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Very helpfull information and I highly recommend this source for needed information about your products.
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This is a good quality scan of the service manual which includes an assembly diagram, block diagram, schematic, and parts list. Exactly what is needed to repair my KR-V55R receiver.
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Excellent concise manual. All needed information was included. Typeface and diagrams were clear. Very fair price considering what others are charging. Many thanks
LC-20S5H/M/X
ADJUSTING PROCEDURE OF EACH SECTION
The best adjustment is made before shipping. If any position deviation is found or after part replacement is performed, adjust as follows.
1. Preparations
(1) Plug the AC power cord directly into a wall outlet. [1] Adjustment procedure 1-1. Adjusting the checker Turning on the power (initialization) � Making the model and size settings � Transferring the model-related data to the setting E2PROM (I2C) 1-2. Adjusting the finish process Final assembling � Turning on the power � Calling the adjustment process mode (bus connector) � Adjusting the common bias, TAMP, and white balance (cut-off and gain) settings [2] Calling the checker mode/adjustment process mode 2-1. Calling the checker mode * Keep KEY5 (pin (82) of microprocessor) at "L" and turn on the power. KEY-4 KEY-5 Mode shift H H Normal mode (Data is written and stored on EEP is brand-new.) L H Shift to adjustment mode H L Activated with the checker-oriented master ROM values (EEP still brand-new even after the checker mode) L L The EEP gets initialized and the microprocessor's master values are written. (Process-adjusted settings not reprogrammed) 2-2. Calling the adjustment process mode There are two ways to call this mode. * Turn on the power and press the "ADJUST PROCESS" key on the remote controller. * Keep KEY4 (pin (81) of microprocessor) at "L" and turn on the power. * For servicing: Hold down the INPUT key and VOL (�) key at once, and turn on the power switch. ("K" appears at the top left of the screen to indicate the inspection process mode.) � Press the CH (�) key and VOL (�) key at once. (The adjustment process mode screen shows up.) _ To quit, turn off the power. (Or turn off the power switch or turn off the remote controller.) [3] Key operation in the adjustment process Basic operation Selecting the receiving channels * Using the CH (ù)/(�) keys, turn up and down an actual receiving channel. Snap press: The channels are turned up and down one by one. Continuous press: The next receivable channel is searched. * Various adjustments The items are adjusted one by one by selecting on the menu screen and using the cursor key and VOL (+)/(�) keys. * With the CURSOR UP/DOWN keys, select an adjustment item. * Using the menu key, the adjustment items are selected one after another. When the bottom item on a page is already selected and the menu key is pressed, the top item on the next page is selected. * If any item on a page is selected and the preset key is pressed, the top item on the next page is selected. Page 1 � Page 2 � Page 3 � Page 9 � Page 1 ... * If any item on a page is selected and the manual memory key is pressed, the top item on the same page is selected. * Using the CURSOR LEFT/RIGHT keys and VOL (+)/(�) keys, turn up and down the setting of a selected item. Hierarchical shift * When the ENTER key is pressed on any item other than I2C DATA on page 4, the setting page of the item shows up. * To quit the setting page, press the front screen key.
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