Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | SPP57 | NO DIAL TONE - REPLACE X603, P/N 1-579-805-11 | Unit would not grab a line. | ||
Sony | SPP57 | NO AUDIO HANDSET SPEAKER - REPLACE C624, P/N 1-124-126-00 | Unit had no audio out of handset speaker. Traced audio pathand found C624 to be open, this same cap is occasionally found coldsoldered, causing the same problem. | ||
Sony | SPP57 | NO TALK - REPLACE R37, P/N 1-216-065-00 | Unit would not talk. After checking transmit and receive onboth base and hanset, I found the base not to be transmitting or receivingon channel B. IC5/Pin 23 was not going high when on channel B.Found R37 to be open. | ||
Sony | SPP57 | DISTORTED AUDIO (MOTOR BOATING DISTORTION) - REPLACE Q15. | Humming sound or motor boating at dial tone. I checked B+supply at the base and found the DC voltage on Q15 emitter to exceed 5.4v.It was approx. 6.7v DC. Q15 transistor was leaky. | ||
Sony | SPP57 | BUZZING SOUND. | Buzzing sound in transmission and reception. 5th unit in aweek with same problem. | ||
Sony | SPP57 | INTERMITTENT NO DIAL TONE OR (INTERMITTENT BEEPS 3 TIMES) | Poor TX base. | ||
Sony | SPP57 | HANDSET WILL NOT RING OR PAGE - OPEN TRACE ONTO SW-501. | Was able to get a line, but the handset would not ring or bepaged. | ||
Sony | SPP57 | INTERMITTENT NO LINE SEIZE OR DIAL TONE - REPLACE L-613. | Intermittently would not seize line, or no dial tone. | ||
Sony | SPP57 | DEFECTIVE CODE IN HANDSET - REPLACE C-619 (1-164-004-11) | When trying unit, the base line light would light but thehandset light would blink. After the TX and RX test on the analyzereverything checked out OK. The unit worked in test mode so I decided ithad to be a code problem. From snapping a known good handse | ||
Sony | SPP57 | NO RING NOR PAGE - REPLACE SW-501, P/N 1-571-377-11 | The unit would not ring or page. I found SW501 was always inan off position no matter what position the switch was in. | ||
Sony | SPP57 | NO LINE LED - REPLACE D-9, P/N 8-719-029-97 | The unit would grab a line, but line LED would not light. D9(Line LED) had proper voltage to light. Eventually, I found D9 was open. | ||
Sony | SPP57 | NO RING | Unit would page but would not ring from external line. Tracedproblem to defective R-72. | ||
Sony | SPP57 | NO RING/NO TALK | Found handset and base to both be transmitting and receivingand assumed problem to be code. After checking code path in handset,found D-602 cold soldered. Also applies to serial numbers 206190 and87568. | ||
Sony | SPP57 | NO RECEIVE BASE CHANNEL "A" | Base unit would not receive on channel. X-2 was not gettingits voltage. Followed voltage from IC-5 pin 22 to a cold soldered jumperwire located above R-58 on base board. Also applies to serial number290616. | ||
Sony | SPP57 | NOT GRABBING LINE | Not grabbing line. |