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PLASMA TV
SERVICE MANUAL
CHASSIS : MF-056C
MODEL : 42PX3RVA
42PX3RVA-ZC
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
TV/AV MENU OK VOL PR
CONTENTS
SAFETY PRECAUTIONS ...................................................................................3
DESCRIPTION OF CONTROLS .........................................................................4
SPECIFICATIONS ...............................................................................................9
ADJUSTMENT INSTRUCTIONS ......................................................................11
TROUBLE SHOOTING GUIDE ..........................................................................15
BLOCK DIAGRAM .............................................................................................24
EXPLODED VIEW ..............................................................................................26
EXPLODED VIEW PARTS LIST ........................................................................27
REPLACEMENT PARTS LIST...........................................................................28
SCHEMATIC DIAGRAM ........................................................................................
PRINTED CIRCUIT BOARD ..................................................................................
SAFETY PRECAUTIONS
IMPORTANT SAFETY NOTICE
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 Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet.
An isolation Transformer should always be used during Do not use a line Isolation Transformer during this check.
the servicing of a receiver whose chassis is not isolated from Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor
the AC power line. Use a transformer of adequate power rating between a known good earth ground (Water Pipe, Conduit, etc.)
as this protects the technician from accidents resulting in and the exposed metallic parts.
personal injury from electrical shocks. Measure the AC voltage across the resistor using AC
voltmeter with 1000 ohms/volt or more sensitivity.
It will also protect the receiver and it's components from being Reverse plug the AC cord into the AC outlet and repeat AC
damaged by accidental shorts of the circuitry that may be voltage measurements for each exposed metallic part. Any
inadvertently introduced during the service operation. voltage measured must not exceed 0.75 volt RMS which is
corresponds to 0.5mA.
If any fuse (or Fusible Resistor) in this monitor is blown, replace In case any measurement is out of the limits specified, there is
it with the specified. possibility of shock hazard and the set must be checked and
repaired before it is returned to the customer.
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. Leakage Current Hot Check circuit
Due to high vacuum and large surface area of picture tube,
AC Volt-meter
extreme care should be used in handling the Picture Tube.
Do not lift the Picture tube by it's Neck.
Good Earth Ground
such as WATER PIPE,
Leakage Current Cold Check(Antenna Cold Check) To Instrument's CONDUIT etc.
With the instrument AC plug removed from AC source, 0.15uF
exposed
connect an electrical jumper across the two AC plug prongs. METALLIC PARTS
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 1.5 Kohm/10W
antenna terminals, phone jacks, etc.
If the exposed metallic part has a return path to the chassis, the
measured resistance should be between 1M and 5.2M.
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.
DESCRIPTION OF CONTROLS
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.
MUTE POWER
Switches the sound on or off. switches the set on from standby or
off to standby.
MULTIMEDIA MUTE POWER
Selects the Component, RGB or I/II
HDMI modes. Selects the language during dual lan-
switches the set on from standby. guage broadcast.
TV/AV MULTIMEDIA I/II
Selects the sound output.
TV/AV
Selects the TV, AV, Component, RGB ARC
LIST ARC MENU Changes the picture format.
or HDMI modes.
switches the set on from standby.
MENU
LIST Displays on screen menus one by
Displays the programme table. one.
Exits the current menu.
PR Memorizes menu changes.
D / E (Programme Up/Down) OK
selects a programme or a menu item. VOL VOL
switches the set on from standby.
PR
F / G (Volume Up/Down)
adjusts the volume.
adjusts menu settings. NUMBER buttons
OK
accepts your selection or displays the 1 2 3
current mode.
SSM
4 5 6 To select the sound appropriate to
your viewing programme character.
PSM 7 8 9
Adjusts the factory preset picture
according to the room.
PSM 0 SSM SLEEP
Q.VIEW Sets the sleep timer.
Returns to the previously viewed pro- Q.VIEW TEXT SLEEP
gramme.
Note : This function works only when TEXT
Favourite programme is set to Off. REVEAL MODE These buttons are used for teletext.
