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reasonable price for the schematic - the service is perfect, all as expected and pointed by instructions - good scan of the original plans - thank you!
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Manual was just as described!!! I odered it and in less than a day was able to download it and the text was clear and pages were all complete just as the original manual was. Purcashed this for a friend and they were more than happy. Perfect all around!
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Excellent service and prompt delivery. But it's not a manual - only 4 pages wiring diagrams.
Thanks.
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The manual I purchased was exactly what I needed to repair my Toshica television. The manual contained schematics and troubleshooting information that was very helpful.
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Il download del Service Manual JVC HR 4100 non é stato eseguito
RR 430 CD
Abgleichvorschriften / Adjustment Procedures
2. Tuner
Measuring instruments: Signal generator, sweep generator, oscilloscope. Function switch: Radio Adjustment 1. AM IF Preparations Couple in a sweep signal of 455kHz to L504 (ferrite aerial) via a loop aerial. Oscilloscope to testpoint TP 5 (IC501 Pin 7). Band switch: MW MW fu 515kHz, fo 1630kHz Couple in a standard signal to L504 (ferrite aerial) via a loop aerial, (fmod = 1kHz, m = 30%, Ua as low as possible so that the signal is just visible). Oscilloscope to the headphone socket. Band switch: MW MW 558kHz, MW 1440kHz Couple in a standard signal to L504 (ferrite aerial) via a loop aerial, (fmod = 1kHz, m = 30%, Ua as low as possible so that the signal is just visible). Oscilloscope to the headphone socket. Band switch: MW LW fu 142kHz, fo 292kHz Couple in a standard signal to L505 (ferrite aerial) via a loop aerial, (fmod = 1kHz, m = 30%, Ua as low as possible so that the signal is just visible). Oscilloscope to the headphone socket. Band switch: LW LW 153kHz, LW 261kHz Couple in a standard signal to L505 (ferrite aerial) via a loop aerial, (fmod = 1kHz, m = 30%, Ua as low as possible so that the signal is just visible). Oscilloscope to the headphone socket. Band switch: LW FM fu 87.35MHz, fo 108,25MHz Couple in a standard signal via a 10nF capacitor to testpoint TP 1 / TP 2 (GND) (fmod = 1kHz, �f = 22.5kHz, Ua as low as possible so that the signal is just visible). Oscilloscope to the headphone socket. Band switch: FM FM 88MHz, FM 106MHz Couple in a standard signal via a 10nF capacitor to testpoint TP 1 / TP 2 (GND) (fmod = 1kHz, �f = 22.5kHz, Ua as low as possible so that the signal is just visible). Oscilloscope to the headphone socket. Band switch: FM Adjustment Process Adjust to maximum with T501.
2. MW Oscillator
At tuning minimum (515kHz) adjust with T502 and at tuning maximum (1630kHz) adjust with VC501-C to maximum output. Repeat this adjustment alternately.
3. MW Aerial bandpass
At 558kHz adjust to maximum with L504 (MW aerial coil, move). At 1440kHz adjust to maximum with VC501-D. Repeat this adjustment alternately.
4. LW Oscillator
At tuning maximum (292kHz) adjust with TC502 to maximum output.
5. LW Aerial bandpass
At 153kHz adjust to maximum with L505 (LW aerial coil, move). At 261kHz adjust to maximum with TC501. Repeat this adjustment alternately.
7. FM Oscillator
At tuning minimum (87,35MHz) adjust with L502 and at tuning maximum (108,25MHz) adjust with VC501-A to maximum output. Repeat this adjustment alternately.
8. FM Aerial bandpass
At 88MHz adjust to maximum with L503 (bend). At 106MHz adjust to maximum with VC501-B. Repeat this adjustment alternately.
L504
L505
VC501
B A
C D
TP 1 TP 2
TC501 L502 L503 T501 TC502 T502
TP 5
GRUNDIG Service
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