Haier HLA42K2 Service Manual

Service Manual
Model No.:
52
KEY0-in
PM_RESET
P-ON/OFF
PM_RESET
MCU_IR
SCL
SDA
MCU_IR
IR-in
LED_BLUE
6M69_STATUS
P-ON/OFF
3.3VSTB_MCU
3.3VSTB_MCU
3.3VSTB_MCU
5VSTB_MCU
3.3VSTB_MCU
3.3VSTB_MCU
+3.3AVDD
5VSTB_MCU 5Vstb
3.3VSTB_MCU3.3VSTB_MCU 5VSTB_MCU
KEY0-in3
6M69_STATUS
SCL 3
SDA 3
LED_RED
IR-in 3
PM_RESET
LED_BLUE
NEC debug
3.9
ো᳈ᬍ
,
㾷އ
Q40 MOS
ϡ㛑݇ᮁ䯂乬
⬅
3.3VSTB_MCU
Ϟᢝ᳈ᬍЎ
5VSTB_MCU
Ϟᢝ
R77
1K
R77
1K
R178 100K R178 100K
L9
NC/FB
L9
NC/FB
R169 1KR169 1K
R227
1K
R227
1K
CA48 10uF CA48 10uF
R290
NC/10K
R290
NC/10K
1
2 3
Q58
3904
Q58
3904
R179
100
R179
100
C141 0.1uF C141 0.1uF
R172
20K
R172
20K
3
2
1
4
ADJ
OUT
IN
U7 AMS1117-3.3
ADJ
OUT
IN
U7 AMS1117-3.3
L21 FB L21 FB
R177 100 R177 100
R174 4.7K R174 4.7K
R168 10K R168 10K
R88 4.7K R88 4.7K
R78 4.7K R78 4.7K
R238 10K R238 10K
1
2 3
Q55 3904 Q55 3904
1
3 2
Q32 3906 Q32 3906
R161
1K
R161
1K
CA47 2.2uF CA47 2.2uF
C174 100pF C174 100pF
C83 0.1uF C83 0.1uF
KEY
1
ON/OFF
2
GND
3
VCC
4
RESET
7
LED-G
8
LED-R
9
IR
10
SCL
5
SDA
6
U14 PD78F9202 U14 PD78F9202
R229 100K R229 100K
R249 10KR249 10K
1
2 3
Q56 3904 Q56 3904
C172 0.1uF C172 0.1uF
R170 100K R170 100K
1
2 3
Q57
3904
Q57
3904
R175 100 R175 100
3
1
2
Q40
AO3401
Q40
AO3401
R233 100R233 100
R173 10K R173 10K

Haier HLA42K2 Specifications

General

Brand	Haier
Model	HLA42K2
Category	LCD TV
Language	English