Search: sony
Results: 20077
Make Model Symptom Problem Solution By
SONY SPP77
Arcing sound in speaker constantly - replace c522 When handset is turned on, there is a constant arcing orstatic sound in handset. opened up unit and looked at pc board. foundc522 was not soldered correctly onto the pcb. resoldered c522 and problemstill remained. checked c522 and found it to be shor
SONY SPP65
Incorrect part numbers for earpiece Earpiece part numbers are incorrect. when ordering a blackearpiece under part number 3-371-752-11, you receive an ivory earpiece andvice versa.
SONY SPP320
Won't get a channel - resolder ic201 in handset key board When pressing talk on handset unit would just scan. handsetand base were both transmitting the correct freq.
SONY SPP190
No power base - open traces on base board (l601 to q605) After applying power to unit, power led does not light andbase will not function. checked voltage at j601 and found it to be ok.checked voltage on regulator 605 and found it to be ov, found trace openbetween l601 and q605.
SONY SPP190
No charge - replace d601, p/n 8-719-976-96 No illumination on base charge led with low or high battery.i checked ic612 and q609, shorting out with jumper wire at side charge. itfunctioned ok. i measured ic501/pin 31 and it was low, i then traced thevoltage back to current detec. d601 zener diode
SONY SPP190
No power handset - replace ic201, p/n 8-759-148-28 Handset has no power. by putting battery in and scoping pin#7 (reset) of ic201, found that ic is not resetting.
SONY SPP190
Distorted audio - repair traces off handset duplexer (dpx1) Distorted audio is heard in the handset. checked and foundlifted traces from dpx1 to handset main board (ref #55).
SONY SPP180
Range distortion/distorted audio - replace x1 (1-567-773-11) Distorted audio is present in handset. by testing handsetwith (schlumberger s1 4015 stabilock), found tx frequency offset failing.traced frequency offset problem to a defective rp all crystal. (x1)
SONY SPP180
Packaging of ic612 incorrect Ordered ic612, which is supposed to be surface mount, butreceived the correct ic, however it was a through the board ic. there isnothing in sdis as to a packaging change. -hq comments: per kcps, the surface mount ic that you require is8-759-941-01. the
SONY SPP115
Part # in manual is for pc mount not surface mount. Ic is through board mount (should be surface mount).
SONY ITD200
Main board compatibility Ordered replacement main board for itd200. received board andfound different ribbon cable to one touch bd. instead of a 10pin and a 14 pin socket as on the original. part # on original #163445121 part # on replacement
SONY ITD150
Schematic error, lcd bd., ic4 & ic5. revised man. 995609912 Schematic does not agree with board layout or actual unit. schematic actual ic4-2 -> ic3-75 ic4-2 -> ic3-74 & 69 , q402c ic5-2 -> ic3-75 there may be ot
SONY ITA850
No dial tone on handset - replace ic101, p/n 8-759-206-09 Hand set doesn't work. no dial tone on hand set. after along time of troubleshooting, ic101 was intermittent.
SONY ITA555
Drops a line - resolder d403 When unit answered the ring, it would grab the line and thenrelease it. when tracing voltages, found d403 to be cold soldered.
SONY ITA505
Distorted audio/tape - r526 and r530 were wrong values After recording memo, icm and conv. rec., there was speakerdistortion during playback. i found r526 value at 68.4 (it should be 100),and r530 value at 119k (should be 270k). the low resistance values of r526and r530 made the output of ic503/pin 7 (amplif
SONY ITA2500
No power - plug cable (ref #9) onto connector cn101 Unit had no power. after unit was opened, i found the flat cable wire that connects the main board to the keyboard was not all the way into the connector cn101.
SONY ITA2500
Test mode failure keypad failure 0-9 * # - resolder ic202 Unit would go into test mode, but could not perform specifictest functions because of alphanumberical keypad failure. checked keyscan pins 25-32 on dialer ic202, when performing button function found tobe ok. checked b+ and crystal on ic203 also found
SONY ITA2500
No ring/defective bell detect - replace fuse f301 Unit would not ring. found fuse (f301) to be open. replacedfuse and unit worked fine.
SONY ITA2500
Ram test failure - resolder ic802 and ic803 After completion of ram test, error is displayed and errortone is generated. resoldered ram ics 802/803. unit then passed ramtest.
SONY ITA2500
No ogm activation - open trace from ph201/pin 3 and r208 Unit would ring, but would not activate ogm after receivingset amount of rings. pin 3 of photo coupler (ph201) during ring cycle,would go high but pin 14 (ringer) of ic701 was not detecting this. tracedback and found trace to be open between pin 3 of p