☰

Sony Repair Tips




AIWA
BEKO
CCE
CINERAL
DAEWOO
FUNAI
GRADIENTE
GRUNDIG
HITACHI
ITT
JVC
LG
MITSUBISHI
PANASONIC
PHILCO
PHILIPS
PIONEER
RCA
SAMSUNG
SANYO
SHARP
SONY
THOMSON
TOSHIBA
VESTEL


Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY KV2670R
No raster, r-526 open, c-527 open and q-504 leaky This unit had no 1000 volt g2 screen voltage. r526 was open.c527 was blown in half. d508 was changed for safety. q504 was leaky.
SONY KV2649RX
Poor focus on the screen, replace t861 Set had poor focus on right side of screen (about 4 inches).by tapping t-861, the focus would get worse or better.
SONY KV2649RX
No function, replaced d021 Set cannot be turned off, except by the master switch.channel up/down, volume up/down, picture, color etc. do not work. foundd021 leaky.
SONY KV2602
Vertical distortion, replace c516 This unit would play for approx. 20 minutes with no problem.after the circuit had sufficiently heated up the vertical would start tocollapse until there was only about 1/2 inches of deflection. we foundc516 to be defective. monitoring the resistance ac
SONY KV1975R
No vip function, replace ic103 The above 6 units came randomly in a period of 2 weeks from2 servicers (all in the city), for no vip function. two could be resetfor vip, the rest remain with no v/p function. acquired a few new chipsand installed with very good results (cx-520-111n).
SONY KV1913
No sound No sound, but picture ok.
SONY KV1554RWP
Intermittent on/off Will come on intermittently.
SONY KV1354R
Dead, replaced ic-003 This unit would not turn on and all other functions wereinoperative. we found ic-003/pll controller to be defective.
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.