Dicas Reparação
Modelo - Chassis D4
Pesquisa: D4 Enviar Dica Resolvida
Resultados 434
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | D4 | REPLACEMENT OPTICAL BLOCKS | Replacement blocks coming through with pin 3 and 4 solderedtogether on 12 pin flex connector. This is just a little drop of solderwhich can easily be overlooked and cause the block not to work wheninstalled. This also is true on other models. | ||
| Sony | D4 | PART NUMBER FOR CARRYING CASE | The part number listed in the service manual is for the D-4,not D-T4. The one for the D-T4 has a clear window in the top so the tunerscale can be seen. It also has a cut-out for the tuning knob. What isthe correct part number? -HQ COMMENTS: To Tokyo: | ||
| Sony | D4 | PROCEDURE TO ELIMINATE GEAR CHATTERING | Gears will jump or chatter at about the fifth or sixth track. | ||
| Sony | D4 | PLL FREE RUN FREQUENCY IS NOT CORRECT | Tested eight units with the following PLL free run frequen-cies:4.350 MHz, 4.342MHz, 4.342MHz, 4.349MHz, 4.355MHz, 4.346MHz, 4.355MHz,4.367MHz. In these units there is intermittent servo lock or noise inaudio. What should PLL frequency be? -HQ COMMENT | ||
| Sony | FD40A | AC-40A AC ADAPTOR IS NO LONGER AVAILABLE, USE AC-D468 | The AC adaptor, AC-40A, is no longer available. This adaptorwas 6V at 800mA. What is a suitable replacement AC adaptor? -HQ COMMENTS: Please use the AC-D468 as a replacement. The AC-D468 isswitchable 6, 9, 12V at up to 800mA. | ||
| Sony | D4 | NO LASER IN NEW OPTICAL DEVICE | There is no laser in a new optical pick-up device. Pin 9 andpin 8 are shorted in factory. All new FOP (optical pick-up devices) havethe same problem. | ||
| Sony | D4 | INTERMITTENT NO POWER | Unit does not turn on - but turns on when upper lid is pusheddown. The open leaf switch (S-801) does not contact well because the openleaf switch is bent or the pushing lever in the upper lid is worn out. | ||
| Sony | D4 | DEFECTIVE OPTICAL BLOCKS | Had to try four pick-ups before I got one that would light up. -HQ COMMENTS: The optical block for D-4 has shorting pads to protect thelaser against static charge. The solder bridge on the flex connector mustbe removed to allow the laser to fire. | ||
| Sony | D4 | REFERENCE NUMBER IS INCORRECTLY LISTED | The part number for reference 904 is not listed in theservice manual. -HQ COMMENTS: Reference 904 should be listed as reference 903. Refer-ence 903 should be 902. Thank you for bringing this to our attention.A Service Bulletin has been written with th | ||
| Sony | D4 | NO FOCUS ON OR INTRMITTENT NO FOCUS ON | Replaced the UPF. -HQ COMMENTS: Please send me the defective pick up if it is still onhand. If not, forward one to me the next time you have this problem. Iwill forward your report to Tokyo. | ||
| Sony | D4 | PLL FREQUENCY RUN | A unit does not lock servo intermittently or there is noise inaudio. PLL free run frequency is on 4.31Mhz by the specifications. Ireadjusted PLL free run frequency 4.28Mhz - it does work. I checked manyunits. Every unit is diffrent PLL free run frequ | ||
| Sony | D4 | INCORRECT VOLTAGES IN SERVICE MANUAL | The voltages around IC-401, Q-407 etc. in the power supplyappear incorrect. If they are incorrect, what should they be? -HQ COMMENTS: Pin 1 = 1.36V, 2 = .92, 3 = 1.74, 4 = 1.2, 5 = 5.72, 6 =0, 7 = 0, 8 = 9.76, 9 = 0, 10 = 3.57, 11 = 2.54, 12 = 1.28, 13 | ||
| Sony | CFD444 | FULCRUM USED TO REPAIR CD DOOR POPS OUT | The fulcrums on hand at our facility will not lodge itselfproperly in the unit, therefore, as soon as the door is opened, the fulc-rum pops out. | ||
| Sony | D4 | WILL NOT TRACK DISC PAST SECOND TRACK | Unit would start mistracking on track No. 2 (3:00 on display). | ||
| Sony | D4 | NO PART NUMBER FOR HEADPHONE PCB | Part number missing for H/P jack PCB. This commonly breaks.Part number on this small PCB is 1-625-769-11. Is this valid? If so,please stock KC as this problem is common. -HQ COMMENTS: We just received a part number for this PCB from Tokyo.The part nu |