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LCD-TV
Chassis M odel
A L2 9N O LTM 2 9 5 W
A L4 0N O LTM 4 0 5 W
Manual
SERVICELCD -TV CON TEN TS
1. Precautions
2. Product Specifications
3. Disassembly & Reassembly
4. Alignment & Adjustments
5. Troubleshooting
6. Exploded View & Parts List
7. Electrical Parts List
8. Block Diagram
9. Wiring Diagram
10. Schematic Diagrams
11. Panel Description
CONFIDENTIAL
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1-1-1 Warnings
1. For continued safety, do not attempt to modify thecircuit board.
2. Disconnect the AC power and DC Power Jackbefore servicing.
1-1-2 Servicing the LCD Monitor
1. When servicing the LCD Monitor disconnect theAC line cord from the AC outlet.
2. It is essential that service technicians have anaccurate voltage meter available at all times. Checkthe calibration of this meter periodically.
1-1-3 Fire and Shock Hazard
Before returning the monitor to the user, perform thefollowing safety checks:
1. Inspect each lead dress to make certain that theleads are not pinched or that hardware is notlodged between the chassis and other metal parts inthe monitor.
2. Inspect all protective devices such as nonmetalliccontrol knobs, insulating materials, cabinet backs,adjustment and compartment covers or shields,isolation resistor-capacitor networks, mechanicalinsulators, etc.
3. Leakage Current Hot Check (Figure 1-1):
WARNING:
Do not use an isolation transformer during this test.Use a leakage current tester or a metering systemthat complies with American National StandardsInstitute (ANSI C101.1, Leakage Current for
Appliances), and Underwriters Laboratories (ULPublication UL1410, 59.7).
Figure 1 -1. Leakage Current Test Circuit
4. With the unit completely reassembled, plug the ACline cord directly into a 120V AC outlet. With theunits AC switch first in the ON position and thenOFF, measure the current between a known earthground (metal water pipe, conduit, etc.) and allexposed metal parts, including: metal cabinets,screwheads and control shafts. The currentmeasured should not exceed 0.5 milliamp. Reversethe power-plug prongs in the AC outlet and repeat
the test.
1-1-4 Product Safety Notices
Some electrical and mechanical parts have specialsafety-related characteristics which are often notevident from visual inspection. The protection they givemay not be obtained by replacing them withcomponents rated for higher voltage, wattage, etc. Partsthat have special safety characteristics are identified by
on schematics and parts lists. A substitutereplacement that does not have the same safetycharacteristics as the recommended replacement part
might create shock, fire and / or other hazards. Productsafety is under review continuously and newinstructions are issued whenever appropriate.
LTM 295W / LTM 405W 1-1
CONFIDENTIAL
1 Precautions
Follow these safety, servicing and ESD precautions to prevent damage and to protect against potential hazards such aselectrical shock.
1-1 Safety Precautions
DEVICEUNDERTEST
TEST ALLEXPOSED METAL
SURFACES
(READING SHOULDNOT BE ABOVE 0.5mA)
LEAKAGECURRENTTESTER
2-WIRE CORD
ALSO TEST WITHPLUG REVERSED
(USING AC ADAPTERPLUG AS REQUIRED)
EARTHGROUND
!
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1-2-1 General Servicing Precautions
1. Always unplug the units AC power cord from theAC power source and disconnect the DC Power
Jack before attempting to:(a) remove or reinstall any component or assembly,(b) disconnect PCB plugs or connectors, (c) connecta test component in parallel with an electrolyticcapacitor.
2. Some components are raised above the printedcircuit board for safety. An insulation tube or tapeis sometimes used. The internal wiring issometimes clamped to prevent contact withthermally hot components. Reinstall all suchelements to their original position.
3. After servicing, always check that the screws,components and wiring have been correctlyreinstalled. Make sure that the area around theserviced part has not been damaged.
1. Immediately before handling any semiconductorcomponents or assemblies, drain the electrostaticcharge from your body by touching a known earthground. Alternatively, wear a discharging wrist-strap device. To avoid a shock hazard, be sure toremove the wrist strap before applying power tothe monitor.
2. After removing an ESD-equipped assembly, place iton a conductive surface such as aluminum foil toprevent accumulation of an electrostatic charge.
3. Do not use freon-propelled chemicals. These cangenerate electrical charges sufficient to damage
ESDs.4. Use only a grounded-tip soldering iron to solder or
desolder ESDs.
5. Use only an anti-static solder removal device. Somesolder removal devices not classified as anti-staticcan generate electrical charges sufficient to damageESDs.
4. Check the insulation between the blades of the ACplug and accessible conductive parts (examples:metal panels, input terminals and earphone jacks).
