Dicas Reparação
Modelo - Chassis KPR4620
Pesquisa: KPR4620 Enviar Dica Resolvida
Resultados 11
Pedir dica reparação
| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | KPR4620 | BREAKAGE OF BUTTONS, P/N FOR BUTTONS BELOW | I was told awhile back that a service bulletin would beissued on replacing the buttons part numbers 4-375-410-02 and4-375-445-03. Instead of the escutcheon which is on backorder (N LA 333).When will the service bulletin be issued? -HQ COMMENTS: No Serv | ||
| Sony | KPR4620 | POWER ON-OFF BUTTON BREAKAGE, SEE MOD BELOW | The complete bezel must be replaced when the power buttonhinge breaks off. This happens frequently and the list price is $93.11.There are 65 pieces now on Nat. backorder. Failure occurs from excessivebutton travel distance. | ||
| Sony | KPR4620 | NO DC VOLTAGES LISTED ON (C) MOUNTED BOARDS, VOLTAGES BELOW | Service manual does not show any voltages for CRT sockets.What should voltage be? a K b G1 - Grid c G2 - Screen d G4 - Focus -HQ COMMENTS: We are checking the voltages with our lab | ||
| Sony | KPR4620 | DUST ON SCREEN, REPLACED SCREEN | Dust on screen. | ||
| Sony | KPR4620 | UNIT SHUTS DOWN USING VCR FWD AND REVERSE SCAN, SEE BELOW | When this unit is connected to either an RCA V900 or aMitsubishi HS304 VCR, the unit will enter HV shutdown when either FWD scanon one unit or REV. scan on another is entered. Servicer noted that bothmachines do not use drum shift to lock drum in these | ||
| Sony | KPR4620 | SCREEN P/N REVERSED IN S/M, SEE SB 304 | S/M page 87 has the reference numbers for the lenses reversed.The diagram indicates that the fresnel lens is the outer lens and thelenticular lens is the inner lens. | ||
| Sony | KPR4620 | DARK LINE IN PICTURE, REPLACED C-5079 (E BOARD) | Black bar approx. 1/8 horiz. across center of screen. Some-times would be 2 or 3 bars. Troubleshooting 18V line it was noticed thathash appeared on 12V line after IC5005 12V ref. external supply hooked to12V and line and bar disappeared. Further check | ||
| Sony | KPR4620 | NO PICTURE, REPLACED D-17, L-8 (E BOARD), SEE SB #27 | Picture is muted, HV is present and sleep light comes on thengoes off. L8 opens up, D17 defective. | ||
| Sony | KPR4620 | INVERTED IMAGE, SEE SERVICE BULLETIN # 302 | Customer complained about an inverted image on bottom lefthand side. This is only noticed when the room is very dark and thepicture has a dark screen. | ||
| Sony | KPR4620 | UPWARD BENDING - VERTICALLY UP TO 2 INCHES | Picture distortion-bending on top left edge of picture (verti-cally up to 2). Produced only when playing back prerecorded tapes on RCA(2 head) VCR deck. Also the same identical problem is produced when usingSony EVS-700U 8 mm video deck, but in the slo | ||
| Sony | KPR4620 | HUM IN AUDIO, SEE SB # 284 | Problem reported from dealer. Hum in audio when no volume.Two units on floor. Volume up all OK. -HQ COMMENTS: To eliminate buzz, add two 18 kohm 1/4W resistors(1-247-861-00) to the circuit as shown in Service Bulletin 284.One 18K between R-193 and C-1 |