Descargar Imprimir esta página

LG 21FJ8AG Manual De Servicio página 17

Publicidad

Idiomas disponibles

Idiomas disponibles

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©2008 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

Publicidad

loading