Page 1
Page 2
INDEX
1. Safety Precautions.
2. Product Specification.
- General Specification
- RGB/DVI Spec
- DTV Mode Spec
- CHASSIS / FUNTION General Spec.
- Engineering Spec.
3. Service Mode Adjustment.
4. Firmware upgrade
5. Adjustment Standard
6. Remote Controller(PAL/SECAM)
7. Trouble Shooting
- POWER Trouble
- SCREEN Trouble
- SOUND Trouble
8. Block Diagram
Page 3
9. Circuit Diagram
- MAIN BOARD
- POWER BOARD (SMPS)
10. BOM (Parts List)
- MAIN BOARD
- POWER BOARD (SMPS)
11. Assembly Diagram
1. Safety precautions
* General details
1) When providing service, pay attention to the basic wiring and if you see a short circuit, you must replace
all parts overheated or damaged by the short circuit.
2) After the service, check if the all elements for protection with insulation layer, insulation paper and shield
R-C composite element are well assembled.
3) When not watching the TV for a long period of time, unplug the power cord.
4) Because the high voltage goes through the power (SMPS) when the TV is operating, it is dangerous from
electric shock to operate the TV with the back cover open. Repairing must only be done by a repair
technician who has adequate knowledge about the high voltage.
5) After completing the service, the repair technician must inspect the following electric current leakage to
protect the user from electric shock.
6) Always check if all the internal protection devices are installed. If there is a protection plate, directly
install it.
7) After completely assembling the set, plug the AC line cord to the power outlet. Set the power switch to on
and then turn it off. Measure the current between the earth (GND) and antenna, metal parts, projected
metal parts such as screw heads. The measured current should not exceed 3.5mA.
Page 4
8) Never change the design or add to the design of the device or electric circuit for this set. If you add to
the design, it can cause danger to the safety. Also if you change the design or add to the design, the
manufacturer’s warranty would be ineffective.
9) If the parts, material or the wiring seem to be overheated or damaged, immediately replace the parts in
accordance with the original specification. Always understand the root cause of the overheating or
damage and correct the danger factors if possible.
10) Some electric circuit parts and device parts have special safety related characteristics that cannot be
judged with the eye. If you replace the parts with a different part with higher voltage, wattage etc, it will
lose the safety characteristics and protection function. Therefore you must use the same part as the one
installed as much as possible.
11) After the repair, always check if the screw, part and wiring are correctly installed. Check if the adjacent
area of the repaired part is damaged.
12) There are some semiconductor devices that can be easily damaged by electricity. When handling these
parts, use the static electricity detection device (ESD) to remove the electrode in the human body.
* Electric current leakage test (Cold Check)
1) Unplug the AC power and connect the ends of the plug with a wire.
2) Turn on the power switch.
3) Connect one end of the insulation tester on one of the leads and connect the other lead to an exposed
metallic part such as antenna, screw, variable adjustor axis etc. for measurement. The resistance value of
the exposed metal part that is connected to the chassis or not connected to the chassis must be infinite
(∞).
* Electric current leakage test (Hot Check)
1) Directly plug the power to the power outlet.
(At this time, do not use the insulation transformer during the test.)
2) Connect one side of the 1.0KΩ, 10W resistance to the exposed metal part of the TV and earth the other
side(location where it is easy to earth such as water pipe etc.) (Refer to the fig.)
3) Measure the voltage of both ends by using the AC voltage meter (1000Ω volt to higher sensitivity).
4) Measure the voltage of each exposed part of the TV.
5) Switch and plug the power plug (opposite electrode) and repeat the measurement.
Page 5
6) The voltage should not exceed 0.75V in any location and the current leakage must not exceed 0.75mA.
* service precautions
1) When inserting the part or circuit board, you must keep the lead wire fixed to the end before soldering.
2) When inserting the high power resistance, leave about 10mm clearance from the board (metal oxidation
coated resistance or metal coated resistance).
3) Parts with high voltage or high temperature must be kept far from the lead wire.
4) For this chassis, use the cold chassis or insulation transformer for the safety. When repairing the power part,
always use the insulation transformer.
5) When operating the TV, do not connect or remove the wire.
6) Marked parts are important parts to maintain the safety of the part. Therefore, when exchanging the part,
always use the designated part.
S
2. Product Specification.
* Scope
This specification applies to all LCD TV models with VCB4430 chassis.
* Operating condition
1) Surrounding temperature: 25℃ ± 2℃
2) Relative humidity: 65% ± 10%
3) Power voltage (AC 110 – 240V, 50/60Hz)
4) For measurement, pre-operate the TV for more than 15 minutes.
◆ General Specification.
Page 6
- AV320PD
32”
PC Analog RGB 15 pin D-Sub Input
SCART(half)
Composite Input * 2
S-Video Input * 1
Component Input * 1
Video
HDMI Input
Composite RCA L/R Input * 2
SCART(half)
Component RCA L/R Input *1
Headphone Output * 1
In/Out
Audio
PC/DVI Audio Input * 1
Antenna 75Ω Coaxial cable
Color System PAL/SECAM
Sound System B, G, D, K, I, L(for EU)
Stereo Type Nicam stereo, Nicam mono, mono, A2
RF Signal
Text TTX 256 page
Power Consumption 160 Watts
Power Save Mode Less than 5 Watts
Speaker 10 Watts *2
Plug & Play DDC 1/2 B
Screen Control 16 Colour On Screen Display Menu, Bit Map
Remote Controller Yes
Net 20.1Kg Weight
Gross 24.6Kg
Others
Dimension 932(W) * 238(D) *567(H)cm : Speaker(stand include)
◆ RGB/DVI Mode Spec.
