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4. SMPS PRIMARY SECTION
18200
T803
NO POWER
NO STR VCCSUPPLY SO
NO POWER
FUSE OPEN & STR
DAMAGED DUE TO CHANGE
IN PRIMARY INDUCTANCE
OF SMPS
18110
STR VCC POWER SECTION
D815,R804,R805,R810,R839
STR NO OPR./NO POWER
EXCESSIVE I/P VOLTAGE CAUSES
NO POWER/ NO OSCILLATIONS
18205
LOAD REG. FB SECTION
IC802,Q840,R808,R853,C852
SMPS SEC LOAD REG POOR
INTERMITANT NO POWER
5. SMPS SECONDARY SECTION
STR-
W6554
(S-Vcc)
17V
20V-(10W)
D824
(SFAF504G)
11V
D813
(RU3AMV)
C826
(1000u/16V)
ST_BY 1W
Option
D806
(TVR06J)
C838
(2200u/25V)
SMPS
Trans
FBT
Trans
180V
D505
(RGP10J))
26V
D301
(RGP15J))
112.17V / 395mA
110V
D826
(RU3AMV)
Copyright©2009 LG Electronics.Inc. All right reserved.
Only for training and service purposes.
18103
18105
FILTER SECTION
BRIDGE RECTIFIER
T802(150-F06T)
DB801(TS4B05G)
NO POWER
POWER RADIATION
SAFETY PROBLEM
NO POWER
FUSE OPEN
NO RECTIFIER
18104
DC O/P
RELAY(DEGAUSS)
RL801,Q845,D847
NO MICOM CONTROL
NO DEGAUSS
TO
DEGAUSS
PURITY PROBLEM
COIL
C831
(330u/25V)
(st-by 5V)
KIA78L05BP
IC04
R873
(47/0.5W)
IC806
ST-5V
KIA78R05API
R620
IC804
(RS 5.6/2W)
KIA78R09API
NT: 398mA
PAL:503mA
184.47V / 18mA
CPT Board
C540
(4.7u/250V)
9V
28.2V / 320mA
LA78040N
9V
(#2,Vcc)
9V
9V
C309
(470u/35V)
110.1V
110.07V
R833
L802
(RS 0.47/2W)
(82uH)
C831
(220u/160V)
18102
FUSE & VARISTOR
VD801(TVR621D)
F801(T4AL250V)
NO POWER
FUSE OPEN
18106
START RESISTOR
R804,R805
STR SWITCH ON PROB.
NO POWER
18108
IC801(STR-W6754)
SECONDARY LOAD REGULATION POOR
OVER VOLTAGE PROT. NOT OPR.
NO POWER / INTERMITANT NO POWER
SWITCHING NOISE
18111
STR FEED BACK SECTION
D845,R810,C840
STR NO OPR./NO POWER
INTERMITENT NO POWER
SECONDARY O/P VOLTAGE POOR
INTERMITANT ST-BY MODE
14V / 25mA
17V
ST-5V
IC803
5V_1
5.0V / 231mA
KIA7805API
5.0V / 14mA
NT: 360mA
PAL:465mA
5.0V / 40mA
85mA
3.3V
3.3V Reg.
5V
1.8V
145mA.
1.5V Reg.
60mA
R520
(RS 620)
3.3V / 10mA
R513
5.0V / 13mA
(RS 300)
R529
8.0V / 15mA
(RS 68)
R132
5V /75mA.
(RS 68)
(105V~120V)
109.63V / 380mA
FR403
29.97V / 10mA
(RF 1.2/2W)
R107
(RS 12K/2W)
- 15 -
18101
AC INPUT
P801A/B,SW801
LA42101 (#7,Vcc)
LA42102 (#7,Vcc)
LA42102N (#7,Vcc)
D-Coil Relay
T/X Pre-Amp
MAIN IC (#24, Vcc)
EEPROM (#8, Vcc)
LV76213(#62,#4 Vcc)
LA72730 (#8 Vcc)
LA72702N (#19 Vcc)
LA42102 (#5,St-by)
LC75024E (3.3V Vcc)
LC75024E (1.5V Vcc)
FM TX, Game, USB OPT
LV76213(#9, Vcc)
LV76213(#20, Vcc)
LV76213(#49,Vcc)
TUNER(Vcc)
FBT B+
(28V~32V)
Tuner 30V
IC 601 (SOUND-amp) 5W MONO
IC 601 (SOUND-amp) 5W+5 W ST
IC 601 (SOUND-amp) 10W+10W ST
IC 501 (Main IC)
IC 751 (S/W IC )
IC 661 (RF STEREO NT)
IC 601 (SOUND-amp)
IC 807 (NICAM)
IC 501 (Main IC 3.3V Vcc)
IC 501 (Main IC Hor Vcc)
IC 501 (Main IC RGB Vcc)
LGE Internal Use Only
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