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Sony Repair Tips




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Search: sony
Results: 20073
Make Model Symptom Problem Solution By
SONY ITA100
High pitched whine in handset Whine in handset.
SONY ITA100
No ogm recording - resolder r314. Unit will not record ogm greetings. checked ic306 pin/ 16vcca, missing +5.0v. found r314 cold solder.
SONY ITA100
No tone dialing and no speed dial - resolder r128. Pulse dialing ok but no tone dialing. r128 was coldsoldered. r128 is in series with the tone dial output of ic101 pin/16(dtmf output).
SONY ITA100
No answering machine function (unit locks up) - ic303 def. There is no answering machine functiom (unit locks up). ic303was defective.found crack in top cabinet boss for tape deck
SONY ITA100
No answering machine function - replace ic304, p/n 875926072 No oscillation at x301. i checked voltage detector ic304input = 6v but output = 2.9v. ic304 had a defective output.
SONY ITA100
No ogm or distorted ogm - replace mic301, p/n 1-542-161-11 No ogm or distorted ogm. mic301 was worn out.
SONY ITA100
No ring, no connect - replace fuse f101, p/n 1-532-866-11 No ring and no connect. found fuse f101 open.
SONY ITA100
No part # of tape clip for mech 51 No tape clip (spring) part number @ service manual.
SONY ITA100
No connect - replace q102, p/n 8-729-022-86 No connect. found q102 collector and emitter shorted.
SONY ITA100
No mech motion and no ogm greeting - replace ic401 No mechanical motion and no ogm. input vcc to regulatoric309/pin 3 was 5 volts instead of 11 volts, therefore it was losing dcvoltage. isolated ic401 pin 9 to 11 and ic309/pin 3 went up to 11v.before it could not record ogm greeting, after isolation it r
SONY ITA100
No audio - repair lifted trace at c334 No audio. found lifted trace @ c334 connection.
SONY ITA100
Distorted prpogram or dial tone - replace q102 and d113 Distorted program or dial tone. found q102 and d113 defective.
SONY ITA100
No answering machine function, no audio - replace ic308 No answering machine function and no audio. found ic308/pin 17output defective.
SONY ITA100
Low audio on time stamp out line - replace ic308 Low audio from the timestamp through the speaker and out the line.
SONY ITA100
No power - replace ic303, p/n 8-759-267-52 No power. micro ic303 defective temperature higher than normal
SONY ITA100
No power - replace ic304, p/n 8-759-260-72 No power. found voltage detect ic304 shorted.
SONY ITA100
No illumination on power led - reseat connector cn301 No illumination of power led ld502. cn301 connector was loose.
SONY ITA100
Intermittent telephone line seizure - reseat hsw101 Intermittent telephone line seizure. found hook switch hsw101intermittent.
SONY ITA100
No answering machine function, defective time stamp Cracked traced at dc in jack j301 (-) to jp488.
SONY ITA100
No erase - remove solder short on erase head hrpe301 Unit would not erase messages. found solder short to groundonto erase head hrpe301.