Tatung V32FLBB User manual

32” LCD-TV
Service Manual
N
NT TS SC C S Sy ys st te em m
V
V3 32 2F FL LB BB B
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V3 32 2F FC CB BB B
V
V3 32 2F FM MB BB B
April 12,2005
Version1.0

Table of Contents
1. Safety and Precautions ……………………………………………1
2. Specifications.............................................…………………………3
3. Connection & Applications……….............................................….5
4. Controls Location …..................................................……….…….7
5. Remote Control.......................................................………………..8
6. Disassembly Instructions.....................……………….……….…..10
7. Block Diagram........................……………………………………..14
8. Troubleshooting…………...............................…………………….15
9. Factory Mode Setting ……………………………………………..20
10. Electronic Circuit Description...........…………………..…………21
11. Circuit Diagram.............................…………………………..…….24
12. PCB Layout.............................………………………………..……45
13. Electrical Spare Parts List …..........................……………………49
14. Mechanical Disassembly ...…......................……….…………….51
15. Mechanical Spare Parts List….........................................…………52
16. Firmware Update Procedure …………………………………….. 53

1. Safety and Precautions
1.1Safety Precautions :
1) Cleaning : Unplug the power cord from the AC outlet before cleaning the product.
Use a damp cloth to clean the product. Do not use liquid cleaners or aerosol
cleaners.
2) Heat sources : Keep the product away from heat sources such as radiators,
heaters, stoves and other heat-generating products (including amplifiers).
3) For added protection for this television equipment during a lightning storm, or
when it is left unattended and unused for long periods of time, unplug it from the
wall outlet and disconnect the antenna. This will prevent damage to the
equipment due to lightning and power-line surges.
4) If an outside antenna is connected to the television equipment, be sure the
antenna system is grounded so as to provide some protection against voltage
surges.
- 1 -
Example of antenna grounding
As per national electrical code
Antenna lead in wire
Antenna discharge
unit
Power service
grounding
Electrode system unit
Ground clamp
Electric service
equipment

5) An outside antenna system should not be located in the vicinity of overhead
power lines or other electric light or power circuits, or where it can fall into such
power lines or circuits. When installing an outside antenna system, extreme care
should be taken to keep from touching such power lines or circuits as contact
with them might be fatal.
6) Ventilation : The vents and other openings in the cabinet are designed for
ventilation. Do not cover or block these vents and openings since insufficient
ventilation can cause overheating and/or shorten the life of the product. Do not
place the product on a bed, sofa, rug or other similar surface, since they can
block ventilation opening. This product is not designed for built-in installation. Do
not place the product in an enclosed place such as a bookcase or rack, unless
proper ventilation is provided or the manufacturer's instructions are followed.
1.2 Product Safety Notice :
1) Many electrical and mechanical parts in this chassis provide special visual
safety protection. The protection afforded by them cannot necessarily be
obtained by using replacement components rated for higher voltage, wattage,
etc.
2) Before replacing any of these components, read the parts list manual carefully.
The use of substitute replacement parts, which do not have the same safety
characteristics, as specified in the parts list may create shock, fire or other
hazards.
1.3 Service Notes :
1) When replacing parts or circuit boards, wrap the wires around terminals before
soldering.
2) Keep wires away from high temperature components.
3) Keep cable and their shielding in their original position so as to reduce
interference.
- 2 -

