Service manual

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IC DESCRIPTION(U-COM : I701)
PIN No PIN NAME TYPE I/O DISCRIPTION REMARK
1 P10/S00 DATA-I I Data in from DVD
2 P11/S01 DATA-O O Data out to DVD
3 P12/SCK0 CLK-O O CLOCK out for DVD
4 P13/PWM1 DVD-SEL(L) O Chip(DVD) Select
5 P14/PWM2 DVD-RESET(H) O Reset DVD
High : DVD Reset, Low : Normal MODE
6 P15/PWM3 EEPROM_WR(H) NC
7 P16 DEAWOO(H) I Remocon Option
High : DAEWOO Format, Low : buyer Format
8 P17/PWM TV(H) NC
9 DVss VSS(-) GND
10 XT1 XT1 I 32.768 KHz X-TAL
11 XT2 XT2 O OSD OSCILLATE
12 Vdd VDD(+) +5V(
10%)
13 P84/AN4 KEY1-IN I MENU, VOL+, VOL-, CH+, CH-, POWER 8Bit A/D
14 P85/AN5 KEY2-IN I TV/AV, REW, PLAY, FF, STOP/EJECT 8Bit A/D
15 P86/AN6 AGC-IN I
AGC CONTROL OUTPUT VOLATGE FROM LA76835 8Bit A/D
( DC 0 ~ Vdd)
16 P87/AN7 AFT-IN I
AFT CONTROL OUTPUT VOLATGE FROM LA76835 8Bit A/D
DC 0 ~ Vdd. (Center : 2.5V)
17 /RES RESET(L) I SYSTEM Reset(Hardware Reset) INPUT
ACTIVE Low
18 FILT FILTER I/O Filter terminal for PLL
19 CVIN CVIN-IN I Video signal input terminal for CAPTION 1Vpp In
20 /VS V-Sync(L) I OSD VERTICAL SIGNAL INPUT
DC 0 ~ 5V Pulse
Active Low
21 /HS H-Sync(L) I OSD HORIZONTAL SIGNAL INPUT
DC 0 ~ 5V Pulse
Active Low
22 R OSD R O OSD R OUT
23 G OSD G O OSD G OUT
24 B OSD B O OSD B OUT
25 BL OSD BL I OSD BLANK OUT
26 I OSD I NC
27 P60/SDA0 DATA(ROM) I/O EEPROM I2C Data IN/OUT
28 P61/SCLK0 CLK(ROM) O EEPROM I2C Clock OUT
29 P62/SDA1 DATA(T/M/MSP) I/O Tuner/LA76835/MSP I2C Data IN/OUT
30 P63/SCLK1 CLOCK(T/M/MSP) O Tuner/LA76835/MSP I2C Clock OUT
31 P70/INT0 SW-1 O Input Select control Signal
9-2. PIN DISCRIPTION