Chapter 7. Electrical Parts; Block Diagram - Haier 32D3005 Service Manual

Chapter 7. Electrical Parts

7-1. Circuit Diagram
LED-SHORT LED-SHORT
VCC_Panel VCC_Panel
PWM-DIM PWM-DIM
PWM-REF PWM-REF
DB803
VCC_Panel
DVCC
RB816
12V
CB801
GATE
PIN4
GND
PIN1
RB828
CNB1
L
RB141
RB142
RB143
BRO
RB101
RB102
SGND
UB101
1
GND OUT
2
COMP VCC
BRO
!
3
OTP CS
SGND
!
NC
SGND
SGND
6
2
VBL
HSB6
RB807
GATE
RB809
QB809
RB801
PWM-DIM
UB801
PIN1
CB807
PIN8
1 8
VIN PWM GND
2 7
GATE OVP OVP
RB802
RB806
3 6 PIN7
GND COMP RB803
PIN6
4 5
CS FB
PIN4
CB812
CB803
CB805
GND
RB804
PIN5
RB805
RB827
LED-FB
GND
CB804
RB822
DB807
PIN7
QB804
GND
EMI
T3.15AL 250VAC
!
! !
FB1
!
!
1
L
! !
!
S
3
N
LCB1
NC
! !
NTCB1
!
Service Manual
Model No.: 32D3005
TB101
Vbridge
EB1
CB114
SGND
S
BB101
K A
DB106
QB101 CB116
RB106
RB107
RB109
QB102
RB108
6
RB148
5
VCC
RB105
4
SGND
RB110
DB105
ZB101
SGND
!
SGND GND
CYB3
RB812
CB810
LB803
RB813
5
DB801
LB802
NC BB802
BB801
LED+
LB801
NC
RB814
HSB5
NC
NC
RB815
OVP
CB809
QB801
GND
G
LED3 LED1 LED4 LED2
RB808
LED-SHORT
DB805 DB806
RB821
QB802
CB813
NC
RB820
GND
GND
LED-FB
L
LCB3
! !
!
CYB1
Vbridge
NC
DB1 DB2
GND
DB3 DB4
!
LCB2
CYB2
SGND
NC
RB124 RB144
RB125 RB145
RB126 RB146
CB118
RB127 RB147
NC
NC NC NC
A K
VBL
!
DB102
4 4 4 10 10
A K
DB103
5 5 5
RB128
GND
RB129
RB130
CB117
1
2 2 2 7 6 2
BB102
12V
8 3
EB101
DB101
9 9
7
1 1 1 8 10 9
CNB2
GND
4
12V
3
12V
2
1
RB131
12V
GND
RB132 RB135
EB106
! RB133
CB109
NC
CB110
R
UB102
RB137 RB134
GND
LED1 LED2 LED3
RB834 RB835
NC
RB823 RB824
B B B B
DVCC
QB805 QB806 QB807
LED-FB
NC
NC
GND
CNB801 CNB804 CNB805
CNB802 CNB803
NC NC
LED1 LED2 LED1 LED3
LED+ LED3 LED+ LED4 LED+ LED+
LED+
NC NC
CNB806 CNB807
LED+ LED-FB LED4
LED3
LED2
LED1
OVP CIRCUIT
12V
ZB102
NC
RB138
NC
!
NC
NC
GND
LED4
QB808
CNT1
PWM-REF
PWM-DIM
3V3_STB
NC NC
LED-SHORT
LED+