Otherwise each press of this button ? M For further details, see the `Teletext'
will select a stored favorite pro- section.
SIZE MIX
gramme.
UPDATE TIME COLOURED BUTTONS
These buttons are used for teletext (only
TELETEXT models) or programme edit.
HOLD INDEX
i
Location and Function of Controls
TV/AV MENU OK VOL PR
TV/AV MENU OK VOL PR
1 2 3 4 5 6 7
1. Remote Control Sensor 6. OK
Accepts your selection or displays the current mode.
2. Power Indicator
Illuminates red in standby mode, Illuminates green when the 7. D / E (Programme Up/Down)
set is turned on. Selects a programme or a menu item.
Switches the set on from standby.
3. Power Button F / G (Volume Up/Down)
Switches the set on from standby or off to standby. Adjusts the volume.
4. TV/AV Button Adjusts menu settings.
Selects the TV, AV, Component, RGB or HDMI modes.
Switches the set on from standby.
5. MENU
Displays on screen menus one by one.
Exits the current menu.
Memorizes menu changes.
Location and Function of Controls
- Shown is a simplified representation of the set.
- Here shown may be somewhat different from your set.
AV5
V5
S-VIDEO
VIDEO
9
R AUDIO L/MONO
COMPONENT AUDIO
L R
AC INPUT
L (MONO) R
S-VIDEO VIDEO AUDIO AV1
Antenna
HDMI AUDIO INPUT RGB INPUT AV4
V4 AUDIO
L R
AV2
VARIABLE
VARIABLE
AUDIO OUT
REMOTE RS-232C INPUT
CONTROL (CONTROL/SERVICE)
AV3
1 2 3 4 5 6 7 8
1. HDMI(DVI VIDEO) / AUDIO INPUT / RGB INPUT 5. VARIABLE AUDIO OUTPUT
Connect the monitor output socket of the PERSONAL COM-
PUTER, DVD or STB to this socket. 6. EURO SCART SOCKET
Note: If you want to use RGB/DVI audio, we strongly recom- Connect the euro scart socket of the VCR to these sockets.
mend that you use the cable that has a core, or the EMI Filter Note: If you want to use the EURO scart cable, you have to
core along with separate cable. use the signal shielded Euro scart cable.
2. CONTROL LOCK / REMOTE CONTROL 7. ANTENNA INPUT
3. RS-232C INPUT(CONTROL/SERVICE) PORT 8. POWER CORD SOCKET
Connect to the RS-232C port on a PC. This set operates on an AC power. The voltage is indicated on
the Specifications page. Never attempt to operate the set on
4. COMPONENT INPUT DC power.
Connect DVD video outputs to Y, PB, PR of COMPONENT
INPUT and audio outputs to Audio sockets of AUDIO INPUT. 9. AUDIO/VIDEO INPUT (AV5)
S-VIDEO/AUDIO IN SOCKETS
AUDIO/VIDEO IN SOCKETS (AV4)
Connect the audio/video out sockets of external equipment to
these sockets.
S-VIDEO/AUDIO IN SOCKETS
Connect the S-VIDEO out socket of an VCR to the S-VIDEO
socket.
Connect the audio out sockets of the VCR to the audio sock-
ets as in AV4.
