LG DT-50PY10 User manual

PLASMA TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : AF-046A
MODEL : DT-50PY10
website:http://biz.LGservice.com
e-mail:http://www.LGEservice.com/techsup.html
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- 2 -
CONTENTS
SAFETY PRECAUTIONS ...................................................................................3
DESCRIPTION OF CONTROLS ........................................................................ 4
SPECIFICATIONS .............................................................................................. 8
ADJUSTMENT INSTRUCTIONS ........................................................................9
TROUBLE SHOOTING GUIDE..........................................................................12
BLOCK DIAGRAM.............................................................................................26
EXPLODED VIEW..............................................................................................28
EXPLODED VIEW PARTS LIST........................................................................29
REPLACEMENT PARTS LIST...........................................................................30
SCHEMATIC DIAGRAM ........................................................................................
PRINTED CIRCUIT BOARD ..................................................................................
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- 3 -
SAFETY PRECAUTIONS
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in
the Schematic Diagram and Replacement Parts List.
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to
prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
General Guidance
An isolation Transformer should always be used during
the servicing of a receiver whose chassis is not isolated from
the AC power line. Use a transformer of adequate power rating
as this protects the technician from accidents resulting in
personal injury from electrical shocks.
It will also protect the receiver and it's components from being
damaged by accidental shorts of the circuitry that may be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this monitor is blown, replace
it with the specified.
When replacing a high wattage resistor (Oxide Metal Film
Resistor, over 1W), keep the resistor 10mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Due to high vacuum and large surface area of picture tube,
extreme care should be used in handling the Picture Tube.
Do not lift the Picture tube by it's Neck.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source,
connect an electrical jumper across the two AC plug prongs.
Place the AC switch in the on position, connect one lead of
ohm-meter to the AC plug prongs tied together and touch other
ohm-meter lead in turn to each exposed metallic parts such as
antenna terminals, phone jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1MΩ and 5.2MΩ.
When the exposed metal has no return path to the chassis the
reading must be infinite.
An other abnormality exists that must be corrected before the
receiver is returned to the customer.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check.
Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
between a known good earth ground (Water Pipe, Conduit, etc.)
and the exposed metallic parts.
Measure the AC voltage across the resistor using AC
voltmeter with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC
voltage measurements for each exposed metallic part. Any
voltage measured must not exceed 0.75 volt RMS which is
corresponds to 0.5mA.
In case any measurement is out of the limits specified, there is
possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
1.5 Kohm/10W
To Instrument's
exposed
METALLIC PARTS
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
AC Volt-meter
IMPORTANT SAFETY NOTICE
0.15uF
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- 4 -
Remote Control Key Functions
Remote Control Key Functions
- When using the remote control aim it at the remote control sensor of the set.
- There's maybe a defect in consecutive operation of remote control in specified brightness according to this set feature.
123
456
789
0
DVD
HDSTB
AUDIO
MODE
POWER
ARC
D/ATV
TV/AV
MULTIMEDIA
FAVOURITE
TEXT
MUTE
SLEEP
GUIDE
MENU
PIP PR-
TIME
PLAY
REW FF SKIP
PAUSE STOP RECORD
MIX INDEX REVEAL
PIP INPUT
I/II UPDATE SIZE STILL
PIP PR+ SWAP
EXIT
PSM SSM
OK
INFO
PIP
PR
VOL
CABLE
VCR
?
TV
LIST
displays the selected device.
D/A TV
selects analogue or digital mode.
MODE
selects another device.
NUMBER buttons
INFO
displays information on top of the
screen during watching the TV.
(In Digital mode only)
OK
accepts your selection or displays
the current mode.
DD/ EEor FF/ GG
adjusts menu settings.
selects menu item.
POWER
switches the set on from standby or
off to standby.
MULTIMEDIA
selects Component 1/2, RGB-DTV,
RGB-PC, DVI-DTV or DVI-PC modes.
switches the set on from standby.
ARC (Aspect Ratio Control)
changes the picture format.
TEXT
These buttons are used for teletext.
For further details, see the ‘Teletext’
section.
switches the subtitle on or off in Digital
mode.
Note : In teletext mode, the PIP PR +/-,
SWAPand PIP INPUT buttons are used
for teletext function.
VOL +/- (Volume Up/Down)
increases/decreases sound level.
PR +/- (Programme Up/Down)
selects a programme.
switches the set on from standby.
FAVOURITE
selects a favourite programme.
LIST
displays the programme table.
