LG HB954WA Service Manual page 81

2. AMP BOARD
Type Pin
IC701, IC702, IC703, IC704 AMP IC
TAS5352 VDD: 21 VDD: +10.8 ~ +13.2V
TYPE: 44P HTSSOP GVDD: 1,22,23,44 GVDD: +10.8 ~ +13.2V
VENDER: TEXAS INS. PVDD: 40,41,32,26,27 PVDD: ~ +37V
IC709 PWM IC
PS9830B IO_VDD: 4,10,22,29, IO_VDD: +2.97~3.63V
TYPE: 100P TQFP 39,47,56,65,72,94 DVDD: -0.3 ~ 5.5V
VENDER: PULSUS DVDD: 13,34,42,66,
80,91
3. FRONT BOARD
Type Pin
IC301 VFD IC
MC3501 VDD: 9,51 VDD: +2.7 ~ +5.5V
TYPE: 48P LQFP
VENDER: ABOV
IC302, IC3F1 LDO
LM39102 VIN: 2 VIN: +2.25 ~ +16V
TYPE: 5P TO-252
VENDER: TAEJIN
IC3P1 NOISE Isolation IC
NJM2794 VCC: 4 VCC: +4.3 ~ +13V
TYPE: 10P SSOP14
VENDER: NJRC
IC3A1 TOUCH IC
80C52 VDD: 20 VDD: +1.6 ~ +5.5V
TYPE: 20P SOIC
VENDER: CORERIVER
Vcc/Vdd
Spec ACTUAL measurement
VDD: +12.17
GVDD: +12.10
PVDD: +34.87
IO_VDD: +3.24
DVDD: +1.91
Vcc/Vdd
Spec ACTUAL measurement
VDD: +3.18
VIN: +6.82
VCC: +12.16
VDD: +3.27
2-91
MEMO
2-92