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1、SERVICE MANUALCOPYRIGHT 2003 VICTOR COMPANY OF JAPAN, LIMITEDNo.MB1272003/12HOME CINEMA CONTROL CENTERMB127200312RX-ES9SLTABLE OF CONTENTS1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-32
2、 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-53 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-
3、64 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-125 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4、. . . . 1-13Area SuffixB - U.K.E - Continental EuropeEN - Northern Europe1-2 (No.MB127)SPECIFICATIONDesigns furthermore the manufacturer cannotaccept responsibility for personal injury or property damage resulting therefrom.(3) Essential safety critical components are identified by ( ) on the Parts
5、List and by shading on the schematics, and must neverbe replaced by parts other than those listed in the manual. Please note however that many electrical and mechanical parts inthe product have special safety related characteristics. These characteristics are often not evident from visual inspection
6、. Partsother than specified by the manufacturer may not have the same safety characteristics as the recommended replacement partsshown in the Parts List of the Service Manual and may create shock, fire, or other hazards.(4) The leads in the products are routed and dressed with ties, clamps, tubings,
7、 barriers and the like to be separated from live parts,high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service isrequired, the original lead routing and dress should be observed, and it should be confirmed that they have been returne
8、d tonormal, after re-assembling.1.5.1 Warning(1) Service should be performed by qualified personnel only.(2) This equipment has been designed and manufactured to meet international safety standards.(3) It is the legal responsibility of the repairer to ensure that these safety standards are maintaine
9、d.(4) Repairs must be made in accordance with the relevant safety standards.(5) It is essential that safety critical components are replaced by approved parts.(6) If mains voltage selector is provided, check setting for local voltage.Burrs formed during molding may be left over on some parts of the
10、chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.(No.MB127)1-5SECTION 2SPECIFIC SERVICE INSTRUCTIONSThis service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.1-6 (No.MB127)SECTION 3DISASSEMBLY3.1 Main body section3.1.1 Removing the top cover(S
11、ee Figs.1 and 2)(1) From the back side of the main body, remove the threescrews A attaching the top cover. (See Fig.1)(2) From the both sides of the main body, remove the fourscrews B attaching the top cover. (See Fig.1)(3) Remove the top cover by moving up the back part of the topcover and release
12、the six joints a using a longer driver fromthe inside. (See Fig.2.)Note:Do not damage any part and board inside the main body whenreleasing the joints a using a longer driver.Fig.13.1.2 Removing the front panel assembly(See Figs.2 to 4.) Prior to perform the following procedures, remove the top cov-
13、er.(1) From the top side of the main body, cut the tie bands anddisconnect the wire from the connector CN451 on the mainboard. (See Fig.2.)(2) From the bottom side of the main body, remove the fourscrews C attaching the front panel assembly. (See Fig.3.)(3) From the both sides of the main body, rele
14、ase the joints band remove the front panel assembly in the direction of thearrow. (See Fig.4.)(4) From the top side of the main body, remove the screw D at-taching the earth wire on the DC power board. (See Fig.2.)References: After attaching the front panel assembly, bundling the wiresusing the new
15、tie bands. When attaching the screw D, attach the earth wire with it.Fig.3Fig.2Fig.4ABx2 Bx2Top coverCFront panel assemblyCN451Main boardFront panel assemblyJoints aTie bandsEarth wireDDC powerboardFront panel assemblyJoint b(No.MB127)1-73.1.3 Removing the tuner(See Figs.5 and 6.) Prior to perform t
16、he following procedures, remove the top cov-er.(1) From the top side of the main body, disconnect the cardwire from the connector CN1 on the tuner. (See Fig.5.)(2) From the back side of the main body, remove the twoscrews E attaching the tuner to the rear panel. (See Fig.6.)Fig.5Fig.63.1.4 Removing
17、the rear panel(See Fig.7) Prior to perform the following procedures, remove the top cover.(1) From the back side of the main body, remove strain relieffrom the rear panel in the direction of the arrow.(2) Remove the twenty screws F attaching the rear panel.Fig.73.1.5 Removing the digital input board
18、(See Fig.8) Prior to perform the following procedures, remove the top cov-er, tuner and rear panel.Reference: Remove the tuner as required.(1) From the top side of the main body, remove the connectorCN521 on the digital input board in an upward direction.(2) From the reverse side of the digital inpu
