AIWA HSTX706
Manual de Servicio

LCD DIAGRAM
LCD201 LCD, HS ASSY (BAND/TU)

IC DESCRIPTION
IC, TC9318FB-046
Pin No. 1~3 4 ~ 22 23 ~ 26 27 ~ 30 31 ~ 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 PinName COM1 ~ COM3 S1 ~ S19 S20/KR3 ~ S23/KR0 K0 ~ K3 T0 ~ T2 T3 AM/FM MSP MSP TV OUT DES TAPE IN POWERCHECK REMOTE POWER SW HOLD BUZZER MUTE TS WAKE UP IF IN TU OUT PLL OUT GND FM IN AM IN VDD RESET XOUT I/O XIN VXT VLCD C1,C2 VEE Power supply for crystal oscillator. Reference voltage for LCD driver. (Not used) Voltage doubler boosting. Constant 1.5V for LCD driver. Crystal oscillator pin. I/O O O I O O O O O O I I I I O I O O I I O O I I I LCD common output. LCD segment output. Not used. Key matrix input. Key return timing output. Key return timing output. (Not used) "H": FM/TV/Weather, "L": AM. The output port is used for Super-Bass On/Off. This output port is used for MSP switch. (Not used) "H": TVH or Weather band. These two ports combined with K0 ~ K3 determine the destination. "H": Tape ON, "L": Tape OFF. A/D in for power supply voltage level. A/D in for remote controller. "H": Power OFF, "L": Power ON. "H": Hold OFF, "L": Hold ON. Buzzer output. (Not used) Mute output. Microcontroller test terminal (Not used). Wake up the system from memory back-up mode. IF frequency input. "L": Tuner ON. Phase comparison output. GND. FM oscillator signal input. AM oscillator signal input. Supply voltage terminal. System reset input. Description

IC BLOCK DIAGRAM
IC, TK11823MTL

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