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There are currently no product reviews.
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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.
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Rapid, clear well done as all the scheme I downloaded from this site. Great job very functional and very useful
ELECTRICAL ADJUSTMENTS
2-4: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment. 1. Place the set with Aging Test for more than 15 minutes. 2-8: VERTICAL LINEARITY NOTE: Adjust after performing adjustments in section 2-7. After the adjustment of Vertical Linearity, reconfirm the Vertical Position and Vertical Size adjustments. 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (09) on the remote control to select "VLIN". 4. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum. 2-9: SEPARATION Please do the method (1) or method (2) adjustment. Method (1) 1. Set the multi-sound signal generator for each different Lch and R-ch frequency (Ex. L-ch=2KHz, R-ch=400Hz) 2. 3. 4. and receive the RF signal. Connect the oscilloscope to the Audio Out Jack. Press the AUDIO button on the remote control to set to the stereo mode. Activate the adjustment mode display of Fig. 1-1 and press the channel button (64) on the remote control to select �SEPAL�. Press the VOL. UP/DOWN button on the remote control to adjust it until the audio output wave becomes a fine sine wave. Press the CH UP button 1 time to set to "SEPAH" mode. Press the VOL. UP/DOWN button on the remote control to adjust it until the audio output wave becomes a fine sine wave.
2. Receive the gray scale pattern from the Pattern Generator. 3. Using the remote control, set the brightness and contrast to normal position. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (16) on the remote control to select "G DRV". 5. Press the CH. UP/DOWN button on the remote control to select the "R CUT", "G CUT", "B CUT", "R DRV" or "B DRV". 6. Adjust the VOL. UP/DOWN button on the remote control to whiten the R CUT, G CUT, B CUT, R DRV, and B DRV at each step tone sections equally. 7. Perform the above adjustments 5 and 6 until the white color is looked like a white. 2-5: HORIZONTAL POSITION 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (04) on the remote control to select "HPOSI". 4. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum. 2-6: VERTICAL POSITION 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (08) on the remote control to select "VPOSI". 4. Check if the step No. V POSI is "01". 5. Adjust the VR402 until the horizontal line becomes fit to notch of the shadow mask. 2-7: VERTICAL SIZE 1. Receive the monoscope pattern. 2. Using the remote control, set the brightness and contrast to normal position. 3. Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "VSIZE". 4. Press the VOL. UP/DOWN button on the remote control until the Up/Down OVER SCAN Quantity becomes equal to the Right/Left OVER SCAN Quantity. 5. Receive a broadcast and check if the picture is normal.
5.
6. 7.
Method (2) 1. Set the multi-sound signal generator L-ch=1KHz, R-ch =Non input and receive the RF signal. 2. Connect the oscilloscope to the Audio Out Jack (R-ch). 3. Press the AUDIO button on the remote control to set to the stereo mode. 4. Activate the adjustment mode display of Fig. 1-1 and press the channel button (64) on the remote control to select �SEPAL�. 5. Press the VOL. UP/DOWN button on the remote control to adjust it until the R-ch output becomes minimum. 6. Press the CH UP button 1 time to set to "SEPAH" mode. 7. Press the VOL. UP/DOWN button on the remote control to adjust it until the R-ch output becomes minimum. 8. Set the multi-sound signal generator L-ch=Non input, R-ch=1KHz and receive the RF signal. 9. Connect the oscilloscope to the Audio Out Jack (L-ch). Then perform the above adjustments 3~7.
D-2
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