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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | XR7180 | NEED PART NUMBER FOR HEAD CABLE | Need part number for head cable with connector. -HQ COMMENTS: The playback head flexible cable is supplied as part ofthe head it is not available separately. Please order part number1-543-506-11 to obtain the head and flex cable. | ||
| Sony | KV2900 | UNIT WON'T TURN ON AT 120 VAC | Unit came with no function. If you used ac variac and turnedto 140 VAC, unit will work ok. Checked all voltages at Q-601 and IC-601when AC is at 120 VAC. They are half of value. When its already(140 VAC), unit turns on. Bringing it back to 120 VAC u | ||
| Sony | TCH3600 | UNIT CONTAINS FUSE LINKS ON POWER BD NOT REFERENCED IN S/M | Unit has (2) 2.5A fuse links connected in series with thecollector of Q-501 and the bridge rectifier and in series with thecollector of Q-502 and the bridge rectifier. The service manual does notshow any reference to these fuses on page 27. -COMMENTS: | ||
| Sony | CFSW400 | MOTOR IN TAPE RECORDER SERVICE BULLETIN 234R RUNS TOO FAST | The replacement motor shown in tape recorder service bulletin#234R runs too fast. Why does this bulletin recommend using motor typeMMA-6B9RWBT, when the original motor type DNE-7700A is still availableunder its original part number (A-3133-221-A)? -HQ | ||
| Sony | CDX7520 | WILL NOT LOAD CD | When power was applied to unit, CD mechanism would move toload position and would not return to unloaded position. | ||
| Sony | FD2A | INCORRECT IC CASE STYLE, IC201 | The original part listed above is substituted to 8-759-602-XX.This substitute part is a suface mount device. The orginal part is a PCMount Device. The leads are too short to mount on the printed circuitboard. Original part is 8-759-602-99. Replacemen | ||
| Sony | WMFX43 | TUNER OPERATION IS TEMPERATURE SENSITIVE | Unit worked perfectly at room temperature but tuner would fadeout below 65 degrees Fahrenheit. Q-53 regulator voltage dropped to 0.8Vwhen unit was cool and up to 2.4 volts when unit was warmed up. Voltagewas unaffected by RV-53 (2.1V adjustment). Foun | ||
| Sony | XR4257 | STATIC AND LOW VOLUME ON RIGHT CHANNEL WHEN USING TAPE DECK | Unit has a lot of static and low volume on right channel. Theleft channel is ok. This problem was only on the tape deck tuner wasok on both channels. | ||
| Sony | XR4147 | EXCESSIVE WOW/FLUTTER | Unit has excessive Wow/Flutter. The technician replaced thebelt, arm assembly, spindle assembly and motor with no improvement. | ||
| Sony | STRAV920 | STATIC ON RIGHT CHANNEL | Unit makes a popping noise when switching functions and a lotof static on right channel. | ||
| Sony | STRGX9ES | NO AM OR FM | Unit has no AM or FM and other functions are ok. Aftertroubleshooting the unit, we found R-652 and R-653 on EQ board open. Wealso found C-115 on tuner board was shorted. | ||
| Sony | STRAV1070X | ALL LEDS LIGHT UP AT THE SAME TIME | All LEDs light up at the same time and other functions arenormal. After troubleshooting unit, we found there was no data or clockon pin 4-8 of IC-103. Following the line to IC-202 system control therewas no data or clock out on pins 41-40. | ||
| Sony | HSTV102 | REPLACEMENT PART FOR M-101 IS INCORRECT | Unit does not Play, Rewind or Fast Forward. Technician order-ed the motor part number X-3390-803-1. Number on the original motor wasSHL2L-509930F. New motor had a different number SHL2L-50143F. This newmotor not only has a different number but also h | ||
| Sony | STRVX6 | DC OUT ON LEFT CHANNEL INTERMITTENTLY | Unit pushes speaker cone out intermittently and it shuts down.After the technician checked the unit, he found 1V DC at the speaker ter-minal on L/C and replaced almost all the transistors with negative re-sults. I found if I open the line between the pr | ||
| Sony | TCK501R | NO FAST FORWARD/FAST REVERSE | Unit does not Fast Forward/Fast Reverse. After the techniciantroubleshot the unit, he replaced IC-501, Q569, Q563, Q561, Q566, Q568,AMS solenoid, D1004, D1002 and C1005 with no solution. I recheckedeverything and found if I connected the volt meter acr |