Haier L32F6 Service Manual

9-2. Power Supply Board Failure Check.
State:No picture
First,check cables which connect with PSU,then check as follows
Check input voltage
voltage: +5VSB----POWER ON(2.6V) -----+12V
State:No sound
First,check cables which connect with PSU,then check as follows
1) Check input voltage as NO picture
2) Check speaker output
)LUVWFKHFNVSHDNHUDQRGHDQGFDWKRGHFRQ¿UPVSHDNHUVKRUWRUQRW,IVKRUWUHSODFH
speaker.
6HFRQGFKHFN&1ZLWKRVFLOORJUDSKFRQILUPZDYHRXWSXWRUQRW
P_ON/OFF
STB5V
DGND
DGND
STB5V
PWR_12V
DGND
PW_SAVE_LV1
C6
1uF
C6
1uF
R22KR22K
D53
6.2V
D53
6.2V
R1 100R1 100
TP55TP55
Q1
2N3904
Q1
2N3904
1
2 3
TP56TP56
+
CE112
220uF/25VS
+
CE112
220uF/25VS
R503 4.7kR503 4.7k
R4
4.7K
R4
4.7K
CN18
H7-25A
CN18
H7-25A
1
1
2
2
3
3
4
4
5
5
6
6
7
7
TP57TP57
#POWER_ON
Initial Condition:L
H: Power OFF
L: Power ON
R+
AMP-LINN
AMP-LINP
HVP1
HVP2
VP
VP
VP
AMP-RINP
AMP-RINN
HVP2
L+
HVP1
MUTE_8932
DGND
DGND
DGND
DGND
DGND DGND
DGND
DGND
DGND
DGND
DGND
VPA
DGND
DGND
DGND
DGND
DGND
C347&C350
4 ohm:1000nF
8 ohm:470nF
R545
10
R545
10
C431
0.1uF/50V
C431
0.1uF/50V
R541
22R
R541
22R
CE99 47uF/16VCE99 47uF/16V
R542 39kR542 39k
C419
0.1uF/50V
C419
0.1uF/50V
TP75TP75
L149 47uHL149 47uH
R596
10k
R596
10k
R546
22K
R546
22K
C429 0.1uF/50VC429 0.1uF/50V
C434 100pF/50VC434 100pF/50V
TP78TP78
C428
15nF/50V
C428
15nF/50V
TP76TP76
CE98
1000uF/35V
CE98
1000uF/35V
R539
10
R539
10
C430
0.1uF/50V
C430
0.1uF/50V
C425 0.1uF/50VC425 0.1uF/50V
C427 0.1uF/50VC427 0.1uF/50V
C421
0.1uF/50V
C421
0.1uF/50V
C424
15nF/50V
C424
15nF/50V
CE97
1000uF/35V
CE97
1000uF/35V
C432
0.1uF/50V
C432
0.1uF/50V
C420
0.1uF/50V
C420
0.1uF/50V
C423
0.1uF/50V
C423
0.1uF/50V
C433
0.1uF/50V
C433
0.1uF/50V
R538
22K
R538
22K
R547
22R
R547
22R
R544 NC/0RR544 NC/0R
U37
TDA8932
U37
TDA8932
VSSD/HW1
1
IN1P
2
IN1N
3
DIAG
4
ENGAGE
5
POWER UP
6
CGND
7
VDDA
8
VSSA
9
OSCREF
10
HVPREF
11
INREF
12
NC
13
IN2N
14
IN2P
15
VSSD/HW2
16
VSSD/HW3
17
VSSD/HW4
32
DREF
18
HVP2
19
VDDP2
20
BOOT2
21
OUT2
22
VSSP2
23
STAB2
24
STAB1
25
VSSP1
26
OUT1
27
BOOT1
28
VDDP1
29
HVP1
30
OSCIO
31
GND
33
C418 100pF/50VC418 100pF/50V
TP77TP77
CN26
H_2.5_4
CN26
H_2.5_4
1
2
3
4
C422
330nF/63V
C422
330nF/63V
L150 47uHL150 47uH
C435
330nF/63V
C435
330nF/63V
R543 39kR543 39k
C426 0.1uF/50VC426 0.1uF/50V
Service Manual
Model No.:
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59

Haier L32F6 Specifications

General

Screen Size	32 inches
Display Technology	LCD
HDMI Ports	2
USB Ports	1
Refresh Rate	60 Hz
Aspect Ratio	16:9
Resolution	1366 x 768