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Sony Repair Tips




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Search: sony
Results: 20100
Make Model Symptom Problem Solution By
SONY XR65
Open trace Foil open on volume control board. this foil appears to haveburned open.
SONY XR50
Solenoid drive transistor Cass. will manually eject, but not automatically at end oftape play.
SONY XR45
Voltage errors in manual Many voltages in the power supply seem to be in error andneed clarification. voltage difference exists on the same foil conductor. -hq comments: a list is provided below of the key voltages: please makea note of these voltages in your xr-45 s/m also.q
SONY WMF10
Motor noise Servicer has had several complaints of motor noise throughhead phones. this problem does not show up on wm-10 but only on wm-f10. -hq comments: electrical motor noise occurs when the b+ line is furthertaxed by: 1) loaded motor 2) decayed battery 3) l
SONY WMF1
Open rv-1 When receiving stereo fm signals the sound was distorted.we found rv-1 to be open - vco adjust.
SONY WM10
Loose spring Small hair spring that sets in plastic groove of auto shutoff part of pinch roller comes out of groove and unit will not start toplay auto shut off taken over.
SONY TCK555
Defective ic202 Unit would go into rec mode, however reel tables would notturn and it would eat tapes. found that b+ (10v) to board was low.isolated problem to shorted ic202.
SONY TCFX44
Defective ry301 This unit would play back fine. however when recording therewere intermittent passages with motorboating. we found ry301 (whichswitches the head between pb and rec) to be defective. this caused a poorground connection on the head.
SONY TAAX500
Fractured ground lug With the volume control set at minimum there is an imbalancein the sound level and static in one or both channels.
SONY STRVX550
Missing part number in manual No part number for fm tuner in s/m. fm tuner number isa-434-402-9a.
SONY STP75
Defective control upc - ic603 This unit did not light any display segments and there wasno tuning. a check of - control upc - ic603 revealed that the ic wasinoperative.
SONY RS30
Short on secondary of t901 No power. spring connector was bent towards pc board,shorting to ground the secondary of t-901 (power trans).
SONY PSLX500
Audible noise Low level thump or rumble like noise is heard when everhorizontal drive motor moves tonearm.
SONY PSF5
Instructions in manual Page 17 of service manual, in order to perform verticalbalance and horizontal balance we recommend using a 70mg, a 245mg anda 315mg weight. servicer has asked if we have a p/n for these weights. -hq comments: use the following number of washers to get
SONY PCMF1
Defective ic531 Sound breaks up (muting) on e to e and on playback ofprerecorded tape. found vco drifting. found no dc change at output ofic531 pin 1 although input to pin 3 was changing.
SONY MTL10B
Defective q511 All functions inoperative. unit had been worked on by dealerand microprocessor had been changed (ic502). found that there were nokey scan pulses to pins 30/31/32 and ic502.
SONY M205A
Defective panasonic cassettes I have had several instances of erratic or non-operation ofm205a at the pittsburgh fsc counter. in all of these, the customer wasusing panasonic mc60 cassettes. replacement with sony mc60 cassettescured all problems to satisfaction of customer.
SONY ICF2001
Defective ic201 The am was very weak and only strong stations could bleedthrough. we found the problem to be caused by incorrect bandswitching.we found ic201 to be putting out the wrong commands.
SONY ICF2001
Defective filters q32/q51 The fm muted above 89.20mc. am worked fine we found the pwmnot being properly filtered out of pll-1.
SONY CFS99
Substitute part was smaller Substitute part was smaller. -hq comments: late production cfs-99s used a larger gear (an) identifiedby p/n 3-579-641-00. please make a note in your s/m.