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Modelo - Chassis
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | XR7150 | CHASSIS RECEIVED FROM NPC DIFFERENT FROM ORIGINAL | New chassis received from NPC is not compatible withcustomer's unit because the bushing that the power arm (ref. 206) normallymounts to is larger than the hole in the power arm. The original partnumber for the chassis is being replaced by NPC with part | ||
| Sony | MDP455 | INOPERATIVE UNIT : REPAIR CRACK ON PS701 BD. | Inoperative unit. P/C board was cracked due to mounting screwat IC102 causing a loss of ever 5v to CN105. | ||
| Sony | SLV750HF | DISTORTION ON PLAYBACK: RESOLDER IC203 PINS --MA144 BD. | The video looks distorted as if poor tracking or dirty videoheads. Tapping on MA144 board restored the picture to normal. Tracedthe problem to IC203. Pins on IC203 were not properly soldered. | ||
| Sony | CCDTR101 | COLORED SNOW IN E TO E CAMERA/REPLACE DC-DC CONVERTER | The unit had colored video (snow) in camera mode. | ||
| Sony | CCDFX410 | NO COLOR AFTER RECORD PB OK, E TO E COLOR OK/REPLACE L308 | On the VA71 board, I scoped IC301 pin 40 and found the propersignal (chroma). I checked Q308 base and there was a weak signal. Ifound no signal on one side of L308. | ||
| Sony | CDPC235 | TRAY OPENS AND CLOSES BY ITSELF (ALIGN CAM MECHANISMS) | The tray opens and closes by itself, the FOP mechanism islocked in the up position. | ||
| Sony | CDPC401 | INOPERATIVE (REPLACE D401, P/N 8-719-110-13) | The unit was completely inoperative. All power supplies andcrystal frequencies were good. I found voltage on pin 57 IC401 was +5volts instead of -3.8 volts. | ||
| Sony | CDXA15 | INOPERATIVE (REPAIR OPEN TRACE NEAR CNP501 ON JACK BOARD) | The unit is inoperative. I found an open ground trace on jackMCB. The open trace was easily visible and was found betwee CNP501 pinsB7 and B8 and the chassis ground strap. | ||
| Sony | D34 | UNIT INOPERATIVE - OPEN TRACE (IC801/PIN 30 TO IC504/PIN 24) | The unit does not power up. I found that IC504 and IC801were getting B+. IC801/pin 30 (PCONT) must send a low to IC504/pin 24(PC). This enables IC504/pins 16 (VD) and 18 (VREF), and the rest of thepower supply circuit would power up and turn the unit on | ||
| Sony | XR4147 | CAPSTAN MOTOR SPEED IS NOT ADJUSTABLE (USE PN X-3364-496-1) | The replacement motor runs too fast. There is no speedadjustment available. -HQ COMMENTS: Tokyo informed us (TX-USA93080) that this motor was madewith an internal mechanical governor to control the speed, which isadjusted at the factory when the motor | ||
| Sony | STRAV570X | FOLLOW UP ON GROUND PROBLEM ON DISPLAY BOARD | After close scrutiny of the display board and schematic, Ifound a discrepency. The schematic shows constant ground plane on displayboard, however, the board layout shows isolated ground plane for CPUIC301. Why is this so? After checking the board of th | ||
| Sony | CCDTR81 | YELLOW AND BLUE WIRES FROM VC-87 | The original camera VC-87 PCB did not have yellow and bluewires. If the yellow and blue wires are not attached, the focus motordoes not work. Where do the yellow and blue wires go after they leave theVC-87 PCB? -HQ COMMENTS: Connect one blue wire from | ||
| Sony | MPKTR | INCORRECT PART NUMBER FOR PEDESTAL BASE/SEE SB CSV-3 #310. | The pedestal base number 121 shows part number 1-465-526-11.As pointed out in FPR number O0880, it should be A-6768-368-A. A servicebulletin should be issued. A servicer ordered the part in the manual, andwas shipped the incorrect part after an eight m | ||
| Sony | ITA505 | WEAK AUDIO IN ICM AND OGM THROUGH THE SPEAKERPHONE | The audio out of the speakerphone is weak for ICM and OGM. | ||
| Sony | SPPA20 | CERTAIN NUMBERS DO NOT REGISTER IN TOUCH TONE MODE ONLY | The unit would dial fine in pulse mode but in tone mode,certain rows of buttons do not register on phone tester. I have seen twoother units like this. |