Circuit Voltage Chart - LG LHB976 Service Manual

CIRCUIT VOLTAGE CHART

1. ICs
Description Location Division Voltage(V)
SMPS
3.7VA -
Assembly
3V3_Micom - 3.45
P_CTRL - 3.247
Main
P_Sense - 3.451
3.8VA - 3.76
Vin 3.31
DSP_1V8 IC405
Vout 1.81
EN 3.235
Vcc_5V IC154 Vin 5.68
Vout 4.98
EN 3.439
5V_Loader
SIC704 Vin 6.57
/OPU
Vout 4.95
VD 3.309
CS5346 IC200
VA
VA 3.309
CS8422 IC201
VL
EN 3.429
Wi-Fi 5V IC155 Vin 5.69
Vout 5.2
Vin 3.29
HDMI_1V8 IC803
Vout 1.8
EN(P_CTRL) 3.291
HDMI_3V3 IC802 Vin 1.818
Vout 3.29
Servo_VREF Vout 3.52
Vin 1.279
Vout 1.51
1V5 DDR
IC151 EN 3.428
3A
FB 0.792
Vcc 12.8
Vin 12.79
Vout 1.194
1V2 Core
IC150 EN 3.43
4A
FB 0.794
Vcc 12.79
Vin 3.31
1.8 Vcc IC405
Vout 1.81
Location Division Spec(V)
Description
Vcc 2.0~5.5
-
IC204,IC205,
74HCT244 Vi 0~5.5
IC404,IC811
Vo Vcc
TVDD 3.14~3.47
DVDDIO 3.14~3.47
TXPLVDD 1.71~1.89
ADV7622 IC801
CVDD 1.71~1.89
TXPVDD 1.71~1.89
TXAVDD 1.71~1.89
VDD12 1.14~1.26
PLLVDD 1.14~1.26
XTAL_
1.14~1.26
VDD12
BCM7633 IC500 VDD33
3.135~3.465
AVDD33 2.97~3.63
- VDD15
1.425~1.575
CLK27_
2.375~2.75
XVDD25
-
VDD 1.71~1.89
CS495314 IC401 VDDA 3.13~3.46
VDDIO 3.13~3.46
VA 4.75~5.25
VD 3.13~3.47
CS5346_
IC200
ADC
VLS 3.13~5.25
VLC 3.13~5.25
VL 1.71~5.25
CS8422_
IC201 VA
3.135~3.465
DIR
V_REG
3.135~3.465
VDD 3.0~3.6
EM638165T-
IC402
SA-6G
VDDQ 3.0~3.6
VDD
1.425~1.575
K4B2G16468 IC502,IC503
VDDQ
1.425~1.575
VIO
IC506 2.7~3.6
HY27UF082G
VCC
LM1117_ VIN
ADJ TO252 SIC707
Vout
1.8V
LM39102D- IC299 VIN 2.25~16
ADJ
IC102,
M24C16 VCC 1.8~5.5
IC804,IC805
MX-
IC403 VCC 2.7~3.6
25L3205D
NLAS-
IC806,IC807,
B3157D- VCC 1.65~5.5
IC808,IC809
FT2G
Voltage(V) Description Location Division
VCC
3.26
S7127F_
IC103
AUK
3.246 Vout
3.257 THS7365 IC251 Vs+
VIN
3.26
TJ3966DP IC802
3.26 Vout
UP-
1.848
IC101 VDD
D78F11645
1.81
VM1
1.81
VM2
1.81
SIC704
R2A30209SP
VM3
1.192
5VCC
1.195
LB1848M SIC705 VIN
1.192
LM358 SIC706 VCC
3.278 LM1117_
IC803 VIN
TO252
3.278
MM1507X-
1.491 IC250 VCC
NRE
2.539
NJM2505 IC254 V+
IC203 V+
NJM2794RB2
1.817
TJ3966DP IC802 VIN
3.247
AOZ1037 VIN
IC150,IC151
3.247
TJ3965D-
4.94 VIN
IC152,IC153
ADJ
3.252
VA
3.245
CS5340 IC206 VD
3.248
VL
3.256
LM39102D-
IC154,IC155 VIN
3.255 ADJ
3.255
Vcc
AZ1117BH-
3.256 IC810 Vi
ADJTRE1
3.256
Vo
1.493
74AH-
IC511 VIN
C244PW+118
1.493
CP2.0B IC509 Vcc
3.257
LM1117_1.8V IC405 VIN
3.258
LM29152RS-
SIC710 VIN
15 12.43 ADJ
8 6.95
5.63
4.76
3.34
4.76
2-173 2-174
2. CAPACITORS
Spec(V) Voltage(V) Location No. Value
0.3~15 3.7
MAIN Board
2.55~2.85 3.26 CA402 100/16V
3~5 4.98 C810 47/16V
2.5~6 3.73
CA102 47/16V
3.3 3.26 CA151 100/16V
CA153 100/16V
1.8~5.5 3.42
CA157 100/16V
7~13.2 12.43
CA160 220/16V
7~13.2 12.43
CA407 10/16V
7~13.2 12.43
CA514 47/16V
4.5~5.5 4.98
CA515 47/16V
2.5~7.5 4.98
CA802 47/16V
3~32 4.98
CA804 100/16V
12 3.268 CA806 220/16V
SC774 100/16V
4.5~13 4.98
SCA701 100/16V
SCA702 33/25V
4.5~9.0 4.98
SCA703 100/16V
4.3~13 4.99
6.5 3.73 SCA704 220/16V
SCA709 22/16V
4.5~16 12.67
FRONT Board
6.5 3.73
C307 47/16V
3.1~5.25 4.98
C309 220/16V
3.1~5.25 3.34
C3A1 100/16V
1.5~5.25 3.34
AMP Board
C602 100/16V
2.25~16 5.64
C606 10/16V
1.5~10 3.35
C607 10/16V
12 3.26
C608 10/16V
1.2~3.36 1.917
C663 100/16V
2.0~5.5 3.35
C664 220/16V
2.8~3.6 3.34
C665 10/16V
1.5~7 3.35
2.3~26 5.64
(+) (-)
3.31 0
2.005 0
3.395 0
5.88 0
3.308 0
3.69 0
5.87 0
1.818 0
1.499 0
1.499 0
1.819 0
3.288 0
3.7 0
12.51 0
8.18 0
12.51 0
4.98 0
5.87 0
4.98 0
2.995 0
3.384 0
3.469 0
3.422 0
4.93 0
4.94 0
12.12 0
3.42 0
1.252 0
6.555 0