Service manual

10.5. MCU W79E632
B
C
E
*MCU ROM size at
128K byte
Debug port
05 MCU
P130=SOCKET
I2C address A0
1 P 1.1 Power EN ON : L , OFF : H
3 P 2.3 Mute AMP Audio on : H , Audio off : L
5 P 2.5 RCA_AV : H , SCRAT_AV : L
6 P 4.0 PANAL VCC ON : H , PANAL VCC OFF : L
7 P 4.1 PBACK ON : H , PBACK OFF : L
8 P 4.2 VCC+5V_2(STB_5V) ON : H , OFF : L
I2C address A4
For HDCP encode
key storagy
2 P 1.3 Mute Audio on : H , Audio off : L
4 P 2.4 SCART2 : H , SCRAT1 : L
WR
IRRCVR1
VGA_CAB
PWR_SW
MUTE
RD
HWRESET
UCLK
INT
I2C_SCL
ALL_RST
I2C_SDA
I2C_SDA
I2C_SCL
MENU
Y_LED
G_LED
KEY_LEFT(-)
KEY_RIGHT(+)
ON_PBACK
ON_PANEL
MRXD
MRXD
MTXD
KEY_DOWN
PWRON
KEY_UP
ENTER / PWR_SW
MTXD
I2C_SDA
I2C_SCL
MUTE_AMP
G_LED
Y_LED
LED_R
KEY_LEFT(-)
LED_G
IRRCVR1
KEY_DOWN
KEY_RIGHT(+)
ENTER / PWR_SW
MENU
PWR_SW
KEY_UP
AD3
AD1
AD0
AD2
I2C_SCL
5VD
I2C_SDA
RXD
TXD
HPD_CAB
POWER_EN
ALE
I2C_SDA P4,7,8
I2C_SCL P4,7,8
I2C_SDA P4,7,8
VGA_CABP1
HWRESETP2
MUTEP8
ALL_RSTP7,8
POWER_ENP11
RXD P1
ON_PANEL P10
ON_PBACK P11
INTP2
RD P2
WR P2
PWRONP11
I2C_SCL P4,7,8
MUTE_AMP P9
SELVOUT1 P4
SELVOUT2 P4
SELVOUT3 P4
I2C_SDA P4,7,8
I2C_SCL P4,7,8
TXD P1
HPD_CABP1,2
ALEP2
5VD
5VD
5VD 5VD 5VD
5VD
5VD
5VD
5VD
5VD
5VD 5VD5VD
5VD 5VD
R326 0
7531
8642
RP21
RP 4.7KX4
R301
470
Q101
MMBT3906
1
23
C391
100P
Q102
MMBT3906
1
23
R302
470
R303
10K
R304
4K7
R320
220
R307
4K7
7531
8642
RP20
RP 4.7KX4
R323
4.7K
R300
47
R306
0
D107
LL4148
1 2
C380
0.1U
R315
10K
C381
47uF/16V
R316
10K
R313
10K
R312
10K
C392
10uF/16V
R314
10K
R310
4.7K
R309
4.7K
I114
24LC32/DIP/SN
8
2 7
6
54
3
1
VCC
A1 WP
SCL
SDAGND
A2
A0
C389
0.1U
C377 20P
C378 20P
P107
CON_4_2.5mm
1
2
3
4
R319
0
P103
7P_2mm
1
2
3
4
5
6
7
P102
6P_2mm
1
2
3
4
5
6
I113
W79E632A1
MPU
35
21
20
10
14
15
16
17
2
3
4
5
6
7
8
9
43
42
41
40
39
38
37
36
24
25
26
27
28
29
30
31
19
18
32
33
13
11
1
12
23
34
22 44
EA/VP
X1
X2
RESET
INT0/P3.2
INT1/P3.3
T0/P3.4
T1/P3.5
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
RD/P3.7
WR/P3.6
PSEN
ALE/P
TXD/P3.1
RXD/P3.0
P4.2
P4.3/ISP
P4.0
P4.1
GND VCC
R296 4.7K
C376
0.1U
R321
4.7K
R297
1M
X103
24MHz
R318
0
R305 0
R322
4.7K
C3850.1U C3870.1U C382
0.1U
C3860.1U C3830.1U C3840.1U C3880.1U
R317
10K
R308
4.7k
R325
4.7K
R324
4.7K
C390
0.1U
I115
24LC04BT/SN//DIP
8
2 7
6
54
3
1
VCC
A1 WP
SCL
SDAGND
A2
A0
R298
10K
R311
10K
C379
10uF/16V
R327 0
AD[0..3] P2
5VDP1,2,8,10,11
53
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