Displayable Monitor Specification
RGB / HDMI mode RGB / HDMI mode
Horizontal Vertical Horizontal Vertical
Resolution Frequency(KHz) Frequency(Hz) Resolution Frequency(KHz) Frequency(Hz)
31.468 70.09 31.468 70.09
640x350 640x350
37.861 85.08 37.861 85.08
31.469 70.08 31.469 70.08
720x400 720x400
37.927 85.03 37.927 85.03
31.469 59.94 31.469 59.94
35.000 66.66 35.000 66.66
640x480 37.861 72.80 640x480 37.861 72.80
37.500 75.00 37.500 75.00
43.269 85.00 43.269 85.00
31.500 60.00 31.500 60.00
848x480 37.799 70.00 848x480 37.799 70.00
39.375 75.00 39.375 75.00
31.500 60.00 31.500 60.00
852x480 37.799 70.00 852x480 37.799 70.00
39.375 75.00 39.375 75.00
35.156 56.25 35.156 56.25 (RGB)
37.879 60.31 37.879 60.31
800x600 48.077 72.18 800x600 48.077 72.18
46.875 75.00 46.875 75.00
53.674 85.06 53.674 85.06
832x624 49.725 74.55 832x624 49.725 74.55
48.363 60.00 48.363 60.00
56.476 70.06 56.476 70.06
1024x768 1024x768
60.023 75.02 60.023 75.02
68.677 85.00 68.677 85.00
54.348 60.05 47.700 60.00
1152x864 63.995 70.01 1360x768 59.625 75.02
67.500 75.00 68.500 85.00
1152x870 68.681 75.06 47.700 60.00
1280x960 60.023 60.02 1366x768 59.625 75.02
1280x1024 63.981 60.02 69.500 85.00
54.348 60.05
42PX3RV series
63.995 70.01
1152x864
67.500 75.00
77.487 85.00
1152x870 68.681 75.06
47.693 60.00
1280x768 60.091 75.00
68.504 85.00
1280x960 60.023 60.02
1280x1024 63.981 60.02
50PX3R series
Accessories
MUTE POWER
TV/AV MULTIMEDIA I/II
LIST ARC MENU
PR
OK
VOL VOL
PR
1 2 3
4 5 6
7 8 9
PSM 0 SSM
Q.VIEW TEXT SLEEP
REVEAL MODE
? M
SIZE MIX
LG TV UPDATE TIME
HOLD INDEX
i
AS mark
Owner's Manual Remote Control handset 2-Eye Bolts
1.5V
1.5V
Alkaline batteries Power Cord 2-Wall brackets
Joinning the set assembly to the wall to protect the set tumbling
- Secure the set assembly by joinning it to a wall by using the Eye Bolts/Wall brackets.
· After the set must be mounted on a desktop, install the Eye Bolts on the set as
shown.
Insert the 2 Eye Bolts and tighten securely, in the holes on the bracket.
Install the wall brackets on the wall with 2 bolts, (not supplied with the product),
as shown.
Match the height of the Eye Bolts and the wall brackets.
Check to be sure the brackets are tightened securely.
· Secure the set assembly to the wall with strong strings or wound wire cables,
(not supplied with the product), as shown.
Optional Extras
- 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.
42
40
40
42
50
Tilt wall mounting bracket Ceiling mounting bracket Video cables Audio cables
SPECIFICATIONS
NOTE : Specifications and others are subject to change without notice for improvement.
V Application Range
This spec is applied to the 42"PDP TV used MF-056C Chassis.
V Specification
Each part is tested as below without special appointment.
1) Temperature : 25±5°C (77±9°F), CST : 40±5
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.
V Test Method
1) Performance : LGE TV test method followed.
2) Demanded other specification
Safety: CE, IEC specification
EMC : CE, IEC
Model Name Market Remark
42PX3RVA-ZC EU Safety : IEC/EN60065, EMI : EN55013, EMS : EN55020
V General Specification
1. General Specification
No Item Specification Remark
1 Display Screen Device 42 inch wide Color Display Module PDP
2 Aspect Ratio 16:9
3 PDP Module PDP42V7xxxx
RGB Closed Type, Film Filter
4 Operating Environment 1) Temp : 0~40 deg LGE SPEC
2) Humidity : 0~85%
5 Storage Environment 1) Temp : -20~60 deg
2) Humidity : 0~85%
6 Input Voltage 100-240V~, 50/60Hz Maker : SONY/ Sanken
2. Model Specification( 42PX3RVA-ZA)
No Item Specification Remark
1 Market EU
2 Broadcasting system PAL B/G/I/D/K, SECAM L/L'
3 Available channel BRAND PAL SECAM
VHF/UHF C1~C69
CATV S1~S47
4 Receiving system Upper Heterodyne
5 Scart Jack(3EA) PAL, SECAM
6 Video input(2EA) PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC,PAL60
7 S-Video Input(2EA) PAL, SECAM, NTSC 4 System : PAL, SECAM, NTSC,PAL60
8 Component Input(2EA) Y/Cb/Cr, Y/Pb/Pr
9 RGB Input(1EA) RGB-PC
RGB-DTV
10 HDMI Input(1EA) HDMI-PC
HDMI-DTV
11 Audio Input(4EA) PC Audio(1EA), Component, AV(2EA) L/R Input
12 Audio Output(1EA) Variable Audio Out L/R Output
13 Wired Control Discrete IR
ADJUSTMENT INSTRUCTIONS
1. Application Object 3-2. Channel memory Method
These instructions apply to the MF-056C Chassis. 1) Select "PDP" and "Hurricane" on Model dialog. And check
your connection in Communication dialog. (If your
connection is `NG', then set your PORT(COM1,2,3,...)