Resolution H
Frequency(KHz)
V
Frequency(Hz)
Pixel
Frequency(MHz)
Comment
640 * 350 31.469 70.087 25.175 IBM
640 * 480 31.469 59.94 25.175 IBM
640 * 480 35.000 66.667 30.24 MAC
640 * 480 37.861 72.809 29.765 VESA
640 * 480 37.500 75 31.5 VESA
720 * 400 31.469 70.087 28.332 IBM
Page 7
800 * 600 35.156 56.25 36.0 VESA
800 * 600 37.879 60.317 40.0 VESA
800 * 600 48.077 72.188 50.0 VESA
800 * 600 46.875 75.0 49.5 VESA
832 * 624 49.726 74.551 57.284 MAC
1024 * 768 48.780 60.001 64.11 MAC
1024 * 768 48.363 60.004 65.0 VESA
1024 * 768 56.476 70.069 75.0 VESA
1024 * 768 60.241 74.927 81.724 MAC
1024 * 768 60.030 75.029 78.75 VESA
1152 * 864 67.500 75.0 104.993 VESA
1152 * 870 68.681 75.062 100.0 MAC
1280 * 768 47.700 60.0 80.136
1360 * 768 47.700 60.0 80.136
◆ DTV Mode Spec
Resolution
H
Frequency(KHz)
V
Frequency(Hz)
Pixel
Frequency(MHz)
Comment
720 * 480 15.735 59.94 13.500 SDTV,DVD 480i
720 * 576 15.735 50.0 13.595 SDTV,DVD 576i
720 * 480 31.469 59.94 25.175 SDTV, 480p
720 * 576 31.250 50.0 26.566 SDTV, 576p
1280 * 720 44.964 59.94 74.176 HDTV, 720p
1280 * 720 37.500 50.0 60.466 HDTV, 720p
1920 * 1080 33.750 60.0 74.25 HDTV, 1080i
1920 * 1080 28.125 50.0 70.723 HDTV, 1080i
◆ SHASSIS / FUNTION General Spec.
NO ITEM DESCRIPTION REMARK
1 MODEL NAME VCB4430
Marker LG Philips LCD 2 TARGET PANEL
Type LCD LC260W02 LC320W02
Type D-SUB 15p *1, HDMI * 1 3 RGB/HDMI
Frequency H:31∼80KHz, V:56∼75Hz
Page 8
Type RCA Jack (Green, Blue, Red)*1
480i: 59.94/60Hz, 480p: 59.94/60Hz
765i:50Hz, 765p: 50Hz
4 COMPONENT
Mode
720p: 59.94/60Hz, 1080i: 50/59.94/60Hz
SD and HD
CVBS: RCA Jack(yellow)*1, VCB4430
Half SCART *1 VCB4430
Type
SVHS: Mini-Din 4P *1. Auto Select
5 VIDEO INPUT
System PAL, SECAM
6 AV OUTPUT Selected TV, Video and Audio Out through SCART EU
7 AUDIO INPUT 3.5Ф Phone Jack*2 for PC
8 AUDIO OUTPUT Connector for Internal *1
9 TUNER Din Connector * 1 (inter Bridge for sub tuner)
LOCAL MENU, SELECT(SOURCE), DOWN, UP, LEFT, RIGHT, POWER, LED 10 CONT
ROL
REMOTE Infrared- Rays NEC Format
Dynamic/Standard/Mild/Game/;User PSM
User Brightness, Contrast, Color, Sharpness
CSM CSM/ Brightness/ Contrast
CSM Normal/Warm/User
PICTURE
User Red/Green/Blue
Effect Flat/Music/Movie/Speech/User
User Bass, Treble
Surround On/Off, Normal, Spatial
AVL On/Off
AUDIO
Balance L(-10)----0---- R(10)
PIP,
POP
Source, Swap, PIP size,
PIP position
PIP/POP/P
BP
On/Off ON
PBP Source, Swap
Language English/ Deutsch/Francois/Italiano/ Espanol EU
Language China, English HK
Transparency 50(1 ∼ 100)
Auto/16:9/14:9/4:3 AV/TV Aspect
4:3/16:9 PC
Factory Reset On/Off
11 OSD
GUI
Setup
Time Clock/Off Time/On Time/Audio off
PIP/PBP Mode Supporting
SUB
MAIN
TV AV1 AV2 COMPONENT RGB HDMI
TV ⅹ ⅹ ⅹ ○ ○ ○
AV1 ⅹ ⅹ ○ ○ ○
AV2 ⅹ ⅹ ○ ○ ○
COMPONEN ○ ○ ○ ⅹ ⅹ
Page 9
T
RGB ○ ○ ○ ⅹ ⅹ
HDMI ○ ○ ○ ⅹ ⅹ
◆ Engineering Specification
NO Item ription Remark Desc
Min Typ Max
For Audio
V(Voltage)
11.4 12 12.6
For Stand-by 4.8 5 5.2 V
For Logic 5 5.4.8 2 V
1
POWER
SUPPLY
33
For Tuner 32.5 33 .5 V
DPMS Sync(V/H) VIDEO Power(V/A) state LED
Stand By, Sleep & Suspend Mode n/o ff Off/on & o ff O ≤ 3W Amber
2
POWER OFF - -
≤ 3w off
Typical 10Wrms + 10Wrms Volume: Adjust
3 Audio
Max s + 12Wrms olume: Max
POWER
12Wrm V
Response Frequency KHz10% 100Hz∼10
T.H.D 10%
Input 0.7Vrms
4 AMP
S/N 40dB
Type External
5 Speaker
Impedance
8Ω
System CAM PAL/SE
Tuning er System Frequency Synthesiz
1)VHF
Low: 46.25 ∼127.25 Hz M
High: 133.25 ∼ 361.25 MHz
2)UHF
Channel
Hz
367.25 ∼ 863.25 M
System PAL/SECAM
Tuning esizer System Frequency Synth
Channel 1)AIR
55.25 ∼ 801.25 MHz
2)CATV
6 TV System
5
73.25 ∼ 799.2 MHz
Video Level
0.7
±0.15
V p-p 75ΩTermination
Sync Level 0.268±0.075 nation V p-p 75ΩTermi
Color Level 72 0.214±0.0 V p-p 75ΩTermination
7 AV
Audio Level put
0.7±0.1 V rms PC In
Page 10
0.5±0.05 s TSC V rm N
0.4±0.05 V rms PAL
Video Cross-Talk 43 dB
3. S
u pres MENU + MUTE + I/II Button on remote controller.
