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Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SONYCDX7580
Error message e04 comes upError message e04 comes up even on discs that will play ok onother brands of cd players (automotive). confirmed symptoms but have notyet located problem. any others indicating same/similar problem? -hq comments: this situation is mainly due to some di
SONYCDX7540
Error message e04 comes upThree units with the same problem. error message e04 comes upeven on discs that will play ok on other brands of cd players(automotive). confirmed symptoms but have not yet located problem. justseems unusual one dealer would have three units with the s
SONYCDXR77
Malfunction of power antennaCar stereo service bulletin number, car0149 does not work.the emitter of q-406 when installed will be connected to the emitter ofq-419. this will destroy q-406 when power is turned on.
SONYESR11
Clock display on esr-11Esr-11 car stereo with 11 pin power cord connector shows a dimclock display with unit turned off. this display is not noticed on thees-r11 with the 9 pin power cord connector.
SONYSPP90
Intermittent dial toneTone dial intermittent or not working at all. also appliesto serial numbers 59849 and 62172.
SONYKV32XBR10
Shutdown - intermittently, resoldered t-501 (hdt)Set would shutdown intermittently. servicer found primaryside of t-501 not soldered properly.
SONYKV27XBR10
Shutdown - intermittently, cold solder t-501Set would shutdown intermittently. servicer found primaryside of t-501 not soldered properly.
SONYTAE1000ESD
Hum when using subwoofer and center channel outputs60 hz hum heard at subwoofer speaker, when subwoofer amplifieris turned on to max volume out.
SONYKV27EXR10
Low volume on variable audio out, normalWe have had several complaints that the volume is too low onthe variable audio output. do you have any official suggestions beforewe fix this problem? -hq comments: this is not defective of the unit. it is just a designsetting. customer can control a
SONYSPP320
Intermittent handshake and static on audioPhone would intermittently not lock up, and when it did, therewas static. when handset was taken apart, phone worked. phone workedbecause antenna was not connected.
SONYSTRAV47
No audio output-ic501Inputs and outputs can be selected but you do not have anyoutput from ic-501, pins 18 and 25. all voltages on ic-501 are goodand have inputs to pin 20, 21 and 22. ic-501 has been changed. -hq comments: i suggest that your problem is caused by either a
SONYCCDF45
Does not recordThere was no 5v at pin 55 of ic-203 on cv-8 board. thebase of q-210 was 5.1v and would not go to 4.4v.
SONYKV27TS20
Vertical foldover in middle of screen, replace r-543Unit had foldover in middle of picture vertically. drivewaveform and feedback waveforms were incorrect. r-543 changed value from27kΩ to 35kΩ. resistor is in the feedback circuit.
SONYKV27TX20
Snowy picture, c-102 shortedThe picture was extremely snowy on all stations. agc lineread 0v.
SONYKV32XBR10
Power switch marking is coming offMarking on bezel assembly is coming off. other models havethe same problem.
SONYSTRAV950
Cannot turn on using remote, short between pins 7,8 cnp-822When unit is in standby mode, the remote will not turn onthe unit. all other remote functions work, once the unit is on.
SONYCPD1304
No blue - cpd monitorNo blue.
SONYCCDF55
Part number for eject switchServicer orders part number 1-571-275-31 (eject switch)and gets physically incompatible switch. -to tokyo: can you check if this is the correct part number?thank you in advance for your help. -hq comments: correct number is 1-572-284-11. see fpr l1167.
SONYRM788
Need service manual for rm788Service manual for kpr-46ex20 states that the service manualfor rm-788 will be issued separately. -hq comments: tokyo will not be making a service manual for this remote.if service is needed, the only parts which are available are:1-465-503-11 remote rm
SONYCCDTR5
Test connector for ccd-tr5Part number for test connector. -to tokyo: is there a part number available for a test connector tomate with cn-204 on the vs-22 board? it may help in servicing theccd-tr5. thank you in advance for you help. -hq comments: this jig should be available