PIP
switches the sub picture on or off.
PIP PR +/-
selects a programme for the sub pic-
ture.
SWAP
alternates between main and sub
picture.
PIP INPUT
selects the input mode for the sub
picture.
EXIT
clears all on-screen displays and
returns to TV viewing from any
menu.
SSM (Sound Status Memory)
recalls your preferred sound setting.
DVD BUTTONS
controls a LG DVD player.
I/II
selects the sound output or the audio
mode.
TV/AV
selects the remote operating mode.
switches the set on from standby.
SLEEP
sets the sleep timer.
MUTE
switches the sound on or off.
GUIDE
shows a programme schedule.
(In Digital mode only)
VCR BUTTONS
controls a LG video cassette
recorder.
PSM (Picture Status Memory)
recalls your preferred picture setting.
MENU
selects a menu.
DESCRIPTION OF CONTROLS
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- 5 -
Location and Function of Controls
Location and Function of Controls
<Front Panel Controls>
TV/AVON/OFF MENU VOL PR
Main Power Button
Remote Control Sensor
TV/AV Button
selects the TV, AV, Component,
RGB or DVI modes. If OSD is dis-
played, selects menu item.
switches the set on from standby.
MENU
displays on screen menus one by one.
exits the current menu.
memorizes menu changes.
DD/ EE(Programme Up/Down)
selects a programme or a menu item.
switches the set on from standby.
FF/ GG(Volume Up/Down)
adjusts the volume.
adjusts menu settings.
Power Standby Indicator
Illuminates red in standby
mode, Illuminates green
when the set is turned on
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- 6 -
REMOTE
CONTROL DVI
INPUT
COMPONENT 1
INPUT
OUTPUT
DVI INPUT
(PC/DTV)
RGB INPUT
(PC/DTV)
UPGRADE
PORT
S-VIDEO
MONITOR
OUTPUT
A/V
INPUT 1
Antenna
ANALOG/DTV
AUDIO INPUT VIDEO INPUT
AUDIO VIDEO
AUDIO INPUT
DIGITALAUDIO (OPTICAL)
COMPONENT 2
DVD
DTV
INPUT
.
COMPONENT 1
R L R L AC INPUT
Location and Function of Controls
Location and Function of Controls
<Back Panel>
1. UPGRADE PORT
This port is used to upgrade the software version and debug
without changing the hardware.
Be careful not to use this port. Just contact your dealer or ser-
vice centre.
2. CONTROL LOCK / REMOTE CONTROL
3. DVI INPUT/COMPONENT 1 INPUT/OUTPUT (DIGITAL
AUDIO (OPTICAL))
Connect digital audio from various types of equipment.
Note: In standby mode, these ports will not work.
4. DVI INPUT / AUDIO INPUT / RGB INPUT (PC/DTV)
Connect the monitor output socket of the PERSONAL COM-
PUTER to this socket.
Note: If you want to use RGB/DVI audio, we strongly recom-
mend that you use the cable that has a core, or the EMI Filter
core along with separate cable.
5. COMPONENT INPUT
Connect DVD video outputs to Y, PB, PRof COMPONENT
INPUT and audio outputs to Audio sockets of AUDIO INPUT.
6. AUDIO/VIDEO IN SOCKETS (A/V INPUT 1)
Connect the audio/video out sockets of external equipment to
these sockets.
S-VIDEO/AUDIO IN SOCKETS
Connect the S-VIDEO out socket of the VCR to the S-VIDEO
socket.
Connect the audio out sockets of the VCR to the audio sock-
ets as in A/V INPUT 1.
7. ANTENNA INPUT
8. POWER CORD SOCKET
This Monitor operates on an AC power. The voltage is indi-
cated on the Specifications page. Never attempt to operate
the Monitor on DC power.
9. AUDIO/VIDEO IN SOCKETS (A/V INPUT 2)
S-VIDEO/AUDIO IN SOCKETS
9
S-VIDEOVIDEOAUDIO
A/V INPUT 2
R
L/MONO
4 5 6 7 81 2 3
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- 7 -
AS mark
LG TV
Owner’s Manual
1.5V
1.5V
Alkaline batteries
Power Cord
1 2 3
4 5 6
7 8 9
0
DVD
STB
AUDIO
MODE
POWER
MUTE
TV/AV
MULTIMEDIA
ARC
SSM
Q.VIEW
PSM
FAVOURITE
MENU
PIPPR-
REVEAL
LIST
PLAY
REW FF SKIP
PAUSE STOP
RECORD
SPLITZOOM
SLEEP
I/II
WIN.SIZE WIN.POSITION
PIPINPUT
PIPPR+ SWAP
OK
PIP/DW
EXIT
PR
VOL
CABLE
VCR
?
