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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.
5-8
1. If 3 LED indicators flicker from time the set is turned on, it means: 1) The CN106 connector on the DMD board is not inserted properly. 2) The MDR cable that connects DIGITAL board to the DMD board is not connected properly. 3) If the lamp does not turn even after turning it on three times, by powering off/on 15 second intervals: CN106 ! The B+ 380V power is not supplied to the ballast (The cable is not connected properly between the power and the ballast.) MDR cable # The lamp does turn on because 5V has not been Temperature $ 5V is supplied to CN2 terminal on ballast but the neously. lamp does not turn on because the ballast has a failure. CN2 terminal, suspect a ballast failure if the lamp still % The ballast is normal but the lamp doest not turn on. connector (When 5V is supplied CN2 and 385V to CN1, but the
Color wheel index connector lamp does not turn on, try replacing the lamp. If it turns make sure to measure the Color wheel
Alignment and Adjustments
No. Item Picture Description Remarks
When @ The cable connected to CN110 terminal on the Timer, Lamp, DMD board and CN2 terminal on the ballast is shortcircuited or not connected. and Abnormal supplied to blue pin #1 on CN2 terminal of the LED indicators ballast. flicker simulta-
1 (If the lamp replaced and 5V is supplied normally to
Ballast CN2 terminal does not turn on.)
*When measuring voltage, 4) The color wheel engaged to the engine does not operate, Lamp connector
Ballast CN1 terminal on, that means it was a lamp failure.) or connector which indicates operation of the voltage between the two color wheel is not connected properly, and therefore terminals. does not allow the lamp to turn on. The cause can be determined when the set still does not turn on after attempting to turn it on three times. Conclusively, if the three LED indicators flicker, first above five items, then check the various connector connections, and then suspect a failure of the lamp or the ballast.
5) Another digital or the DMD board has a failure.
Samsung Electronics
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