5. Insulation Checking Procedure: Disconnect thepower cord from the AC source and turn the powerswitch ON. Connect an insulation resistance meter(500 V) to the blades of the AC plug.
The insulation resistance between each blade of theAC plug and accessible conductive parts (seeabove) should be greater than 1 megohm.
6. Always connect a test instruments ground lead tothe instrument chassis ground before connectingthe positive lead; always remove the instrumentsground lead last.
6. Do not remove a replacement ESD from itsprotective package until you are ready to install it.Most replacement ESDs are packaged with leadsthat are electrically shorted together by conductivefoam, aluminum foil or other conductive materials.
7. Immediately before removing the protectivematerial from the leads of a replacement ESD,touch the protective material to the chassis orcircuit assembly into which the device will beinstalled.
Caution: Be sure no power is applied to thechassis or circuit and observe all
other safety precautions.8. Minimize body motions when handling
unpackaged replacement ESDs. Motions such asbrushing clothes together, or lifting your foot froma carpeted floor can generate enough staticelectricity to damage an ESD.
1 Precautions
1-2 LTM 295W / LTM 405W
CONFIDENTIAL
1-3 Electrostatically Sensitive Devices (ESD) Precautions
Some semiconductor (solid state) devices can be easily damaged by static electricity. Such components are commonlycalled Electrostatically Sensitive Devices (ESD). Examples of typical ESD are integrated circuits and some field-effecttransistors. The following techniques will reduce the incidence of component damage caused by static electricity.
1-2 Servicing Precautions
WARNING: An electrolytic capacitor installed with the wrong polarity might explode.
Caution: Before servicing units covered by this service manual, read and follow the Safety Precautionssection of this manual.
Note: If unforeseen circumstances create conflict between the following servicing precautions and any of thesafety precautions, always follow the safety precautions.
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CONFIDENTIAL
2 Product Specifications
2-1 Specifications
LCD Panel TFT-LCD panel, RGB verti cal stri pe, norma lly black TFT-LCD panel, RGB verti cal stri pe, norma lly black
transmissive, (29 -Inch) viewable, 0.4935 mm pixel pitch transmissive, (40-Inch) viewable, 0.6735 mm pixel pitch
Scanning Frequency Horizontal : 30 KHz ~ 60 KHz
Vertical : 56 Hz ~ 75 Hz
Display Colors 16,777,216 M i l l ion colors
M aximum Resolution Horizontal : 1280 PixelsVertical : 768 Pixels
Input Video Signal Analog, 0.7 Vp-p 5 % posit ive at 75 ,internally terminated
Input Sync Signal Type : Seperat e H/ V sync, Composi te H/ V, Sync-on-GreenLevel : TTL level
AC power vo l tage & Frequency AC 90 ~ 240V 60 Hz/50 Hz 3 Hz, DC 28V / 8A
Pow er Consumpt ion 160W (max) 220W (max)
Dimensions
Unit (W x D x H) 29.9 x 7.7 x 22.4 Inches (759.6 x 195.0 x 568.5 mm) 39.6 x 11.8 x 29.4 Inches (1006.0 x 300.0 x 7 46.5 mm)Carton (W x D x H) 37.8 x 7.7 x 22.4 Inches (961.2 x 195.0 x 568.5 m m) 49.1 x 11.8 x 29.4 Inches (1247.6 x 300.0 x 74 6.5 mm)
W eight (Net / Gross)
Environmental Considerat ions Operat ing Temperature : 50F ~ 104F (10C ~ 40C)Humidity : 10 % ~ 80 %
Storage Temperature : -4F ~ 113F (-20C ~ 45C)Humidity : 5 % ~ 95 %
TV System
Sound Characterist ics M a x Int ernal speaker Out : Right c 10 W / Lef tc 10 W
Bass control Range : -6 -12dB ~ +6 12dB
TREBLE control Range : -10 -12dB ~ +10 12dB
Output frequency : RFc 80 Hz~15 KHz/ A/ Vc 80 Hz~20 KHz
Line out : RFc 80 Hz~15 KHz/
A/
Vc 80 Hz~20 KHz
SyncMaster LTM 295W /LTM 405W comply w ith SWEDAC (M PRII) recommendations for reduced electromagnetic f ields. Designs and specif ications are subject to change w ithout prior notice.
