PROFILO PT1000 User manual

26”-32” LCD-TV
PT1000

__________________________________________________________
CONTENTS
1. Assembling/Disassembling Procedure .................... 04
2. Safety Instructions and Warnings .................... 09
3. Specifications .................... 12
4. Block Diagrams and Connections .................... 17
5. Menu Structure .................... 30
6. Circuit Diagrams and Printed Circuit Board Layouts .................... 34
7. Troubleshooting .................... 52
8. Data Sheets
TECH2949PS40A(D) .................... 53
CAT24WC01/02/04/08/16
1K/2K/8K/16K-Bit Serial EEPROM .................... 55
74HC4066; 74HCT4066
Quad bilateral switches .................... 56
CD4069UBC
Inverter Circuits .................... 58
EDD1232AAFA (4M wordsx32 bits)
128M bits DDR SDRAM .................... 59
EN29LV040
4 Megabit (512k x 8-bit) Uniform Sector,
CMOS 3.0 Volt-only Flash Memory .................... 61
FDC6326L
Integrated Load Switch .................... 63
IL1117A-x
1.0A Low Dropout Positive Voltage Regulator ..................... 64
MST6181LDA
SXGA/WXGA LCD Multi-Function Monitor
Controller with Dual LVDS transmitter
Preliminary Data Sheet Version 0.2 ..................... 66
MTV512M
8051 Embedded Monitor Controller with
64K Flash ROM ..................... 76
RC1117
1A Adjustable/Fixed Low Dropout
Linear Regulator ..................... 79
26'' - 32 '' LCD-TV PT1000 Service Manual
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2

____________________________________
TPA3004D2
12-W STEREO CLASS-D AUDIO POWER
AMPLIFER WITH DC VOLUME CONTROL .................... 81
TPA6110A2
150-m W STEREO AUDIO POWER
AMPLIFIER .................... 85
TW9906
3x10-bit Multi-Standard Comb Filter Video
decoder with YcbCr Component Input .................... 87
VCT 49xyl, VCT 48xyl .................... 89
WM8725
99dB Stereo DAC ....................101
26'' - 32'' LCD-TV PT1000 Service Manual
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3

1. Assembling/ Disassembling Procedure
Please follow the assembly instructions explained below;
NOTE: Make sure that the power cord is disconnected from the outlet.
• Pay special attention not to break or damage the parts.
• When removing each board, remove the connectors as required.
• Taking notes of the connecting points (connector numbers) makes service
procedure manageable.
• Make sure that there is no bent or stain on the connectors before inserting, and
firmly insert the connectors.
• Be sure that all cables are free. If necessary fix the cables firmly to avoid any kind
of squeezing while placing the boards back.
• If possible before starting every each stage of disassembly take a photo.
• Keep all screws and other components in safety place.
• Do not store components in a moist , dusty and dirty place.
Disassambly ordering:
1-) Remove Back Cover
2-) Remove Stand Group
3-) Remove DVD Holder and DVD (or wireless holder and PCB)
4-) Remove Switch Box
5-) Remove Power Board and Main Board
6-) Remove Board Base Metal (or plastic)
7-) Remove Power Cable
8-) Remove LCD Panel keepers (plastics or metals)
9-) Remove LCD panel
10-) Remove all cables and connectors from Side AV.
11-) Remove Side AV holder and PCB
12-) Remove Multibutton holder and PCB from Cabinet
13-) Remove Multibutton PCB and Multibuttons from Multibutton_Holder
14-) Remove Tweeters and Speakers from Cabinet
15-) Remove Standby&Infrared PCB from its holder
16-) Remove Acrylic standby button, and LED holder from Cabinet.
17-) Remove Eject button and PCB
Assembly ordering:
The assembly ordering is exactly reverse of disassembly ordering. In any doubt, look
photos, which you have taken before, and check, exploded view.
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26'' - 32 '' LCD-TV PT1000 Service Manual
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4

