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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY KPR46DX10
Picture blanked - audio ok, replaced ic-1304 Picture blanked and audio is ok. set is not in protect blank-ing (q-4441 collector is low). had rgb output from ic-201 (a board).also had 230v on c boards (filaments lit).
SONY STRAV550
Doesn't tune am or fm Would not tune am or fm. display verified acceptance of keycommands. substitution of vc tuning voltage proved signal circuits ok.q-207 active low pass filter did not respond to normal pwm signal. for-cing the gate of this transistor to 4.8v (normal is
SONY KV32HSR10
Remote inoperative, replaced c-1701 and c-1702 of "a" board Remote inoperative on all functions. scope showed remote sig-nal going into ic-1701 but no output. all voltages were present or veryclose.
SONY TAAX311
Different parts in unit than what is listed in s/m The output transistors are listed in the s/m as 2sc-2921 and2sa-1215. the actual parts in the unit are 2sc-3855 and 2sa-1491. theydo not look like they have been replaced previously. we got the p/n forthe 2sc-3855 and the 2sa-1491 from the semiconduct
SONY CCDF35
Bad loading motor blows fuses Unit blew ps-503 every two or three days. video technician inburbank tells me he has had three of these units with this problem. hetraced problem to the loading motor. the only way he could find it was tosubstitute the boards first.
SONY SLVR5UC
No playback video - playback audio is ok When unit is put into playback mode, audio is present but e-evideo remains on monitor. no playback video.
SONY KV13TR24
Interlace distortion in upper third of raster. replaced c541 Picture had extreme interlace distortion in upper third ofraster. this condition was intermittent. scope shot at pin 6, ic-501 re-vealed severe oscillation or ringing at one side of the trace. bridgingc-541 with another capacitor of equal value cleare
SONY CDPH300
Instructions for test mode incorrect in service manual Unit will not go into service mode.
SONY EVP2
Cassette compartment continuously cycles in and out At plug in cassette compartment continuously cycles in andout. force load the cassette and all functions work. switched 5v line tosyscon read 4.7v.
SONY STRAV920
Several function keys do not operate Keys in row would not operate video 2, tuner, 6, 5, 4 andequalizer. also drlc would not operate in any mode.
SONY FHB5CD
Muting stays activated after power interuption in timer mode When the unit is switched in timer mode, the muting circuitswill stay activated if there has been a power interruption before the setis switched on.
SONY MHC1500
Muting stays activated after power interuption in timer mode When the unit is switched in timer mode, the muting circuitswill stay activated if there has been a power interruption before the setis switched on.
SONY CCDF55
Intermittent operation Unit had several intermittent problems. no camera luminance,no drum fg and overdrive of capstan motor.
SONY EVCX10
Dark/poor picture - iris not working Flex board damaged between the fd-4 board and cn-703 of thecamera block. found crimped between item 104 on page 132 of the manualand the inside of the cabinet. suggest putting a fold in the flex cablewhere it meets the edge of the fd-4 board before ass
SONY EVCX7
Dark/poor picture - iris not working Flex board damaged between the fd-4 board and cn-703 of thecamera block. found crimped between item 104 on page 132 of the manualand the inside of the cabinet. suggest putting a fold in the flex cablewhere it meets the edge of the fd-4 board before ass
SONY KV32XBR70
Random a/v and ch settings/stereo light flashing, ic-101 Writing new a/v data in the service mode or from the user re-mote will not be retained. when power on again, a/v settings come up atrandom channel settings not preset. stereo works but light flashes. re-placed ic-101 and ic-102 did not help. all else
SONY MA50
Ff/rw/bs functions Operation manual states for fast forward or rewind of thetape, turn off the ma-50 on-off switch. testing indicates that this maydepend on what model the adaptor is being used in. when checked on abm-80, the adaptor had to be powered off to activate ff,
SONY XR5500
Part number correction, bt601 lithium battery The part number shown in the xr-5500 service manual isincorrect (1-528-225-11).
SONY CFD750
Intermittent cd operation The cd section would not operate intermittently. we found theproblem to be caused by q-803 (ld on switch). the transistor wouldintermittently not pull the ld on line low enough (ic-701 pin 10).
SONY CFD760
Intermittent cd operation The cd section would not operate intermittently. we found theproblem to be caused by q-803 (ld on switch). the transistor wouldintermittently not pull the ld on line low enough (ic-701 pin 10).