Sharp LC-37D90U

LC-37D90U
5 – 29
2.8. RH-iXB345WJZZQ (ASSY: IC2002)
Monitor microcomputer
• Block Diagram [RH-iXB345WJZZQ (ASSY: IC2002)]
• Pin Function [RH-iXB345WJZZQ (ASSY: IC2002)]
Pin No. Pin Name I/O Pin Function
1 OPC I Brightness sensor.
2 CCKM I Cable check.
3 AVCC --- A/D conversion reference voltage (3.3V).
4 X2 O Oscillator (32.768kHz) connected.
5 X1 I Oscillator (32.768kHz) connected.
6 VCL --- Internal step-down power terminal.
7 RESET I Reset signal input.
8 TEST --- Not used (VSS pull-down).
9 VSS --- GND.
10 OSC2 O Oscillator (10.00MHz) connected.
11 OSC1 I Oscillator (10.00MHz) connected.
12 VCC --- 3.3V power supply.
13 NMI I FLASH rewriting.
14 F_MODE2 I Terminal for emulator connection.
15 F_MODE3 I Terminal for emulator connection.
16 F_MODE4 I Terminal for emulator connection.
17 LVDS_PD1 O LVDS power control-1.
18 LVDS_PD2 O LVDS power control-2.
19 LED_ING O Automatic adjust line switching.
20 LED5(OPC) O IC2 reset.
21 LED4(YOYAKU) O IC3 reset.
22 LED3(OSHIRASE) O H sync presence/absence judge.
23 LED2(POWER_LED) O Monitor power red LED control.
24 LED1(POWER_BLUE) O Monitor power green LED control.
25 IREM I Remote control signal input.
26 CSEN1 I AVC momentary power failure detection.
27 CSEN2 I Start request notice from AVC.
28 SR_UP I AVC_BU5V line detection.
29 SCL_M O I2C clock Line (I2C ch0).
30 SDA_M I/O I2C data Line (I2C ch0).
31 DDC_POW I DVI Connector check.
32 POW_CHK2 --- Not used (3.3V pull-up).
33 POW_CHK1 --- Not used (3.3V pull-up).
34 POWDTC_M I LCD PWB power monitoring.
35 STBY_SW I Monitor standby switch input.
36 MAIN_SW I Main power switch input.
37 SCL2_M O Control of I2C clock line (I2C ch1) at AVC side.
38 SDA2_M I/O Control of I2C data line (I2C ch1) at AVC side.
39 TXD_M O Communication data output (MONI -> MAIN).
40 RXD_M I Communication data input (MAIN -> MONI).
41 REQ I Return request to main.
42 TVPOW4 O LCD TOP PWB 3.3V power control.
43 LED_IND O Not used.
44 LFB_ERR I Not used.
45 CS_ERR I CS control power check terminal.
46 POW_ERR I A_D3.3V line check terminal.
47 L_FL_ERR I Backlight error detection.
48 VSH_IN I VSH power error detection.
49 FAN_ERR I FAN Error detection.
50 VSS --- GND.
51 PS_ON O AVC main regulator control signal.
52 TVPOW O Monitor main regulator control signal.
53 FRAME I FRAME.
54 TMDS_RST O TMDS reset control.
55 FAN_CONT O FAN control.
56 W_PROT_M O Microprocessor EEPROM write protect control.
57 IC1_CONF O Gamma table read request.
58 IC1_DONE I Gamma tabled end detection.
59 MODE1 I Input signal state detection.