EXPLODED WIEW PART LIST NO. DESCRIPTION 1. FRONT CABINET 2. LCD PANEL 3. LCD PANEL HOLDER 4. LCD PANEL HOLDER SCREW 5. MULTIBUTTON 6. MULTIBUTTON PCB 7. MULTIBUTTON PCB SCREW 8. SIDE AV HOLDER 9. SIDE AV HOLDER SCREW 10. SIDE AV PCB 11. SIDE AV PCB SCREW 12. REFLECTOR 13. INFRA LED PCB 14. INFRA LED PCB SCREW 15. SPEAKER 16. SPEAKER SCREW 17. EJECT BUTTON 18. EJECT BUTTON PCB 19. EJECT BUTTON PCB SCREW 20. STAND HOLDER SHEET 21. STAND HOLDER SHEET SCREW 22. COVER PART 23. COVER PART SCREW 24. MMC CARD HOLDER 25. MMC CARD HOLDER SCREW 26. MMC CARD PCB 27. MMC CARD PCB SCREW 28. MAIN BOARD HOLDER 29. MAIN BOARD HOLDER SCREW 30. MAIN BOARD AVISOL 31. MAIN BOARD SCREW 32. POWER BOARD HOLDER 33. POWER BOARD HOLDER SCREW 34. POWER BOARD 35. DVD LOADER HOLDER 36. DVD LOADER HOLDER SCREW 37. DVD LOADER 38. VESA STANDARD SHEET 39. VESA STANDARD SHEET SCREW 40. PLASTIC STAND 41. PLASTIC STAND SHEET 42. PLASTIC STAND SHEET SCREW 43. PLASTIC STAND BOTTOM SHEET 44. PLASTIC STAND BOTTOM SHEET SCREW 45. BACKCOVER DVD 46. BACKCOVER DVD SCREW

EXPLODED WIEW PART L
IST
N
O. DESCRIPTION
1
. FRONT CABINET
2
. FRAME CMO/FRAME OTHER
3
. PANEL CMO/SM/AUO/LG
4
. BOARD HOLDER (METAL)
5
. PANEL HOLDER (TOP-BOTTOM)
6
. PANEL HOLDER (SIDE)
7
. EJECT PCB
8
. EJECT BUTTON
9
. VESA METAL 200X200
1
0. BACK COVER
1
1. PHILIPS SPEAKER
1
2. SPEAKER RUBBER
1
3. SIDE AV
1
4. MULTIBUTTON
1
5. MULTIBUTTON PCB
1
6. CONTROL PCB
1
7. CMO PANEL FIXING (LEFT)
1
8. CMO PANEL FIXING (RIGHT)
1
9. CASON SLOT DVD
2
0. DVD HOLDER
2
1. POWER BOARD
2
2. AVISOL MAIN BOARD
2
3. CABLE STOPPER
2
4. MAINS CORD
2
5. PANEL HOLDER (LEFT)
2
6. PANEL HOLDER (RIGHT)
2
7. BOTTOM COVER
2
8. HOLDER FIXING METAL
2
9. STAND
3
0. HOLDER METAL
3
1. STAND SHIELD
3
2. FOOT RUBBERS
3
3. LABEL
3
4. ON-OFF SWITCH
3
5. LG FIXING (BOTTOM)
3
6. LG FIXING (TOP)
3
7. LG HOLDER (BOTTOM)
38. LG HOLDER (TOP)

__________________________________________________________
EXPLODED WIEW PART LIST NO. DESCRIPTION 1. FRONT CABINET V01 INSERT 2. LCD PANEL (LG / AUO / SAMSUNG) 3. BACK COVER (DVD INSERT) 4. PANEL COVER METAL 5. POWER BOARD 6. EJECT BUTTON HOLDER 7. EJECT BUTTON 8. EJECT PCB 9. DVD LOADER 10. PANEL FIXING PLASTICS 11. DVD HOLDER 12. MAIN BOARD 13. SWITCH COVER 14. AV PCB(20" COLORFUL) 15. I/O SWITCH 16. MULTI BUTTON 17. MULTI BUTTON PCB 18. AV PCB / MULTI BUTTON PCB HOLDER 19. SPEAKER VIBRATION RUBBER 20. SPEAKER VIBRATION PLASTIC 21. SPEAKER 22. STAND-BY PCB 23. MCR HOLDER 24. MCR PCB 25. REFLECTOR 26. STAND-BY REFLECTOR 27. STAND-BY BUTTON 28. METAL FOOD 29. FRONT SHUTTER 30. PLASTIC STAND 31. STAND SHIELD
26'' - 32 '' LCD-TV PT1000 Service Manual
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7

