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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
GEX-FM903XM
Diagnostic mode
1. To Enter the Diagnostic mode Reset while pressing the 4 and 6 keys together. 2. To Exit from the Diagnostic mode Reset the system. 3. Contents of the Diagnostic mode Number Mode name 1 BER INFO Entry method Summerized Description Error rate (one effective digit) for the Bitabi signals of the terrestrial wave + satellite wave 1 + satellite wave 2. Decryption LOCK for the terrestrial wave + satellite wave 1 + satellite wave 2 (MCM and TDM for terrestrial wave, QPSK and TDM for satellite waves). AGC values (two sets of four-digit decimal values) of the terrestrial wave and satellite waves. Number of Read-Solomon error correction bytes (four digits of hexadecimal value) + number of error frames (four digits of hexadecimal value). Information on LOCK/UNLOCK of PLL and Synchronous assembly (A/B). Error code of the defective location identifier.
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Press the number 1 key for less than two seconds while in XM1 of the Diagnostic mode. Press the number 2 key for less LOCK-DETECT than two seconds while in XM1 INFO of the Diagnostic mode. Press the number 3 key for less AGC INFO than two seconds while in XM1 of the Diagnostic mode. Press the number 4 key for less RS INFO than two seconds while in XM1 of the Diagnostic mode. Press the number 5 key for less TUNER INFO than two seconds while in XM1 of the Diagnostic mode. Press the number 6 key for less ERROR CODE than two seconds while in XM1 of the Diagnostic mode. Press the number 1 key for more SAT1-BERthan two seconds while in XM1 INFO of the Diagnostic mode. SAT2-BERINFO TERR-BERINFO MICRO Status 1 MICRO Status 2 ANTENNA PASS QOC Message Press the number 2 key for more than two seconds while in XM1 of the Diagnostic mode. Press the number 3 key for more than two seconds while in XM1 of the Diagnostic mode. Press the number 4 key for more than two seconds while in XM1 of the Diagnostic mode. Press the number 5 key for more than two seconds while in XM1 of the Diagnostic mode. Press the number 6 key for more than two seconds while in XM1 of the Diagnostic mode. Press the number 1 key for less than two seconds while in XM2 of the Diagnostic mode. Press the number 2 key for less than two seconds while in XM2 of the Diagnostic mode.
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Bitabi signal decryption error rate (three effective digits) for satellite wave 1. Bitabi signal decryption error rate (three effective digits) for satellite wave 2. Bitabi signal decryption error rate (three effective digits) for terrestrial waves. System operation mode (two digits of hexadecimal value) + XM operation mode 1 (two digits of hexadecimal value). XM operation mode 2 (two digits of hexadecimal value) + XM operation mode 3 (two digits of hexadecimal value). Bypass of the antenna connection check sequence (released by resetting the system). Display of the quality of service value (two digits of decimal value). Decryption LOCK/UNLOCK onto the terrestrial wave signal, decryption rate of the Bitabi signal (two effective digits of decimal value) + RS error correction rate (two effective digits of decimal value) + RS error rate (two effective digits of decimal value).
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TERR Message
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