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It's exactly a complete and very useful manual with all details what I needed. Thank you!I will come back whenever I need your manuals or schematics.
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I searched EVERYWHERE looking for the manual/s on this "extinct" amp. Owner-Manuals.com made it available and for nearly nothing. Thanx to them, I can decipher the unknown cables and sort them out. Thanx, Owner-Manuals.com!!
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Yes thank you i got the file i was after. There was a slight problem in my communication but it all worked out well.
A job well done.
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Great manual...really saved me. The only problem is that I thought I would be able to download it directly when I paid for it but never received the download instructions until the next morning. The board trace pages were somewhat light also: really need to turn up the contrast on the printer before printing them. The schematic page was great; very clear! Well worth the money.
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I've been in the electronic business for a long time. I used to buy Sam's Photofact for my needs which intailed having to go to the store and paying about $20 for a package of 3 different units so I was forced to buy more than I needed just to get one.
Owner manual is just at your keyboard and the information is almost instantansouly and the cost is very reasonable. Easy to print out if needed or simply read off of the screen. The larger the screen the better for obvious reasons.
NO.22 FLOW CHART NO.23
(E-E mode is normal). Replace IC651. terminal voltage (REC AGC. ADJ.) pin(37) Is the pin(29) of IC651 about 3.7V? Is there signal inputted at each of IC651 normal? terminal of IC651 as shown in table? NO
YES Check Hi-Fi REC CTL line. NO L-ch R-ch NO YES
No E-E heard. Hi-Fi sound cannot be recorded
record FM signal output the pins(21) Is voltage 5V applied to pin(25) of IC651.
NO Check the peripheral circuit of rear (24) (ch-1)/pins(21) and (22) (ch-2) of IC651?
input terminal. Tuner audio terminal pin(48) Tuner? Check the AH-MZ connector.
YES NO Is there SIF signal from pin(24) of Check line of Hi-Fi 5V.
Rear input terminal pin(14) pin(9) NO
YES
Is voltage applied to pin(40) NO Check the regulator circuit of Hi-Fi 5V IC651, 9V applied to pin(58). and PC 9V.
FLOW CHART NO.24 (E-E mode is normal). Replace IC651.
NO
YES Hi-Fi sound cannot be played back
Are serial data and clock signal at NO Check line between pins(43), (42) of YES pins(43), (42) IC651 and pins(17), (18) IC701. playback envelope signal output to Is A-H.SW.P input into the pin(27) of IC651?
pins(29) and (30) of IC651? (300 mVp-p) NO
YES Check A-H.SW.P. line from the pin(27) of
YES NO Check line between pin(36) of IC651
Replace IC651. IC651 to the pin(26) of IC701.
Is "L" level applied at pin(36) of IC651? and pin(21) of IC701.
FLOW CHART NO.25
NO
47
Recording in linear audio is impossible (Hi-Fi E-E mode is normal). Is Sub carrier signal (3.58MHz, about
YES
Is "H" level applied at pin(28) of IC651? 900mVp-p) input to pin(45) of IC651?
NO to the pin(8) of IC201. YES
NO Check line between the pin(61) of IC651 Is audio signal input into the IC201 pin(8)? YES
Check line between emitter of Q501 NO Check the periphery pin(99) of IC201. (R617)
and pin(28) of IC651.
YES
Is the pin(99) of IC201 in "L" level? Does operate Check the bias oscillation circuit (T601, Q602,
YES RF output terminal : Is there audio signal outputted at pin(59) of IC651? NO
Line output terminal : Is there audio signal outputted at pins(53) and (57) of IC651? normally? Q603).
NO YES
Is audio on which bias signal is
superposed output to the pin(4) of IC201?
Replace IC651. YES
Check the AA-MH harness and A/C head.
Line output terminal : Check line ranging from pins(53) and (57) of IC651 to the audio
output terminal.
RF output terminal : Check line ranging from pin(59) IC651 to pin(2) of tuner (TU101).
VC-A411M VC-H811M
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