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EXPLODED WIEW PART LIST NO. DESCRIPTION 1. FRONT CABINET V02 INSERT 2. LCD PANEL (LG / AUO / SAMSUNG) 3. BACK COVER V02 (DVD INSERT) 4. PANEL COVER METAL 5. POWER BOARD 6. EJECT BUTTON HOLDER 7. EJECT BUTTON 8. EJECT PCB 9. DVD LOADER 10. PANEL FIXING PLASTICS 11. DVD HOLDER 12. MAIN BOARD 13 . SWITCH COVER 14. AV PCB(20" COLORFUL) 15. I/O SWITCH 16. MULTI BUTTON V02 17. MULTI BUTTON PCB V02 18. SIDEAV PCB HOLDER V02 19. SPEAKER VIBRATION RUBBER 20. SPEAKER VIBRATION PLASTIC 21. SPEAKER 22. STAND-BY PCB V02 23. MCR HOLDER 24. MCR PCB 25. REFLECTOR V02 26. STAND-BY REFLECTOR V02 27. MENU BUTTON 28. METAL FOOD V02 29. FRONT SHUTTER V02 30. PLASTIC STAND V02 31. STAND SHIELD V02
26'' - 32 '' LCD-TV PT1000 Service Manual
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8

2. SAFETY INSTRUCTIONS AND PRECAUTIONS
1. Use only the original spare parts with the same specifications for replacement.
2. Only the original fuse value should be used.
3. Safety components should be replaced by components identical to the original
ones.
4. Main leads and connecting leads should be checked for external damage before
connection. Insulation must be checked.
5. Parts contributing to the safety of the product must not be damaged or obviously
unsuitable. This is valid especially for insulators and insulating parts.
6. Thermally loaded solder pads are to be sucked off and re-soldered.
7. Ensure that the ventilation slots are not obstructed.
8. Servicing should not be attempted by anyone who is not thoroughly familiar with
precautions necessary when working on high voltage equipment. Perfectly
discharge the high potential of the picture tube before handling it. The picture
tube is highly evacuated and if broken. Glass fragments will be violently expelled.
Always discharge the picture tube anode to the receiver chassis to keep of the
shock hazard before removing the anode cap.
9. Keep wire away from the high voltage or high temperature components.
10. When replacing a wattage resistor, keep the resistor 10mm away from the circuit
board.
HANDLING THE MOS CHIP COMPONENTS
MOS circuit requires special attention with regard to static charges. Static charges
may occur with any highly insulated plastics and can be transferred to persons
wearing clothes and shoes made of synthetic materials. Protective circuits on the
inputs and outputs of MOS circuits give protection to a limited extend only due to
time of reaction.
Please observe the following instructions to protect the components against ESD.
1. Keep MOS components in conductive package until they are used. Most
components must never be stored in styropor materials or plastic magazines.
2. Personnel must not touch the MOS components to avoid electrostatic
discharging.
3. Hold the component by the body touching the terminals.
4. Use only grounded instruments for testing and processing purposes.
5. Remove or connect MOS Ics when operating voltage is disconnected.
6. Personnel in charge must make sure that they are connected with the same
potential as the mass of the set by a wristband with resistance.
2.1. Precautions
Please pay attention to the followings when you use this TFT LCD module.
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26'' - 32 '' LCD-TV PT1000 Service Manual
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9

