KENWOOD KTCSR902
Manual de Servicio

KTC-SR902
MICROCOMPUTER�S TERMINAL DESCRIPTION
� MICROCONTROLLER IC : 703030BGC035 (X14-933 : IC6)
Pin No. 1 2 3 4 5 6 7 8,9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27~30 31 32 33,34 35 36 37 38 39~48 49 50 51 52~54 55 Name DATA_O LCD_CLK RX TX NC EVDD EVSS NC MUTE1 REQC1 MDI MDO SCK LCD_CE LCD_RST NC IC/VPP RELAY A_MUTE PON_M PON_A NC DIS DAP_RST SSN NC RESET NC NC X2 X1 VSS VDD NC MODE#0 MODE#1 DAC_RST NC BVDD I/O O O I O O O O O I O O O O O I O O O O O I O O O I I I O I Mode signal select. I O O IC7 reset output. Not connect. Power supply for BUS interface. 00 : Normal, 10 : Error invalid, 11 : TA mode Data output to outside driver IC. Clock output to outside driver IC. UART input. UART output. Not connect. Power supply for port. Ground for port. Not connect. 5L I/F to H/U. 5L I/F to H/U. Data input from IC3. Data output to IC3. Data clock output to IC3. Chip enable for outside driver IC. Reset for outside driver IC. Not connect. For write program enable. Audio source selection. Audio mute output. Output for power on main. Output for power on audio. Not connect. Disenable signal input from CN3. IC9 reset output. Enable signal output to IC3. Not connect. H : Not reset, L : Reset Not connect. Not connect. Crystal for main clock. Crystal for main clock. Ground. Power supply. Not connect. H : Not reset, L : Reset H : Write mode, L : Normal H : Sirius, L : CD-CH H : Normal, L : Mute on H : Power on, L : Power off H : Power on, L : Power off Function

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