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File name CarAudio MainBoard MCD-3203MB04 VER-1.pdf

SERVICE MANUAL MODEL: AX6392N(OIRT) MENU CHAPTER 1. 1.1 1.2 1.2.1 1.2.2 1.2.3 1.2.4 2 2. 1 2. 2 2. 3 2. 4 3 3. 1 3.1.1 3.1.2 3.1.3 3.1.4 3.1.5 3.1.6 3. 2 3.2.1 3.2.2 3.2.3 3.2.4 3.2.5 3.2.6 3. 3 3.3.1 3.3.2 3.3.3 3.3.4 4 4 .1 TITLE MEASURMENT GUIDELINE AND DATA MEASURMENT CONDITION MEASURMENT DATA FM SECTION FM(OIRT BAND) SECTION AM SECTION CD SECTION SCHEMATIC DIAGRAM MB SECTION DECODE SECTION KEY BOARD SECTION CD SECTION PCB DIAGRAM MAIN BOARD TOP SILKSCREEN BOTTOM SILKSCERRN LAYER TOP SOLDER MASK LAYEY BOTTOM SOLDER MASK LAYER TOP ROUTING LAYER BOTTOM ROUTING LAYER KEY BOARD SECTION TOP SILKSCREEN LAYER BOTTOM SILKSCERRN LAYER TOP SOLDER MASK LAYER BOTTOM SOLDER MASK LAYER TOP ROUTING LAYER BOTTOM ROUTING LAYER CD SECTION TOP SILKSCREEN LAYER BOTTOM SILKSCREEN LAYER BOTTOM PAD LAYER BOTTOM ROUTE LAYE STRUCTURE DIAGRAM MAIN UNIT PAGE NO. 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 1 MEASURMENT GUIDELINE AND DATA 1.1 MEASURMENT CONDITION DESCRIPTION: FM/AM CD/MP3 Player Standard USB Connector with built-in host controller and SD/MMC card slot USB MP3/enconding RCA Output Power: 4X40W MEASUREMENT CONDITION: 1. SUPPLY 2. LOADING 3. S.T.O. 4. dBu =EMF dBu V 14.4 4 1 W REVISION REVISION DETAILS NO. DATE 1.2 MEASURMENT DATA 1.2.1 FM SECTION (FM STEREO 1KHz 75KHz DEV. L+R=90% PILOT=10%) 1 2 3 4 5 6 7 8 ITEM SEPERATION @1mV INPUT STEREO INDICATOR ON SENSITIVITY AUTO SEEK SENS.(STEREO 75KHz DEV) S/N RATIO @1mV INPUT (W/FILTER) SNC SEPERATION (AT 20dB) SNC SEPERATION (AT 3dB) 10% T.H.D OUTPUT POWER MAX. OUTPUT POWER SNC R/L UNIT dB dBuV dB dBuV dB uV W W NOMAL 30 10 23 55 48 20 23 40 LIMIT 25 <15 18-28 50 45-52 35 20 >35 98.1MHz dBuV 98.1MHz 98.1MHz 98.1MHz 98.1MHz 98.1MHz 98.1MHz (FM MON. 1KHz 22.5KHz DEV.) 1 ITEM FREQUENCY RANGE LOW HIGH UNIT MHz MHz NOMAL 87.5 108(ERU) 107.9(USA) 10.7 4 4 4 4 4 4 5 55 60 50 45 30 30 13K 0.5 1 23 40 22 20 ±1 LIMIT 2 3 INTERMEDIATE FREQUENCY USABLE SENSITIVITY (S/N:30dB) 4 I.H.F. SENSITIVITY (75KHz DVE 3% T.H.D.) 5 6 7 8 9 10 11 12 13 14 15 16 17 18 -3 dB LIMITING SENSITIVITY S/N RATIO (@1mV INPUT) I. F. REJECTION IMAGE REJECTION RATIO AM SUPPRESSION SELECTIVITY+/-200KHz (@1mV INPUT) FIDELITY-6dB (@1mV INPUT) (PRE-EMPHASIS ON 50U SEC.) T.H.D. @REFERENCE OUTPUT (@1mV INPUT) OVERLOAD DISTORTION (75KHz 1mV INPUT) 10% T.H.D. OUTPUT POWER (75KHz) MAX. OUTPUT POWER (75KHz) AUTO SEEK SENS.(MONO 22.5KHz DVE) LO/DX EFFECT CLOCK TOLERANCE PER DAY(25±3) MHz 90.1MHz uV 98.1MHz uV 106.1MHz uV 90.1MHz uV 98.1MHz uV 106.1MHz uV 98.1MHz uV 98.1MHz dB 90.1MHz dB 106.1MHz dB 90.1MHz dB 98.1MHz dB 98.1MHz LOW dB HIGH 98.1MHz % 98.1MHz % 98.1MHz W 98.1MHz W 98.1MHz dBuV 98.1MHz dB SEC ±30KHz 8 8 8 8 8 8 <10 50 50 40 35 20 <80 >10 1.5 2 20 35 18-28 ±5 ±3 1.2.2 FM(OIRT BAND) SECTION (FM STEREO 1KHz 75KHz DEV. L+R=90% PILOT=10%) 1 2 3 4 5 6 7 8 ITEM SEPERATION @1mV INPUT STEREO INDICATOR ON SENSITIVITY AUTO SEEK SENS.(STEREO 75KHz DEV) S/N RATIO @1mV INPUT (W/FILTER) SNC SEPERATION (AT 20dB) SNC SE