![background image](http://html.mh-extra.com/html/haier/hl26atb/hl26atb_service-manual_136743041.webp)
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
Debug Port
RS-232 In
S0
S1
N
0
0
1
0
1
2
3
0
0
1
1
1
A
B
A
B
RS232
1.0
<Title>
Custom
16
25
Thursday, November 02, 2006
Title
Size
Document Number
Rev
Date:
Sheet
of
TXDO
RXDI
SW#
RXDI
TXDO
232_EN#
232_EN#
D/TXD1
D/RXD1
D/TXD2
D/RXD2
POWER_ON
23,24
POWER_ON
23,24
TV_Micro_TXDAA 24
TV_Micro_RXDAA 24
TV_Micro_TXDA
15,19
TV_Micro_RXDA
15
TWIRE_RXDB
15
TWIRE_TXDB
15
TWIRE_RXDC
15
TWIRE_TXDC
15
MCU_3.3V
MCU_3.3V
MCU_3.3V
MCU_3.3V
+3.3V
+3.3V
+3.3V
+3.3V
H1
Screw_Hole
1
R404
0R
C551
22pF/50V/NPO_DNI
J29
DSUB9P/FHD
1
6
2
7
3
8
4
9
5
11
10
L33
0.15uH/0.25A/0805
H3
Screw_Hole
1
C243
100nF
R373
4.7K/1%
R0603
C458
22pF/50V/NPO_DNI
C242
100nF
Q29
2N7002LT1
G
D
S
D45
BAV99L
1
3
2
C459
22pF/50V/NPO_DNI
H2
Screw_Hole
1
U9
SN74LV4052ADR
5
15
2
12
14
1
7
13
3
11
4
10
6
16
8
9
B1
A2
B2
A0
A1
B0
VEE
AN
BN
A3
B3
S0
OE
VCC
GND
S1
R374
4.7K/1%_DNI
R0603
D62
BAV99L
1
3
2
C245
100nF
L42
0.15uH/0.25A/0805
H4
Screw_Hole
1
E16
MAX3232/SP3232ECY
1
3
4
5
2
6
15
11
12
14
13
10
7
9
8
16
C1+
C1-
C2+
C2-
V+
V-
GND
T1IN
R1OUT
T1OUT
R1IN
T2IN
T2OUT
R2OUT
R2IN
VCC
R402
0R
D46
BAV99L
1
3
2
L43
0.15uH/0.25A/0805
C552
22pF/50V/NPO_DNI
C246
100nF
R403
0R
Q30
2N7002LT1
G
D
S
C244
100nF
C530
100nF
D63
BAV99L
1
3
2
L32
0.15uH/0.25A/0805
Summary of Contents for HL26ATB
Page 1: ...1 HL26ATB ...
Page 4: ... 4 Safety Precautions ...
Page 5: ... 5 ...
Page 6: ... 6 三 Images of Module and Circuit Boards a Signal flow chart ...
Page 7: ... 7 b Printed Circuit Digital Board Main Board AV Board Main board AV board ...
Page 8: ... 8 三 Key IC Description Trouble Shooting Guide 1 Key IC Description 1 ATI240 ...
Page 9: ... 9 2 MSP 4440 ...
Page 10: ... 10 2 Trouble Shooting Guide ...
Page 11: ... Signal Flowing Chart ...
Page 13: ... 13 ...
Page 14: ... 14 ...
Page 15: ... 15 ...
Page 16: ... 16 ...
Page 17: ... 17 ...
Page 18: ... 18 ...
Page 19: ... 19 ...
Page 20: ... 20 ...
Page 21: ... ...
Page 22: ... 22 ...
Page 24: ... 24 2 Others ...
Page 25: ... 25 ...
Page 26: ... 26 ...
Page 27: ... 27 Circuit Diagram ...