LTM 295W / LTM 405W 2-1
ItemDescription
LTM 295W LTM 405W
18.0 kg (39.682 lbs) 28.0 kg ( 61.715 lbs)
Antena Input 75, Coaxial Cable
Color NTSC-M
Sound BTSC, A2 STEREO, EIAJ
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CONFIDENTIAL2-2 Pin Assignments
Pin No. 30 Pin Signal Cable (DVI Analog) Pin No. 30 Pin Signal Cable (DVI Analog)
1
23
4
5
6
7
8
9
10
11
1213
14
15
16
1718
19
20
21
22
23
24
25
26
2728
29
30
RX2+
RX2-GND
RX1+
RX1-
GND
RX0+
RX0-
GND
RXC+
RXC-
GNDDDC (Clock )
DDC (Data)
GND
GND
Check D-SubGND
DDC_5V
DDC_5V
GND
V/Sync
GND
H/Sync
GND
Blue
GNDGreen
GND
Red
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CONFIDENTIAL2 Product Specifications
LTM 295W / LTM 405W 2-3
2-3 Timing Chart
This section of the service manual describes the timing that the computer industry recognizes as standardfor computer-generated video signals.
48.1
1040
120
64
800
56
72.2
666
6
23
600
37
50.000
Positive
Positive
Separate
37.9
1056
128
88
800
40
60.3
628
4
23
600
1
40.000
Positive
Positive
Separate
35.2
1024
72
128
800
24
56.3
625
2
22
600
1
36.000
/ +
/ +
Separate
SVGA/56 Hz
800 x 600SVGA/60 Hz
800 x 600SVGA/72 Hz
800 x 600MAC/66 Hz
640 x 480
35.0
864
64
96
640
64
66.7
525
3
39
480
3
30.240
Negative
Negative
Separate
44.955
1650
40
70
1280
26 0
59.94
75 0
5
20
72 0
5
74.176
/ +
/ +
Separate
fH (kHz)
A sec
B sec
C sec
D sec
E sec
fV (Hz)
O msec
P msec
Q msec
R msec
S msec
ClockFreq.
(M Hz)
Polarity
H.Sync
V.Sync
Remark
VGA3/60 Hz
640 x 480VGA/72 Hz
640 x 480VGA/75 Hz
640 x 480VGA/85 Hz
640 x 480MAC/60 Hz
640 x 480
DTV/59.94 Hz
1280 x 720
DTV/59.94 Hz
1920 x 1080
Table 2-1 Timing Chart
33.716
2200
44
44
1920
192
59.94
1125
15
2
1080
5
74.176
/ +
/ +
Separate
31.5
80 0
96
40
64 0
8
60.0
52 5
2
25
48 0
2
25.175
Negative
Negative
Separate
37.9
832
40
120
640
16
72.8
520
3
20
480
1
31.500
Negative
Negative
Separate
37.5
84 0
64
12 0
64 0
16
75.0
50 0
3
16
48 0
1
31.500
Negative
Negative
Separate
43.3
832
56
80
640
56
85.0
509
3
25
480
1
36.000
Negative
Negative
Separate
31.5
80 0
96
48
64 0
16
60.0
52 5
2
33
48 0
10
25.175
Negative
Negative
Separate
Mode
Timing
Q R S
P
O
Video
Sync Sync
Horizontal Vertical
C D E
P
O
B
A
Video
Sync Sync
Separate Sync
C D
A O
E
B P
Video
Sync Sync
Video
Q R S
A : Line t ime total B : Horizontal sync w idth O : Frame t ime total P : Vert ical sync w idth
C : Back porch D : Act ive t ime Q : Back porch R : Act ive t ime
E : Front porch S : Front porch
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CONFIDENTIAL2 Product Specifications
2-4 LTM 295W / LTM 405W
68.7
1456
128
144
1152
32
75.1915
3
39
870
3
100.000
Negative
Negative
Separate
67.5
1600
12 8
25 6
1152
64
75.090 0
3
32
86 4
1
108.000
Positive
Positive
Separate
60.2
1328
96
176
1024
32
74.9804
3
30
768
3
80.000
Negative
Negative
Separate
MAC/74 Hz
1024 x 768
VESA/75 Hz
1152 x 864
MAC/75 Hz
1152 x 870
MAC/60 Hz
1024 x 768
48.8
1312
96
12 8
1024
64
60.081 3
6
33
76 8
6
64.000
Negative
Negative
Separate
46.9
1056
80
16 0
80 0
16
75.062 5
3
21
60 0
1
49.500
Positive
Positive
Separate
fH (kHz)
A sec
B sec
C sec
D sec
E sec
fV (Hz)O msec
P msec
Q msec
R msec
S msec
ClockFreq.(M Hz)
Polarity
H.Sync
V.Sync
Remark
MAC/74 Hz
832 x 624
XGA/60 Hz
1024 x 768
XGA/70 Hz
1024 x 768
XGA/75 Hz
1024 x 768
XGA/85 Hz
1024 x 768
SVGA/75 Hz
800 x 600
SVGA/85 Hz
800 x 600
Table 2-2 Timing Chart (continued)
53.7
1048
64
152
800
32
85.1631
3
27
600
1
56.250
Positive
Positive
Separate
49.7
1152
64
22 4
83 2
32
74.666 7
3
39
62 4
1
57.284
Negative
Negative
Separate
48.4
1344
136
160
1024
24
60.0806
6
29
768
3
65.000
Negative
Negative
Separate
56.5
1328
13 6
14 4
1024
24
70.180 6
