Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | SPP95 | TRANSMIT FREQUENCY OFFSET FAILURE | While testing handset with S4015 stabilock, unit failedspecifications for Xmit frequency offset. Crystal was oscillating butwill either be off frequency, or low amplitude. Symptoms include no talkand range distortion. | ||
Sony | SPP95 | HANDSET MICROPHONE LOW/LOW AUDIO LINE | Unit's handset transmitted low audio to base. FoundIC-501/pin 30 to be 4 V, which did not allow the incoming signal to beamplified. | ||
Sony | SPP95 | NO TALK- ERROR BEEPS - REPLACE Q-551, P/N 8-729-821-27 | When the talk button is pressed on the handset, the unit wouldnot scan through the channel LED's but LED 1 and 2 would blink along withfive error beeps. The handset was not transmitting while in test. Ifound Q551 to be open which is the TX switch to su | ||
Sony | SPP95 | NO HANDSET TRANSMIT - REPLACE D-551, P/N 8-719-949-46 | The handset would not transmit. I checked IC651 (PLL) and itwas operating properly. Next, I checked pin 1 of IC551 and found nofrequency. Also, D551 was open. | ||
Sony | SPP95 | NO POWER LED - REFLOW R-260 | No power LED, the unit worked fine, but the power LED did notlight. I found R260 cold solered. | ||
Sony | SPP95 | NO HANDSET TRANSMIT - L553 POPPED THROUGH BOARD | Handset was not putting out any transmit signal. L553 waspopped through the board and did not allow for oscillation. | ||
Sony | SPP95 | NO BASE TRANSMIT - REPLACE IC-151, P/N 8-759-824-20 | I found the base unable to transmit. I checked the Q253collector and found 1v. I lifted pin 17 of IC151 (VCC) and checked Q253again and found voltage to return to 3v. | ||
Sony | SPP95 | NO HANDSET TRANSMIT OR TX FREQUENCY HIGH OR LOW - IC-651 | I found the handset unable to transmit. I checked thevoltage at pin 4 of IC652 and found 1v. Then I lifted pin 17 of IC651(VCC) and checked pin 4 of IC652 again and found voltage returned to 3v.Also in other units, I found IC-651 defective, which preven | ||
Sony | SPP95 | HANDSET TRANSMIT FREQUENCY HIGH OR LOW - REPLACE X-651 | X651 is defective preventing the adjustment of the handsettransmit frequency. The TX frequency can be either high or low. I haveseen many of both circumstances. | ||
Sony | SPP95 | NO VOLUME CONTROL | Found unit not able to change the volume of the handsetspeaker. Checked pin 3 of IC-701 (Volume Pin) was always low. CheckedR-720 and found it missing. R-720 supplies the high for IC-701/pin 3. | ||
Sony | SPP95 | NO AUDIO | No audio being transmitted from handset. |