Panasonic CT-32SX31CE Service Manual

Also see for CT-32SX31E: Operating instructions Service manual

Panasonic CT-32SX31CE Service Manual Manual pdf 9 page image

- 9 -Disassembly for ServiceBack CoverRemove all the screws marked with an arrow( )from the back of the Receiver.Note: Screw configuration, type, and numberof screws vary depending on themodel of the Receiver serviced andthe application; various models arecovered in this Manual. Use samehardware when reassembling thereceiver.• 4 screws at the top edge of the Receiver.• 4 screw by the A/V jacks.• 1 screw by the antenna jacks.• 1 screw at each lower corner of the Receiver.• 1 screw by the retainer plate of the AC power cord.A-Board - Main ChassisThe A-Board assembly rest on a chassis tray alongwith the D-Board. Slide chassis tray out. Gently lift trayand pull out. Disconnect plug connectors; release wireties and holders as required for complete chassisremoval.1. A & D-Boards are secured to the chassis tray withfive screws.2. The A-Board is mated to the D-Board by threeflexible connectors: A1, A2 & A3 (G1, G2 & G3 onthe G-Board, respectively). To remove eitherboards, unplug the connectors on the A-Board.Note: Some tie-wraps that secure the wire dressingsmay need to be unfastened for chassisremoval.L-Board - CRT OutputPlugs into the socket on the CRT neck.To remove this board, first unplug the board fromthe CRT neck, then disconnect L1, L2 & L3connectors, to disconnect the focus F1(Red Cable)& F2(White Cable) cables, pull the tab and releasethe cables, finally disconnect the screen cable fromthe D-Board Fly-Back.To reinsert back the cables, remember the originalposition of cables, F1(red cable) goes to A on theCRT socket and F2(white cable) goes to B on theCRT socket.Figure 5. F1 & F2 cables releaseTo release screen GND cables from L-Board L11 & L12connectors, insert a wire in both sides of connector andpull upwards the cable, then remove the wire(See Fig. 6)Figure 6. L-Board Screen GND cables releaseSpeakersSpeaker is secured to the cabinet’s front with 4screws.Keyboard Push Button AssemblyFastened to the inside of the cabinet front.Disassembly for CRT Replacement1. Discharge the CRT as instructed in the SafetyPrecautions (see page 2).2. Disconnect the yoke (DY) plug, degaussing coil(DEG) plug and the CRT 2nd anode button fromthe board.3. Remove the L-Board from the CRT socket andunplug the black wires (CRT dag ground) L11 &L12.4. Lift the Main Chassis (A-Board) and all mountedboards completely out with the CRT Board attached.CRT Replacement1. Perform Disassembly for CRT Replacementprocedure.2. Insure that the CRT H.V. Anode button isdischarged before handling the CRT. Read theSafety Precautions (see page 2) on handling thepicture tube.3. Remove the components from the CRT neck andplace the cabinet face down on a soft pad.4. Note the original order for the CRT mountinghardware as they are remove from the CRTmounting brackets at each corner of the CRT.5. Remove the CRT with the degaussing coil and thedag ground braid attached.Press tabrelease cablesleftward to Pull cablesupwardsPull cable upwardsInsert wireNote: After servicing the receiver, rememberto dress the cables, as shown above.