6
29
76 8
3
75.000
Negative
Negative
Separate
60.0
1312
96
176
1024
16
75.0800
3
28
768
1
78.750
Positive
Positive
Separate
68.7
1376
96
20 8
1024
48
85.080 8
3
36
76 8
1
94.500
Positive
Positive
Separate
Mode
Timing
Q R S
P
O
Video
Sync Sync
Horizontal Vertical
C D E
P
O
B
A
Video
Sync Sync
Separate Sync
C D
A O
E
B P
Video
Sync Sync
Video
Q R S
A : Line t ime total B : Horizontal sync w idth O : Frame t ime total P : Vert ical sync w idth
C : Back porch D : Act ive t ime Q : Back porch R : Act ive t ime
E : Front porch S : Front porch
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CONFIDENTIAL2 Product Specifications
LTM 295W / LTM 405W 2-5
Q R S
P
O
Video
Sync Sync
Horizontal Vertical
C D E
P
O
B
A
Video
Sync Sync
Separate Sync
C D
A O
E
B P
Video
Sync Sync
Video
Q R S
A : Line t ime total B : Horizontal sync w idth O : Frame t ime total P : Vert ical sync w idth
C : Back porch D : Act ive t ime Q : Back porch R : Act ive t ime
E : Front porch S : Front porch
fH (kHz)
A sec
B sec
C sec
D sec
E sec
fV (Hz)
O msec
P msec
Q msec
R msec
S msec
ClockFrequency(M Hz)
Polarity
H.Sync
V.Sync
Remark
SUN/76 Hz
1280 x 1024
SXGA/60 Hz
1280 x 1024
SUN/76 Hz
1152 x 900
71.7
1472
96
208
1152
16
76.0
943
8
33
900
2
105.561
Negative
Negative
Separate
SUN/66 Hz
1152 x 900
61.8
1528
12 8
20 8
1152
40
66.0
93 7
4
31
90 0
2
94.500
/ +
/ +
Separate
64.0
1688
112
248
1280
48
60.0
1066
3
38
1024
1
108.000
Positive
Positive
Separate
74.4
1680
160
208
1280
32
70.0
1063
3
36
1024
0
125.000
Negative
Negative
Separate
80.0
1688
144
248
1280
16
75.0
1066
3
38
1024
1
135.000
Positive
Positive
Separate
81.1
1664
64
28 8
1280
32
76.1
1066
8
32
1024
2
135.000
Negative
Negative
Separate
SXGA/75 Hz
1280 x 1024
78.1
1728
192
192
1280
64
72.0
1085
3
55
1024
3
135.000
Negative
Negative
Separate
HP/72 Hz
1280 x 1024
NCD/70 Hz
1280 x 1024
Table 2-3 Timing Chart (continued)
Mode
Timing
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CONFIDENTIAL2 Product Specifications
2-6 LTM 295W / LTM 405W
Q R S
P
O
Video
Sync Sync
Horizontal Vertical
C D E
P
O
B
A
Video
Sync Sync
Separate Sync
C D
A O
E
B P
Video
Sync Sync
Video
Q R S
A : Line t ime total B : Horizontal sync w idth O : Frame t ime total P : Vert ical sync w idth
C : Back porch D : Act ive t ime Q : Back porch R : Act ive t ime
E : Front porch S : Front porch
Table 2-4 Timing Chart (continued)
fH (kHz)
A sec
B sec
C sec
D sec
E sec
fV (Hz)O msec
P msec
Q msec
R msec
S msec
ClockFrequency
(M Hz)
Polarity
H.Sync
V.Sync
Remark
UXGA/70Hz
1600 x 1200
UXGA/65Hz
1600 x 1200
81.25
2160
192
304
1600
64
651250
3
46
1200
1
175.500
/ +
/ +
Separate
UXGA/60Hz
1600 x 1200
75
2160
192
304
1600
64
601250
3
46
1200
1
162.000
/ +
/ +
Separate
87.5
2160
192
304
1600
64
701250
3
46
1200
1
189.000
/ +
/ +
Separate
80.038
2124
160
308
1600
56
64.4431242
3
38
1200
1
170.000
/ +
/ +
Separate
74.52
2592
208
336
1920
128
601242
3
38
1200
1
193.156
Negative
Positive
Separate
WUXGA2/60Hz
1920 x 1200
89.286
2240
256
368
1600
16
66.9311334
10
44
1200
80
200.000
/ +
/ +
Separate
SUN/66 Hz
1600 x 1200
NCD/64Hz
1600 x 1200
Mode
Timing
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CONFIDENTIAL2 Product Specifications
LTM 295W / LTM 405W 2-7
Table 2-5 DTV Timing chart
Timing No.Originator
Mode Name
Resolution (HxV)
1274M
1080i/60iHz
1920x1080
2296M
720p/60Hz
1280x720
3293M
480p/60Hz
720x483
HORIZONTALFrequencyTotal timeBorder (L / R)Data timeFront porchSync. widthBack porch
Sync. polarity
33.750kHz29.630s
0.000s25.859s
0.593s0.593s2.586s
-
-
45.000kHz22.222s
0.000s17.239s
0.943s0.539s3.502s
-
31.469kHz31.778s0.000s26.667s0.593s2.333s2.185s