SERVICE MENU VERSION
ervice mode Adjustment
Move to Factory Men sing
V1.0 Remarks
BLE MODE Do not change the value which is currently set.
BLE GAIN Do not change the value which is currently set.
BLE
BLE TILT Do not change the value which is currently set.
LTI CORING Do not change the value which is currently set. FAC LTI
LTI GAIN Do not change the value which is currently set.
CTI CORING Do not change the value which is currently set. FAC CTI
CTI GAIN Do not change the value which is currently set.
PEAK POS Do not change the value which is currently set.
PEAK NEG Do not change the value which is currently set.
FAC PEAK
ORING
PEAK C Do not change the value which is currently set.
BRI Do not change the value which is currently set.
CONT Do not change the value which is currently set.
VCTI
T
CB SA Do not change the value which is currently set.
CR SAT Do not change the value which is currently set.
TINT Do not change the value which is currently set.
R GAIN Do not change the value which is currently set.
G GAIN Do not change the value which is currently set.
SCART RGB
GAIN
B Do not change the value which is currently set.
6C R Do not change the value which is currently set.
6C G Do not change the value which is currently set.
6C B Do not change the value which is currently set.
6C M Do not change the value which is currently set.
6C Y Do not change the value which is currently set.
6C F Do not change the value which is currently set.
MSTAR
UM
SPECTR Do not change the value which is currently set.
R GAIN Do not change the value which is currently set.
G GAIN Do not change the value which is currently set.
B GAIN Do not change the value which is currently set.
R OFFSET Do not change the value which is currently set.
ADJUST
G OFFSET Do not change the value which is currently set.
Page 11
B OFFSET Do not change the value which is currently set.
SUB CON Do not change the value which is currently set.
SUB BRI Do not change the value which is currently set.
AUTO COLOR Do not change the value which is currently set.
TTX AREA Do not change the value which is currently set.
TTX TOP Do not change the value which is currently set.
LANGUGAE Do not change the value which is currently set.
PANEL Do not change the value which is currently set.
TUNER Do not change the value which is currently set.
PIN ON Do not change the value which is currently set.
OPTION
CART s currently set.
S Do not change the value which i
RESET Used to reset to factory default
EDID/HDCP ON/OFF
Used to transfer EDID/HDCP data
..(NO/YES)
ISP ON/OFF Used to update the program. (NO/YES)
4.
2. Move to Factory Menu using Service Remote Controller or User Remote Controller.
Firmware upgrade
- How to use Download Program and Cable Connection.
PC Jig for VCT or MTV Target SET
Parallel
Cable
DSUB Cable
1. Turn on the POWER.
Page 12
3.
Uncompress the ISP_update_programmming.zip file.
4. T
rt95nt.exe when you are using Windows95 Operating System.
- setup_LptDrvDev Dev_v020201_XP_2000.exe
indows2000 Operating System.
5. E file.
========== CONTENT ====================================
########
------------------
Write Flash --------------------
here are two files in DRIVER folder.
- port95nt.exe : Execute po
_v020201_XP_2000.exe : Execute setup_LptDrv
When you are using W
dit the ISP\VCT\ISP.BAT
===================
echo ####################################
echo --------------------------
echo -----------
echo --------------------------------------------
REM vctidown -wf mst.bin
vctidown -wf -s2 ..\..
\SrcCode\BinHex\VCB4430_1.bin
Page 13
vctidown -rv > RdVer.txt
vctidown -rv > RdVer.txt
vctidown -rv > RdVer.txt
fc VctF2Ver.txt RdVer.txt
if errorlevel 1 goto FAIL
vctidown –rv
===============================================================
You should make \SrcCode\BinHex\VCB4430_1.bin folder and the name of Firmware(VCB4430
can be redefined by user. The name of the file in the folder and the file in ips.bat must be identical.
In addition, the firmware to be updated must be located in the folder of \SrcCode\BinHex.
Execute ISP\VCT\ISP.BAT.
_1.bin)
6.
- wing is shown:
own
If ISP Fail is shown, or the follo
*****VctF2Ver.txt
Boot loader Version: 16h,
***** RDVER.TXT
Boot loader Version: 03h
Then, edit ISP\VCT\VctF2Ver.txt. Change to 03h.