correctly.)
2. Specification 2) Connect RS-232C cable and turn on the power.
(1) Because this is not a hot chassis, it is not necessary to use (If your connection has completed, you can see "Ready".)
an isolation transformer. However, the use of isolation
transformer will help protect test instrument. [ If your set is not an end products but only a board, you
(2) Adjustment must be done in the correct order. have to make your board to Stand-by state (LED_R). And
(3) The adjustment must be performed in the circumstance of you have to Download in Stand_by power state.
25±5°C of temperature and 65±10% of relative humidity if
there is no specific designation.
(4) The input voltage of the receiver must keep 100-220V,
50/60Hz.
(5) The receiver must be operated for about 15 minutes prior
to the adjustment.
O After RGB Full white HEAT-RUN Mode, the receiver must
be operated prior to adjustment.
O Enter into HEAT-RUN MODE
1) Press the POWER ON KEY on R/C for adjustment.
2) OSD display and screen display 100% full WHITE
PATTERN.
(Fig. 2)
[ Set is activated HEAT-RUN without signal generator in
this mode.
[ Single color pattern(RED/BLUE/GREEN) of HEAT-RUN 3) Select proper CH_memory file(*.nvm) for each model at
mode uses to check PANEL. [NVRAM Download] $ [Write Batch]
Next, select proper binary file(*.bin) including the CH
Caution) If you turn on a still screen more than 20 minutes information for each model at [NVRAM File].
(Especially digital pattern, cross hatch pattern), after 4) Click the [Download] button.
image may be occur in the black level part of the It means the completion of the CH memory download if all
screen. items show `OK' and Status is changed by `PASS' at the
lower right corner of the window.
5) If you want to check whether the CH information is
memorized correctly or not, click the [Verify] button.
3. Channel memory And then compare NVRAM File(*.bin) with the CH
information downloaded.
3-1. Setting up the LGIDS
1) Install the LGIDS. (idsinst.exe)
2) After installation, restart your PC.
3) Extract [files.zip] to folder [c:\LGIDS\files].
4) Start LGIDS.
(Fig. 3)
(Fig. 1)
Each PCB assembly must be checked by check JIG set. 5-2. Setting of device
(Because power PCB Assembly damages to PDP Module,
especially be careful)
4. POWER PCB Assy Voltage
Adjustments (Va, Vs Voltage Adjustments)
4-1. Test Equipment : D.M.M. 1EA (Fig. 5) Connection Diagram of DDC download
4-2. Adjustment Method
5.3. Preparation for Adjustment
[P/No 3501V00220A(Sanken) B/D, 1) As above Fig. 5, Connect the Set, EDID Download Jig, PC
P/No 6709V00010A(LGIT) B/D] & Cable.
2) Turn on the PC & EDID Download Jig. And Execute the
(1) Va Adjustment S/W : EDID TESTER Ver,2.5
1) After receiving 100% Full White Pattern, HEAT RUN. 3) Set up S/W option
2) Connect + terminal of D.M.M to Va pin of P807, connect Repeat Number : 5
- terminal to GND pin of P807. Device Address : A0
3) After turning RV501, voltage of D.M.M adjustment as PageByte : 8
same as Va voltage which on label of panel right/top. 4) Power on the Set
(Deviation; ±0.5V)
5.4. Sequence of Adjustment
(2) Vs Adjustment
1) Connect + terminal of D.M.M to Vs pin of P807, connect (1) DDC data of Analog-RGB
terminal to GND pin of P807. 1) Init the data
2) After turning RV401, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top.
