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As Always you can find here manuals even of difficult TV scheme which are scan in almost perfect way.clear and fast!!!!!
Great work thanks!
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Incredibly clear!!!! Well done, complete and wonderful. It could not better than this!!!!
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Thank You for fast delivery for the sheme.
Everything allright.
Thanks & best regards Franz
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again you did a very good job. It was fast too. Photocopy are really readable and clear
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Probably it never existed a 1081 official service manual from Commodore, it's look more like a NAPCEC service manual & diagrams compilation of the 1084 series and his variants, like the nap6523, 8cm505, 1084S, 1084P and obviously the 1081. It's more complete than other scans and the quality of the scans also are far superior. It has two circuit diagrams variants of the 1081, mono and stereo versions. It doesn't include a diagram for the Philips CM8500 or CM8501, they look like the 1081 but they are slightly different.
X-HX5000, X-HX3000, X-HX2000
6. ADJUSTMENT
6.1 CD SECTION
Note : There is no information to be shown in this CD adjustment.
6.2 TUNER SECTION
6.2.1 FM Tuner Section
� Set the mode selector to FM BAND. � Connect the wiring as shown in Fig. 1, 2.
Step No. Adjustment Title FM SG (1kHz, ± 75kHz dev.) Frequency Level (MHz) (dBmV) Reception Frequency Display Adjustment Location Specifications � Adjust L7 so that the voltaghe between TP8 (+) and TP9 (�) becomes 0V ± 50mV. � Check the waveform with the oscilloscope, and confirm so that the output level is about �11 ± 2dBV and THD is about 0.5 ± 0.1%. Confirm that the "TUNE" indicator in the LCD is turned on.
1
DET. waveform Coil Adjustment
98
60
98MHz
L7
6.2.2 AM Tuner Section
� Set the mode selector to AM BAND. � Connect the wiring as shown in Fig. 1, 2.
Step No. Vt 1 (Tuning Voltage Adjustment) Adjustment Title AM SG (400Hz, 30% Mod.) Frequency (kHz) 530 1700 Level (dBmV/m) � � Reception Frequency Display 530kHz 1700kHz Adjustment Location L2 � Specifications � Adjust L2 so that the voltage between TP6 (+) and TP7 (�) becomes 1.0V. � Set the reception frequency to 1700 kHz and confirm that the voltage is about 6.6V. 1. Connect an electrolytic capacitor of about 10µF to TP9 (TP9 side is +), and terminate with TP10 by a resistor of about 47k�. Connect the sweep input to the both ends of terminated resistor. 2. Adjust T1 so that the marker of 450kHz ± 3kHz becomes the same level (single-peak characteristic of IF becomes symmetrical). 3. Input 74dBµV from the SSG, confirm the waveform of output signal so that the output level is �27V ± 2dBV and THD is about 1 ± 0.5%. And confirm that the "TUNE" indicator in the LCD is turned on. Connect an oscilloscope to TP3 (L) and TP4 (R), and adjust L1 (600kHz) and TC1 (1400kHz) repeatedly so that the output level becomes maximum.
2
IFT Adjustment
1000
S/N about 10dB
1000kHz
T1
3
Tracking Adjustment
600 1400
50 (S/N about 10dB)
600kHz 1400kHz
L1 TC1
33
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