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Nice manual. Clear copy and very rare, to boot. Great price, too!
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Excellent service manual. Complete service info. with schematics, step-by-step instructions and illustrations. Well worth the price!
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Great product, helped me to restore vintage walkman cassette.
Just some pictures could be little bit more sharp and contrast
Thank you
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I love older radio's and the service manuals that are sometimes hard to find. Was able to find a manual quite easily on this site.
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Thank you for your shop manual! Your help was very useful - the device is repaired! Once again - Thank you! I wish you a successful business! Edward (Russia).
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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