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AMC XT Service Manual

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STEREO TUNER

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Page 1 STEREO TUNER...
Page 2 TUNER ALIGNMENT PROCEDURE FM SECTION A. PREPARATION 1. Set stereo modulator to mono mode with 1KHz modulating signal unless otherwise state. 2. Set signal generator to FM mode with 75KHz deviation. 3. Store the following frequencies: 87.5MHz, 90.1MHz, 98.1MHz, 106.1MHz and 107.9MHz. 4.
Page 3 4. Check if auto-search operation is working properly at antenna input level of 28dB. G. CENTER TUNER LED 1. Turn VR1 fully clockwise. 2. Set stereo modulator to MONO mode and 98.1MHz (26dB) to antenna input. 3. Adjust VR2 clockwise until “I” display in the LCD. H.
Page 6 XT SERVICE PART LIST - EC, BLACK PART DESCRIPTION ITEM PART NUMBER LOCATION Q'TY 1 90-1742-2 MODULE, TUNER MAIN PCB 2 29R-1236-220 L5.6. INDUCTOR 22uH 10% SMD 1210 3 29R-1236-2R2 INDUCTOR 2u2H 10% SMD 1210 4 29R-1236-680 INDUCTOR 68uH 10% SMD 1210 5 30R-LC72131M IC4.
Page 7 PANEL FRONT BLACK XT w430xh72xd23mm 70 11R-6425-1 CHASSIS FRONT RoHS XT 420x57.2x13.5mm 71 11R-6436 CHASSIS MAIN RoHS 72 13-1063 WINDOW DISPLAY XT 73 11R-1123-1 COVER TOP BLK RoHS 74 12-1083 POWER LINK 75 12R-1120 SHAFT BUTTON 76 12R-2177 ANT FM 300 ohm T TYPE...
Page 8 XT DIFFERENT VERSION PART LIST PART NUMBER XT-B_EC XT-B_A1 XT-S_EC 11-1123S ------ ------ 11R-1123-1 ------ 11R-8633B-2 ------ 11R-8633S-2 ------ ------ 12-3122S ------ ------ 12R-3097S ------ ------ 12R-3110 ------ 12R-3152GN ------ 14R-5030*A ------ 14R-5107*B ------ ------ 15R-2090B ------ 15R-2090S ------ ------...