If the following is shown:
***** RDVER.TXT
Boot loader Version: 03h
When the value of 03h is different, then revise the value in the VctF2Ver.txt file to the one sh
on the screen (03h) and save.
Page 14
7
5. Adjustment Standard
1. Sc
Th
2. S
1) ever,
i een the power line
and input side of chassis and then start operation.
ust exactly follow the procedure. However, it may be modified considering the productivity.
3 temperature of
idity of 65±10%.
4 oltage of receiver should be maintained at 220V, 60Hz.
5 , the receiver should be started the operation prior to the adjustment for
about 15 minutes.
eration should be performed after receiving 100% White Pattern of pattern generator.
②
a separate signal generator in this MODE.
hen the screen is kept still more than 20 minutes, “After-image” around black level may occur
(especially for Digital pattern or Cross Hatch pattern which have clear white/black colors).
3. Adjustment Items
1) EDID (The Extended Display Identification Data)/DDC (Display Data Channel) download
2) AD9883A-Set Adjustment
. When download is complete, “success” will be shown on the screen.
ope
is standard is applicable to all the models of LCD TV with VCB4430 Chassis (main board).
pecification
Since this chassis is non-chargeable with insulated power, insulated-type transformer is not required. How
n order to protect the adjustment, it is recommended to use insulated-type transformer betw
2) The adjustment m
) Without any other specification, the adjustment should be performed under the surrounding
25±5℃ and the relative hum
) When adjustment, the input v
) Without any other specification
● The pre-op
● How to Enter Not Used Patten generator White Pattern
① Enter SETUP by pressing MENU KEY on the adjustment R/C.
After entering ISM MODE using arrow keys of R/C in the SETUP, select White to show 100% FULL WHITE
PATTERN.
* The set can be “Heatrun” without
(Caution) W
Page 15
3) White Balance Adjustment
4) Main/Sub Color Adjustment
4. Adjustment
- EDID (The Extended Display Identification Data)/DDC (Display Data Channel) download
1) The information is exchanged without user’s command to PC or monitor since they are specified in VESA. In
other words, the function is made for “Plug and Play” which reconfigures user’s environment to be used in no
time while automatically communicating with monitor.
2) EDID DATA for DVI of VCB4430
EDID table
3) EDID DATA for RGV of VCB4430
EDID table =
Page 16
5
1)
ern (The pattern type is shown in the
following figure and the caution should be used not to confused with 75% color bar which is a similar pattern) and
the level of output should be precisely adjusted within 0.7±0.1Vp-p).
. AD9883A-Set adjust
Introduction
Analog Adjustment for AD9883A-Set => This is a function for the optimal level of black and gain to be
automatically set from digital converter and RGB variation to be adjusted.
2) Used Equipment
Pattern Generator(capable of generating 720P Vertical 100% Color Bar Patt
<Figure 1> Adjustment Pattern: 720P Vertical Color Bar>
3) Adjustment Method
① Input 100% Vertical Color Bar Pattern (TVBAR_100) in 720P Mode which may be supported for Component
input, and then select Component1 or Component2 for input and “STANDARD” for image.
② Wait for more than a second after receiving signal and press S.SELECT on adjustment R/C (Service remote
controller) while selecting “WB Adjust” for automatic adjustment.
③ In case of abnormal adjustment, perform the re-adjustment after confirming Patter or adjustment condition.
6. Remote o AL/SE
④ When adjustment is done, exit the adjustment mode pressing S.SELECT.
C ntroller (P CAM)
Page 17
A proper output mode of soun tched.
.(Custom, Standard, Music, Movi
EMARK
d can be selected as per the type of program being wa
e, Speech)
KEY FUNTION R
1 POWER Turns the display On or off
2 NUMBER Direct channel select. Direct page selection Teletext display.
3
TV/AV tton, It converts to TV input mode and, if you press and hold the bu
input mode will be switched.
4
PSM ferred picture setting. (Dynamic, Standard, Game,
Recalls your pre
Mild, User)
5 MENU Displays OSD Menu.
6
VOL ◀▶ SD
e sub-menu
Increases or decreases the volume. Also used to select the O
main menu, to select the OSD main menu, to select th
or to change the values in sub-menus.
7
TEXT ON
the TV picture, TV mode.
Changes Teletext mode. Only Teletext mode, text mode
superimposed on
8
e
n. Press the button again to exit the
TIME When viewing a TV program, press this button to display the tim
at the top right corner of the screen. Press the button again to
remove the display. In Teletext mode press the button to select
and hold or change a four-digit sub-page number. This is displayed
along the bottom of the scree
function.
9 INDEX rrent Page to the INDEX Page. Converts from the cu
10
at the top left corner of the
ge
umber. Press this button to view the updated Teletext
UPDATE Displays the TV picture on the screen while waiting for the new
Teletext page. The display will appear
screen. When the update page is available then display will chan
to the page n
page
11
TELETEXT
REEN key.
RED: Converts to the Page linked to the RED key.
GREEN: Converts to the Page linked to the G
YELLOW: Converts to the Page linked to the YELLOW key.
Page 18
BLUE: Converts to the Page linked to the BLUE key.
12 INPUT Changes the screen size. PIP input source.
13
PIP rge), PBP1, PBP2
Changes the screen size. PIP(Small), PIP(La
screen change.
14 SLEEP Sets the sleep timer. The apparatus is automatically turned off
15 Swaps the main screen for a sub-screen (only in PIP, PBP mode) SWAP
16
ARC You can watch the LCD Display in various picture formats, Auto,
ess the ARC button to select
4:3, 16:9, 14:9, Zoom. Repeatedly pr
your chosen picture format.
