Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
---|---|---|---|---|---|
Sony | SPPX30 | DEFECTIVE DISPLAY/OPERATION | We are seeing continuous problems with sub key switch . Referto FPR #P3139 for a previous report. PC board and key pad damaged likeelectro static arc. It may be a chemical reaction around feed throughholes. Tech recommended to cover feed through holes wi | ||
Sony | SPPX30 | LOUD HISSING IN HANDSET AND EXCESSIVE BACKGROUND NOISE | Customer complaint static, hissing or can't hear caller well,noise. Found cause to be an overly sensitive w/s mic circuit. Triedseveral different resistor values/combinations at R17 and R25 to find themost effective fix. | ||
Sony | SPPX30 | BACKGOUND NOISE, POOR RANGE - INCREASE BASE POWER | Although unit had already been modified per SB, there stillwas plenty of noise. | ||
Sony | SPPX30 | ALL CLEAR COMMAND IN TEST MODE | Unit will not come out of test mode. It will respond to alltest mode commands but when 1,1# is pressed the unit gives an error beep.While unit was in test mode 1 ,2, # was accidentally pressed. This erasedthe ID ROM. | ||
Sony | SPPX30 | CHARGE LED ON AT ALL TIMES - CHANGE IC601, P/N 8-759-030-78 | Charge LED on when battery not in base for charging, IC601/pin16 voltage was low dragging 9 volt down to 7.5-8.0 volts B+. | ||
Sony | SPPX30 | DEFCTIVE DISPLAY/OPERATION | Unit displayed PPPP...across the screen. Often it wouldsearch to answer the call for over 30 seconds. The sub key switch padappeared to have suffered a static discharge and a punch through to thesub board underneath. The failure sample is being forwarded | ||
Sony | SPPX30 | INTERMITTENT SPEAKERPHONE - REPLACE SP601, P/N 1-504-288-11 | When speakerphone was on, and the opposite person on thephone was talking, sound would intermittently cut out. I checked IC601and IC602 for audio signal and it was fine. It never changed or cut out.Found speaker SP601 to be bad. | ||
Sony | SPPX30 | RINGS/ NO CONNECT - REPLACE RY601, P/N 1-515-773-11 | It will ring handset but no connect at Telco line. I checkedIC501 pin 30 (output of CPU base | ||
Sony | SPPX30 | DISTORTED AUDIO - L401 MISSING. | Distortion at handset speaker. I checked transmit frequencyat base, none. I disassembled the base for analysis and found out L401was missing in the base main board. In conductor side no part installedat factory, because solder reflowed at L401 conduct | ||
Sony | SPPX30 | NO LCD DISPLAY LIGHT #3 | No illumination of LED at number 3 or DEF. I disassemble thehandset to check if LED is blown. I found out that no LED at D304.Traced is lifted and no LED exist in the handset. |