Circuit Voltage Chart - LG XA66 Service Manual

CIRCUIT VOLTAGE CHART

1. ICs
Pin No. Spec. Input: 80 V, 60 Hz
IC301 PT6324-Q (DISPLAY DRIVE IC)
8(VDD) 2.7~5.2V 3.24
IC501 XC6214-3.3V (Regulator IC)
2(Vin) 4.3~+6V 5.19
3(Vout) 3.234~3.366V 3.27
IC 504 TA7291 (MOTOR DRIVE)
2(VCC) 4.3~+6V 5.1
IC600 74LVC2G04 (DUAL INVERTER)
5(VCC) 1.6-5.5V 3.24
IC601 IC42S16100E (SDROM)
1(VDD) 3.0~3.6V 3.22
7(VDDQ) 3.0~3.6V 3.22
13(VDDQ) 3.0~3.6V 3.22
25(VDD) 3.0~3.6V 3.22
38(VDDQ) 3.0~3.6V 3.22
44(VDDQ) 3.0~3.6V 3.22
IC602 V809R (RESET IC)
2(RESET) 2.7~3.6V 3.22
3(VCC) 2.7~5.5V 3.22
IC603 MLC9800 LQFP-128 (Audio decode IC)
2(AVDD) 3.0~3.6V 3.22
30(VDD) 3.0~3.6V 3.22
51(VDD) 3.0~3.6V 3.22
84(VDD) 3.0~3.6V 3.22
113(VDD) 3.0~3.6V 3.22
115(VDD) 3.0~3.6V 3.22
13(VDD) 1.2±0.2V 1.2
47(VDD) 1.2±0.1V 1.2
94(VDD) 1.2±0.1V 1.2
120(VDD) 1.2±0.1V 1.2
122(VDD) 1.2±0.1V 1.2
124(VDD) 1.2±0.1V 1.2
IC604 WM8782 (ADC IC)
5(DVDD) 2.7~3.6V 3.22
13(AVDD) 2.7~5.5V 3.22
IC605 XE6206-1.2V SOT-89 (Regulator IC)
2(Vin) 1.5-6V 3.24
3(Vout) 1.2±2% 1.2
IC606 EON 8M FLASH SOP-8 (FLASH)
8(VCC) 2.7~3.6V 3.22
IC901 FSDM311 (SMPS PWM)
3(VCC) 5-20V 9.6
6,7,8(Drain) ≤650V 11~68
IC902 7M0880 5PIN DIP (SMPS PWM)
1(Drain) ≤800V 105
Input: 288 V, 50 Hz Pin No. Spec.
3(VCC) 8-30V
3.24 TU101 KST-MW004MV1-S65PW (FM/AM MODE) (Tuner Module )
1(VDD) 5V+/-0.5
5.19 U101 KST-MK000FH0-806A (FM MODE) (Tuner Module )
3.27 1(VDD) 3V+/-0.3
U101 KST-MK100FH1-806A (FM/RDS MODE) (Tuner Module )
5.19 1(VDD) 3V+/-0.3
U502 BU9543KV (QFP-64P) (RF AMP+SSP+DSP)
3.24 1(AVDD) 2.7~3.6V
17(DVDD) 2.7~3.6V
3.24 33(DVDD) 2.7~3.6V
3.24 47(DVDD) 2.7~3.6V
3.24 53(DVDD) 2.7~3.6V
3.24 58(DVDD) 2.7~3.6V
3.24 26(VDD) 1.6~2.0V
3.24 37(VDD) 1.6~2.0V
U503 BD3490FV (SOUND CONTROL)
3.24 24(VCC) 4.7-9.5V
3.24 U504 BA5826FP (MOTOR DRIVE IC)
21(VCC) 4.5~9V
3.24 22(VCC) 4.5~9V
3.24 U702 TDA7292 (AMPLIFIER IC)
3.24 1(-Vs) -8~-33v
3.24 3(+Vs) 8~33v
3.24 Play≤+Vs-6V
5(Mute/Standby)
Standby≤2.5V
3.24
1.2
1.2
1.2
1.2
1.2
2. TRs
1.2
Pin No.
3.24
3.24 1(E)
2(B)
3.24 3(C)
1.2
1(E)
3.24 2(B)
3(C)
9.6
291 1(E)
2(B)
281 3(C)
3-37
Input: 80 V, 60 Hz Input: 288 V, 50 Hz
13.92 14.8
5.184 5.184
3.25 3.24
3.25 3.24
3.27 3.26
3.27 3.26
3.27 3.26
3.27 3.26
3.27 3.26
3.27 3.26
1.8 1.8
1.8 1.8
7.7 7.7
5.09 5.1
5.09 5.1
-20.5 -20.5
20.5 20.5
Play:11V Play:11V
Standby:0V Standby:0V
Spec. Voltage
Q510 2SB772 (PNP)
VCBO≥-30V 5.13/5.1
VCEO≥-25V 5.1/5.1
VEBO≥-6V 4.4/4.4
Q517 2SB772 (PNP)
VCBO≥-30V 5.1/5.1
VCEO≥-25V 3.3/3.3
VEBO≥-6V 4.4/4.47
Q901 S8050 (NPN)
VCBO≤30V 30.5/30.3V
VCEO≤25V 29.8/29.6V
VEBO≤6V 30.4/30.29V
3-38
Pin No. Spec.
Q902 S8550 (PNP)
1(E) VCBO≥-40V
2(C) VCEO≥-30V
3(B) VEBO≥-5V
Q905 S8550 (PNP)
1(E) VCBO≥-40V
2(C) VCEO≥-30V
3(B) VEBO≥-5V
Q906 S8050 (NPN)
1(E) VCBO≥-40V
2(C) VCEO≥-30V
3(B) VEBO≥-5V
Q908 S8050 (NPN)
1(E) VCBO≤30V
2(B) VCEO≤25V
3(C) VEBO≤6V
Q909 S8050 (NPN)
1(E) VCBO≤30V
2(B) VCEO≤25V
3(C) VEBO≤6V
Q910 S8550 (PNP)
1(E) VCBO≥-30V
2(B) VCEO≥-25V
3(C) VEBO≥-6V
Q911 S8050 (NPN)
1(E) VCBO≤30V
2(B) VCEO≤25V
3(C) VEBO≤6V
Q912 S8050 (NPN)
1(E) VCBO≤30V
2(B) VCEO≤25V
3(C) VEBO≤6V
Q921 S8050 (NPN)
1(E) VCBO≤30V
2(B) VEBO≤6V
3(C) VCEO≤25V
IC903 IC431
1(R) Vra:2.44~2.55V
2(A) GND=0V
3(C) Vrc:2.5~36V
IC905 IC431
1(R) Vra:2.44~2.55V -18.00/17.86V
2(A) Va:20-21V -20.55/-20.54V
3(C) Vrc:2.5~36V
Voltage
12.6/12.2V
11.35/11.3V
12.03/12.04V
12.08/12.04V
11.19/11.17V
12.02/12V
0/0V
0.67/0.66V
0.04/0V
0/0V
0.66/0.66V
0.04/0.04V
0/0V
0/0V
0.66/0.65V
12.04/12.04V
11.2/11.22V
12.04/12.02V
5.15/5.15V
5.9/5.9V
5.2/5.2V
0/0V
0/0V
0.65/0.65V
0/0V
0/0V
5.3/6.48V
2.48/2.45V
0/0V
4.06/4.01V
0.96/0.86V