17
PIP PR l
p.
Use this button when PIP Input is set to TV to perform PIP Channe
Down/U
18
POSITION rent corner locations. Changes the PIP sub-window to 4 diffe
PIP Position Change(PIP Mode only)
19
HOLD en
Maintain the Page content as currently displayed, if it has be
changed.
20 REVEAL Shows letters that are hidden (not displayed)
21
SIZE )even, though they are
included in the currently displayed Page
Selects letters that are hidden (not displayed
22
MODE Toggles between list mode and current. Text mode(FLOF,TOP or
normal)
23
MIX The teletext pages and the TV picture are displayed
simultaneously on both sides of the screen.
24
PR▲/▼,
TELETEXT
PREVIOUS/NEX
T PAGE
Press PR▲/▼ to change channels. Also used to select in the OSD
menu or select the channel providing teletext service.
25 OK Select sub-menu or fix user setting
26 MUTE Press to temporarily cut off the sound
27
SSM Recalls your preferred sound setting(Flat, Music, Movie, Speech,
User)
28 Dual I II Press to choose dual stereo or mono
29
PRE-PR It goes from the channel you are currently viewing back to the
channel you were previously watching(Quick Search View
Function.
30
SOURCE Selects the external input source.(TV, SCRAT, AV1, AV2, S-
VIDEO, COMPONENT, PC INPUT, HDMI)
Page 19
7. Trouble Shooting
- Power Related Troubles
There is NO POWER (Front Panel LED OFF)
Connect Connector
Check the
Connectors
Related to Power
Check Standby
Voltage.
Check Chassis
(VCB4430) Connector.
Replace CHASSIS(VCB3000)
Check Power ref.
Voltage:
Check Power CN401
in(1)~(2)
Check
Chassis(VCB3000)
U706(LT1117).
Check Standby
Voltage.
Pass
Fail
Fail
Fail
Fail
Pass
The Power of
SUB POWER
(master SW)
BOARD is OK?
Replace SUB POWER BOARD
Fail
Pass
Replace Power Board
Pass
Press POWER ON S/W
Page 20
- Screen Related Troubles
There is NO IMAGE.
Connect Connector.
Check the
connectors Related
to Power and
Check Standby
Voltage.
Check Chassis(VCB4430)
Connector.
J701 PIN(1)
Check Power ref.
Voltage:
Check Power CN401
Check Standby
Voltage
Check Chassis(VCB4430)
U706(LT1117)
Fail
Fail
Replace Power Board
Fail
Pass
CHASSIS(VCB4430)
The Power of
SUB POWER
BOARD is OK?
Replace SUB POWER BOARD.
Fail
Pass
Pass
Pass
Fail
Page 21
Confirm Normal Operation
Is the Power of 24V in
INVERTER Entered Normally?
POWER BOARD
CONNECTOR CN402,
CHASSIS의 CONNECTOR
J701 PIN(1) 5V,
PIN(5) INV ON PIN(9&10) 12V
are OK?
POWER BOARD REF.
CN401 PIN(1) 5V,
PIN(5) INV ON, PIN(9&10)
12V are OK?
Replace Power Board
After Allowing AC Power,
Press Sub Power Button and
Then Press Power of Remote or
OSD Button.
Fail
Replace CHASSIS (VCB4430)
Pass
Pass
Pass
Pass
Fail
Fail
Replace Power Board
Page 22
- Sound Related Troubles
There is NO SOUND.
Replace Power Board
Replace CHASSIS (VBC3002) BOARD
Replace Speaker
Check Power of Sound supply.
Check J701 9,10 24V in VCB4430
BOARD
Check Output of Speaker:
Check if there is output
signal of PIN(1) in VCB4430
board
J41, J42.
Fail
Pass
Pass
Check Power of Sound supply:
Check U502, PIN(33) 12V in
VCB4430 BOARD.
POWER BOARD REF.
CN401 PIN(1) 5V,
PIN(5) INV ON, PIN(9&10)
12V are OK?