TV
TEXT/
Remote Control handset
-Optional extras can be changed or modified for quality improvement without any notification new optional extras can be
added.
- Contract your dealer for buying these items.
Optional Extras
Accessories
Accessories
Video cables Audio cables
6-RING SPACER
(Only DT-60PY10 series)
2-TV bracket bolts
(or DT-50PY10 series: 4-TV
bracket bolts)
(Only DT-60PY10 series : 6-Wall
mounting bracket bolts)
Ceiling mounting bracket
Wall mounting bracket
(Only DT-60PY10 series) Tilt wall mounting bracket
(Only DT-60PY10 series)
Tilt wall mounting bracket
404250 40 42 50
Ceiling mounting bracket
40
42
50
42
40
2-TV brackets
2-Wall brackets (option)
- Secure the TV assembly by joinning it to a wall by using the TV/Wall brackets.
Joinning the TV assembly to the wall to protect the set tumbling
•After the set must be mounted on s desk top, install the TV brackets on the TV as shown.
Insert the 2 bolts and tighten securely, in the holes on the bracket.
(Only DT-50PY10 series:After removing the existing bolts, insert the 4 bolts and tighten secure-
ly, in the holes on the bracket.)
Install the wall brackets on the wall with 4 bolts, (not supplied with the product), as shown.
Match the height of the TV brackets and the wall brackets.
Check to be sure the brackets are tightened securely.
• Secure the TV assembly to the wall with strong strings or wound wire cables, (not supplied
with the product), as shown.
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Maker : SONY(42 inch)
SONY/Sanken(50 inch)
LG(60 inch)
RGB Closed Type
Maker : LG Chemical
- 8 -
SPECIFICATIONS
NOTE : Specifications and others are subject to change without notice for improvement .
PAL-B/G, DTV : DVB-T
VHF : 00~12
UHF : 28~69
CATV : 02~44
PAL : 38.90MHz
DVB-T : 36.167MHz
240V~, 50Hz
PDP42X2xxxx
PDP50X2xxxx
PDP60X5xxxx
16:9
45% Total light transmittance(E-Mesh)
040 deg
85 %
-20 60 deg
85 %
1
2
3
4
5
6
7
8
9
10
11
Broadcasting system
Available Channel
Tuner IF
Input Voltage
PDP Module
Aspect ratio
Screen Filter
Operating Temperature
Operating Humidity
Storage Temperature
Storage Humidity
VGeneral Specification
Specification
MIN Typ Max Unit
No Item Remark
VApplication Range
This spec is applied to the 42”, 50”, 60”PDP TV used AF-046A
Chassis.
V Specification
Each part is tested as below without special appointment.
1) Temperature : 25¡5°C (77±9°F)
2) Relative Humidity: 65¡10%
3) Power Voltage: Standard Input voltage (100-240V~, 50/60Hz)
* Standard Voltage of each product is marked by models.
4) Specification and performance of each parts are followed
each drawing and specification by part number in accordance
with BOM.
5)
The receiver must be operated for about 20 minutes prior to the
adjustment
.
VTest and Inspection Method
1) Performance : LGE TV test method followed.
2) Demanded other specification
Safety: CB specification
EMC : CISPR 13 specification
Remark
Safety : IEC60065, EN60065
EMC : CISPR13 Class B
Model Name
DT-42PY10X
DT-50PY10
DT-60PY10
Market
Australia
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- 9 -
1. Application Object
These instructions are applied to all of the PDP TV, AF-046A.
2. Notes
(1) Because this is not a hot chassis, it is not necessary to use
an isolation transformer. However, the use of isolation
transformer will help protect test equipment.
(2) Adjustments must be done in the correct order.
(3) The adjustments must be performed in the circumstance of
25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
(4) The input voltage of the receiver be must kept 220V, 60Hz
when adjusting.
(5) The receiver must be operational for about 15 minutes
prior to the adjustments.
OAfter receiving 100% white pattern, the receiver must be
operate prior to adjustment.(Or white condition in HEAT-
RUN mode)
OEnter into HEAT-RUN MODE
- Press the POWER ON KEY on R/C for adjustment.
OSD display and screen display 100% full WHITE
PATTERN.
[Set is activated HEAT-RUN without signal generator in
this mode.
