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AV-28BT8ENS / AV-28BT8ENB / AV-28BT80EN AV-28BT8EPS / AV-28BT8EPB / AV-28BT80EP AV-28BT8EES / AV-28BT8EEB/ AV-28BS88EN
SPECIFIC SERVICE INSTRUCTIONS
DISASSEMBLY PROCEDURE
REMOVING THE REAR COVER
1. Unplug the power c ord. 2. Remove the 8 screws marked A as shown in the Fig. 1. 3. Remove the 4 screws marked B around the AV TERMINAL BOARD. 4. 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 AV TERMINAL BOARD
" Removing the rear cover. 1. Remove the 2 screws marked C fastened the AV TERMINAL BOARD. 2. Remove the AV TERMINAL BOARD.
REMOVING THE MAIN PWB
" Removing the rear cover. " Removing the AV TERMINAL BOARD. 1. Remove the 3 screws marked D as shown in the Fig.1. 2. 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.)
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 SPEAKER
" Removing the rear cover. 1. Remove the 4 screws marked E, and remove speaker as s hown in Fig. 1. 2. Remove the speaker.
REMOVING THE FRONT AV & HEADPHONE PWB
" Removing the rear cover. " Removing the MAIN PWB. 1. Remove the 2 screws marked F. 2. Remove the FRONT AV & HEADPHONE PWB.
REMOVING THE FRONT CONTROL PWB
" After removing the rear cover . 1. Remove the MAIN PWB ASS�Y. 2. Remove the 5 screws marked G, and remove the FRONT CONTROL PWB.
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No.52057
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