-VERTICALFrequencyTotal timeBorder (T / B)Data timeFront porchSync. widthBack porchSync. polarity
30Hz33.333ms
0.000ms
0.059ms0.148ms0.444ms
-
60Hz16.667ms
0.000ms16.000ms
0.111ms0.111ms0.444ms
-
60Hz16.683ms
0.000ms15.349ms
0.191ms0.191ms0.953ms
-
Dot Clock 75MHz 75MHz 27MHz
2-4 DTVTiming Chart
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Memo
2 Product Specifications
2-8 LTM 295W / LTM 405W
CONFIDENTIAL
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LTM 295W / LTM 405W 3-1
CONFIDENTIAL
3 Disassembly and Reassembly
This section of the service manual describes the disassembly and reassembly procedures for theLTM295W/LTM405W monitor.
WARNING: This monitor contains electrostatically sensitive devices. Use caution when handlingthese components.
3-1 Disassembly
Cautions:1. Disconnect the monitor from the power source before disassembly.
2. Follow these directions carefully; never use metal instruments to pry apart the cabinet.
1. Remove 4 screws of the cover rear.
2. Remove the stand from LCD-TV.
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3 Disassembly and Reassembly
3-2 LTM 295W / LTM 405W
CONFIDENTIAL3. Remove 4 screws of the cover rear.
4. Pull the cover rear.
3-2 Reassembly
Reassembly procedures are in the reverse order of Disassembly procedures.
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CONFIDENTIAL
LTM 295W / LTM 405W 4-1
4 Alignments and Adjustments
This section of the service manual explains how to use the DDC JIG to adjust the black, red, green, and bluelevels of the FPD when you replace the AD Board, and how to update the microprocessor when youchange the Panel or Lamp(s).
4-1 General Alignment Instuction
1. Usually, a color TV-VCR needs only slight touch-up adjustment upon installation.
Check the basic characteristics such as height, horizontal and vertical sync.
2. Use the specified test equipment or its equivalent.
3. Correct impedance matching is essential.
4. Avoid overload. Excessive signal from a sweep generator might overload the front-end
of the TV. When inserting signal markers,do not allow the marker generator to distort
test result.
5. Connect the TV only to an DC power source with voltage and frequency as specified on
the backcover nameplate.
6. Do not attempt to connect or disconnect any wire while the TV is turned on. Make sure
that the power cord is disconnected before replacing any parts.
7. To protect aganist shock hazard,use an isolation transform.
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Memo
4 Alignments and Adjustments
4-2 LTM 295W / LTM 405W
CONFIDENTIAL
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CONFIDENTIAL
LTM 295W / LTM 405W 5-1
5 Troubleshooting
29:Does proper DC 28 V appear
at DC jack connected to CN28?40:Does proper DC 28 V appearat DC jack connected to CN29?
Check SM PS PCB and A dapter.
Yes
No
Does proper DC 5 V appear atPin 17 of CN201?
Check CN201 and related circuit.
Check IC963, IC906 and IC905.
Yes
No
Does proper DC 3.3 V
appear at Pin 2 of IC953,IC954, IC956 and IC957?
Check IC953, IC954, IC956 and IC957 .
Yes
No
Does proper DC 2.5 V appear at
Pin 2 of IC961 and IC964?Check IC961 and IC964.
Yes
No
Does proper DC 5 V appear atPin 2 of IC952, IC955 and IC 958?
Check IC952, IC955 and IC 958.
Yes
No
5-1 No Power
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CONFIDENTIAL5 Troubleshooting
5-2 LTM 295W / LTM 405W
5-2 No Video (CVBS, S-Video)
Pow er indicator is green
Does the signal appear at
Pin 5, 9, 11 and 36 of IC1?Check IC1.
Yes
No
Does the clock pulse appear at
Pin 6, 13 and Pin 69, 70 of IC302?Check IC302 and related circuit.
