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Sony Repair Tips




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Search: sony
Results: 20072
Make Model Symptom Problem Solution By
SONY KV1221
No tuner lock in, replaced n2503 This unit worked fine except that intermittently the tunerwould not lock in on the c position. when the n position was selectedduring the failure mode then the c channel information would be present.we found the neon lamp n2503 to be the cause of the pr
SONY KPR4600B
No picture Set would lose display and scan channels. no picture.traced problem to open t502.
SONY KP7220
Erratic tuning and distorted picture, replaced r547, r546 Picture is dark and shrunken in on sides, will not staytuned on channel selected. tuning is erratic.
SONY KX2501A
No sync, remove copper insert from u1001 There have been several units brought into the fsc for repairwith the symptom of no sync. the problem has been traced to theprotective insert installed on the u1001 input terminal. this plug shortstogether pins 1 and 18. this turns on q1329/sync switc
SONY KV2675R
Snowy picture, q-201 uhf amp on "a" board Picture was snowy on both vhf/uhf.
SONY KV2675R
Crt arcing and vertical roll, crt socket Set would arc (more like a loud tick noise) then picture wouldvertical roll for about 20 to 30 seconds, until the next ticking noise.
SONY KV2650R
Snowy picture, replaced band switch ic002 The set would occasionally tune in the vhf low channels. allother channels were snow. we found the band switch ic to be defective.this is becoming more common problem with the units using the la7920 ic.
SONY KV2649RX
Mislanding, removed short When viewing pix at low brightness, the edges of the rasterappeared reddish in color. inspection revealed slight distortion in redinput signal to video drivers. i found the output terminal on the avboard had a lead shorting to the junction of r12 and r
SONY KV2649R
No vertical deflection, replace c508 The set had two problems. no vertical deflection. thewaveform at pin 7, ic502 was pulsing, all the voltages were fine. foundc508 had a 47uf instead of a 1uf that the manual calls for. the secondproblem was no high band. found the uhf and vhf output
SONY KV2145R
No v deflection, replace q502/503 & r520/r555 Vertical problem.
SONY KV1961
Sputtering of the audio, replaced lamp On channel 7 only, you would hear a sputtering of the audio.
SONY KV1952RX
Dead, replace hdt t501 Unit came in dead, found horizontal output (2sd1938) shortedand fuse open. after replacing output transistor and fuse, foundincorrect waveform on horizontal drive transistor. found hdt (t501) tobe defective.
SONY KV1946R
Intermittent shut down, leaky d502 Unit would shut down intermittently.
SONY KV1924
Spot burning on crt Set came in for a burnt spot center of screen (size about1/8 inch). servicer replaced picture tube and after two months set camein again, same problem with new tube.
SONY FD20A
No picture, replaced leaky c603 No picture.
SONY KX2501
Intermittent shut down, replace hvr block Unit would shut down intermittently.
SONY KV9200
Retrace lines on dark screen This unit had retrace lines with brightness control turneddown.
SONY KV5300
Tuner assembly touching fuse holder Tuner assy touching fuse holder f601. repaired six units withsame problem.
SONY KV2675R
No vip, reset procedure Set snaps then vip will not work, screen scrambled (1 end-user, 2 dealers). also, ic104 (cx7958) will kill remote (another set).snapping seems to come from pix tube. -hq comments: as a first approach to the problem, please perform thefollowing reset pr
SONY KV2670R
Incorrect display (aux) on the screen, use kv-2675r remote On screen display the following display selections muting,sleep, channels were displayed but aux. appeared also. this happenedwhile the dealer was demonstrating the kv-2670r and i was observing.end-user came in also and wanted to know how to get rid of