TV Repair: Common Faults and Solutions.
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Results: 87427
Results: 87427
Repair Guide: Common Issues and Fixes
| Brand | Model | Fault | Detailed Problem | Solution | By |
|---|---|---|---|---|---|
| SONY | KV27TS20 | Resistor r587, diode d518 no screen voltage | Resistor r587 was found opened, new resistor installed andburned within a few seconds. found diode d518 at fault, diode measuresgood with meter but is breaking down under voltage. | ||
| SONY | CCDM8U | Part number for pinch arm in ls cassette assembly | |||
| SONY | KV25VXR | No on-screen display | No on-screen display in any function. signals prevent at in-puts to ic-2001, but no outputs. vertical pulse on pin 18, ic-2001 was1 vpp and 1-5vdc. by removing ppc-2 plug, display was on the screen. isuspected d-2030 was causing the low pulse amplitu | ||
| SONY | KV1923 | Pin cushion distortion | Scc-204f-a chassis. picture was narrow, slight pin cushiondistortion and about 5 narrow dark vertical bars on left side of screen. | ||
| SONY | CCDV220 | Noisy playback | Playback video was noisy. | ||
| SONY | CCDV220 | Tape stuck in unit | The tape was stuck in the unit with the threading ring about1/4 of the way around. | ||
| SONY | CCDV220 | Picture-in viewfinder rolls | In camera mode the picture rolls in the viewfinder. also, 4-5colored vertical bars appear on monitor and pause does not function. | ||
| SONY | SL5800 | Sl-5800 rewind kit | Slow or no rewind. rewind kit a-6706-479-a already installedone year ago and unit returned for no rewind. | ||
| SONY | SL5600 | Sl-5600 rewind kit | Slow or no rewind. rewind kit a-6706-479-a already installedone year ago and unit returned for no rewind. | ||
| SONY | SL5400 | Sl-5400 rewind kit | Slow or no rewind. rewind kit a-6706-479-a already installedone year ago and unit returned for no rewind. | ||
| SONY | SLHF1000 | Unstable time display | Timer display not stable (pulsating) clock runs slows withunit turned on and runs fast with unit off. previous srevicer replacedic101 x 101 and x 103 (tm-84 board). after replacing the complete (tm-84board), the problem was still there. replaced q002, | ||
| SONY | STR4800 | Need part number | Need part number of d1 listed on page 18 of service manual. | ||
| SONY | SL300 | No channel (+, -) record, timer record operation | Key inputs for chan (+, -): rec, timer + rec, would not oper-ate. found voltage on key input ports of ic801 higher than b+ to upc.found voltage drop across d804 only .2 volts. | ||
| SONY | CCDV110 | No tape in unit - unit acted like tape was in | With no tape actually in unit, the unit take-up reel rotatedforward as if not enough tape on take-up reel to allow threading. didthis about 3 times and then entered emergency shutdown. | ||
| SONY | CCDV110 | Excessive noise on tape | |||
| SONY | CCDV8AFU | Part unable to fit | Replacement part will not fit - input cable too short.measures 2 1/2 inches should be about 4 inches (3p connector) stock fromkc. -hq comments: we are investigating and will advise. | ||
| SONY | ITA650 | Unit intermittently eats tapes, ogm and icm | A few units came in the service center with tape wound aroundthe flywheel, both ogm and/or icm. after removing tape, machine works ok.all machine torque seems ok. problem seems to be part number 117(chassis assembly, mechanical) where idler arm with ge | ||
| SONY | SPP80 | Phone does not ring | I have seen about 10 units with this resistor open. | ||
| SONY | CCDF30 | No capstan rotation | Unit had no capstan rotation pwm pulse wuld start to come fromic001 pin 6 then shut down. all voltages checked good around pwm drive. | ||
| SONY | CCDV8AFU | No camera function | No camera function. we found no 5v from dc to dc converter.this measured 100Ω to ground. further tests leveled c-709 to measure100Ω. |