2.1.1. Mounting Precautions
(1) You must mount a module using holes arranged in four corners or four sides.
(2) You should consider the mounting structure so that uneven force (ex. Twisted
stress) is not applied to the module. And the case on which a module is
mounted should have sufficient strength so that external force is not
transmitted directly to the module.
(3) Please attach the surface transparent protective plate to the surface in order
to protect the polarizer. Transparent protective plate should have sufficient
strength in order to the resist external force.
(4) You should adopt radiation structure to satisfy the temperature
specification.
(5) Acetic acid type and chlorine type materials for the cover case are not
desirable because the former generates corrosive gas of attacking the
polarizer at high temperature and the latter causes circuit break by electro-
chemical reaction.
(6) Do not touch, push or rub the exposed polarizer with glass, tweezers or
anything harder than HB pencil lead. And please do not rub with dust clothes
with chemical treatment. Do not touch the surface of polarizer for bare hand
or greasy cloth. (Some cosmetics are detrimental to the polarizer.)
(7) When the surface becomes dusty, please wipe gently with absorbent cotton or
other soft materials like chamois soaks with petroleum benzine. Normal-
hexane is recommended for cleaning the adhesives used to attach front / rear
polarizers. Do not use acetone, toluene and alcohol because they cause
chemical damage to the polarizer.
(8) Wipe off saliva or water drops as soon as possible. Their long time contact
with polarizer causes deformations and color fading.
(9) Do not open the case because inside circuits do not have sufficient strength.
2.1.2 Operating Precautions
(1) The spike noise causes the mis-operation of circuits. It should be lower than
following voltage: V=±200mV(Over and under shoot voltage)
(2) Response time depends on the temperature. (In lower temperature, it becomes
longer.)
(3) Brightness depends on the temperature. (In lower temperature, it becomes
lower.) And in lower temperature, response time (required time that brightness is
stable after turned on) becomes longer.
(4) Be careful for condensation at sudden temperature change. Condensation makes
damage to polarizer or electrical contacted parts. And after fading condensation,
smear or spot will occur.
(5) When fixed patterns are displayed for a long time, remnant image is likely
to occur.
(6) Module has high frequency circuits. Sufficient suppression to the electromagnetic
interference shall be done by system manufacturers. Grounding and shielding
methods may be important to minimize the interference.
(7) Please do not give any mechanical and/or acoustical impact to LCM. Otherwise,
LCM can’t be operated its full characteristics perfectly.
(8)A screw, which is fastened up the steels, should be a machine screw. (if not, it
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26'' - 32 '' LCD-TV PT1000 Service Manual
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10

causes metallic foreign material and deal LCM a fatal blow)
(9) Please do not set LCD on its edge.
2.1.3. Electrostatic Discharge Control
Since a module is composed of electronic circuits, it is not strong to electrostatic
discharge. Make certain that treatment persons are connected to ground through
wrist band etc. And don’t touch interface pin directly.
2.1.4. Precautions for Strong Light Exposure
Strong light exposure causes degradation of polarizer and color filter.
2.1.5. Storage
When storing modules as spares for a long time, the following precautions are
necessary.
(1) Store them in a dark place. Do not expose the module to sunlight or fluorescent
light. Keep the temperature between 5°C and 35°C at normal humidity.
(2) The polarizer surface should not come in contact with any other object. It is
recommended that they be stored in the container in which they were shipped.
2.1.6. Handling Precautions for Protection Film
(1) The protection film is attached to the bezel with a small masking tape.When the
protection film is peeled off, static electricity is generated between the film
and polarizer. This should be peeled off slowly and carefully by people who
are electrically grounded and with well ion-blown equipment or in such a
condition, etc.
(2) When the module with protection film attached is stored for a long time,
sometimes there remains a very small amount of glue still on the bezel after
the protection film is peeled off.
(3) You can remove the glue easily. When the glue remains on the bezel surface or
its vestige is recognized, please wipe them off with absorbent cotton waste or
other soft material like chamois soaked with normal-hexane.
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26'' - 32 '' LCD-TV PT1000 Service Manual
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11