3. EPLD Download
(1) Test Equipment: PC, Jig for download
(2) Connect the power of VSC B/D.
(3) Execute download program of PC.
(4) After executing the hot key on the Programmer, click icon
(5) End after confirming.
4. POWER PCB Assy Voltage
Adjustment (Va, Vs Voltage Adjustment)
4-1. Test Equipment :D.M.M 1EA
4-2. Connection Diagram for Measuring
Refer to Fig 1.
(1) Va Adjustment
1) After receiving 100% Full White Pattern, Heat-Run(over
10min).
2) Connect + terminal of D.M.M to Va pin of P805 and
connect – terminal to GND pin of P805.
3) Adjust RV601 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)
(2) Vs Adjustment
1) Connect + terminal of D.M.M to Vs pin of P805 and
connect – terminal to GND pin of P805.
2) Adjust RV401 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)
If you turn on a still screen more than 20 minutes (Especially
Digital pattern(13 CH), Cross Hatch Pattern), an afterimage
may occur in the black level part of the screen.
ADJUSTMENT INSTRUCTIONS
PC VSC
B/D
<Fig 1> Connection Diagram of EPLD Download
Each PCB Assy must be checked by Check JIG Set before
assembly. (Especially, be careful Power PCB Assy which can
cause Damage to the PDP Module.)
Va ADJ
RV601
P806
P805
P807
Va
GND
NC
VS
DMM
+ - P804
P801 P802
Vs ADJ
V401
P803
Va ADJ
RV601
P806
P805
P807
Va
GND
NC
VS
DMM
+ - P804
P801 P802
Vs ADJ
V401
P803
<3501V00182B>
<3501V00188A>
<Fig. 2> Connection Diagram of Power Adjustment for
Measuring (Power Board)
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5. EDID(The Extended Display
Identification Data)/DDC
(Display Data Channel) download
This is the function that enables “Plug and Play".
5-1. Required Test Equipment
1) PC, Jig for adjusting DDC (PC serial to D-sub.
Connection equipment)
2) D-Sub to DVI Connector
5-2. Composition of Device
5-3. EDID DATA
- Download only EDID for DVI.
6. AD9883A-Set Adjustment
6-1. Synopsis
AD9883A-Set adjustment to set the black level and the Gain
of optimum with an automatic movement from the analog =>
digital converter.
6-2. Test Equipment
Service R/C, 801GF(802B, 802F, 802R) or MSPG3240A
Pattern Generator
(720P 60Hz 100% Color Bar Pattern output will be possible
and the output level will accurately have to be revised with
0.7±0.1Vp-p)
6-3. Adjustment
(1) Input the color Bar Pattern of the 720P 60Hz Mode in the
Component INPUT and the select the Input Mode as
Component2.
(2) After receiving signal for at least 1 second, press the ADJ
Key on the Service R/C to enter the ‘Ez - Adjust’ and select
the ‘1. AD9883A-Set’.
Pressing the Vol + Key to adjust with automatic movement.
(3) When the adjustment is over, 'Adjustment completed
(Press OK)' is displayed. If the adjustment has errors,
'AD9883A-Failed! Try Again' is displayed.
(4) Readjust after confirming the case Pattern or adjustment
condition where the adjustment errors.
(5) After adjustment is complete, exit the adjustment mode by
pressing the ADJ KEY.
