Mitsubishi Electric LT-46244; LT-40133; LT-46133; LT-52133; LT-40134; LT-46144; LT-52144; LT-46244; LT-52244 Service Manual page 42

1 2 3 4
A
B
C
ES_R
1 R_OUT+
R_SP
2 R_OUT-
1 L_OUT+
L_SP
2 L_OUT-
D
ES_L
ES
1 2 3 4 5
E
F
ANT
RELAY
G
PWB-DM
H
ASSY-PWB-DM:921C549001(LT-40133)
921C549002(LT-40134)
921C549003(LT-46133)
921C549004(LT-46144)
921C549005(LT-46244)
921C549006(LT-52133)
921C549007(LT-52144)
I
921C549008(LT-52244)
J
K
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 1 2 3 4 5 6 7 8 9 10 11 12
HD1 UD
HD1 US HD2 AN
1 2 3 4 1 2 3 4 5 6 7 8 1 2 3 4 5 6
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
USB
HDMI
L
REMOCON
SYSTEM5
ASSY-PWB-HDMI/USB:
:920D741001(LT-40133,LT-52133,
:920D739001
LT-46133,
LT-46144,52144)
:920D741002(LT-40134,LT-46244,
M
LT-52244)
ASSY-PWB-SENSOR:920D737001(LT-40133,LT-46133,LT-52133)
N
O
5 6 7 8 9
LT46144/46244/52144/52244
LT40133/40134/46133/52133
VR
PJ
1 2 3 4 5 6
1 GND
2 MICRESET
3
3.3VSCL
4 3.3VSDA
5 SELLVDS
6 MICPWR_ON
7 CABLE_DETECT1
PA-H 8 GND
9 GND
10 TA1-
GND 1
11 TA1+
PNL12V-SHORT 12 TB1-
2
13 TB1+
PANEL_PWR 3 14 TC1-
TC1+
15
AC-OFF 4 CABLE_DETECT0
16
17
MAIN-RELAY 5 TCLK1-
18 TCLK1+
BRIGHT 6 PB 19 GND
VR
20 TD1-
INV-SHORT
7 21 TD1+
22 TE1-
INV-RELAY 8
23 TE1+
INV-PWR 9 24 GND
25 GND
INV-SW 10
26 TA2-
GND 11 27 TA2+
28 TB2-
29 TB2+
30 TC2-
TC2+
31
32 GND
33 TCLK2-
34 TCLK2+
35 GND
36 TD2-
37 TD2+
38 TE2-
39 TE2+
40 GND
41 GND
STBY-ON 50 1 STBY-ON
GND 49 2 GND
GND 48 3 GND
AVRMUTE 47 4 AVRMUTE
GND 46 5 GND
AVR-L 45
6 AVR-L
GND
44 7 GND
AVR-R
43 8 AVR-R
GND 42
9 GND
TUNER-VIDEO 41 10
TUNER-VIDEO
GND 40 11 GND
GND 39 12 GND
GND 38 13 GND
5VSCL 37 14 5VSCL
FFC-H GND 36 15 GND
5VSDA 35 16 5VSDA
GND 34 17 GND
MAIN-R
33 18 MAIN-R
GND 32 19 GND
MAIN-L
31 20 MAIN-L
GND
30 21 GND
GND 29
22 GND
GND 28 23
GND
GND 27 24
GND
GND 26 GND