(Deviation; ±0.5V)
2) Load the EDID data.(Open File)
[Analog-RGB : TYPE_VGA.ANA]
[Digital(HDMI) : TYPE_VGA.DVI]
3) Set the S/W as below.
(Fig. 4) Connection diagram of power adjustment for measuring
5. EDID (The Extended Display
Identification Data)/ DDC (Display
Data Channel) download
5-1. Required Test Equipment
1) Adjusting PC with S/W for writing EDID Data.(S/W : EDID
4) Push the "Write Data & Verify"button. And confirm "Yes".
TESTER Ver.2.5)
5) If the writing is finished, you will see the "OK" message.
2) A Jig for EDID Download
3) Cable : Serial(9Pin or USB) to D-sub 15Pin cable, D-sub
15Pin cable, DVI to HDMI cable.
6. Auto AV(CVBS) Color Balance W Auto adjustment Map(RS-232C)
MF-056C : RZ-42PX30
6-1. Requirement
- This AV color balance adjustment should be per formed Type RS232
before White Balance Adjustment. Baud Rate Data bit Stop bit Parity
115200 8 1 NONE
6-2. Required Equipme Index Cmd1 Cmd2 Data Min Value Max Value
1) Remote controller for agdjustment
2) AV Pattern Generator : 802F Pattern Generator, Master R Gain j a 00(00) 255(FF)
(MSPG-925FA), etc (Which has PAL Composite Video G Gain j b 00(00) 255(FF)
format output with standard (1.0 Vpp) Vertical 100% Color
Protocol B Gain j c 00(00) 255(FF)
Bar Pattern as Fig.6)
Setting
R Offset j d 00(00) 255(FF)
6-3 Method of Auto RGB Color Balance G Offset j e 00(00) 255(FF)
1) Input the PAL Composite Video (Fig.6.100% Color Bar
B Offset j f 00(00) 255(FF)
Pattern) into video input. (RZ-42PX30 : AV4/AV5 Input 50Hz)
2) Set the PSM to Standard mode in Picture menu.
3) Press INSTART key on R/C for adjustment.
4) Press the G (Vol. +) key operat to set, then it becomes 7-3. Adjustment of White Balance
automatically.
5) Auto-RGB OK means completed adjustment. O Operate the zero-calibration of the CA-100, then stick
sensor to PDP module surface when you adjust.
O For manual adjustment, it is also possible by the following
sequence.
1) Select white pattern of heat-run mode by pressing power
on key on remote control for adjustment then operate heat
run more than 15 minutes.
2) As below Fig.7, Supply Window or Gray step pattern to
Video input (RZ-42PX30 : AV4/AV5 INPUT 50Hz)
3) Press the TV/AV KEY on R/C for converting input mode.
4) Set the PSM to Standard mode in Picture menu.
5) Enter the White Balance adjustment mode by pressing the
(Fig. 6) Auto AV(CVBS) Color Balance Test Pattern
INSTART key twice(White Balance) on R/C
6) Stick sensor to center of the screen and select each items
(Red/Green/Blue Gain and offset) using D/E(CH +/-) key
7. Adjustment of White Balance on R/C.
7) Adjust High Light with R Gain/ B Gain and Low light with G
7-1. Required Equipment Offset/ B Offset using F/G(VOL +/-) key on R/C.
1) Remote controller for adjustment 8) Adjust it until color coordination becomes as below.