3.S
p
ecifications
3.1 Technical Specifications
Panel 26" 32"
A
s
p
ect Ratio 16:9 16:9
Resolution
(
*
)
1366 x 768 1366x768
A
ctive Area
(
mm
)
(
*
)
284.16 x 213.12
Bri
g
htness
(
t
yp)
(
*
)
500 cd/m2 500 / 550 cd/m2
Contrast Ratio
(
t
yp)
(
*
)
600:1 / 800:1 800:1 / 1000:1 /1200:1
Viewin
g
An
g
le
(
H/V de
g
ree
)(
t
yp)
(
*
)
H/V: 140/115
Res
p
onse Time
(
t
yp)
(
*
)
8ms
(
GtG
)
8ms
(
GtG
)
Picture
Full HD
(
1080
p)
su
pp
ort
INVATEK En
g
ine
3D DNR
(
Di
g
ital Noise Reduction
)
3D MADI
(
Motion Ada
p
tive De-Interlacer
)
Di
g
ital Comb Filte
r
DLTI/DCTI
DLC
(
D
y
namic Luminance Control
)
3/2 - 2/2 motion
p
ull down
STC
(
Skin Tone Control
)
BWS
(
Black & White Stretch
)
PMR
(
Picture Mode Reco
g
nition
)
Freeze
Color Tem
p
erature Selection
Pre-set Picture Modes
Picture Formats
Tunin
g
Tuner
TV-Standards PAL BG / DK / I ; SECAM BG/ DK / LL'
NTSC 4.43MHz / 3.58MHz Pla
y
bac
k
A
uto Pro
g
rammin
g
A
TS Euro Plus Tunin
g
S
y
stem
Fine-tunin
g
Pro
g
ram stora
g
e ca
p
acit
y
VHF / UHF
Ch. covera
g
eCATV / H
yp
erband
(
S1-S41
)
Teletext
Flof teletext
Teletext ca
p
abilit
y
in OSD Lan
g
ua
g
e
s
T.Text Pa
g
e Memor
y
General Features
HD Read
y
Bitma
p
GUI
(
Gra
p
hic OSD
)
OSD Menu in multi lan
g
ua
g
es
On/Off Timer
A
uto shut-off
Pro
g
ram Lock
Pro
g
ram namin
g
PIP via PC/Com
p
onent/HDMI
(
or DVI
)
PIP via A
V
PIP double tune
r
PAP available w/ PIP double tune
r
PIP
(
Analo
g
/ Di
g
ital
)
o
p
tional for IDT
V
PIP size/Position Ad
j
ustmen
t
--
{
{
{
PIP Options
available with PIP double tuner
available with PIP double tuner
{
z
z
z
z
z
z
z
z
z
250 pages
z
z
z
z
99
PLL
z
z
z
Cool1/2, Warm1/2, Normal
Standart-Dynamic-Soft-User
16:9, 14:9, Cinema, 4:3, Auto
z
z
z
z
z
z
z
z
z
z
z
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26'' - 32 '' LCD-TV PT1000 Service Manual
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12

Sound
A
2 + Nicam stereo
A
uto Volume Level
Sound Effect
(
S
p
atial Effect
)
Pre-set sound modes
Balance
Treble
Bass
A
udio out
p
ut
p
ower
(
rms
)
Connections
Side Connections
Video CVBS In, Audio L/R In
Head
p
hone Out
p
u
t
Rear Connections
A
ntenna in
p
ut
(
75 ohm IEC
)
1st Scart
(
RGB, CVBS In/Out, Audio L/R
)
2nd Scart
(
CVBS In/Out, , Audio L/R
)
Video CVBS Out, Audio L/R Out
(
AV-OUT
)
YPbPr Video In, Audio L/R In
480i : 59.94/60Hz, 480P : 59.94/60Hz 576i : 50Hz,
576P : 50Hz 720P : 59.94/60Hz, 1080i : 50/59.94/60Hz
S-Video In, Audio L/R In
(
Cinch
)
VGA Analo
g
PC In
p
ut
(
D-Sub 15P
)
HDMI
(
w/ HDCP
)
2nd HDMI
(
w/ HDCP
)
w/ full hd chassis
HDMI / PC Audio In
CI Slot
(
available w/ IDTV
)
Accessorie
s
Remote Control Unit
z
: standard
{
: o
p
tional
* These s
p
ecifications are de
p
endent on the
p
anel brand/ver. &
p
anel manufacturer's chan
g
es.
S
p
ecifications are sub
j
ect to chan
g
e without notice.
z
z
z
flat, speech, music, movie, user
z
z
z
2 x 8W (<10%THD)
z
z
COMPONENT (YPbPr) Modes
z
z
z
z
TM3602 / TM64 DVD-TV / TM4901IDTV
--
z
z
z
{
z
z
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26'' - 32 '' LCD-TV PT1000 Service Manual
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13

