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Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
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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.
KRC-435/665
TEST MODE
10. Special display when the display is All ON
If the PRESET key is pressed while all displays are turned on by ALL OFF, the following display appears. Version display (8 digits, Month/Day/Hour/Minute) (Display) xxxxxxxx System microcomputer PRESET 2 All displays are turned on. Short press : Power-ON time display PRESET 3 Long press : Power-ON time is cleared. (Display) Pon xxxxx Max. 65535 (hours) Short press : TAPE/CD/MD running hour display PRESET 4 Long press :TAPE/CD/MD unning hour is cleared. (Display) CDT xxxxx (CD/R) TPT xxxxx (C/R) Max. 65535 (hours) Short press :TAPE/CD/MD eject count display PRESET 5 Long press :TAPE/CD/MD eject count is cleared. (Display) EJT xxxxx Max. 65535 (times) Short press : PANEL open/close count display PRESET 6 Long press : PANEL open/close count is cleared. (Display) PCX xxxxxx Max. 65535 (times) PRESET 1 2. Enter the security registration mode by pressing the CLK key. 3. Enter the CODE by pressing the Track up/down and AM/ FM key. Example: To enter "3510" � Press the FM key four times. � Press the Track up key once and the FM key six times. � Press the Track up key once and the FM key twice times. � Press the Track up key once and the FM key once times. � When the AM key is pressed, the codes are searched in reversed direction. When Track down key is pressed, the entry digits return. 4. When the DISP key is pressed for three seconds, the message "RE-ENTER" appears. Then enter the code referring to step 3. 5. Press the DISP key for three second so that the message "APPROVED" appears. 6. Quit the test mode. (See item 2. How to quit the test mode.) (Note) The security code of this model cannot be all cleared.
� Write timing into EEPROM is when ACC OFF and POWER OFF sequence is completed.
� Simple security code clear procedure (K type only)
1. Press the VOL UP key longer for 3 seconds while pressing the DISP key during requesting the code. (The message ---- disappears.) 2. Enter "KCAR" from remote control. (Same as the 00 model) � Press the 5 key twice on remote control and press the Track up key. (Enter "K".) � Press the 2 key on the remote 3 times, then press the Track Up key. (This enters "C".) � Press the 2 key on the remote once, then press the Track Up key. (This enters "A".) � Press the 7 key on the remote twice, then press the Track Up key. (This enters "R".) 3. The security is released and the product enters the ALL OFF mode. 4. If incorrect code is entered by mistake, the product enters the code-requesting mode.
11. Others
� Displays such as "CODE OFF" are not shown during Power-ON. � When the CLK key is pressed longer for 1 second during ALL OFF, the product enters the MASK KEY (security) write mode. � The RESET-LOADING is not performed unless CD is already caught in the CD/R mode.
s Security-related information
� Forced Power ON mode (All models)
Even when security (MASK key) is enabled, the product can be powered ON for 30 minutes only by pressing the RESET key while both of the ATT key and the Preset 4 keys are being pressed. The product will recover only by RESET if 30 minutes have elapsed.
� Security code registration procedure (code security model) after EEPROM (F/E) is replaced.
1. Let the product enter the test mode. (See 1. How to Enter Test Mode) 7
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