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There are currently no product reviews.
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This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
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Hi, this is a very clear manual, nice copy, not quite up to the standard of the very best available but better than many others. I think the price was especially fair for a hard to find manual and I would certainly use this manual seller again. Recommended.
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This schema available for me in good condition. I would highly recommend.
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Thanks for this "hard to find" service manual.
I apreciate the good quality of scanning and the pages scanned in A3 format.
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Helpd me mont a new carradio when prewius mont was a mess.
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A
No sound from the speakers
No sound from the speakers Yes Is sound muting set? No Is the volume set to "0"? Yes Raise the volume then check again. Is it only the FRONT input sound that doesn't come out? Yes Yes Is a signal input to IC4401? (pin 1), (pin 3) Yes Check the communications No around the FE (U4401 or U4402) and between the FE (U4401 or U4402) and the microcomputer. Check around IC4402 and No check the communications between IC4402 and the FE. Is the flexible cable between No Connect Flexible cable, CN4001 and CN7804 then check again. connected normal? Yes Is a signal input to IC4801? (pin 25), (pin 26) No Yes Cancel muting then check again.
B
No Is it the only TV sound that doesn't come out?
No
C
Is a signal input to IC4402? (pin 7) Yes
33
Is it only HDMI sound that doesn't come out? Yes
No
Is a signal output from IC4402? (pin 22), (pin 23) Yes
34
Check the communications No around the IC4402 and between the IC4402 and the microcmputer.
Is a signal output from IC6405? (pin 7), (pin 8) Yes
36
around IC6405 and No Check the communication check between IC6405 and the microcomputer.
D
Is a signal input to IC4801? (pin 19), (pin 20)
35
Yes Is a signal output from IC4801? (pin 35), (pin 36) Yes Is a signal output from CN4005? (pin 35), (pin36) Yes
No Check the communication between IC4402 and IC4801.
Is a signal input to IC4801? (pin 10), (pin 11)
37
Yes
No Check the communication between IC6405 and IC4801.
Check around IC4801 and No check the communications
38
between IC4801 and the microcomputer.
Is it the only input REAR input analog sound that doesn't come out? Yes Is a signals input to IC4801? No Check the communication between the jack and IC4801.
E
No Check the communication between CN4005 and CN1402.
38
Has the signal come to CN7201? (pin 13), (pin20) Yes Has the symptom been settled when the system cable is replaced? Yes Finishing troubleshooting No The panel is defective. No Check the communication between CN7201 and IC4801. Yes
39
F
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PDP-R06U
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