25
TU-R 25 26 TU-R
GND 24 27 GND
TU-L 23 28 TU-L
GND 22 29 GND
MAIN-Y-TVGOS 21 30 MAIN-Y-TVGOS
GND 20 31 GND
MAIN-C2 19 32 MAIN-C2
GND 18 33 GND
17
MAIN-Y2 34 MAIN-Y2
GND
16 35 GND
MAIN-PR 15 36 MAIN-PR
GND 14
37 GND
MAIN-PB 13 38
MAIN-PB
GND 12 39 GND
MAIN-Y 11 40 MAIN-Y
GND 10 41 GND
RXDB 9 42 RXDB
GND 8 43 GND
TXDB 7 44 TXDB
GND
6 45 GND
I2CDATA 5 46 I2CDATA
GND 4 47 GND
I2CCLKA
3 48 I2CCLKA
3.3VSL
2 49 3.3VSL
3.3VSL 1
50 3.3VSL
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1 2 3
AD JD
BL SW JD1
LE
1 2
1 2 3 4 1 2 3 4 5
LT-46244
LT-52244
SW
LT-46244
LT-52244
PWB-LED
ASSY-PWB-SW/VIDEO:920D738001
ASSY-PWB-SBL
:920D742001
:920D737002(LT-40134,LT-46144,LT-46244,
LT-52144,LT-52244)
10 11 12 13
LCD-MODULE
PANEL
CONTROL
ITEM 4,5,7,8 Only
(PANEL CONNECTOR)
(PANEL CONNECTOR)
LT40133/40134 LT46144/46244
CN1( LT46144/46244/52144/52244 ) CN1( ) CN2(
LT46133/52133 LT52144/52244
FI-RE
VX
VY
ASSY-PWB-FRC:920D743001
(LT-46144,LT-46244,LT-52144,LT-52244)
FOR 120Hz
FFC
PWB-SIGNAL
:920D740001(LT-40133,LT-46133,LT-52133)
:920D740002(LT-40134,LT-46144,LT-52144)
:920D740003(LT-46244,LT-52244)
1 2 3 4 5 6 7 8 9 10 11 12
CE
CE
1 2 3 4 5 6 7 8 9 10 11 12
VIDEO
14 15 16 17
24V
24V
24V
24V
24V
GND
46",52"Only
GND
GND
PANEL
GND
CONNECTOR
GND
N.C.
N.C.
N.C.
N.C.
INVERTER
24V
24V
24V
24V
24V
PANEL
GND
CONNECTOR
GND
GND
GND
GND
N.C.
BACKLIGHT ON/OFF
DIMMING
)
N.C.
PJ PD PA
1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 10 11 12
FI-RE
1 12VSL
GND 1
PL 2 N.C. LT46144/46244/52144/52244
12VSL
2
PL 3 GND
PGND 3
P12V 4
1 GND
2 N.C.
PM LT46144/46244/52144/52244
N.C.
3
4 PANELVCC
GND
1
2 GND
3 GND
4 GND
5 PANELVCC
PG
6 PANELVCC
7 PANELVCC
8 PANELVCC
9 PANELVCC
ASSY-PWB-POWER:921C544001(LT-40133,LT-40134)
921C544002(LT-46133)
921C544003(LT-52133)
1 GND
921C544004(LT-46144,LT-46244)