2) Color Analyzer (CA-100 or same product) (G Gain:7A/ R Offset:7F/ G Offset:7E/ B offset:80 is Fixed)
3) Auto W/B adjustment instrument(only for auto adjustment) [MF-056C : RZ-42PX30] - VGA 42"
4) AV Pattern Generator Bright : High Light : 60 ± 20 Cd/m2
Color-Coordinate : High Light : X : 0.285 ± 0.003
Y : 0.290 ± 0.003
7-2. Connecting diagram of equipment for Color Temperature : 9,300°K ± 500°K
measuring (For Auto Adjustment)
9) When adjustment is completed, Exit adjustment mode
COLOR using EXIT key on R/C
ANALYZER
216 Level (85 IRE)
TYPE ; CA-100
CVBS
signal
input
M SPG-2 1 0 0 /
M STG- 5 2 0 0
RS-232C Serial Communication
(Fig. 7) Connection Diagram of Auto W/B Adjustment (Fig. 8) Position and Pattern for Manual Adjustment of White Balance
8. Auto Component Color Balance 10. Default Value in Adjustment mode
8-1. Required Test Equipment 10-1. Auto Color Balance(Component/RGB)
1) Remote controller for adjustment
2) 802F Pattern Generator Auto Color Balance(Hex)
(Which has 720p Ypbpr output & PC 1024x768 60Hz with
Standard(0.7Vpp) Vertical 100% Color Bar Pattern as Fig.8) Auto-RGB G To Set
Red Offset1 22
Green Offset1 24
8-2. Method of Auto Component Color Balance Blue Offset1 23
1) Input the Component 720p 100% Color Bar signal into
Red Offset2 45
Component1 or Component2. Green Offset2 43
2) Set the PSM to Standard mode in Picture menu. Blue Offset2 37
3) Press INSTART key on R/C for adjustment. Red Gain 14
4) Press the G(Vol. +) key operate To set, then it becomes Green Gain 31
automatically. Blue Gain 11
5) Auto-RGB OK means complete adjustment
Reset G To Set
(Fig. 11) Default Value on OSD
10-2. White Balance
White Balance(Hex)
(Fig. 9) Auto Component Color Balance Test Pattern Red Gain 82
Red Offset 7A
Green Gain 86
9. Auto RGB Color Balance Green Offset 7F
Blue Gain 7E
9-1. Required Test Equipment Blue Offset 80
Reset G To Set
1) Remote controller for adjustment
2) 802F Pattern Generator, Master (MSPG-925FA), etc.
(Which has XGA 60Hz PC Format output with standard (Fig. 12) Default Value on OSD
(0.7Vpp) horizontal black and white pattern as Fig.10)
9-2. Method of Auto RGB Color Balance
1) Input the PC 1024x768 60Hz horizontal black and white
pattern into RGB.
2) Set the PSM to Standard mode in Picture menu.
3) Press ADJ key on R/C for adjustment.
4) Press the G(Vol. +) key operate To set, then it becomes
automatically.
5) Auto-RGB OK means completed adjustment.
Level : 0
Level : 255
(Fig. 10) Auto RGB Color Balance Test Pattern
TROUBLE SHOOTING GUIDE
1. Power Board
1-1. The whole flowchart which it follows in voltage output state
Start check
Doesn't the Yes It is identical No Is the Interface
screen whole come with Power Off signal operated?
out? condition?
Yes Yes
No 1. Check the Power Off 2. Check the Interface
condition. signal condition.
Doesn't the Yes Doesn't the No Doesn't the No Doesn't the
low pressure output St-by 5V signal 5V Monitor signal VSC signal RL-ON
come out? come out? come out? come out?
Yes Yes Yes
No 3. Check the St-by 5V 4. Check the 5V Monitor 5. Check the VSC RL-ON
signal circuit. signal circuit. signal.
No
Doesn't the Yes Doesn't the No Doesn't the Doesn't the
high tension output VSC signal Vs-ON Vs, Va voltage output VSC low pressure
come out? come out? come out? output come out?
Yes Yes Yes
No 7. Check the VSC Vs-ON 8. Check the Vs, Va 6. Check the VSC low
signal voltage output circuit. pressure output
When remove When When
the Y, Z B/D Module remove the remove the
High tension Yes No No
Input Connector, Power Y B/D Module Z B/D Module
output voltage Drop
Board high tension output Input Connector, output Input Connector, output
it occurs?
voltage Drop voltage Drop voltage Drop
it occurs? it occurs? it occurs?
