| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CCDF30 | SHUTDOWN AND CONTROL LOCKUP IN REW AND FFWD SCAN | When using REW or FFWD scan in play mode, unit would stoprunning and not allow any functions to operate unless power was removedand reset. Traced to IC-191 on FC-18 no 5 volts out to key scan. | ||
| Sony | CDXA10 | NOISE AFTER PERFORMING UPGRADE | Servicer performed upgrade as per service bulletin No. 135.He now reports that unit is noisier. Any other feedback on this? -HQ COMMENTS: We have not had any negative feedback. Is it possible hedid something wrong? | ||
| Sony | EDV9500 | POOR PIX IN ED MODE | Poor picture recorded in ED mode with metal tape. Recordingslooked fine when recorded in normal mode. Unit was previously at twoother servicers. Suspected bad heads but unit had only 80 hours of use.Record current adjustment was checked and verified. | ||
| Sony | CDPC7ESD | UNIT WOULD NOT PLAY DISC | Unit would read toc and keep on running but would not play thedisc. The sled was not moving. In trying to repair the unit, I foundsevere errors in voltage polarities in the schematic. The 9V line and the+5 volt line are mis-labled at Q-911 and Q-921. | ||
| Sony | ICFC2W | CLOCK GAINS TIME | (Exchanged unit) customer complains that unit gains 5-6 min./wk. Manual instructs user to release M and sleep button when desired runtime appears for sleep function. If customer releases buttons at thesame time, unit will gain 1 minute each time sleep | ||
| Sony | FD240 | BLACK BATTERY LID PART NUMBER | The servicer orders the above part number and receives:3-342-785-11. This is a gray lid. We need a black one. Could you pleaseforward the correct number? -HQ COMMENTS: 3-342-785-01 has registered separate from 3-342-785-11.This problem might be cause | ||
| Sony | CCDF30 | LITHIUM BATTERIES DRAIN TOO FAST | Q-203 in the digital titler circuit intermittently shortscausing the resistance across the lithium battery to drop. This causesthe battery to drain too quickly. | ||
| Sony | KV2648R | HORIZONTAL PULLING, REPLACED R606 AND R607 | Horizontal pulling, accompanied by ticking noise present whenoperating unit above 110 volts A.C. | ||
| Sony | KV1975R | VERTICAL INSTABILITY, SEE SB CTV0236 | CX20082 is replaced by CX20192, part number 8-752-019-20 percomputer and microfiche. Vertical instability develops when installingthe recommended replacement. In addition, service bulletin 236 indicatesthese ICs are not interchangeable. | ||
| Sony | EVA300U | UNIT ENTERS SHUTDOWN MODE | When play button is pressed, unit enters shutdown mode. Inoticed that the pinch roller was not engaging the capstan shaft. Inspec-tion revealed that the pinch press lever was jammed. | ||
| Sony | CDPC500 | TRANSIT KEY | Need part number for new style transit key. -HQ COMMENTS: The part number for the transit key is 4-930-510-01. | ||
| Sony | MDP200 | 3.5 INCH DISC SPUTTERING | Unit does not play 3.5 inch disc instead there is a sputteringsound from it. | ||
| Sony | KV1395R | NO BRIGHTNESS/RETRACE LINES, REPLACED R527 | The unit displayed retrace lines and had no brightness or nocontrol of brightness. Found R-527 was open. This is the 135V feed tothe ABL circuit. | ||
| Sony | STRVX350 | NO FM RECEPTION | No FM reception. Inspection revealed no forward bias onQ-102. R-106 was open. Schematic shows this resistor at 820 ohms. WhenI installed an 820 ohm resistor in the circuit, the collector voltage ofQ-102 dropped to 5-4VDC. This resistor should be lab | ||
| Sony | KV2775R | INTERMITTENT BLANKING, REPLACE R-376 ON "A" BOARD | The unit exhibited intermittent blanking. All other functionsworked ok. The problem was an intermittent R-376. Replacement resolvedthe problem. -HQ COMMENTS: R-376 is located off B/Q307 (blanking). |