19、t board, disconnectthe card wire from the connector CN522 on the digital inputboard.Fig.8Card wireTunerCN1E Rear panelFFRear panelStrain reliefDigital input boardCN522CN5211-8 (No.MB127)3.1.6 Removing the digital output board(See Fig.9) Prior to perform the following procedures, remove the top cov-e
20、r, tuner, rear panel and digital input board.Reference: Remove the tuner as required.(1) Disconnect the card wires from the connectors CN513 andCN514 on the digital output board.(2) Remove the screw G attaching the digital output board.Fig.93.1.7 Removing the AC power supply board(See Fig.10) Prior
21、to perform the following procedures, remove the top cov-er and tuner.(1) From the top side of the main body, disconnect the powercord from the connector CN203 on the AC power supplyboard and remove it from the rear panel.(2) Cut the tie bands and disconnect the wire from the connec-tor CN218 on the
22、DC power board.(3) Remove the three screws H attaching the AC power supplyboard.(4) Disconnect the wire from the connector CN202 on the ACpower supply board and remove the wire holders from thereverse side of the AC power supply board.Reference: When attaching the three screws H, attach the wire hol
23、derwith it.Fig.10Card wiresDigital output boardCN513CN514GCN202CN203DC power boardPower cordCN218AC power supply boardWire holderRear panel Tie bandsHHWireholderWireholder(No.MB127)1-93.1.8 2.1.8 Removing the power transformer(See Fig.11) Prior to perform the following procedures, remove the top cov
24、-er and front panel assembly.(1) From the top side of main body, disconnect the wire fromthe connector CN202 on the AC power supply board.(2) Remove the strain relief holding the power cord and re-move the three screws H attaching the AC power supplyboard.(3) Lift the AC power supply board and remov
25、e the wire hold-ers from the reverse side of the AC power board.(4) Cut the tie band.(5) Disconnect the wire from the connector CN201 on the DCpower board.(6) Disconnect the wire from the connector CN702 on the rec-tifier board.(7) Remove the four screws J attaching the power transform-er.Reference:
26、 After attaching the front panel assembly, bundling the wiresusing the new tie bands.Fig.113.1.9 Removing the fan motor(See Figs.12 and 13) Prior to perform the following procedures, remove the top cov-er.(1) From the top side of the main body, cut the tie bands anddisconnect the wire from the conne
27、ctor CN207 on the DCpower board. (See Fig.12.)(2) Remove the screw K and screw K attaching the fan as-sembly, then remove the fan assembly. (See Fig.12.)(3) Remove the two screws L attaching the fan motor to the fanbracket. (See Fig.13.)Reference: After attaching the screw K, attach the wire holder
28、with it.Fig.12Fig.13CN202DC power boardPower cordWire holderRectifier boardAC Power supply boardStrain reliefCN201 CN702Power transformerTie bandHJJFan assemblyDC power boardCN207Tie bandsKKWire holderLFan bracketFan moter 1-10 (No.MB127)3.1.10 Removing the DC power board(See Fig.14) Prior to perfor
29、m the following procedures, remove the top cov-er, front panel assembly, rear panel and digital input board.(1) From the top side of the main body, disconnect the wiresfrom the connectors (CN201, CN206, CN207, CN211,CN218, CN510, CN520 and CN711) on the DC powerboard.(2) Disconnect the parallel wire
30、 from the connector CN712 onthe amp. board.(3) Remove the two screws M attaching the DC power board.Fig.143.1.11 Removing the main board(See Fig.15) Prior to perform the following procedures, remove the top cov-er, front panel assembly, rear panel, digital input board, digitaloutput board, AC power
31、supply board and DC power board.(1) From the top side of the main body, disconnect the wiresfrom the connector CN525 on the main board.(2) Disconnect the wires from the connectors CN516 andCN519 on the amp board.(3) Remove the two screws N attaching the main board.Reference: When attaching the two s
32、crews N, attach the wire holderwith it.3.1.12 Removing the amp. board(See Fig.15) Prior to perform the following procedures, remove the top cov-er, front panel assembly, rear panel, digital input board, digitaloutput board, AC power supply board and DC power board.(1) From the top side of the main b
33、ody, disconnect the wiresfrom the connectors CN516 and CN519 on the amp. board.(2) Disconnect the wire from the connector CN525 on the mainboard.(3) Disconnect the wire from the connector CN703 on the rec-tifier board.(4) Remove the four screws P attaching the amp. board.Fig.15CN520CN510CN210CN711CN712CN211CN207CN206Amp. boardCN218MMDC power boardPPNPMain boardCN516CN519CN703CN525Wire holderAmp. boardRectifier boardP
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