Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | KV25XBR | SLOW TUNING | Set was slow to tune on antenna and CATV. Tuning would cycleas if searching for 4 or 5 times before locking on. Found loss of H syncto IC103. Jumpers were omitted from PCB during production. | ||
Sony | D7S | DISC MOTOR WOULD NOT TURN | Disc motor would not turn. I found by removing drive belt, the motor would spin OK. | ||
Sony | SL10 | WOW AND FLUTTER IN SOUND, PICTURE OK | Wow and flutter, picture OK. Removed the tension assy andlightly sanded the supply reel assy. Note: This is the second unit. Didthe same thing to a SL-25, see FPR. H0402. | ||
Sony | XR740 | MISSING P/N | Part number and ref number missing: XR-740/747R/780/787R. -HQ COMMENTS: Item 429 should read reel retainer. Item 431 should readreel assembly. We will issue S/B. | ||
Sony | SLHF500 | MISSING P/N'S ON PAGE 120 OF S/M (CHASSIS ASSY 1) | I need the parts located directly below Ref No 184 and No 191.Please inform part numbers. -HQ COMMENTS: Tokyo informed me these parts are not available. I didhowever locate these parts from a scrap unit in Mahwah SSC. I will shipthese parts to you tod | ||
Sony | FD40A | TRAPEZOID EFFECT ON SCREEN, REPLACED Q806 | Set came in with Q602, D603 defective. Replaced parts turnset on and 17V line was being load down to 8V causing Q602 to overheat.In process of troubleshooting found waveform at junction of R871, 872distorted. Checked collector of Q805 also distorted. | ||
Sony | ACP80UC | UNIT GENERATES INTERFERENCE ON TV | AC adaptor generates interference on TV sets when located ontop of set or near antenna. Causes arcing on VHF chan 13 and herringboneon UHF chan 20 and 26. Adding copper foil shield increased interference.Three other units have same problem. -HQ COMMEN | ||
Sony | CCDM8U | BATTERY WILL NOT EJECT FROM COMPARTMENT | Battery will not eject from unit due to small plastic Tshaped insert located inside compartment. Apparently part is to keepbattery from rattling in compartment. | ||
Sony | SL2305 | NO PB COLOR | There was no PB color. We found that there was no signalbeing input at IC3/P5. The signal was being lost at L6 which checkedgood with an ohmmeter. However, replacement resolved the problem. | ||
Sony | KV25XBR | NO COLOR THE FIRST TWO MINUTES | Color only incorrect for the first two minutes set is poweredon. Monitor Pin 14 was high then drops to level selected after about twominutes. Every other function OK, also all level functions OK. | ||
Sony | CCDV8AFU | DISTORTED PICTURE | Dealer complained that unit had bad heads. It did indeed looklike a head was defective. Head check showed head to be normal. | ||
Sony | CFM100 | NO AUDIO OUTPUT | No output, no operation light, transport operations normal.Output IC101 (LA4550) runs extremely hot to touch. | ||
Sony | SL2700 | UNIT WILL NOT POWER OFF | Unit would not power off. After much troubleshooting foundIC8, Pin 4, always low. All inputs normal. | ||
Sony | TCFX705 | NO TRANSPORT | No transport functions, ie, PB, R/W, or FF. Servicer hadreplaced IC501, 502, 507. Inspection revealed signals going into IC502,but not output functions. | ||
Sony | SLHFR60 | SHUT DOWN DURING PB OF A BLANK TAPE OR TAPE WITH DROPOUTS | Syscon Bd (-15) contains JW-193, connecting Pin 24 of IC401(ROT SENS) to Pin 6 of IC301 (NOISE DET). Pin 6 of IC301 goes high duringPB of a blank tape or dropout portion, shutting down the unit via Pin 24of IC401. |