Yes
No
Does the colck pluse
appear at R812, R813 andH/ V Sync pulse of IC801?
Check related circuit of IC801.
Yes
No
Replace LCD Panel.
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CONFIDENTIAL5 Troubleshooting
LTM 295W / LTM 405W 5-3
5-3 No Picture (PC Signal [Analog])
Check Pin 22 and 24 of CN201. Check CN201 and related circuit.
Yes
No
Check Pin 66 and 67 of CN203. Check IC203 and related circuit.
Yes
No
Does the colck pluse
appear at R619, R621 andH/ V Sync pulse of IC603?
Check IC603 and related circuit.
Yes
No
IC901 and IC903 and replace it.
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CONFIDENTIAL5 Troubleshooting
5-4 LTM 295W / LTM 405W
Does the signal appear atPin 47, 48, 50, 51, 53, 54, 56,
57 and 67 of IC503?Check IC503 and related circuit.
Yes
No
Check Pin 10 a nd 13 of IC504? Check IC504 and related circuit Q501.
Yes
No
Does the signal appear atL502, L503, L504 and L505?
Replace L502, L503, L504 and L505.
Yes
No
29 :Check Speaker and CN2.40 :Check Speaker and CN2.
5-4 No Sound (RF, PC, Video, Component)
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CONFIDENTIAL5 Troubleshooting
LTM 295W / LTM 405W 5-5
5-5 No Picture (DTV)
29 :Does the signal appear at
Pin 16, 18 and 20 of CN103?40 :Does the signal appear at
Pin 16, 18 and 20 of CN3?
Check re lated circuit andinput signal of connector.
Yes
Yes
No
Dose the signal appear atPin 43, 48 and 54 of IC404?
Check IC404 and related circuit.
Yes
No
Dose the signal appear at
Pin 15, 19 and 21 of IC403?Check IC403 and related circuit.
Yes
No
Check IC801 and related circuit.
Pow er inductor is green.
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Memo
5 Troubleshooting
5-6 LTM 295W / LTM 405W
CONFIDENTIAL
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LTM 295W / LTM 405W
6 Exploded View and Parts List
6-1 LTM295W
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6-2 LTM405W
6 Exploded View & Parts List
6-2
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CONFIDENTIAL
8 Block Diagram
LTM 295W / LTM 405W 8-1
TA8851
RF
CVBS
S-Video
DVD
input
DTV
input
Pcdigital
PCanalog
3DCombfilter
VSP9437
EPA3032
MUX
MUX
Sil161B
AD9883
LV
DS
AD9883
MDIN100
(HDDeinterlacer)
Scaler
Jac
kAsm
Scaler
JackAsm
ALTERA
MSP
3451G
PC
Audio
V
ideo
A
udio
RF
Audio
TA1101B
Speaker
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CONFIDENTIALMemo
8 Block Diagrams
8-2 LTM 295W / LTM 405W
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LTM 295W / LTM 405W
CN901NC
GND
NC
NC
NC
BL_ENNC
GND
GND
GND
GND
GND
5V
CHDOWN
VOLUP
LEDCHUP
VOLDOWN
SOURCE
MENU
GND
GND
GND
IRINT
LED_
GREEN
LED_
RED
14V
9V5V
14V
GND
POWERON
GND
VID_
SCLK
VID_
DATA
GND
QSS_
IF1
GND
QSS_
IF2
GND
CVBS1
GND
CVBS2
GND
GND
VCR
GND
GND
SV_
C
GND
SV_
Y
GND
GND
PR2
GND
PB2
GND
PB3
GND
Y3
GND
GND
RCA_
R
RCA_
L
GND
COM1_
R
COM_
L
GND
Y2
GND