3.2Electrical Specifications
Electrical Specifications
No. Item Description Remarks
Min Typ Max
For Audio 11.4 12.0 12.6 V
For Stand-
by 4.8 5.0 5.2 V
For Logic 4.8 5.0 5.2 V
Power Supply
For Tuner 32.5 33.0 33.5 V
Power Consumption normal
operation
1
Stand-by Power Consumption
DPMS Sync (V/H) VIDEO Power (V/A) LED
Stand By, Sleep & Suspend
Mode Off/On & On/Off Off 3W DARK RED
2
POWER OFF - - 3W RED
Typical 10Wrms + 10Wrms ( ± 10%) Volume: Adjust
Power Max 12Wrms + 12Wrms Volume: Max
Response Frequency 100Hz ~ 10KHz
T.H.D 10%
Input 0.700Vrms
3Audio
AMP
S/N 40dB
Type External
4 Speaker
Impedance 8
System PAL/SECAM
Tuning Frequency Synthesizer System
5 TV
System
Channel 1) VHF LOW: 46.25~127.25MHz HIGH: 133.25~361.25
2) UHF 367.25~863.75MHz
Video Level 0.7±0.15 V p-p 75
Termination
Sync Level 0.286±0.075 V p-p 75
Termination
Color Burst 0.214±0.072 V p-p 75
Termination
0.7±0.1 V rms PC Input
0.5±0.05 V rms NTSC
Audio Level 0.4±0.05 V rms PAL
6 AV
Video Cross-Talk 43 dB
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26'' - 32 '' LCD-TV PT1000 Service Manual
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14

3.3 Supported Resolutions
PC Mode
M Item Pol CLOCK
[MHz]
Frequency
[kHz]/[Hz] H- Total
(E)
Display
(A) Front Porch(B) Sync. (D) Back Porch(F) Res.
1H(Pixels) + 31.469 800 640 16 96 48
V(Lines) -
25.175 70.8 449 350 37 2 60 640
x
350
2H(Pixels) - 31.468 900 720 18 108 54
V(Lines) + 28.321 70.8 449 400 12 2 35 720
X
400
3H(Pixels) - 31.469 800 640 16 96 48
V(Lines) -
25.175 59.94 525 480 10 2 33 640
x
480
4H(Pixels) - 37.5 840 640 16 64 120
V(Lines) - 31.5 75 500 480 1 3 16 640
x
480
5H(Pixels) - 43.269 832 640 56 56 80
V(Lines) - 36.0 85.0 509 480 1 3 25 640
x
480
6H(Pixels) + 37.879 1056 800 40 128 88
V(Lines) + 40.0 60.317 628 600 1 4 23 800
x
600
7H(Pixels) + 49.5 46.875 1056 800 16 80 160
V(Lines) + 75.0 625 600 1 3 21 800
x
600
8H(Pixels) + 53.674 1048 800 32 64 152
V(Lines) + 56.25 85.061 631 600 1 3 27 800
x
600
9H(Pixels) +/- 49.725 1152 832 32 64 224
V(Lines)
+/-
57.283 74.55 667 624 1 3 39
832
x
624
10 H(Pixels) - 48.363 1344 1024 24 136 160
V(Lines) - 65.0 60.0 806 768 3 6 29 1024
x
768
11 H(Pixels) - 60.123 1312 1024 16 96 176
V(Lines) -
78.75 75.029 800 768 1 3 28 1024
x
768
12 H(Pixels) + 68.68 1376 1024 48 96 208
V(Lines) + 94.5 85.00 808 768 1 3 36 1024
x
768
13 H(Pixels) + 44.772 1664 1280 64 128 192
V(Lines) + 74.5 59.855 748 720 3 5 20 1280
x
720
14 H(Pixels) + 47.72 1776 1360 72 136 208
V(Lines) + 84.75 59.799 798 768 3 5 22 1360
x
768
15 H(Pixels) + 63.981 1688 1280 48 112 248
V(Lines) + 108.0 60.02 1066 1024 1 3 38 1280
x
1024
H(Pixels) + 79.98 1688 1280 16 144 248
16 V(Lines) + 135.00 75.02 1066 1024 1 3 38 1280
x
1024
DTV Mode (Component Video Input: Y/Pb/Pr)
- 50Hz: 576i, 576p, 720p, 1080i - 60Hz: 480i, 480p, 720p, 1080i
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26'' - 32 '' LCD-TV PT1000 Service Manual
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15

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26'' - 32 '' LCD-TV PT1000 Service Manual
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16