Fail
Check CHASSIS (VBC3002) BOARD
Fail
Check CHASSIS (VBC3002) BOARD
Fail
Pass
Pass
Pass
Page 23
8. Block Diagarm
Page 24
9. Circuit Diagram
Page 25
- Main board
Page 26
Page 27
Page 28
Page 29
Page 30
Page 31
Page 32
- POWER BOARD (SMPS)
Page 33
10. BOM (Parts List)
- Main Board
Location Number
No Part number Parts Name Specification QTY
1 2 3 4 5 6 7 8 9 10
1 VMT-0072AB PWB(PCB) ASSY,MAIN VCB4430 MAIN TOTAL
1
VMH-0072AB
PWB(PCB) ASSY,MAIN VCB4430 MAIN
HAND INSERTING
1 BOARD LABEL VCB4450
1 JACK AUDIO PHONE JACK 3.5PIE
NINENEW SJ3501-5 H7
2 J44 J902
2 D-SUB 15F- BLUE DSH03A-15F-BU 15P D-S UB
2.29MM FEMALE RIGHT ANGLE
(육각 5.85mm 결합형)
1 J903
3 AV-JAC K
J/B 9P+DIN(RCA/Mini-Din 일체형)
1 J11
4 SCART JACK RC103 SCART JACK21P 2 J905 J907
5 WAFER SMW 250-12 12P YEON-HO
2.5mm STRAIGHT
1 J701
6 WAFER SMW 200-2 2P YEON-HO
2.0mm STRAIGHT
2 J41 J42
7 W AFER SMW200-3 3P YEON-HO
2.0mm STRAIGHT
2 J912 J915
8 W AFER SMW200-4 4P YEON-HO
2.0mm STRAIGHT
1 J909
9 W AFER SMW200-5 5P YEON-HO
2.0mm STRAIGHT
1 J45
10 WAFER SMW200- 10 10P YEON-HO
2.0mm STRAIGHT
1 J33
11 TUNER TECH2949PG40B- PAL SAMSUNG 1 U639
12 SAW FILTER,EPCOS X6966M-M100 IF filter for
digital cable TV (PAL 용)
1 U603
13 AXIAL,INDUCTOR AL04TB-122K 1.2m H//44MA
5.0MM==아비코
1 L602
14 AXIAL,INDUCTOR AL02TB-R33K 3.3UH//4 4MA
5.0MM==아비코
1 L601
15 Al. CAPCITOR/SAMYOUNG 470UF 16V M 8*11.5*5.0 SH
L-TYPE
3 C534 C603 C732
16 Al. CAPCITOR/SAMYOUNG 220UF 16V M 6.3*11*2.5 SH
L-TYPE
8 C536 C537 C626 C723 C724 C725 C726 C738
C535 C553 C712 C714 C716 C717 C785 C786 C791 C793 17 Al. CAPCITOR/SAMYOUNG 100UF 16V M 5*11*2.5
SHL -TYPE
12
C934 C935
Page 34
18 Al. CAPCITOR/SAMYOUNG 47UF 50V M 6.3*11*2.5 SHL-T YPE 5 C514 C515 C518 C524 C552
19 Al. CAPCITOR/SAMYOUNG 22UF 50V M 5* 11*2.5 SHL-TYPE 6 C367 C924 C929 C936 C937 C955
20 Al. CAPCITOR/SAMYOUNG 10UF 50V M 5*11*2.5 SHL-TYPE 5 C174 C176 C339 C602 C729
C333 C352 C353 C356 C357 C359 C361 C362 C363 C921 21 Al. CAPCITOR/SAMYOUNG 4.7UF 50V M 5*11*2.5 SHL-TYPE
13
C928 C932 C933
22 Al. CAPCITOR/SAMYOUNG 3.3UF 50V M 5*11*2.5 SHL-TYPE 1 C332
23 Al. CAPCITOR/SAMYOUNG 1UF 50V M 1*11*2.5 SHL-TYPE 2 C509 C510
24 DIODE 1N4148 1 D18
25 IC,EON FLASH ROM EN29LV040A-70 P
LCC32P
1 U303
26 HDMI_V_CON 51L019S-36DN-A HDMI 1 P402
27 IC,MICOM MTV512MV-PLCC44P-P127 1 U202
VMS-0072AB PWB(PCB) ASSY,MAIN VCB4430 MAIN SMT T OP
C166 C202 C210 C313 C315 C316 C317 C331 C347 C511
C512 C513 C526 C529 C531 C532 C637 C638 C643 C644
1 CAPACITOR, CHIP CERAMIC 1UF 10V K X7R 1608 R/T P
27
C707 C727 C740 C905 C906 C940 C941
2 CAPACITOR, CHIP CERAMIC 0.47UF 10V K X7R 1608 R/TP 2 C533 C790
C101 C102 C103 C104 C108 C109 C110 C111 C112 C113
C114 C127 C129 C130 C132 C133 C134 C135 C136 C137
C138 C139 C141 C143 C144 C145 C146 C147 C148 C149
C150 C151 C152 C153 C154 C155 C156 C157 C158 C159
C160 C161 C163 C164 C165 C167 C168 C169 C175 C177
C178 C179 C209 C301 C302 C303 C304 C305 C306 C307
C308 C309 C310 C311 C312 C314 C318 C319 C320 C321
C324 C325 C326 C329 C330 C334 C335 C336 C337 C338
C340 C341 C342 C343 C344 C346 C364 C413 C521 C522
C523 C525 C528 C705 C706 C710 C711 C713 C715 C718
C720 C721 C722 C728 C730 C739 C775 C776 C777 C778
C779 C781 C782 C783 C784 C787 C789 C792 C794 C799
3 CAPACITOR, CHIP CERAMIC 0.1UF 16V K X7R 1608 R/ TP
130
C901 C912 C914 C915 C916 C917 C918 C919 C946 C947
4 CAPACITOR, CHIP CERAMIC 47NF 50V K X7R 1608 R/T P 6 C948 C949 C950 C951 C953 C954
