Dicas Reparação
Modelo - Chassis CFD440
Pesquisa: CFD440 Enviar Dica Resolvida
Resultados 21
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| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Sony | CFD440 | NOISE IN CD AUDIO - REPLACE S302, P/N 1-572-914-11 | Intermittent popping noise from right channel, mainly in cdmode. S302 introducing undesirable signals into cd loop. Could be thatS302 was actually fusing several connections together, acting as aresistor from one mode to another. | ||
| Sony | CFD440 | NO OPER/BATT LED AND NO SOUND - REPLACE Q306, P/N 872911976 | No operation /batt led and no sound, cd works . | ||
| Sony | CFD440 | UNIT DEAD - REPLACE MOTOR M601 AND FUSE F901 | Unit had no power | ||
| Sony | CFD440 | NO SPIN CD - REPLACE D301, P/N 8-719-109-97 | CD did not spin. Checked R310 and Q305. They were ok. Foundout that Q305 was not switching on because of the absence of 6.8v at thebase of Q305. Checked D301 and found it to be shorted. | ||
| Sony | CFD440 | DISTORTED AUDIO R. SPEAKER-CHECK FOR SHORT(IC303/PINS12&13) | Units have distorted audio right speaker only. Checked audioon headphones, it was ok. While checking voltages and audio signal aroundIC303 power amp, two pins 12 and 13 on IC303 were touching (shorted)together. | ||
| Sony | CFD440 | NO OPR/BATT LED AND NO AUDIO - REPLACE Q307, P/N 872911978 | Unit had power, but no audio and opr/batt (operation/battery)LED will not turn on. Checked voltage drop across D305 and no voltage wasfound. Check Q306 and Q307: both were off. Checked Q307 and found that itsbase to collector junction was open. Checked | ||
| Sony | CFD440 | LOOSE AC JACK - USE SCREW, P/N 3-384-192-01 TO HOLD AC JACK. | Units have been found to have loose AC jack. The reason isthat the screw to hold the AC jack in place is too small. Plugging in ACcord and removing it a few times causes the jack to slip out of thesupporting screw's hold, becoming loose. This is a | ||
| Sony | CFD440 | OPR/BATT INDICATOR STAYS ON ALL THE TIME - REALIGN S601 | Leaf switch (S601) on the tape deck is shorted, causing thedeck motor to activate all the time. | ||
| Sony | CFD440 | CD NO PLAY SLED JAMS | CD sled jams because debris (usually pieces of #216 motorboard) lodge between M701 gear and intermediate (black color) gear underthe plastic shield. 3% of CD repairs. | ||
| Sony | CFD440 | NO VOLUME CONTROL/NO RECORD/NO PICKUP CD - REPLACE R312 | Units have no volume control, no record, and no pickup.turning volume control up or down did not have any effect. I checkedIC301 pins 16 and 19, 5 volts VCC was not present. I checked Q308regulator for proper voltages. Q308 was found to be off, due to | ||
| Sony | CFD440 | PART NUMBERS FOR OPTICAL PICKUP HARNESS | The service manual does not list the part number for theharness from the optical pickup. Are these the same ones listed inservice bulletin #AUD0174R1? The CFD440 is not itemized on that bulletin. -HQ COMMENTS: Yes. It does have the same harness. 1946 | ||
| Sony | CFD440 | VOLUME REMAINS AT MAXIMUM - RV305 (VOLUME CONTROL) OPENS | RV305 (volume control) pot opens and volume remains atmaximum. | ||
| Sony | CFD440 | PARTS (RV304, RV305) LISTED WRONG IN SERVICE MANUAL | RV305 is actually the balance control and RV304 is actuallythe volume control.This FPR also pertains to Ref # RV304 and part no. 124164311, Res. VarCarbon 50K Vol. -HQ COMMENTS: Thanks for the info. | ||
| Sony | CFD440 | WRONG POWER CORD | Part #1-557-287-11 for CFD-440 power cord, as listed inservice manual, is for a non-polarized detachable cord. A polarizeddetachable cord is actually used. #1-558-834-11 seems to work. It ispolarized on both ends and detachable. -HQ COMMENTS: Please | ||
| Sony | CFD440 | NO BATTERY POWER - REMOVE SOLDER BRIDGE ON BATTERY BOARD. | A solder bridge between the red and black wires on thebattery board was found. This caused no battery power and also melted thebattery spring, at the opposite end of the battery compartment, into therear cabinet. The bridge looks to occur during manuf |