Dicas Reparação SONY
Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | ICF2010 | CONSTANT STATE OF CPU LOCK | The unit is in a constant state of CPU LOCK, had adefective current source biasing FET in the first VCO circuit. Theoscillator was not affected by the erroneous output of IC-4 pin 7 (0-2volts in this case). 1V is normal, so pin 8 was keeping the CPU loc | ||
| Sony | CDXA30RF | UNIT DOES NOT RESET OR EJECT | Unit would not reset, no elevator motor or eject. | ||
| Sony | KPR46EX25 | VIDEO 3 HAS TV CHANNELS - NO AUDIO, U-5 CONNECTOR | This unit had TV channels coming thru on video 3 but no audio. | ||
| Sony | SLHF450 | CUTOUT/DISTORTION ON BETA HI-FI | In Beta Hi-Fi unit would distort as well as cutout. Tracedproblem to IC-001. Scoping pins 3 and 40 signal was clean. Looking atpins 6 and 37 audio signal was distorted. | ||
| Sony | EVT801 | UNIT CHEWS TAPE INTERMITTENTLY | Problem finally occured after three days. Tape was bunched upon the supply side of machine which is a little unusual since you wouldexpect it to be on the exit side (take up). | ||
| Sony | CCDTR4 | VIEWFINDER STAYS ON | In the Camera mode with the Standby switch in the offposition, the viewfinder remains on. | ||
| Sony | SLV585HF | HI-FI DROPOUT ON PRERECORDED TAPES | Servicing dealer in Arizona reported to area representativethat he has a unit that will drop out of the Hi-Fi mode on several pre-recorded tapes (Top Gun - sample). Some tapes can be played on other man-ufacturers' machines with no problem. | ||
| Sony | KV27TS20 | SQUEALING, L-511 | Set had intermittent high pitch squeal. Two yokes were re-placed the last having hot glue applied. Home tech found by moving L-511the squeal would come and go. Note: I have found out in four cases thatif their is a squeal after the yoke has been hot g | ||
| Sony | CDPC305 | TRAY DOES NOT STOP AT CENTER OF PICKUP | Tech in San Diego showed me that when you go to the next diskthe tray would stop early and then at times would jerk its way to centerof laser base assembly. The problem appears to be either a warped tray orcabinet assembly. Sometimes the problem is int | ||
| Sony | CDPC205 | TRAY DOES NOT STOP AT CENTER OF PICKUP | Tech in San Diego showed me that when you go to the next diskthe tray would stop early and then at times would jerk its way to centerof laser base assembly. The problem appears to be either a warped tray orcabinet assembly. Sometimes the problem is int | ||
| Sony | TCWR950 | DECK "A" CYCLES OFF AND ON | Deck A cycles off and on. Deck B is ok. | ||
| Sony | KP7220 | PICTURE NARROW BEFORE IT WENT OUT, REPLACED C541,F801,F601 | Inoperative set, F-801 and F-602 open 2 Ohms on +135 volt B+line to ground. Eliminated connectors G-17, G-5, G-6, G-7, G-14 and G-15.Still 2 Ohms to ground. Opened C-538, D-514, C-539 and checked D-515.Still 2 Ohms to ground. Opened C-541 and short wa | ||
| Sony | KP7220 | RED WIDTH WOULD EXPAND AND CONTRACT INTERMITTENTLY, D5306 | Red width would expand and contract intermittently. Knowingthat D-5306 controls the B+ voltage to the red convergence output circuitin the horizontal section, found B+ at D-5306 anode varying the circuit.All other circuits stable measured D-5306, found | ||
| Sony | KV2780R | "A" REPLACEMENT PCB NOT COMPATIBLE | Replacement PCB found with numerous errors. Has power but novideo, sound or micro operation. Sleep light will not turn off. Foundthese problems: A. IC-102 memory IC is not correct IC. B. R-104, JW-66,R-193, R-192, JW-107, JW-110 C-603, C-608, D-606, | ||
| Sony | KV27EXR10 | WHEN SET TURNED OFF, POWER SUPPLY STAYS ON, REPLACED RY-601 | Power supply would stay on and video/audio would blank out butno relay click when turned off. Q-601 relay drive transistor base andcollector. Voltages were switching correctly for power On and power Offfunctions. Unplugged TV and found relay RY-601 wi |