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The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
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Il service manual molto accurato. Rapidi nella risposta
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Quick site processing. A complete and very useful manual with all details. Thank you!
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Quick service response. A useful and very rare service manual with all details. I recomend this service.
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I ordered this manual sometime in the afternoon and I received it on my e-mail the same evening.
This is a fantastically good and properly scanned copy of the original manual. All pages are of the same scale and they overlap each other. It means that you can print the manual and easily make it as a convenient paper manual.
The content of the manual is fantastic. Alignment descriptions, PCB layouts and elementary diagrams are explicit and precise. I immediately found what I was looking for. Thanks to this manual and Owner-Manuals.com my amplifier is alive again. Many thanx indded!
LC-20A2U 4. Getting Initialized 4-1. Connect pins (81) and (82) of IC2001 to GND. Turn on the power. 4-2. Select the model number (A2U). 4-3. Select the screen size (20 inches). Note: This procedure is needed only when the IC2001 or IC2004 (EEPROM) has been replaced. 5. Adjustments 5-1. +B adjustment (+B ADJ. on page 1) 1) Receive the color bar signal. 2) Adjust the voltage at pin (8) of P303 to 5.00 ±0.02 V. Note: The 5.00 V level is used as reference to the supply voltage. Make an exact adjustment to 5.00 V. 5-2. Counter bias adjustment ...... �COM BIAS� on page 2 1) Adjust the COM BIAS setting until the contrast becomes maximum (down to the darkest black). 5-3. White balance adjustment 1) Receive the monoscope pattern signal. 2) Adjust so that the �RCUTOFF� and �BCUTOFF� settings on page 2 of the adjustment process are optimum. Note: The �RCUTOFF� and �BCUTOFF� settings in the adjustment process should be in the range of -10 thru +10. If without this range, the variable user control range will be reduced. 6. Factory Settings Holding down the �TV/VIDEO� and �MENU� keys of the set at once, turn on the main power (make sure �K� appears at the top left of the screen). Then keep pressing the �CH '� and �VOL +� keys at once until �SETTING COMPLETE� appears at the center of the screen. Note: Just after the factory settings have been made, turn off the power switch. (The next time the power is switched on, the set is designed to get started in the EZ SETUP mode. If any other key is activated after making the factory settings, the set may fail to function as specified.)
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