7. Adjustment of White Balance
7-1. Required Equipment
(1) Color analyzer (CA-100 or similar product)
(2) Automatic adjustor (with automatic adjustment hour
necessity and the RS-232C communication being possible)
(3) AV Pattern Generator
7-2. Connection Diagram of Equipment
for Measuring (Automatic Adjustment)
PDP
SET
00 |
10 |
20 |
30 |
40 |
50 |
60 |
70 |
80 |
90 |
A0 |
B0 |
C0 |
D0 |
E0 |
F0 |
00
00
23
0F
01
13
3E
47
00
02
C4
96
58
00
00
00
00
01
FF
0E
4B
01
00
08
20
00
01
8E
00
2C
00
00
00
00
02
FF
01
52
01
4C
00
54
00
04
21
C4
25
00
00
00
00
03
FF
03
2F
01
6C
00
56
00
00
00
8E
00
00
00
00
00
04
FF
80
CE
01
42
00
0A
00
01
00
21
C4
00
00
00
00
05
FF
6E
00
01
00
00
20
00
1D
1E
00
8E
00
00
00
00
06
FF
3E
31
C3
00
00
20
00
00
8C
00
21
00
00
00
00
07
00
78
CA
1E
18
00
20
00
72
0A
18
00
00
00
00
00
08
1E
0A
01
00
00
00
20
00
51
D0
01
00
00
00
00
00
09
6D
31
01
20
00
00
20
00
D0
8A
1D
9E
00
00
00
00
0A
01
30
01
41
00
00
20
00
1E
20
80
00
00
00
00
00
0B
01
A5
01
00
FD
00
20
00
20
E0
18
00
00
00
00
00
0C
01
58
01
20
00
00
00
00
6E
2D
71
00
00
00
00
00
0D
01
3B
01
30
37
FC
00
00
28
10
1C
00
00
00
00
00
0E
01
B8
01
10
4E
00
00
01
55
10
16
00
00
00
00
00
0F
01
26
01
60
1E
4C
01
17
00
3E
20
00
00
00
00
BF
216 FULL WHITE
CVBS Part
PDP MONITOR
COLOR
ANALYZER
TYPE; CA-100
MSPG-2100 or
MSTG-5200
<Fig. 4> Connection Diagram of Automatic Adjustment
<Fig. 3> Adjustment Pattern : 720P 60Hz Color Bar Pattern
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[[. RS-232C Command (Automatic Adjustment)
7-3. Adjustment of White Balance(manual)
O Operate the Zero-calibration of the CA-100, then attach
sensor to PDP module surface when you adjust.
O Manual adjustment is also possible by the following sequence.
(1) Enter ‘3.White-Pattern’ by pressing ADJ KEY on the
Service Remote Control.
(2) Select "Test Pattern White" using Vol +/- Key and HEAT
RUN at least 15 minutes by pressing the ENTER Key.
(3) Receive the AV 50Hz, Full size, 216 Gray window pattern
signal from AV Pattern Generator.
Input mode : DT-42PY10X : AV2
DT-50PY10 : AV1
DT-60PY10 : AV1
(4) Select the Screen Adjustment as ‘Dynamic’.
(5) After attaching sensor to center of screen, select ‘2. White-
Balance’ of ‘Ez - Adjust’ by pressing the ADJ KEY on the
Service R/C. Then enter adjustment mode by pressing the
Right KEY (
G ) .
(6) Adjust the High Light using R Gain/B Gain.
(7) Adjust using Volume +/- KEY.(G Gain: 127)
DT-42PY10X : R Offset : 50/ B Offset : 48/ B Offset: 50
DT-50PY10 : R Offset : 52/ B Offset : 45/ B Offset: 60
DT-60PY10 : R Offset : 55/ B Offset : 50/ B Offset: 55
X; 0.290±0.003
Y; 0.290±0.003
Color temperature: 9,000°K±500°K
(7) After adjustment is complete, move to Ez - Adjust screen
by pressing the ENTER(Y) KEY. Then exit the adjustment
mode by press ADJ KEY.
R Gain
G Gain
B Gain
R Cut
G Cut
B Cut
00
00
00
00
00
00
ff
ff
ff
7f
7f
7f
ja 00 XX
jb 00 XX
jc 00 XX
lj 00 XX
lk 00 XX
ll 00 XX
7f
7f(Fix.)
7f
3f(Fix.)
3f
3f
RS-232C Command
[CMD ID DATA] MIN CENTER (DEFAULT) MAX
- 11 -
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- 12 -
TROUBLE SHOOTING GUIDE
1. Power Board
1-1. The whole flowchart which it follows in voltage output state
Start check
Manufacture enterprise
meaning of a passage
1. Check the Power Off
condition.
Doesn't the
screen whole come
out?
It is identical
with Power Off
condition?
Yes
Yes
No
No
No
No
No
2. Check the Interface
signal condition.
Is the Interface
signal operated?
Yes
3. Check the St-by 5V
signal circuit.
Doesn't the
low pressure output
come out?
Doesn't the
St-by 5V signal
come out?
Yes
Yes
No
4. Check the 5V Monitor
signal circuit.
Doesn't the
5V Monitor signal
come out?
Yes
7. Check the VSC Vs-ON
signal
Doesn't the
high tension output
come out?
Doesn't the
VSC signal Vs-ON
come out?
Yes
Yes
High tension
output voltage Drop
it occurs?
When
remove the
Y B/D Module
Input Connector, output
voltage Drop
it occurs?
When remove
the Y, Z B/D Module
Input Connector, Power
Board high tension output
voltage Drop
it occurs?
