LG MCD23 User Manual

3-59 3-60
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
CIRCUIT VOLTAGE CHART
IC MAIN
IC100 (MICOM)
14 VDD : 4.93 V
40 VDD : 4.93 V
55 VDD : 4.93 V
89 VDD : 4.93 V
IC200 (FUNCTION)
16 VDD : 6 V
7 VEE : 5.86
8 VSS : 5.86
IC801, IC802 (OP AMP)
4 VEE : -11.46 V
8 VDD : 11.6 V
IC103 (EEPROM)
8 VCC : 4.9 V
IC604 (PWM IC)
13 DVDD : 1.71 V
34 DVDD : 1.71 V
IC101 (RESET IC)
1 VCC : 5.18 V
IC102 (RESET IC)
1 VCC : 4.9 V
IC700 (POWER IC)
1 GVDD : 11.92 V
21 VDD : 11.99 V
22 GVDD : 11.92 V
23 GVDD : 11.92 V
26 PVDD :13.37 V
27 PVDD :13.37 V
32 PVDD :13.37 V
35 PVDD :13.37 V
40 PVDD :13.37 V
41 PVDD :13.37 V
44 GVDD : 11.92 V
IC801 (DIGITAL SIGNAL PROCESSORS)
4 AVDD : 3.494 V
6 AVDD : 3.494 V
15 VDD : 1.837 V
29 AVDD : 3.494 V
46 VDD : 1.837 V
50 AVDD : 3.494 V
77 VDD : 1.837 V
81 AVDD : 3.494 V
105 VDD : 1.837 V
115 AVDD : 3.494 V
121 VDD : 1.837 V
124 VDD : 1.837 V
IC802 (SDRAM)
1 VDD : 3.499 V
7 VDDQ : 3.498 V
13 VDDQ : 3.498 V
25 VDD : 3.499 V
38 VDDQ : 3.498 V
44 VDDQ : 3.498 V
IC803 (NOR FLASH MEMORY)
37 VDD : 3.5 V
IC807 (RF AMPLIFIER)
17 DVDD : 3.499 V
33 DVDD : 3.499 V
47 DVDD : 3.499 V
53 DVDD : 3.499 V
PIN NO.
IC808 (MOTOR DRIVER)
7 VCC : 4.97 V
8 VCC : 4.97 V
20 VCC : 4.97 V
IC806 (CMOS)
16 VCC : 3.499 V
IC804 (LDO VOLTAGE REGULATOR)
1 V in : 3.49 V
IC805 (A/ D CONVERTER)
6 VA : 4.999 V
7 VD : 3.5 V
IC301 (KEYBOARD CONTROLLER)
9 VCC : 5.07 V
IC200, IC201 (PRE AMPLIFIER)
6 VCC : 5.68 V
MAIN_CPA
C109 4.93 V
C111 4.9 V
C116 4.9 V
C201 8.61 V
C206 1.566 V
C207 1.572 V
C639 1.923 V
C645 1.919 V
C647 3.472 V
C665 1.924 V
C690 0.019 V
C703 14.96 V
C707 11.99 V
C725 11.97 V
C741 14.96 V
C803 2.492 V
C805 2.49 V
C810 1.37 V
C810 0 V
C811 11.61 V
C825 5.99 V
C827 0 V
C836 9.11 V
C846 0 V
C848 0 V
C852 1.7 V
C853 1.7 V
C859 1.7 V
C860 1.7 V
CD-CAP
C824 3.5 V
C834 3.5 V
C835 4.99 V
C844 4.98 V
C847 0.746 V
C849 3.49 V
C861 3.498 V
C863 3.499 V
C864 1.75 V
C867 1.749 V
C8A5 3.499 V
C8A7 3.499 V
C8A8 3.498 V
C8A9 3.49 V
C8E6 3.497 V
VOLT
PIN NO.
VOLT
PIN NO.
VOLT
PIN NO.
VOLT
C8F4 5.3 V
C8F9 4.98 V
FRONT_CAP
C307 4.79 V
C308 4.89 V
C311 -20.1 V
C313 -23.5 V
C355 -26.6 V
DECK_CAP
C203 1.81 V
C203 0.9 V
C204 1.81 V
C205 0 V
C208 0 V
C209 8.16 V
C213 0 V
C216 1.81 V
C217 1.82 V
C219 5.68 V
C233 1.82 V
C238 0 V
C254 1.8 V
C255 0 V
C258 0 V
C263 0 V
C266 1.81 V
C267 1.83 V
CONNECTOR POWER
PN201
1 0 V
2 8.54 V
3 0 V
4 0 V
5 0 V
6 0 V
7 0 V
8 0 V
9 0 V
10 0 V
PN7303
1 0 V
2 0 V
3 0 V
PN7904
1 -19.8 V
2 -23.58 V
3 -26.64 V
4 0 V
5 5.59 V
6 5.53 V
7 3.73 V
8 3.764 V
PN7905
1 0 V
2 -11.96 V
3 12.01 V
4 0 V
5 8.17 V
6 0 V
7 4.9 V
8 5.23 V
9 3.51 V
10 3.51 V
11 0 V
12 0 V
13 14.95 V
14 14.95 V
15 14.95 V
PN7501
1 1 2 V
2 8.17 V
3 0 V
4 4.99 V
5 4.99 V
6 2.49 V
7 0 V
8 2.49 V
9 0 V
10 0 V
11 3.5 V
12 3.5 V

LG MCD23 Specifications

General

Brand	LG
Model	MCD23
Category	Stereo System
Language	English