C O N T E N T S Page Disassembly Instructions ............................3 Disassembly Diagram ............................4 Operation Check ..............................5 Printed Circuit Boards................................................6 Schematic Diagram (Main board) ..........................................9 Schematic Diagram (Key board)..........................................11 Electrical Parts List ............................12 Specifications ..............................20...
D I S A S S E M B LY I N S T R U C T I O N S 1. Using the unlock key that came with the unit or a similar tool, unlock the Mounting Box and remove toward the rear of the unit.
O P E R AT I O N C H E C K GENERAL SPECIFICATIONS OF SIGNAL Standard frequency 98.1 MHz (87.5, 108.0 MHz) 1000 kHz (522, 1620 kHz) Signal output 60 dBμV 74 dBμV Modulation 1 kHz 30% MOD. FM Stereo 1 kHz 75 kHz DEV.
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SCHEMATIC DIAGRAM (MAIN BOARD) RE M POW9V M IC _IN C D_L R93 100R SVCC_5V VDD_3V3 USB-DM 10UF VDD_1V32 KEY2 KEY2 10UF 外挂BT可选 KEY1 USB-DP 100R R120 LCD_SDA LCD-DA VDD_3V3 R119 100R LCD_SCL S V C C _5V 100R INH/LED/B9V C D_R LCD_CE C115 C118 C123...
ELECTRICAL PARTS LIST MAIN BOARD Part No. Part name Description Q’ty Unit Position BCD-203801-BT01 Bluetooth module 蓝牙部份 华高嘉WLIS3081 完成品 07-063100-0000 SMT Resistor RES 10R 1/10W ±5% 0603 SMT R124 07-063101-0000 SMT Resistor RES 100R 1/10W ±5% 0603 SMT R138 R139 07-063103-0000 SMT Resistor RES 10K 1/10W ±5%0603 SMT...
SPECIFICATIONS FM TUNER Frequency Range ..............FM 87.5 - 108.0 MHz (50kHz Step) Sensitivity ....................FM 10dBµ (S/N=30dB) Stereo Separating (FM) ................... 30 dB (at 1kHz) Signal to noise ratio (FM) ................Better than 50 dB MW TUNER Frequency Range ..............MW 522- 1620 kHz (9kHz Step) Sensitivity ...................
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