Philips Magnavox 15MF400T/37 Service Manual page 63

15" LCD-TV Color Monitor
5V D401
1N4148
D403
DDC_VDD 1N4148
R409
1M
X401
12MHz
C404
22p
DGND
R422
1k
IR_IN
CN107
1 2
3 4
5V
5 6
7 8
9 10
11 12
C413
6x2PIN/2.0mm 1n
C415 ZD405 C416 ZD406
1n 5.6V 1n 5.6V DGND DGND
DGND
KEYPAD
CONNECTOR
BL_EN
BL_BRIGHT
R406
D402 MCU_VDD 1K
1N4148 C401
1u
C403 DGND
+
C402
0.1u
100u/16V
HSO
R408 100
DGND
RXD
TXD
R410 100
IICSCL
R411 100
IICSDA
AD1
AD0
C405
SEL1
22p
SEL2
R414 R415
2k 2k R416 R417
4.7k 4.7k C406 C407
100p 100p
MCU_VDD 5V
5V
R423
4.7k
VOLUME
R424 C408
6.8k 100p
DGND
MCU_VDD
R428 R429
7.5k 7.5k
AD0
R431 1k
R432 1k AD1
C411 C412
1n 1n
ZD401 ZD402
5.6V 5.6V
DGND
PWR
R437 1k
R438 100 PWR_LEDA
R439 100 PWR_LEDG
R440 100 IR_IN
C414
1n ZD403 ZD404
5.6V 5.6V
DGND
15MF400T/37
5V
R401 R402
1k 4.7k
U402
1 44
PC2/SOGI VSYNCI
2 43
PC1* HSYNCI
3 42
PC0* PC3/PWM0
4 41
RSTB PC4/PWM1
5 40
VCC PC5//PATTO
6 39
PD6 PE1
7 38
GND PE0
8 37
OSCO PC6
9 36
OSCI PC7
10 35
P30/RXD PD0
11 34
P31/TXD PD1/HSYNCO
12 33
P34/T0 PD2/VSYNCO
13 32
P35/T1 PD3/HALFO
14 31
PB3/ADC3/INTE1 PD4/HALFI
15 30
PB2/ADC2/INTE0 PD5/CLMPO
16 29
PB1/ADC1 PA0/PWM2
17 28
PB0/ADC0 PB4/ISCL0*
18 27
PA7/PWM9* PB5/ISDA0*
19 26
PA6/PWM8* PB6/DSCL1*
20 25
PA5/PWM7* PB7/DSDA1*
21 24
PA4/PWM6* PA1/PWM3
22 23
PA3/PWM5 PA2/PWM4
NT68F632A
DGND
R425 R426 5V
15k 4.7k
C409
1u
DGND
MCU_VDD C410
0.22u
U405
AT24C16 DGND
1 8
A0 VCC
WP
2 7
A1 WP
3 6 R435 100 SCL
A2 SCLK
4 5 R436 100 SDA
GND SDA
DGND
63
5V
R403 R404
47k 47k
Q401
MUTE
R405 MMBT3904
100k
1
STANDBY
R407
100k Q402
MMBT3904
1
R441
10k NC
R442
10k NC
MCU_VS
DGND
MCU_HS
RSTN
12M_OSC
VD_PWR_EN
WP
PWR1_EN
PWR2_EN
TUNER_CTRL
TUNER_DET
PWR
VGA_DET
VD_RST
R412
100
DDC_SCL
DDC_SDA
PWR_LEDA
PWR_LEDG R413
100
R418 R419
2k 2k
R420 R421
MCU_VDD
2k 2k
MCU_VDD
R427 NC
M_TXD
M_RXD
NC
R430
5V
CN105
1
R433 100 TXD
2
RXD
3
R434 100
4
4PIN/2.0mm
DGND
TO RS232
CN106
SCL
1
SDA
2
3
3PIN/2.0mm
DGND
TO DEBUG
Title
MFM
Size Document Number
A3 MCU
Date: Wednesday, March 30, 2005 Sheet 4
SCL
SDA
DDC_SDA
DDC_SCL
Rev
0.2
of 12