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Very good manual. Plenty of service information including alignment instructions. Clear circuit diagram. Excellent, thank you.
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Good morning, the service manual you sent me was perfect.
Your service and answering are excellent.
I recomend this service.
Best regards.
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I had been looking everywhere for a proper service manual for this VCR. Everywhere else that has this available for download has a very light version. This is the full service manual with all aspects that would interest anyone looking for the service manual for the AIWA HV-MX100 Worldwide VHS VCR. Great quality (as always). A winner hands down. Best Quality.
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Top quality manual. Covers all aspects you'd expect in a top quality service manual for this Panasonic VHS VCR. The manual resolution is high. Another top quality manual from the only site worth downloading manuals from! If you're looking for a manual for the PV-9662 VHS VCR, this is the one you'll want to get!
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complete part-lists and pcb layout, schematic diagram is good enlargable,
XM-4060GTX SECTION 3 ELECTRICAL ADJUSTMENT
Bias Adjustment
Note : The Bias adjustment should be performed only if any of Q109 and Q110 for RV104, Q209 and Q210 for RV204, Q309 and Q310 for RV304, and Q409 and Q410 for RV404 are replaced. Setting :
stabilized power supply digital voltmeter
B+, REM terminals
set
+ _
GND terminal
test points
Procedure: 1. Rotate variable resistors RV104 (FRONT L-CH), RV204 (FRONT R-CH), RV304 (REAR L-CH) and RV404 (REAR R-CH) full clockwise as seen from the pattern side to minimize the bias current. 2. The input signal is with no signal. 3. Connect the stabilized power supply between B+ and REM terminals and gradually increase the voltage to 14.4 V while checking for any abnormal current. 4. Adjust RV104 (FRONT L-CH), RV204 (FRONT R-CH), RV304 (REAR L-CH) and RV404 (REAR R-CH) so that the digital voltmeter connected between the respective test points reads 6±1 mV. RV Ref. No. RV104 RV204 RV304 RV404 Test points TP11 and TP12 TP21 and TP22 TP31 and TP32 TP41 and TP42
5. After this adjustment, verify that the current value of the stabilized power supply is 1.4 to 1.8 A. Adjustment Location :
� MAIN BOARD (CONDUCTOR SIDE) � RV304 BIAS ADJUSTMENT (REAR L-CH) TP41 TP31TP32 TP42 TP12 RV404 BIAS ADJUSTMENT (REAR R-CH) TP11 RV104 BIAS ADJUSTMENT (FRONT L-CH) TP21 RV204 BIAS ADJUSTMENT (FRONT R-CH) TP22
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