C516 C517 C519 C520 C539 C542 C548 C550 C601 C610 5 CAPACITOR, CHIP CERAMIC 10NF 50V K X7R 1608 R/T P
11
C795
C354 C355 C358
C360
C920 C922 C925 C926 C927 C931 6 CAPACITOR, CHIP CERAMIC 1500PF 50V J NP0 16 08 R/TP
16
C938 C939 C944 C945 C960 C961
C208 C327 C328 C538 C540 C541 C543 C544 C545 C546 7 CAPACITOR, CHIP CERAMIC 1NF 50V K X7R 1608 R/TP
17
C547 C549 C551 C780 C796 C910 C952
8 CAPACITOR, CHIP CERAMIC 220PF 50V J NP0 160 8 R/TP 1 C527
9 CAPACITOR, CHIP CERAMIC 100PF 50V J NP0 160 8 R/TP 1 C903
10 CAPACITOR, CHIP CERAMIC 68PF 50V J NP0 1608 R/TP 2 C205 C206
11 CAPACITOR, CHIP CERAMIC 33PF 50V J NP0 1608 R/TP 2 C203 C204
13 CAPACITOR, CHIP CERAMIC 22PF 50V J NP0 1608 R/TP 9 C105 C106 C170 C171 C172 C173 C322 C323 C902
Page 35
14 CAPACITOR, CHIP CERAMIC 20PF 50V J NP0 1608 R/TP 2 C623 C624
15 CAPACITOR, CHIP CERAMIC 15PF 50V J NP0 1608 R/TP 1 C645
16 CHIP RESISTOR 0 1/8W J 2012 D.R/TP 4 R529 R530 R547 R551
17 CHIP RESISTOR 1M 1/10W J 1608 D.R/TP 2 R118 R221
18 CHIP RESISTOR 120K 1/10W J 1608 D.R/TP 1 R540
19 CHIP RESISTOR 100K 1/10W J 1608 D.R/TP 2 R602 R771
20 CHIP RESISTOR 56K 1/10W J 1608 D.R/TP 4 R930 R949 R964 R965
21 CHIP RESISTOR 47K 1/10W J 1608 D.R/T P 7 R368 R534 R706 R707 R709 R712 R773
22 CHIP RESISTOR 43K 1/10W J 1608 D.R/TP 1 R535
23 CHIP RESISTOR 24K 1/10W J 1608 D.R/TP 1 R537
24 CHIP RESISTOR 18K 1/10W J 1608 D.R/TP 2 R958 R960
R228 R538 R560 R561 R911 R913 R935 R940 R941 R942 25 CHIP RESISTOR 15K 1/10W J 1608 D.R/TP
12
R954 R955
26 CHIP RESISTOR 12K 1/10W F 1608 D.R/TP 1 R141
R120 R121 R127 R134 R176 R177 R206 R208 R210 R212
R214 R216 R237 R239 R501 R505 R545 R546 R770 R902
27 CHIP RESISTOR 10K 1/10W J 1608 D.R/TP
28
R910 R939 R957 R959 R975 R984 R1282
R252
28 CHIP RESISTOR 10K 1/10W F 1608 D.R/TP 1 R144
29 CHIP RESISTOR 9.1K 1/10W F 1608 D.R/TP 1 R701
30 CHIP RESISTOR 8.2K 1/10W J 1608 D.R/TP 2 R536 R603
31 CHIP RESISTOR 6.8K 1/10W J 1608 D.R/TP 3 R336 R337 R338
32 CHIP RESISTOR 5.1K 1/10W J 1608 D.R/TP 2 R549 R550
R103 R114 R115 R116 R117 R171 R218 R243 R244 R245 33 CHIP RESISTOR 4.7K 1/10W J 1608 D.R/TP
19
R301 R302 R470 R472 R772 R936 R951 R982 R983
34 CHIP RESISTOR 3.3K 1/10W J 1608 D.R/TP 3 R532 R929 R974
35 CHIP RESISTOR 2.2K 1/10W J 1608 D.R/TP 1 R277
36 CHIP RESISTOR 2.7K 1/10W J 1608 D.R/TP 1 R907
R159 R233 R242 R255 R256 R257 R258 R259 R280 R363
R469 R482 R528 R539 R542 R552 R553 R558 R559 R905
37 CHIP RESISTOR 1K 1/10W J 1608 D.R/TP
26
R906 R908 R909 R1001 R3102 R3103
38 CHIP RESISTOR 1K 1/10W F 1608 D.R/TP 1 R702
39 CHIP RESISTOR 470 1/10W J 1608 D.R/TP 4 R175 R956 R961 R993
40 CHIP RESISTOR 390 1/10W J 1608 D.R/TP 1 R104
41 CHIP RESISTOR 330 1/10W J 1608 D.R/TP 4 R934 R950 R962 R963
42 CHIP RESISTOR 150 1/10W J 1608 D.R/TP 2 R971 R973
43 CHIP RESISTOR 140 1/10W J 1608 D.R/TP 2 R970 R972
R113 R139 R204 R215 R247 R251 R253 R254 R265 R305
R306 R307 R308 R311 R312 R313 R314 R315 R316 R317
R318 R381 R471 R473 R531 R621 R622 R774 R901 R912
R914 R919 R925 R926 R927 R928 R931 R932 R933 R948
R952 R953 R978 R979 R980 R981 R985 R986 R987 R988
44 CHIP RESISTOR 100 1/10W J 1608 D.R/TP 65
R989 R990 R991 R992 R1004 R1006 R1008 R1009 R1049 R105
Page 36
3
R3100 R3101 R3104 R3105 R3112
R321 R322 R323 R324 R326 R327 R329 R344 R458 R556 45 CHIP RESISTOR 75 1/10W J 1608 D.R/TP
19
R937 R947 R977 R994 R995 R996 R997 R998 R999