No
Yes Yes Yes
9. Check the Power 10. Check the Z B/D 11. Check the Y B/D
Manufacture enterprise Board Output high Module output circuit Module output circuit
meaning of a passage tension circuit
1-2. Sony Power Board Structure
T502: Vs Trans
T702: Va Trans
T101: St-by Trans
1 2 3
T103: Low Voltage Trans
1-3. Sanken Power Board Structure
T221: Vs Trans
T271: Va Trans
T121: St-by Trans
1 2 3
T201: Low Voltage Trans
2. No Power
(1) Symptom
Ø Does't minute discharge at module.
Ø Non does not come in into the front LED.
(2) Check follow
No
Is plug in power cord? Plug in power cord.
Yes
Is connect the Line Filter and Power No
Connect Cable.
Board Cable?
Yes
Is normal the Fuse(F101) on Power No
Replace Fuse.
Board?
Yes
Is connect the Power Board and 7P No
Connect Cable.
of VSC Board Cable?
Yes
After remove the cable connect to
Power Board(except the CN101
connection cable), authorizes the
AC voltage marking on manual.
When ST-BY 5V does not operate,
replace Power Board.
3. Protect Mode
(1) Symptom
Ø After once shining, it does not discharge minutely
from module
Ø The Rely falls(The sound is audible "click")
Ø It is converted with the color where the front LED
is red from green.
(2) Check follow
No No
Is normal the Power Is output the normality Low/High Replace Power
Board? voltage except Stand-by 5V? Board.
Yes
No No
Is normal the each After connecting well each connector, Replace
connector? the normality it operates? connector.
Yes
Is normal the output
No Yes Yes Replace
Is normal the Is normal the Fuse(FS2) on Y-B/D? voltage after remove
Y- Board? (In case of open is replace) P5, P6 connector of Y-Board.
Y-B/D?
Yes
Is normal the output
No Yes Yes Replace
Is normal the Is normal the Fuse(FS1, FS2) on Z- voltage after remove
Z- Board? B/D? (In case of open is replace) P1 connector of Z-Board.
Z-B/D?
Yes
After remove P1, P2, P3 output voltage
No Is normal the output voltage after Yes
Is normal the normality: Replace Right X-B/D
remove P1, 2, 3, 4, 5 connector of
X- Board? After remove P4, P5 output voltage
X-B/D?
normality: Replace Left X-B/D
Yes
No Is normal the output voltage after Yes
Is normal the Replace
remove P1, 2, 4, 9, 10 connector of
Ctrl Board? X-Board.
Ctrl-B/D?
Yes
No Yes
Is normal the Is normal the output voltage after After remove P1001, 1100 normal
VSC Board? remove P1001, P1100? operation: Replace VSC Board
Yes
No After crisis COF of each board, check the normality operates.
Is normal the
COF of X, Y, Z? If in case normality operates, correspondence COF Fail is
replace the module.
4. No Raster
(1) Symptom
Ø Does't minute discharge at module.
Ø It maintains the condition where the front LED is green.
(2) Check follow
No No
Is normal the Power Is output the normality Low/High Replace Power
Board? voltage except Stand-by 5V? Board.
Yes
No No
Is normal the each After connecting well each connector, Replace
connector? the normality it operates? connector.
Yes
Is normal the output
No Yes Yes Replace
Is normal the Is normal the Fuse(FS2) on Y-B/D? voltage after remove
Y- Board? (In case of open is replace) P5, P6 connector of Y-Board.
Y-B/D?
Yes
Is normal the output
No Yes Yes Replace
Is normal the Is normal the Fuse(FS1, FS2) on Z- voltage after remove
Z- Board? B/D? (In case of open is replace) P1 connector of Z-Board.
Z-B/D?
