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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY TCWR535
No power - cnp702 disconnected The unit has no power. found the connector cable at cnp702disconnected. also, found the connector cable at cnp701 to bedisconnected on some units.
SONY TCH1600
Replacement chassis has added tabs not found on original The chassis assy. replacement part received from kcp hasadditional metal tabs not found on the original chassis assy. a samplewas sent for evaluation. -hq comments: we will inform kcp and have them investigate. -kcp update: (3/21/94) correct, tabs are
SONY TAAX311
Distortion on left channel after warm up - r346 missing After unit is on for 2 or 3 hours, the left channel distorts.there is dc offset at output of ic301 pin 1.
SONY TAAV411
Incorrect marking on pcb of ic304 -use schem to match pinout Found ic304 board marking for pin #1 and ic notch are notcoordinated correctly.
SONY TAAV411
Low surround output - replaced ic101 Low surround output (intermittantly no audio from input selectas well). found data to surround process ic and input select icintermittent.
SONY TA3200F
No sound (right channel) - r210 defective No sound on right channel.
SONY STRGX808ES
Speaker switch doesn't fully cut off sound Asd reports customer complaining that speaker switch doesn'tfully cut off sound. they then checked several 808'sd and 909's and foundthis to be true. -hq comments: we have looked at this problem in the tech dept. we foundthat because the 808,and 909 ser
SONY STRGX57ES
S/b 239r1 step 4 is unclear as to where cap c399 connects Servicer called me about where to install c399 on the surrtuner board. it is unclear as to where to connect it. also applies tostrgx67es and may apply to strav970x/1070x.
SONY STRD590
No rear audio - resoldered ic601 No rear audio, due to cold solder of ic601.
SONY STRD1011
No am-fm - plugged cnp154 into main bd No am/fm.
SONY STRAV900
No audio, eq display fully illuminated - ic832 open No audio - eq display fully illuminated. turning volume up past halfway caused shutdown.
SONY STRAV67
Unit will not power up - q810, d815 defective Nothing at all when turned on, display shows some dots and thered light on over video and audio buttons. i found q810 and d815defective.
SONY STRAV550
No audio output - ic802 defective Q809 and q810, which is the regulation line on the main board,didn't have 16v, only - 8v at collector of q810. i unplugged connectorcn004 of the input board, and the regulator became normal. i found ic502defective on the input board.
SONY STRAV310
Unit stuck in protect mode - r802 changed value R802 on main board over dissipated becoming 100Ωinstead of its normal 39Ω value. voltage changed at that point.
SONY MDS101
Unit erases disc every time a recording is tried - change hd Unit would go into record but when trying to playback therecording it would show blank disc. the record head being bent is usuallythe problem when the disc is erased but in this case it was not bent andit measured fine.
SONY LBTD117CD
Part # for speakers What is the part # for the speakers for the above system? orhow may they be obtained or repaired? deck/receiver is hcdd117. -hq comments: the speakers are ssd117.
SONY HTCD159
Molded cd chassis breakage - replace chassis Servicer reported finding 2 units with same problem on cdchassis molded pin where set lever ref. #155 is mounted breaks off.
SONY HSTD107
No power/display - broken traces on t1302 power xformer Above 3 units had no power or display. units had standbypower. upon trouble shooting, i found that ry1301 was not turning onbecause the input traces to t1302 were broken.
SONY HSTD107
Mech noise when playing tape a or b - retainer rubbing belt The unit has a loud rubbing sound when either a deck or b deckis running. a visual inspection shows a stiff wire mounted on a screw onthe back of the a deck. the wire, which appears to be a retaining clip isrubbing against belt causing the noise.
SONY HSTD107
Deck a eats tape and does not play - belt a1 (#162) fell off The unit has capstan motion, but does not have upreel motionin deck a. a quick inspection shows that belt a1 (ref# 162) has poppedoff of the pulley.