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I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
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It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
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Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
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Great manual very clear copied. You are making an incredible job. I appreciate a lot the rapidity and your efficiency. Thanks a lot
KRC-778R/RV/RY/RYV,878R,PS978R
TEST MODE
(12.2) Procedure for canceling the MASK key request (when the set is reset or the back-up power is turned off while the MASK key is enabled)
1. When the power is supplied and the set is switched on, "TRANSMIT1" is displayed and the MASK key request mode starts. 2. Point the MASK key toward the light sensor and press and hold for more than 3 seconds (until the level indicator indicates the full condition). 3. When "TRANSMIT2" is displayed, press and hold the MASK key again for more than 3 seconds.If "TRANSMIT1" is displayed now, go back to step 2 and restart from there again. 4. When "APPROVED" is displayed, the MASK key is enabled and the set is turned on.
(13) Other
o Automatic panel closing when the TAPE/CD/MD is inserted is disabled. o Pressing the ATT key ON/OFF opens or closes the panel. (The ATT operation can be activated from the remote control unit.) o The DNPP/SBF key of the remote control unit (RC-510) functions as the menu mode ON/OFF key. o The OPEN/CLOSE key of the remote control unit (RC510) functions as the audio adjustment mode ON/OFF key. o The menu feed operations occur only with the necessary features. o Display such as "CODE OFF" is not displayed at the moment power is turned on. o Pressing the TI (AUTO) key during the changer operation turns 2zone on, and pressing the TI (AUTO) key again cancels it. The P/S dot lights during the 2zone operation. o Pressing and holding the MENU key for more than 1 second while ALL OFF initiates the MASK KEY write mode. o The dimmer control of the FL models or the contrast control of the LCD models can be adjusted only to 0/5/10 using the UP/DOWN keys.
(12.3) Procedure for MASK key initialization (Resetting the MASK key enabled condition to the factory-set condition)
1. While holding the FM and preset 6 keys, press RESET to enter the test mode. 2. "TRANSMIT1" is displayed and the MASK key request mode starts.At this time, the display shows "* *" in place of "[ ]". 3. Press the MASK key cancel remote control for more than 3 seconds. 4. When "TRANSMIT2" is displayed, press and hold the MASK key again for more than 3 seconds. 5. When "APPROVED" is displayed, the MASK key is canceled, the demonstration mode is set, the test mode is canceled and the set returns to the factory-set condition.
(12.4) MASK key all-clear procedure
1. While holding the FM and preset 6 keys, press RESET to enter the test mode. 2. Press and hold the AUDIO key for more than 1 second to enter the menu mode. 3. Press the Track UP/DOWN key to select "Mask key". 4. Press and hold the FM or AM key for more than 2 seconds so that "TRANSMIT1" is displayed. 5. Point the MASK key cancel remote control toward the light sensor and press for more than 3 seconds (until the level indicator indicates the full condition). 6. When "TRANSMIT2" is displayed, press and hold the MASK key again for more than 3 seconds.If "TRANSMIT1" is displayed now, go back to step 2 and restart from there again. 7. When "APPROVED" is displayed, the E2PROM is cleared entirely and the condition in "(14) MASK key write procedure in production line (when the E2PROM is in the initial status)" returns.
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