Yes No No
9. Check the Power
Board Output high
tension circuit
Yes
10. Check the Z B/D
Module Coutput circuit
Yes
When
remove the
Z B/D Module
Input Connector, output
voltage Drop
it occurs?
11. Check the Y B/D
Module Coutput circuit
Yes
No
8. Check the Vs, Va
voltage output circuit.
Doesn't the
Vs, Va voltage output
come out?
Yes
No
No
5. Check the VSC RL-ON
signal.
Doesn't the
VSC signal RL-ON
come out?
Yes
6. Check the VSC low
pressure output
Doesn't the
VSC low pressure
output come out?
Yes
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- 13 -
1-2. DT-42PY10X Sony Power Board Structure
1 2 3
T502: Vs Trans
T702: Va Trans
T101: St-by Trans
T103: Low Voltage Trans
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- 14 -
1-3. DT-50PY10 Sony Power Board Structure
1 2 3
T502 : Vs Trans
T702 : Va Trans
T101 : St-by Trans
T103 : Low Voltage Trans
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- 15 -
1-3. DT-50PY10 Sanken Power Board Structure
1 2 3
T221 : Vs Trans
T271 : Va Trans
T121 : St-by Trans
T201 : Low Voltage Trans
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- 16 -
1-4. DT-60PY10 Power Board Structure
1 2 3
AC-IN
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- 17 -
1 2 3
PFC
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1 2 3
DC-DC
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2. No Power
(1) Symptom
¯Does’t minute discharge at module.
¯Non does not come in into the front LED.
(2) Check follow
Is plug in power cord? Plug in power cord.
Yes
No
Is connected the Line Filter and
Power Switch Cable? Connect the Cable.
Yes
No
Is connected the Power Switch and
Power Board Cable? Connect the Cable.
Yes
No
Is normal the Fuse(F101) on Power
Board? Replace the Fuse.
Yes
No
Is connected the Power Board and
7P of VSC Board Cable? Connect the Cable.
Yes
No
Is connected the Power Switch and
Power Board Cable?
After remove the cable connection
to Power Board(except the CN101
connection cable), authorizes the
AC voltage marking on manual.
When ST-BY 5V does not operate,
replace the Power Board.
Connect the Cable.
Yes
No
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3. Protect Mode
(1) Symptom
¯After once shining, it does not discharge minutely
from module
¯The Rely falls(The sound is audible “click”)
¯It is converted with the color where the front LED
is red from green.
(2) Check follow
Is normal the Power
Board? Replace Power Board.
Is output the normality Low/High
voltage except Stand-by 5V?
Yes
No No
Is normal the each
connector? Replace connector.
Replace
Y-Board.
After connecting well each connector,
the normality it operates?
Yes
No No
Is normal the
Ctrl Board? Replace X-Board.
Is normal the output voltage after
remove P101~P106 connector of
Ctrl-B/D?
Yes
No Yes
Is normal the
Y- Board?
Is normal the output
voltage after remove
(P3, P4) connector
of Y-B/D?
Is normal the Fuse(FS2) on Y-B/D?
(in case of open is replace)
Yes
No Yes Yes
Replace
Z-Board.
Is normal the
Z- Board? Is normal the output voltage after remove P12 connector of Z-B/D?
Yes
No
Is normal the
X- Board?
Is normal the output voltage after
remove P1, 2, 3, 4, 5 connector of
X-B/D?
After remove P1, P2, P3, P4 output voltage
normality: Replace Right X-B/D
After remove P6, P7 output voltage
normality: Replace Left X-B/D
Yes
No Yes
Is normal the
VSC Board? Is normal the output voltage after remove P1000, P1200?
After crisis COF of each board, check the normality operates.
If in case the normality operates, correspondence COF Fail is
replace the module.
1) Is normal the output Voltage after remove P1 -> Replace X Left-Bottom B/D
2) Is normal the output Voltage after remove P5-> Replace X Left-TOP B/D
3) Is normal the output Voltage after remove P100-> Replace X Center-TOP B/D
4) Is normal the output Voltage after remove P2-> Replace X Center-Bottom B/D
5) Is normal the output Voltage after remove P4-> Replace X Right-TOP B/D
6) Is normal the output Voltage after remove P3 -> Replace X Right-Bottom B/D
After remove P1000 normal operation:
Replace Analog Board
After remove P1200 normal operation:
Replace Digital Board
Yes
No
Is normal the
COF of X, Y, Z?
No
Yes
Yes
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