AM0005 BLOCK DIAGRAM
MULTIBUTTON LED/INFRA
MAIN TUNER
PLL TUNER IF1
PIP TUNER
PLL TUNER
SCARTS
SCART AUDIO INPUT SCART RGB/FB
S-VIDEO AUDIO
S-VIDEO AUDIO IN
LCD
S-VIDEO
S-VIDEO Y/C IN
AV OUT PC INPUT PC/DVI AUDIO HDMi INPUT
DVI-D (Single Link) INPUT
YpPbPr INPUT
FRONT AV HEADPHONE
VCTi
. MICOM . VIDEO DECODER. . AUDIO DECODER . TXT DECODER . IF DEM
TW9906
.VIDEO DECODER
74HC4052 AUDIO S/W
PIP CVBS
PC AUDIO INPUT
WM8725
AUDIO
DECODER
TPA6110
HP AMP
HDMi AUDIO INPUT
YPbPR AUDIO INPUT
TPA3004
AUDIO
AMP
MST6***
SCALER .OSD DEINTERLACE. PIP
MTV512
SUB MICOM IP PORT EXT CTRL.
FLASH
(512K) SRAM
(4M)
SCART CVBS INPUT
SCART AUDIO OUT
AV AUDIO OUT
A
V CVBS OUT
V
GA INPUT
SIDE AV AUDIO INPUT
SIDE AV CVBS INPUT
MAIN SPEAKER L/R
ITU656
ITU656
DDR RAM
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26'' - 32 '' LCD-TV PT1000 Service Manual
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17

+5VS +5V_OFF +12V
AC INPUT
POWER BOARD
RC1117_3. +3.3V_SCALER
+5V_OFF
+3.3V_VID
RC1117_2. +2.5V_SCALER
+5V_OFF
+2.5V_VID
RC1117_1. +1.8V_SCALER
+5V_OFF
+1.8V_VCTi
7808
+12V +8V
7805
+12V +5V_TUNER
RC1117_3.
+5VS +3.3V_MICOM
4069 +33V
+8V
TUNER
+5V +33V
DDC IC
24LC02
+5VS
EEPROM
24LC32
+3.3V_VID
EEPROM
24LC32
+3.3V_VID
SWITCH
4066
+5VS
DRAM
K6R4008V1
+3.3V_VID
FLASH
EN29LV040
+3.3V_VID
VIDEO/AUDIO/MAIN
MICOM
/TXT PROCESSOR
VCTi
+3.3V_VID +1.8V_VCTi +5V_TUNER
+8V
SWITCH
4052
+8V
AUDIO AMP
TPA3004
+12V
H.P
AMP
TPA611
0A2
+5V_OFF
SCALER
MST6181LDA
+2.5V_SCALER
+1.8V_SCALER+3.3V_SCALER
I2S
AUDIO
WM872
5
+5V_TUNER
DDR RAM
+2.5V_SCALER
SUB
MCU
MTV512
+5VS
PIP VIDEO DECODER
TW9906
+2.5V_VID+3.3V_VID
POWER BLOCK DIAGRAM
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26'' - 32 '' LCD-TV PT1000 Service Manual
__________________________________________________________________________________________________________________
18

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I2C BLOCK DIAGRAM
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26'' - 32 '' LCD-TV PT1000 Service Manual
__________________________________________________________________________________________________________________
19

1) J916: For IR, LED - Wafer
Pin No. Symbol Description I/O Remarks
1 LED-WARNING
2 LED-RED LED drive for RED Color O
3 GND Ground
4 IR-RCVR IR Receive Signal I
5 5V 5V Power for IR Receiver O
2) J917: For Local Key - Wafer
Pin No. Symbol Description I/O Remarks
1 KEY-AD1 Local Key Value Detection I
2 GND Ground
3) J909: For Debugging - Wafer
Pin No. Symbol Description I/O Remarks
1 VCT_RXD Receiver Line O
2 VCT_TXD Transmitter Line I
3 GND Ground
4 3.3V_VID 3.3V Power for Debugging Tool O
4) J912: For Debugging - Wafer
Pin No. Symbol Description I/O Remarks
1 VCT_SDA Data Line B DPMS AMBER
2 VCT_SCL Clock Line B
3 GND Ground
5) J915: For HDCP Writing - Wafer
Pin No. Symbol Description I/O Remarks
1 GND Ground
2 EEPROM_SCL Clock Line B
3 EEPROM_SDA Data Line B DPMS AMBER
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26'' - 32 '' LCD-TV PT1000 Service Manual
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20