2. Specifications
2.1 Specification :
ITEMS SPECIFICATION
Model Name V32FLBB V32FCBB V32FMBB
Screen size/ Supplier 31.51” / LG panel 31.51” / CPT panel 32.02”/ CMO panel
Aspect Ratio 16：9 16：9 16：9
Resolution 1366 x 768 (WXGA) 1366 x 768 (WXGA) 1366 x 768 (WXGA)
Contrast ratio 600:1 (typ.) 800:1 (typ.) 800:1 (typ.)
Brightness 500cd/m2(typ.) 500cd/m2(typ.) 550cd/m2(typ.)
Viewing Angle Over 170 (Hor.)∘/170 (Vert.)∘
Display
OSD Language Chinese , English, French , German , Spanish
TV standard (CCIR) NTSC
TV Turning system PLL 181 Ch.
STEREO MTS+SAP
TV I/P
CATV 125 CH.
Composite Signal CVBS x 2
Y, C Signal S-Video x 2
Video I/P
Composite Signal YPbPr x 2 (720p, 1080i HDTV Ready)
Analog I/P 15 pin D-Sub Connector
Digital I/P 24 pin DVI Connector
PnP compatibility DDC / 2B (Analog) , DVI 1.0 / HDCP 1.0 (Digital)
I/P Frequency FH ：31.5KHz to 60KHz
FV ：56Hz to 75Hz
PC I/P
Recommended 1024 x 768 (60Hz)
Audio 1：CVBS & S-Video x 2
Audio 2：YPbPr x2
Audio I/P Audio I/P：L/R
Audio 3：PC x1
Video O/P Composite Signal TV only
Speaker (Built-in)：10W+10W (rms)
Audio O/P
Audio O/P：L/P
Sound level output
500 mV(rms) 3.5mm miniature stereo phone jack
PIP, PoP, 3D de-interlace, 3D comb-filter , V-Chip , C.C. SettingsOther
Functions Aspect Ratio Full →Normal →Zoom →Panoramic →Subtitle
Power Supply AC 110V ~ 240V, 50/60Hz
Power Power Consumption ＜180W
Dimension W x H x D 964.8mm x 580.4mm x 279.8mm
Wight (net) 22.2Kg (without Accessories)
Accessories Remote Control, Batteries, AC cord , DVI-D cable (optional), user’s manual.
- 3 -

2.2 PC Input preset timing table
Mode
No.
Mode
Resolution
H.Freq
(KHZ)
V. F r e q
(Hz)
H.Polarity
V.Polarity
Pixel
CLK
(MHZ)
Hor.
Total
Hor.
Display
H.Back
Porch
Hor.
Sync.
Width
Ve r.
Total
Ve r.
Display
V.Back
Porch
Ve r.
Sync
Width
1 VGA 70HZ
640*350
31.469
70.087
+
- 25.175 800 640 48 96 449 350 60 2
2 VGA 60HZ
640*480
31.469
59.941
-
- 25.175 800 640 48 96 525 480 32 2
3 VGA 72HZ
640*480
37.804
72.81
-
- 31.5 832 640 128 40 520 480 28 3
4 VGA 75HZ
640*480
37.5
75.0
-
- 31.5 840 640 120 64 500 480 16 3
5 SVGA 60HZ
800*600
31.156
56.25
+
+ 36.0 1024 800 128 72 625 600 22 2
6 SVGA 60HZ
800*600
37.879
60.317
+
+ 40.0 1056 800 88 128 628 600 23 4
7 SVGA 72HZ
800*600
48.077
72.188
+
+ 50.0 1040 800 64 120 666 600 23 6
8 SVGA 75HZ
800*600
46.875
75.0
+
+ 49.5 1056 800 160 80 625 600 21 3
9 XGA 60HZ
1024*768
48.363
60.004
-
- 65.0 1344 1024 160 136 806 768 29 6
10 XGA 70HZ
1024*768
56.476
70.069
-
- 75.0 1328 1024 144 136 806 768 29 6
11 XGA 75HZ
1024*768
60.023
75.029
+
+ 78.75 1312 1024 176 96 800 768 28 3
12 MAC VGA
640*480
35.0
66.667
-
- 30.24 864 640 96 64 525 480 39 3
13 MAC VGA
832*624
49.725
74.55
-
- 57.283 1152 832 224 64 667 624 39 3
14 MAC VGA
1280*768
47.73
60
-
- 80 1676 1280 198 136 795 768 23 3
15 WXGA
1280*720
45
60
+
+ 74.25 1650 1280 220 40 750 720 20 5
16 WXGA
1360*768
47.7
60 85.5 768
- 4 -

3. Connection & Applications
3.1 DVI port for HDCP Input
D-sub port for PC Input
3.2 DVI port for PC Input
D-sub port for Video Input
- 5 -

3.3 Video Expand card Connection
Audio O/P : The level of audio output cannot be changed by using the Volume, Treble,
and Bass controls on your TV. These connectors should be used with an
external amplifier that can be used to control the volume.
Video O/P : The main display must set to TV mode in order to use video out to record a
program using a VCR.
-6-
Subwoofer
Out
A/V Out

4. Control Location
Rear Side :
Before operating the LCD-TV or remote control, users must press MAIN POWER
switch to ON. The MAIN POWER switch is located at the bottom-left back of the
LCD-TV.
Front Side :
- 7 -

5. Remote Control
5.1 Remote Control :
- 8 -
VIDEO SWAP