PNL12V-SHORT
2
3 PANEL_PWR 921C544005(LT-52144,LT-52244)
4 AC-OFF
5 MAIN-RELAY
6 BRIGHT
PB
INV-SHORT
7
8 INV-RELAY
9 INV-PWR
10 INV-SW
11 GND
PA PA
1 12VSL
12VSL 1
PK PK
GND
GND 2 2
1 2 3
PS
V
22
18 19 20 21
PG 1.....BLOCK
VLP38-V38++
* NOTES
1. DC voltages were measured from points indicated to the circuit
ground with a high-Z voltmeter
2. Wave form were taken with standard color bar signal.
3. TP13.etc. show test points.
4. CAPACITOR
PF, for numbers more than 1
Value Not indicated
uF, for numbers less than 1
Dielectric
strength Not indicated : 50V
No tolerance is indicated
Not indicated = +/- 10% for electrolytic capacitor
and +/- 20%
Tolerance
G=+/-2% P=+100% Q=+30% C=+/-0.25PF
J=+/-5% -0% -10% D=+/-0.5PF
K=+/-10% Z=+80% T=+200% F=+/-1PF
M=+/-20% -20% -0% D=+/-2PF
Not indicated : Ceramic capacitor
MF
: Polyester capacitor
PP
: Polypropylene film capacitor
ALM
: Aluminus electrolytic capacitor
Parts TF
: Twin film capacitor
except SC
: Semiconductor Ceramic capacitor
Type
for MP
I : Metalized paper
chips MPP
: Metalized plastic film capacitor
MMF
: Metalized polyester capacitor
: Polyester polypropylene film
MF,PP
capacitor
PS : Styrol capacitor
TAN or TANT : Tantalum capacitor
+
: Electrolytic capacitor
: Non polarized electrolytic
NP
capacitor
Not indicated : Ceramic capacitor chip
II chips +
: Electrolytic capacitor
PF PA
NP : Non polarized electrolytic
capacitor chip
1 2 3 4 5 6 7 8 9 10
Not indicated : F or B (high dielrctric percentage)
Characteristic
(Only ceramic
capacitor) CH, SL, etc. : Temperature compensaing types
46,52"Only
5. RESITOR
Not indicated = Ohm
K = 1,000 Ohm
Value M = 1,000,000 Ohm
Parts except Not indicated = 1/4W or 1/6W
for chips
Wattage
Chips Not indicated = 1/10W
Not indicated = +/-5%
Toler
ance D = +/-0.5% J = +/-5%
F = +/-1% K = +/-10%
Not indicated : Carbon resistor
S
Parts : Fixed composition resistor
Type MB : Metal oxide film resistor(Type B)
except
I CE : Cemented resistor
for
W : Wire wound resistor
chips
M : Metal film resistor
MP : Metal plate cement resistor
ML : Metal liner resistor
II chips Not indicated : chip resistor
6. This is a basic schematic diagram. Some sets may be subject
to modification according to engineering improvement
SHADED COMPONENTS HAVE SPECIAL CHARACTERISTICS
IMPORTANT TO SAFETY. BEFORE REPLACING ANY OF
THESE COMPONENTS, READ CAREFULLY THE PRODUCT
SAFETY NOTICE IN THE SERVICE MANUAL. DON'T
DEGRADE THE SAFETY OF THE RECEIVERS THROUGH
IMPROPER SERVICING.
SERVICE TECHNICIAN WARNING;
X-RADIATION PRECAUTION
THIS PRODUCT INCLUDES CRITICAL ELECTRICAL AND MECHANICAL
PARTS ESSENTIAL FOR X-RADIATION PROTECTION
TO AVOID POSSIBLE TO X-RADIATION TAKE RADIATION PROTECTIVE
MEASURE FOR PERSONNEL DOING SERVICING.
SEE SERVICE INSTRUCTION FOR SPECIFIED REPLACEMENT
PARTS AND SERVICE ADJUSTMENTS.
CONTENTS
LT-40133 VLP38
LT-40134 VLP38M
PG 1.....BLOCK PG 17....DM13 [LVDS]
PG 2.....POWER PG 18....DM14 [ADUIO]
LT-46133 VLP38
PG 3.....SIGNAL PG 19....DM15 [MICRO]
PG 4.....MISC PG 20....DM16 [TVGO/SYSTEM5] LT-46144 VLP38+
PG 5.....DM1 [DCDC/IF] PG 21....FRC
LT-46244 VLP38++
PG 6.....DM2 [TUNER/MISC]
PG 7.....DM3 [HDMI] LT-52133 VLP38
PG 8.....DM4 [CORE]
LT-52144 VLP38+
PG 9.....DM5 [MEMA]
PG 10....DM6 [ROM/AV]
LT-52244 VLP38++
PG 11....DM7 [1394]
PG 12....DM8 [POD]
PG 13....DM9 [ADC]
PG 14....DM10 [FPGA]
PG 15....DM11 [NAZCA]
PG 16....DM12 [NAZCAMEM]
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