, be c areful so that there will be no contacting with other PW Board. " Before turning on power, make sure that the wire connector is properly connec ted. " When conducting a check with power supplied, be sure to c onfirm that the CRT EARTH WIRE (BRAIDED ASS�Y) is connected to the CRT SOCKET PW board.
REMOVING THE MAIN PWB
" Removing the rear cover. 1. Slightly raise the both sides of the chassis by hand and withdraw the MAIN PWB backward. (If necess ary, take off the wire clamp, connectors etc.)
REMOVING THE SPEAKER
" Removing the rear cover. 1. Remove the 4 screws marked B, and remove speaker as s hown in Fig. 1. 2. Remove the speaker.
WIRE CLAMPING AND CABLE TYING
1. Be sure to clamp the wire. 2. Never remove the c able tie used for tying the wires together. Should it be inadvertently removed, be sure to tie the wires with a new c able tie.
REMOVING THE FRONT AV PWB
" Removing the rear cover. " Removing the MAIN PWB. 1. Remove the 2 screws marked C. 2. Remove the FRONT AV PWB.
REMOVING THE HEADPHONE PWB
" Removing the rear cover. " Removing the MAIN PWB. 1. Remove the 1 screw marked D. 2. Remove the HEADPHONE PWB.
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No.52054
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