GND
PR3
SPEAKERLEFT+
SPEAKERLEFT_
GND
SPEAKERRIGHT+
SPEAKERRIGHT-
GND
HPDL
HPDR
GND
LINE_
OUTL
LINE_
OUTR
WOOFER
LOWP
OWERMODE
GND
COM2_
R
COM2_
L
CN903
AC
GND
NC
NC
NC
BL_
ENNC
GND
GND
GND
GND
CN954GND
GND
GND
GND
GND
14V
14V
14V
14V
14V
CN953GND
GND
GND
GND
GND
14V
14V
14V
14V
14V
CN950
CN601 CN501
CN3 CN1
28V
28V
28V
GND
GND
GND
28V28V
CN952
GND
GND
GND
GND
GND
14V
14V
14V
14V
14V
GND
GND
GND
GND
GND
14V
14V
14V
14V
14V
CN951
9 Wiring Diagram
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9 Schematic Diagrams
9-2
Memo
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COM2_R
DTV_DATA
DTV_SCLK
MSP_INT
QSS_IF1
QSS_IF2
RCA_L
RCA_R
J2WRn
MCA(0:17)
MCAD(0:7)
MCALE
MC_DATA
MC_SCLK
MSPPW
MSP_INT
RESETn
V_INT
WAIR_SEL
AUDIO
A_ST_BY
COM1_L
COM1_R
COM2_L
V_INT
YIN_A
MICOM
A_SHUTDWNB
CREFCLK1
CREFCLK2
DPMSLED1
IRINT
J1RDn
J1WRn
J2RDn
CVBS_B
DVD_PB
DVD_PR
DVD_Y
MC_DATA
MC_SCLK
RESET_V
VCLK
VHS1
VID_DATA
VID_ONB
VID_SCLK
VSP_FIELD
VSP_SEL
VVS1
VYO(0:15)
D_CLK
D_DE
D_HSYNC
D_VSYNC
PAB(0:7)
PAG(0:7)
PAR(0:7)
PCB(0:7)
PCG(0:7)
PCR(0:7)
PC_HS
PC_VS
TMDS_OE
VID_DATA
VID_SCLK
VIDEO
CIN_A
MCALE
PBB(0:7)
PBG(0:7)
PHS
PN
PSH
PVS
RESETn
RGB(0:47)
VSP_SEL
VSYNC_B
PC_IN
AD_CLK
AD_HSYNC
CHK_DSUB
DBB
DBG
DBR
DTV_SOGOUT
DTV_VSYNC
D_SELECT
FLES
HSYNC_B
J2RDn
J2WRn
JDE
JHSYNC
JSHFCLK
JVSYNC
MCA(0:17)
MCAD(0:7)
HSYNC_B
RESET_V
VCLK
VHS1
VSP_FIELD
VSYNC_B
VVS1
VYO(0:15)
VID
A_ST_BY
BK
CLK_B
CREFCLK2
DAB
DAG
DAR
PR3
VID_ONB
Y2
Y3
DE-INT
B_OUT(0:7)
CLK_B
DTV_DATA
DTV_DCLK
DTV_FIELD
DTV_HSYNC
DTV_PB(0:7)
DTV_SCLK
DTV_SEL
DTV_VSYNC
DTV_Y(0:7)
G_OUT(0:7)
DTV_FIELD
DTV_HSYNC
DTV_PB(0:7)
DTV_SCLK
DTV_SOGOUT
DTV_VSYNC
DTV_Y(0:7)
DVD_PB
DVD_PR
DVD_Y
D_SELECT
MC_DATA
MC_SCLK
PB2
PB3
PR2
DTV_A
DTV_DATA
DTV_DCLK
VID_DATAVID_SCLK
WAIR_SEL
Y2
Y3
YIN_A
COM1_R
COM2_L
COM2_R
CVBS_B
IRINT
LED_GREEN
LED_RED
PB2
PB3
POWERON
PR2
PR3
QSS_IF1
QSS_IF2
RCA_L
RCA_R
PAG(0:7)
PAR(0:7)
PCB(0:7)
PCG(0:7)
PCR(0:7)
PC_HS
PC_VS
POWERON
RESET_V
RESETn
RGB(0:47)
TMDS_OE
VID_ONB
AV_IN
CIN_A
COM1_L
D_DE
D_HSYNC
D_VSYNC
J1RDn
J1WRn
JDE
JHSYNC
JSHFCLK
JVSYNCLED_GREEN
LED_RED
LVDS_EN
MAINPW
MCA(0:17)
MCAD(0:7)
MCALE
PAB(0:7)
PC
AD_CLK
AD_HSYNC
A_ST_BY
BL_EN
CHK_DSUB
CREFCLK1
DECPWDPMSLED1
DTV_SEL
D_CLK
10 Schematic Diagrams
10-1 Apollo-II_Top Parts Schematic Diagram
LTM 295W / LTM 405W
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10 Schematic Diagrams
1 IC103 #20
CH1 RMS = 540V
LTM 295W / LTM 405W
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LTM 295W / LTM 405W
10 Schematic Diagrams
2 IC201 #22
CH1 RMS = 3.80V
3 IC201 #24
CH1 RM S = 4.12V
4 IC203 #67
CH1 RM S =2.92V
5 IC203 #66
CH1 RM S = 3.32V
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LTM 295W / LTM 405W
10 Schematic Diagrams
6 IC603 #613
CH1 RMS = 3.96V
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10 Schematic Diagrams
7 IC801 #R815
