☰

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 KV9400
Set would lock on one ch Could not change channels. checked the 33 volt line and foundonly 5 volts. traced to a leaky q18 transistor.
SONY KV3000
Intermittent loss of red color Customer complained of intermittent loss of red in the color.servicer found bad connection at base of q1344 on the b board.
SONY KV2648R
Shut down, replace ic601 and others Shut down. indicator light comes on momentarily after turnon.
SONY KV2602
Dead, replaced q601, d501, b rect, etc Set dead. no sound, no picture. found defective the follow-ing parts: bridge rect. power module, q601 transistor, d501 zener diode,and 5 amp fuse.
SONY KV1946R
Dead, replace q901 and q602 No sound - no picture. found q901 and q602 shorted.
SONY KV1945RS
Shut down, solder splash Immediate shut down after turn on - less than 1/4 second.dealer suspected shut down circuit or power supply but could not evenpower on oscillator. all sweep voltages checked with meter showed 0Ωat 15v line. 15v line on md board shorted to ground.
SONY KV1945R
Picture distortion, replaced hlc Complaint about horiz. linearity specifically when writingtransversed screen. replaced hlc with p/n 1-459-136 (hlc from 1930r).problem resolved. expect inductance of hlc (1-459-316) too low. pleasesupply definite fix - have had 3 complaints to date.
SONY KV1923
Sound distortion, replaced d2006 When set was first powered up, volume was maximum and couldnot be lowered. unit was turned off and restarted with no sound now atall. checking output of a/d convertor, tns3701bns, found no pwm signal.measured standby supply voltage, pin 8, with power o
SONY KV1722
Set fails after a few days, replaced r569 Intermittently this unit would fail after servicing for astart circuit problem anywhere from one week to two months later. theunit had been in 7 times in the last 6 months. after running for aconsiderable time under a heat lamp the voltage at the colle
SONY KV1207
Poor vertical Vc amp leaky. repaired by replacement q101, 2sc1815 withreplacement 2sc1364. unit was ok for 6 weeks, then q101 failed again insame way. replaced and checked circuit. found no reason for failure.perhaps static problem. enclosed you will find the ori
SONY KP5040
Test signal interference, install cap Cross hatch bleed through on kp-5040. bar pattern when view-ing a weak incoming active channel. this condition sometimes can be moreeasily observed by setting the tv line switch s907 to the line position.in this configuration a faint bar can be seen ru
SONY KP5040
Picture distortion (oscillation), add cap Oscillation (snivet) down center of screen noticed on set inclose proximity. also had white horizontal lines similar to ignitionnoise.
SONY KP5040
Color distortion, replaced ic3301 and crt Red very weak, unable to set gray scale. bias wrong onpicture tube. changed ic3301 corrected bias, but red picture tube bad,had to change it too.
SONY KP5020
Incorrect convergence All three colors would not center properly. found d5501shorted on da board. also schematic is labelled wrong, voltage afterresistor r5597 should read +5 volts but schematic indicates +12vdc onda board.
SONY KX2501
No color, replaced ic1302 No color under any input, faint retrace lines in black andwhite picture. sometimes flickering of colored snow but out of colorsync.
SONY KV9000
Tv would not come on Tv would not always come on. found c508 intermittently open.
SONY KV2648R
Color confetti on b/w, adj cv301 Color confetti on b/w telecast.
SONY KV2648R
No picture, replaced f601, q602 and q603 This unit keeps on blowing f601 and q602. isolated problemon the f board by disconnecting the 135v b+ and supplying a separateexternal b+ (tp92 was the ground return) to the a board. this makes thea board work. hv normal but no raster. then by using
SONY KV2648R
No manual operation, replace c4038 You cannot turn set on or off by manual button. set wouldwork ok with remote. i found no logic high at pin 33, ic4001. capacitorc4038 was shorted on mz board.
SONY KV2648R
Bottom of screen blank out, replaced cx841 Bottom and left side area of the screen blanked out. foundcx841 defective.