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Thanks you very much for this "hard to find" service manual.
Will help a lot in repairing this tuner.
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I have this hi-fi system for a long time and I need to repair some things. Founding this manual will be very helpfull :)
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It is pretty good. The schematics were covered all components, the manual also provide the parts list . It's useful for the trouble shooting.
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Very fast service, best quality of the service manual and the schematics
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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.
Pin No 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
70
Pin Name P36 P35 G1 P34 VDD3 P331SPEANA-A P321SPEANA-B P311SPEANA-C P30/AM.sT VP P291LW P28/SW P27/FM 1 P26/RDS P251BBE P241DSP P23/AMIOK P2210PICL.SW P21/HoME.sw P20/MoDE.sw P19/REc.REQ P18/TIME.BAsE P17/MIc P161PLAY P15 P14 P13 P12 Pll Plo VDD4 P9 P8 P7 P6 P5 P4 P3 P2 P1 O-K-SCAN
1/0 o o o o � o o () 0/1 FL segment output (P36). FL segment output (P35). FL grid output (1G). FL segment output. Connected to VD (for FL).
Description
FL segment output (P33) / Spectrum analyzer band switch output (A). FL segment output (P32) / Spectrum analyzer band switch output (B). FL segment output (P31 ) / Spectrum analyzer band switch output (C). FL segment output (P30) /no AM ST diode input. Connected to-VFL.
0/1 0/1 0/1 0/1 0/1 0/1
0/1
FL segment output (P29) / LW diode input. FL segment output (P28) / SW diode input, FL segment output (P27) / FM 1 diode input. FL segment output (P26) / RDS diode input. FL segment output (P25) / No BBE diode input. FL segment output (P24) /No DSP diode input, FL segment output (P23) / AM 10K diode input, FL segment output (P22) / MD OPEN/CLOSE switch status input, SW ON: �L�. FL segment
output
0/1 0/1 0/1 0/1 0/1 0/1 0/1 o o o
o
(P21 ) i
MD HOME SW status input, SW ON: �L�,
FL segment output (P20) / MD MODE SW status input, SW ON: �L�. FL segment output (PI 9) / MD REC request input. FL segment output (Pl 8) / Clock time base input. FL segment output (P 17) / microphone signal input. FL segment output (P16) / MD playback request input. FL segment output (P 15). FL segment output (Pl 4). FL segment output (Pl 3). FL segment output (PI 2). FL segment output (Pl 1). FL segment output (Pl O). Connected to VDD (for LF). FL segment output (P9). FL segment output (P8), FL segment output (P7). FL
segment output
o o � o o o o o o o o o I
71 72 73 74 75 76 77 78 79 80 81 82
(P6).
FL segment output (P5). FL segment output (P4). FL segment output (P3). FL segment output (P2). FL segment output (PI). Segment input permission input.
-53�
 $4.99 XRH66MD AIWA
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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