CH1 RM S = 3.96V
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10 Schematic Diagrams
10-12
10-8 DTV & DVD Parts Schematic Diagram
100nF
C420C404100nF
C407100nF
0R420
16V
47uFC446
R421
C418
100
4
5 6
7 8
100nF
RA405
1 23
C444
4.7pF
100nF
C419
16
C401
10.000000N
5
6
7
8 9
10
11
12
1314
15
FST3257MX
IC406
1
2
34
U4691
B
C410100n
BD403SBK201209T-800Y-S
R418 0
470KR414
75 R416
R413
75
100nF
C422
C448
10nF
R40833
B
C424
50V100nF
1 2
3
BD406SBK201209T-800Y-S
+5V_DTV
D402
100nF
C421
1AB2
3C
C442
4.7pF
SGM32F1E104-2A
FT405
D
5E
6F
+3.3_DTV_ADC
C428
120uF6.3V
ADP3330ART-3.3
1A
2B
3C
4
1 2
3 4
5 6
7 8
IC401
20
VCC
VD1IN
12 13
VD2IN
14
VDOUT
VIDEOIN18
RA406
8
GND4
10
19GOUT
24HD1IN
23
HD2IN
HDOUT
22
2
HDSYNC
1
RED1IN
7
RED2IN
21REDOUT
SYNCOUT17
IC403
5BLUE1IN
BLUE2IN
11
BLUEOUT
15
16CTL
3
G1IN
9
4
GND
6GND2
GND3
BA7657F
J10
K11
L12
M13
N14
MO
50V
1nFC426
AIN1
BIN2
CIN3
DIN4
EIN5
FIN6
GIN7
H 8I 9
4.7pF
C443
74LVX74MTCX
IC405
+3.3_DTV_D
C427
1nF
50VMO
1
C44547uF
16V
TP2471
U862
1
D405
1 2
3
U320
1 A B2
3C
C4381nF
16V
47uF
C437
SGM32F1E104-2A
FT403
10nFC434
TP2441
10nFC431
IC402
A1
B2
C3
D 4
E 5
F 6
ADP3330ART-3.3
R412
75
C406100nF
R41033
R40933
C433
470pF
100nFC409
100nFC405
1nF
C439
C450
10nF
C441
1nF
TP2451
VDD111
GREEN36
GREEN45
GREEN54
GREEN63
GREEN72
GND320
GREEN09
GREEN18
GREEN27
GND210
BLUE415
BLUE514
BLUE613
BLUE712
GND11
BLUE019
BLUE118
BLUE217
BLUE316
2
3 4
5 6
7 8
RA404
1
16V
47uF
C435
330K1/16W
R404
L401
R403
1/16W100K
C
SBK201209T-800Y-SBD401
B
+3.3_DTV_PLL
SGM32F1E104-2A
FT404
1AB
2
3
+5V_DTV
SBK201209T-800Y-SBD405
B
1 2
3
100nF50V
C423
C454
D401
100nF
1 2
3
C436
47uF
16V
BD404SBK201209T-800Y-S
B
D406
D403
1 2
3
R402
1/16W
330K
A1 2B
C3
100K
1/16W
R401
C44747uF
16V
FT402SGM32F1E104-2A
C408100nF
C402
10.000000
+3.3_DTV_ADC
10nF
C449
+5V_DTV
BD402SBK201209T-800Y-S
B
1 2
3 4
5 67 8
TP2461
RA403
C43210nF
75
33
R432
33
R429R427
33
R428
R422 0
U8631
R431
75
16V
10uF
+5V_DTV
C425
C429
10nF
C4
10
D404
1 2
3
D_
Y
R430
75
DTV_SCLK
DTV_DATA
VID_ONB
GR2IN
GREEN
RED
D_
PR
DVD_PB
DVD
_PB
DVD_PR
DVD_PB
DVD_Y
Y3
PB3
PR3
Y2
PB2
PR2
DTV
_SOGOUT
MC_SCLK
MC_DATA
D_SELECT
SOG
D_PB
BLUE
D_Y
D_PR
D_
PB
DVD_Y
DVD
_Y
DVD_PR
DVD
_PR
DTV
_HSYNC
DTV_PB(0:7)
DTV_Y(5)DTV_Y(4)
DTV_Y(3)
DTV_Y(2)
DTV_Y(1)
DTV_Y(0)
DTV
_Y(0:7)
DTV_Y(7)
DTV_Y(6)
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LTM 295W / LTM 405W
10 Schematic Diagrams
8 IC404 #67
CH1 RM S =3.40V
9 IC404 #48
CH1 RM S = 3.48V
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LTM 295W / LTM 405W
10 Schematic Diagrams
10 IC503 #28 11 IC503 #67
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LTM 295W / LTM 405W
10 Schematic Diagrams
12 CN1 #1
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LTM 295W / LTM 405W
10 Schematic Diagrams
13 IC905 #2
CH1 RMS =14.1V
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