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The purchased manual is an high quality scan of the original Philips paper-based Service Manual. I am very satisfied!
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The purchased manual is an scan of the original Panasonic paper-based Service Manual. Unfortunately the contrast is not perfect, but I am satisfied anyway!
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The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
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It paid to find this Service Manual, couldn't find it anywhere else. Exactly what I wanted. Received within 24 hours.
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Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
SECTION 3 DISASSEMBLY
3.1 DISASSEMBLY PROCEDURE 3.1.1 REMOVING THE TWIN PORT BASS BLASTER UNIT [AV-21VT31/P] � Unplug the power supply cord. (1) Disconnect the TWIN PORT BASS BLASTER UNIT's cord from the rear of the TV set. (2) Remove the TWIN PORT BASS BLASTER UNIT by pulling it upwards. NOTE: After removing the TWIN PORT BASS BLASTER UNIT, proceed to the following procedure. 3.1.2 REMOVING THE REAR COVER
� Unplug the power cord.
(1) Remove the 9 screws [A] and 4 screws [B] as shown in Fig.1. (2) Withdraw the REAR COVER toward you. CAUTION: When reinstalling the rear cover, carefully push it inward after inserting the MAIN PWB into the REAR COVER groove. 3.1.3 REMOVING THE MAIN PW BOARD
� Remove the REAR COVER.
(1) Slightly raise the both sides of the MAIN PWB by hand and remove the PB stopper [D] from the front cabinet. (2) Withdraw the MAIN PWB backward. (If necessary, take off the wire clamp and connectors, etc.)
3.1.4 REMOVING THE SPEAKER
� Remove the REAR COVER.
(1) Remove the 2 screws [C] as shown in Fig.1. (2) Follow the same steps when removing the other hand SPEAKER.
3.1.5 CHECKING THE MAIN PW BOARD � To check the back side of the MAIN PWB. (1) Pull out the MAIN PWB. (Refer to REMOVING THE MAIN PW BOARD). (2) Erect the MAIN PWB vertically so that you can easily check its back side. CAUTIONS: � Before turning on power, make sure that the CRT earth wire and other connectors are properly connected. � When repairing, connect the DEG. COIL to the DEG. connector on the MAIN PWB. 3.1.6 WIRE CLAMPING AND CABLE TYING (1) Be sure to clamp the wire. (2) Never remove the cable tie used for tying the wires together. Should it be inadvertently removed, be sure to tie the wires with a new cable tie.
(No. 52180) 1-7
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