AIWA XP-R210AHA
Service Manual

IC,uPD789405AGK-A12-9EU
Pin No. 1 2 3~5 6 7 ~ 10 11 ~ 27 28 ~ 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 Pin Name VDD BIAS VLC0 ~ 2 VSS1 COM0 ~ 3 SEG0 ~ 16 NC DSL1 DSL2 STBY BEEP-ON CS B-FULL B-MID B-EMP AVDD AVREF K-PSB K-FUNC1 K-FUNC2 BATT-LEVEL HOLD/OFF REMO-IN TU-SEL AVSS DATA-IN DATA-OUT DISP-CS SK BEEP DISP-DATA NC DISP-CLK AM-STEP K-PLAY K-STOP K-OP/CL CD-CONT P-OFF A-MUTE I/O O O O O O O O O O O I I I I I I I I O I O O I O I I O O I O O O +3 V power supply. LCD driver power supply. LCD driver power voltage. GND. LCD common output. LCD segment output. Not connected. �H� when DSL1 output. �H� when DSL2 output. �H� when STBY output. �H� output when CD BEEP is �ON�. E2P-ROM chip select. �L� when �battery level LED-FULL� is illumenated. �L� when �battery level LED-MID� is illumenated. �L� when �battery level LED-EMP� is illumenated. AD converter analogue power. AD converter reference power. PLAY, STOP, BAND keys input. KEY input 1. KEY input 2. BATT level input for battery level indication. �L� input when in HOLD mode. Remote control AD figure input. Japan or oversea settings input. �H� = Japan, �L� = oversea. GND for AD converter. E2P ROM data input. E2P ROM data output. Chip selection input for CD indication data. E2P ROM clock output. BEEP output (it is fixed due to square-wave output. CD detection data input. Not connected. Clock input for CD detection data. AM STEP (9K/10K) switch input. �H� output when PLAY key is pressed. �H� output when STOP key is pressed. Cover detection. �L� input when the cover is OPEN. �L� output when CD is ON. �L� output when power is off. MUTE output. Description

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