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This is a great site. I placed my order and by the next am it was available for download. Had some problems with some missing copy on some pages. Once I brought the error to the OMC's attention, the issue was resolved. I'll come back again.
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Mi spiace per non poter scrivere in inglese... ma sono veramente soddisfatto del servizio offerto. Grazie..!!
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The quality of this manual is good. It has all schematics and setup information for both the MDS-B3 and the MDS-B4. The scan quality is quite good, all pages are readable, This service manual also contains scans of the operating instructions from the User manual.
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Quick site processing. A complete and very useful manual with all details. Thank you!
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Das Service Manual war von der ersten bis zur letzten Seite sehr informativ und hilfreich. Die Darstellung aller Teile war klar und der Text gut lesbar.
Vielen Dank, das war nicht der letzte Download bei ownner-manuals.com.
21HS-50H
� SCREEN ADJUSTMENT 1. G2 Adjustment
1. 2. 3. 4. 5. 6. 7. 8. 9. Enter the service mode (see page 6). Use the channel up or channel down buttons to enter the << BLUE-BACK >> function. Set this to << BLUE-BACK: 0 >>, i.e. blue background is turned off. Turn the set off at the mains. Turn the set back on. Set the picture control settings to normal. Select the SCART input by pressing the TV/SCART button on the remote control. Do not connect an input to the SCART socket. A blank raster will appear. Connect an oscilloscope to TP851 on the CRT PWB. The waveform as in figure 4 should be displayed. Adjust the G2 control (screen voltage) so that the peak of this waveform is 3.0V +/-0.1V above the zero volt line.
� 9GF
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Fig. 4
10. Enter the service mode. 11. Turn the blue background function back on again - set << BLUUE-BACK: 1 >>. 12. Turn off the receiver using the mains button. 13. The G2 adjustment is now complete.
2. Focus Adjustment
1. 2. 3. Receive a monoscope pattern signal at a level of 60 to 80 dBuV. Set the picture settings to normal. Adjust the focus potentiometer to obtain maximum definition.
� AGC ADJUSTMENT
1. 2. 3. 4. 5. 6. 7. 8. Tune the receiver into a colour bar signal on channel E-12. Set the RF generator to an output signal strength of 57dBuV (+/-1dBuV) �50 Ohms unbalanced. Connect an oscilloscope to TP201. TP201 is one end of R201. Enter the service mode (see page 6). Use the channel up and channel down buttons to enter the AGC mode. By using the volume up and the volume down buttons, adjust the AGC until the voltage on TP201 drops by 0.1V to 0.3V below its maximum value. Change the input signal strength to 66-70dBuV and make sure that there is no noise apparent in the picture. Turn the receiver off at the mains, this will exit the service mode and store the adjustment.
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