BenQ PE8700 service manual Benq Corporation

D

C

B

5	4	3		2		1
	+5VS
	+5VS
	C1
	0.1UF
		+12VA				J5
J1
		+12VA	SDA	SDA	1	1
					2
1				SCL		2
					3
2			SCL			3
					4
3	KEY_LED0					4
					5
4	KEY_LED1		FAN_CTRL			5
					6
5	KEY_LED2		DLP_RST			6
					7
6	IR		POWERON			7
					8
7						8
					9
8	BACK_LIGHT_CTRL		DLP_RESETZ			9
					10
9			LAMP_PROTECT			10
					11
10	KEYPAD0					11
					12
11						12
	KEYPAD1		+3VS
12
	KEYPAD2
13
	KEYPAD3					CON_12P
14			+3VS
	KEYPAD4
15
	KEYPAD5
16
	KEYPAD6
17
	KEYPAD7
18
	KEYPAD8	KEYPAD[0..9]
19
	KEYPAD9
20
CON20
				THERMAL CONNECTOR
KEYPAD CONNECTOR

A

BACKLIGHT_CTRL

+3VS

14 12

13

7

U8D

74HC132

11BACK_LIGHT_CTRL

Benq Corporation

Project Code		Model Name			OEM/ODM Model Name
	99.J5877.001		HT720G				NA
Title		MAIN BOARD
Size	PCB P/N		PCB Rev.	Document Number				R ev.
<Size>	48.J5801.S02		S02	99.J5877.R22-C3-304-001				0
Date: Thursday, January 16, 2003				Sheet	2	o f	10
	Prepared By		Reviewed By			Approved By
	ANGEL HU	COLIN CHANG				BEN CHEN