LG CMS2521F Service Manual

3-39 3-40
CIRCUIT VOLTAGE CHART
1. ICs 2. TRs
Pin No. Spec. Voltage
Q902 S8550 PNP
1(E) VCBO≤40V 10.62/10.62
2(B) VCEO≤25V 11.18/11.17
3(C) VEBO≤6V 0.53/0.52
Q903 SPN3414 NPN
1(E) VDSO≤20V 0.12/0.12
2(B) VGSO≤20V 0.6/0.6
3(C) VGDO≤4.5V 0.08/0.08
Q904 A1267 PNP
1(E) VCBO≥-50V 0.71/0.71
2(B) VCEO≥-50V 0.72/0.72
3(C) VEBO≥-5V 0.01/0.01
Q906 C3205 NPN
1(E) VCBO≤30V 0.66/0.66
2(B) VCEO≤30V 0.70/0.70
3(C) VEBO≤5V 0.04/0.04
Q907 3906 PNP
1(E) VCBO≤40V 0.766/0.765
2(B) VCEO≤40V 0.632/0.632
3(C) VEBO≤5V 0.74/0.74
IC908 WL431(regulator IC)
1(E) REF:2.44~2.55V 2.45/2.45
2(B) GND:0V 0/0
3(C) VZ:-0~37V 20.72/20.68
IC909 WL431(regulator IC)
1 REF:2.44~2.55V 2.45/2.45
2 GND:0V 0/0
3 VZ:-0~37V 4.3/4.3
Location Pin No. Spec. 80 Volt 288 Volt
Input Voltage: 80 V / 60 Hz, 288 V / 50 Hz
IC701 MC4580 (SOUND AMP)
4(VCC-) ±22V -11.55 -11.68
8(VCC+) ±22V 11.78 11.81
U702 AK5358(ADC IC)
6(AVDD) 4.5~5.5V 4.95 4.95
7(DVDD) 2.7~3.6V 3.14 3.14
IC703 LM324A SOP-14P
4(VCC) 2.7~12V 8.265 8.265
IC704 ST339BW (AMPLIFIER IC)
11(VCC1) 5~26V 20.97 20.92
8(VCC2) 5~26V 20.95 20.92
21(VDD) 0.3~4V 3.13 3.12
36(VDD) 0.3~4V 3.13 3.13
TU401 YST990-A3U0 (FM/AM MODE) (Tuner Module )
1(VDD) 5V+/-0.5 5.184 5.184
U400 YST995-H2U0 (FM MODE) (Tuner Module )
1(VDD) 3V+/-0.3 3.3 3.3
U400 YST995-H4C0 (FM/RDS MODE) (Tuner Module )
1(VDD) 3V+/-0.3 3.3 3.3
U512 V809R (RESET IC)
2(RESET) 2.7~3.6V 3.265 3.265
3(VCC) 2.7~5.5V 3.265 3.265
U800 BU9543KV (QFP-64P) (RF AMP+SSP+DSP)
1(AVDD) 2.7~3.6V 3.261 3.261
17(DVDD) 2.7~3.6V 3.261 3.261
33(DVDD) 2.7~3.6V 3.261 3.261
47(DVDD) 2.7~3.6V 3.261 3.261
53(DVDD) 2.7~3.6V 3.261 3.261
58(DVDD) 2.7~3.6V 3.26 3.26
26(VDD) 1.6~2.0V 1.82 1.82
37(VDD) 1.6~2.0V 1.82 1.82
U801 CD5888 (MOTOR DRIVE IC)
21(VCC) 4.5~9V 5.2 5.2
22(VCC) 4.5~9V 5.2 5.2
Location Pin No. Spec. 80 Volt 288 Volt
Input Voltage: 80 V / 60 Hz, 288 V / 50 Hz
IC101 S3F84I9 (MCU IC)
5(VCC) 2.7~3.6V 3.265 3.265
23(VCC) 2.7~5.5V 3.265 3.265
IC101 CM1117 (Regulator IC)
3(VIN) 4.3~12V 7.31 7.28
2(VOUT) 4~0.15V 3.94 3.94
IC104 MFI341S2500 (IP)
5(VCC) 2.7~3.6V 3.265 3.265
IC105 LM39102D (Regulator IC)
2(VIN) 0.3~22V 7.25 7.23
3(VOUT) 0.3~22.3V 4.97 4.97
IC107 MLC9800 LQFP-128 (Audio decode IC)
2(AVDD) 3.0~3.6V 3.265 3.265
30(VDD) 3.0~3.6V 3.265 3.265
51(VDD) 3.0~3.6V 3.265 3.265
84(VDD) 3.0~3.6V 3.265 3.265
113(VDD) 3.0~3.6V 3.265 3.265
115(VDD) 3.0~3.6V 3.265 3.265
13(VDD) 1.2±0.2V 1.21 1.21
47(VDD) 1.2±0.1V 1.21 1.21
94(VDD) 1.2±0.1V 1.21 1.21
120(VDD) 1.2±0.1V 1.21 1.21
122(VDD) 1.2±0.1V 1.21 1.21
124(VDD) 1.2±0.1V 1.21 1.21
IC108 EON 8M FLASH SOP-8 (FLASH)
8(VCC) 2.7~3.6V 3.265 3.265
IC109 IC42S16100E (SDROM)
1(VDD) 3.0~3.6V 3.265 3.265
7(VDDQ) 3.0~3.6V 3.265 3.265
13(VDDQ) 3.0~3.6V 3.265 3.265
25(VDD) 3.0~3.6V 3.265 3.265
38(VDDQ) 3.0~3.6V 3.265 3.265
44(VDDQ) 3.0~3.6V 3.265 3.265
IC111 XC6206-1.2V (Regulator IC)
2(Vin) 2.5~+6V 3.286 3.286
3(Vout) 1.2±0.024V 1.211 1.212
IC301 PT6324 (DISPLAY DRIVE IC)
8(VDD) 2.7~5.2V 3.323 3.323
IC501 MC4580 (HEADPHONE AMP)
4(VCC-) ±22V -11.55 -11.68
8(VCC+) ±22V 11.78 11.81
IC700 BU4052 (SOUND CONTROL)
7(VCC-) 3~18V -5.9 -5.84
16(VCC+) -3~-18V 6.04 6.05

LG CMS2521F Specifications

General

Brand	LG
Model	CMS2521F
Category	Stereo System
Language	English