R140 R142 R143 R145 R146 R147 R148 R150 R151 R152
R153 R154 R155 R156 R157 R158 R166 R167 R172 R173
46 CHIP RESISTOR 22 1/10W J 1608 D.R/TP
22
R174 R178
47 CHIP RESISTOR 10 1/10W J 1608 D.R/TP
10 R105 R106 R107 R108 R109 R110 R111 R112 R274
R100
0
R184
R199 R226 R230 R269 R272 R319 R339 R345 R346
48 CHIP RESISTOR 0 1/10W J 1608 D.R/TP
18
R349 R352 R353 R374 R378 R481 R1145
R3116
RA113 RA114 RA115 RA116 RA117 RA118 RA119 RA120 RA121 RA12
2
49 CHIP ARRAY RESISTOR 22 M3216, ROHM, CHIP
ARRAY RESISTOR
14
RA123 RA125 RA126 RA12
7
50 CHIP ARRAY RESISTOR 33 M3216,ROHM, CHIP A RRAY RESISTOR
2
RA104 RA10
5
51 CHIP BEAD HB-1H1608-300 CERATEC 1608MM R/TP 3 L901 L902 L903
L106 L502 L503 L505 L506 L507 L508 L509 L510 L709 52 CHIP BEAD HH-1M2012-121 CERATEC 2012MM R/TP
12
L713 L714
53 IC,INTERGRAL REGULATOR 1.0A 1.8V IL-1117-18 2 U704 U705
54 IC,INTERGRAL REGULATOR 1.0A 2.5V IL-1117-25 2 U713 U714
55 IC,INTERGRAL REGULATOR 1.0A 3.3V IL-1117-33 3 U706 U715 U716
56 IC,INTERGRAL REGULATOR 1.0A 5.0V IL-1117-50 1 U95
57 TRANSISTOR A1504-SOT23 2 Q905 Q906
Q101 Q102 Q203 Q204
Q209 Q210 Q212
Q213 Q501 Q502 58 TRANSISTOR SAMSUNG TR KSC1623, KEC KT C3875
18
Q504 Q505 Q506 Q507 Q901 Q902 Q903 Q904
59 IC,ROHM BA17808FP 1A/8V Low drop-out volt
age type TO252-3
1 U702
60 IC,MICRONAS VIDEO-CONTROLLER-T EXT-IF-AUDIO I
C FAMILY VCTI49X-F2YIF MQFP144
1 U301
61 COIL,DACOWELL T PRH1208-330L SMD CHOKE 33UH 1 L701
62 IC,ANACHIP 150KHZ SIMPLE 3A STEP-DOWN
REGULATOR AP1501-ADJ
1 U701
63 DIODE KEC SOT-23 KDS184 2 D909 D913
64 IC,CATALIST 24WC02 8P SOIC T P EEPROM 2 U901 U902
65 IC,CATALIST 24WC32 8P SOIC T P EEPROM 1 U302
66 IC,ELPIDA EDD1232AAFA-7A-E 1M*32BIT *4 BANK
DDR SDRAM 250M 2.5V LQFP100
1 U102
67 IC K6R4008V1D 512Kx8 Bit
High Speed Static RAM(3.3V Operatin g).
1 U304
68 IC, MSTAR MST6181 LDA-LF LQFP256 1 U101
Page 37
69 IC WM8725-SOP14 865X600 P127 1 U103
70 IC,INTERNATIONAL RECTIFIER IRF7404 20V 3.1A SO-8
P-CHANNEL MOSFET
2 U708 U709
71 CRISTAL SX-1 SMS, 12MHZ CL 18PF 1 X201
72 CRISTAL SX-1 SMS, 14.318MHZ CL 18PF 1 Y101
73 CRISTAL SX-1 SMS, 20.250MHZ CL 18PF 1 X301
74 IC, TEXAS INSTRUMENT 10W ST EREO AUDIO POWER
AMPLIFIER TPA3004 QFP48P
1 U502
75 IC, TEXAS INSTRUMENT TPA6110A2 SOP-8P 150mW ST EREO
AUDIO POWER AMPLIFIER
1 U503
76 DIODE, SCHOTTKY SCHOTTKY POWER RECTIFIER
MBRS340 TP ON-SEMI NON 40V 3A
1 ZD701
77 IC, PHILIPS 4069 SOP 14P 1 U712
78 IC, PHILIPS 74HC4066 SOP 14P 2 U305 U306
79 IC, PHILIPS 74HC4052 SOP 16P 1 U307
80 DIODE UDZ S 33B TP ROHM-K SOD323 2 ZD707 ZD708
ZD506 ZD507 ZD508 ZD509 ZD510 ZD902 ZD903 ZD904 ZD905
ZD90
7
ZD908 ZD909 ZD910 ZD911 ZD912 ZD913 ZD914 ZD915 ZD916
ZD91
7
ZD918 ZD919 ZD920 ZD921 ZD922 ZD923 ZD924 ZD925 ZD926
ZD92
7
ZD928 ZD929 ZD930 ZD931 ZD932 ZD933 ZD934 ZD935 ZD936
ZD93
7
ZD938 ZD939 ZD940 ZD941 ZD942 ZD943 ZD944 ZD945 ZD946
ZD94
7
81 DIODE ZENER UDZ S 5.6B TP ROHM-K SO
D323 200MW 5.6V 5MA
57
ZD948 ZD949 ZD950 ZD951 ZD952 ZD953 ZD969
D701 D702 D703 D901 D902 D903 D904 D905 D906 D907 82 DIODE,SWITCHING BAV99 TP ON-SEMI
SOT-23 80V 300M
14
D908 D910 D911 D912
83 WAFER 12507WR-30 YEON-HO
30P 1.25MM Right Angle
1 J21
84 SOCKET SOCKET PLCC 32P
MAOYEE INDUSTRY
1 U303
85 SOCKET SOCKET PLCC 44P
MAOYEE INDUSTRY
1 U202
VPM-0072AB PCB VCB4450 VP M-0072AB
Page 38
- Power Board (SMPS)
Page 39
Page 40
Page 41
11. Assembly Diagram
Page 42
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