Service manual
MCU
AMP_SHDN
MUTE
SOURCE_SELECT
R41
0402/10K/5%
R43
0402/10K/5%
PC-99 Circuit
YOUT
MCU_VDD
MCU_VDD
GND_POWER
MUTE
R106
0402/4.7K/5%
Q1
2N7002/RoHS1
32
R12
0402/10K/5%
MUTE
R32
0402/10K/5%
MCU_VDD
Q3
2N7002/RoHS
1
32
GND_POWER
GND_POWER
Q5
2N7002/RoHS
1
32
DVI_HPD
+ 0.8V -
+ 0.24V -
MCU_VDD
GND_POWER
C16
0805/1u/25V/7
R21
0402/1K/5%
R23
0402/10K/5%
綼
MCU
+ 0.79V -+ 0.79V -
INV_ON/OFFINV_ON/OFFINV_ON/OFFINV_ON/OFFINV_ON/OFFINV_ON/OFF
R137
0402/1.5K/5%
R136
0402/100R/1%
R138
OPEN/0402/10M/5%
INV_ON/OFF
Q10
BSS84
1
3 2
GND_POWER
MCU_VDD
DCDC_ON/OFF
RESET_MCU
R42
0402/10K/5%
R47
OPEN/0402/1M/5%
R46
BK1608HM121-T
R38 0402/22R/5%
PANEL_ON/OFF
R115
0402/3K/1%
R34 0402/22R/5%
R112
0402/2.2K/5%
D14
BAV70W/RoHS
1
2
3
C21
0402/22p/50V/N
D28
1N4148WS
1 2
RTD 2120L
48-pin
LQFP
U3
RTD2120L-LF/RoHS
NC
6
NC
7
HSDA1/TXD/P3.1
8
P3.3/INT1
10
P6.3/AD3
23
P6.4
24
P3.4/T0
11
P6.0/AD0
20
VSS
17
VCC
41
P1.3
37
P6.5
25
VSYNC
28
NC
18
NC
29
NC
30
NC
31
P5.5/PWM5
1
P5.6/HSCL2
2
P5.7/HSDA2
3
RST
4
HSCL1/RXD/P3.0
5
P3.2/INT0
9
P3.5/T1
12
X1
16
P7.6/CLKO2
13
P7.7
14
X2
15
NC
19
P6.1/AD1
21
P6.2/AD2
22
P6.6/CLKO1
26
P6.7
27
NC
32
P1.7
33
P1.6
34
P1.5
35
P1.4
36
P1.2
38
P1.1
39
P1.0/ET2
40
NC
42
NC
43
P5.0/PWM0
44
P5.1/PWM1
45
P5.2/PWM2
46
P5.3/PWM3
47
P5.4/PWM4
48
C19
0603/33P/50v/N/RoHS
R39 0402/22R/5%
Q8
BSS84-F
1
32
R26
0402/4.7K/5%
R114
0402/2.2K/5%
Y1
24MHz/RoHS
2
R27
0402/4.7K/5%
R14
0402/10K/5%
D19BAV70W/RoHS
1
2
3
R33 0402/22R/5% R360402/22R/5%
R18
0402/10K/5%
R16
0402/10K/5%
D29
SX34
1 2
R370402/22R/5%
R13
0402/10K/5%
R31
0402/4.7K/5%
D27
1N4148WS
1 2
C20
0402/22p/50V/N
R17
0402/10K/5%
R111
0402/2.2K/5%
C17
1206/10u/16V/Y/RoHS
R44
0402/10K/5%
R116
0402/4.7K/5%
R350402/22R/5%
R113
0402/2.2K/5%
R15
0402/10K/5%
DVI_5V
VGA_5V
DVI_SDA
VGA_SCL
+5V
LED_ORG
DVI_SCL
RTD_SDIO3
VGA_SDA
LED_GRN
INV_ADJ
+5V
GND_POWER
GND_POWER
GND_POWER
GND_POWER
MCU_VDD
MCU_VDD
GND_POWER
MCU_VDD
MCU_VDD
MCU_VDD
MCU_VDD
MCU_VDD
GND_POWER
MCU_VDD
GND_POWER
GND_POWER
+5V
+
C15
100uF/16V
Reference Voltage 3.3V
RTD_SCSB
DC5V_Detect
Detect Power DC 5V
2007.11.13 modify
IICSDA
GND_POWER
R50 NC/0402/100R/5%
R51 NC/0402/100R/5%
SEEPROM
U5
NC/24LC16BT-I/SNG/RoHS
A0
1
A1
2
A2
3
GND
4
SDA
5
SCL
6
WP
7
VCC
8
R48
NC/0402/4.7K/5%
IICSCL
R49
NC/0402/4.7K/5%
MCU_VDD
WP
DC5V_Detect
C22
NC/0402/100n/16V/Y
NVRAM
SOURCE_SELECTSOURCE_SELECT
WP
Serial
Host
Interface
RTD_SCLK
RTD_SCSB
RTD_SCLK
PWR_SW
MENU
IICSCL
IICSDA
GND
KEY_UP
GND
KEY_DOWN
INV_SW
PWR_SW
AUTO_ADJAUTO_ADJ
MENUMENUMENUMENU
SOURCE_SELECT
VOL_PWM
KEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWN
PWR_SW
KEY_UP
AUTO_ADJ
KEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY_DOWNKEY