Yes
After remove P1, P2, P3 output voltage
No Is normal the output voltage after Yes
Is normal the normality: Replace Right X-B/D
remove P1, 2, 3, 4, 5 connector of
X- Board? After remove P4, P5 output voltage
X-B/D?
normality: Replace Left X-B/D
Yes
No Is normal the output voltage after Yes
Is normal the Replace
remove P1, 2, 4, 9, 10 connector of
Ctrl Board? X-Board.
Ctrl-B/D?
Yes
No Yes
Is normal the Is normal the output voltage after After remove P1001, P1100 normal
VSC Board? remove P1001, P1100? operation: Replace VSC Board
Yes
No After crisis COF of each board, check the normality operates.
Is normal the
COF of X, Y, Z? If in case normality operates, correspondence COF Fail is
replace the module.
5. In case of occur strange screen into specific mode
5-1. In case of does't display the OSD
(1) Symptom
Ø LED is green
Ø The minute discharge continuously becomes
accomplished from module
(2) Check follow
Is normal the LVDS No Is the LVDS cable Yes
Replace cable.
cable? connected well?
No
Cable inserts well.
Yes
Is normal the VSC No Operates the Yes
Replace VSC B/D
Board? FIL8532 IC(IC800)?
No
Replace FIL8532
Yes IC(IC800).
Is normal the Ctrl No
Replace Ctrl B/D.
Board of Module?
5-2. In case of does't display the screen into specific mode
(1) Symptom
Ø The screen does not become the display from specific input mode
(RF, AV, Component, RGB, DVI).
(2) Check follow
Ø Check the all input mode should become normality display.
Ø Check the Video(Main)/Data(Sub), Video(Main)/Video(Sub) should become
normality display from the PIP mode or DW mode. (Re-Check it Swap)
(3) In case of becomes unusual display from RF mode
No Is the Tuner Cable Yes Is normal the Input voltage, IIC
Is normal the Tuner?
connected well? Communication and CVBS output?
No No
Yes
Cable inserts well. Replace Tuner
No Is normal the Input voltage, IIC No
Is normal the
Replace IC
CXA2069Q? Communication and HV sync?
Yes
Is normal the No Is normal the Input voltage, IIC No
Replace IC
FIL8532? Communication and HV sync?
(4) In the case of becomes unusual display from RF, AV mode
No Is normal the Input voltage, IIC No
Is normal the
Replace IC
CXA2069Q? Communication and HV sync?
Yes
Is normal the No Is normal the Input voltage, IIC No
Replace IC
FIL8532? Communication and HV sync?
(5) In the case of becomes unusual display from Component, RGB mode
No Is normal the Input voltage, IIC No
Is normal the
Replace IC
FIL8532? Communication and HV sync?
(6) In the case of becomes unusual display from HDMI mode
No Is normal the Input voltage, IIC No
Is normal the
Replace IC
Sil9011? Communication and HV sync?
Yes
Is normal the No Is normal the Input voltage, IIC No
Replace IC
FIL8532? Communication and HV sync?
6. In case of no sound
(1) Symptom
Ø LED is green
Ø Screen display but sound is not output
(2) Check follow
No Yes
Is normal the SPK Is the SPK cable
Replace SPK cable
cable? connected well?
No
Yes
Cable inserts well.
No Yes Yes
Is normal the RF/ AV/ Operates the IC400? Operates the IC401? Operates the IC402?
Component/ RGB/
HDMI sound? No No No
Replace IC400 Replace IC401 Replace IC402
Replace
VSC B/D
BLOCK DIAGRAM
MEMO
EXPLODED VIEW
300
121
600 601
301
304
120
303
302
200
207
202
206
590 205
520
201
501 204
580
203
400
530
410
401
430
EXPLODED VIEW PARTS LIST
No. Part No. Descriptions
120 6401VD0032A SPEAKER ASSEMBLY, FULL RANGE(R) RZ-42PX30 FILM TYPE
121 6401VD0033A SPEAKER ASSEMBLY, FULL RANGE(L) RZ-42PX30 FILM TYPE
200 6348Q-E080W PDP, 42" 852*480 PDP42V70102.ADLGB
201 6871QCH053A PWB(PCB) ASSEMBLY,DISPLAY CTRL ASSY HAND INSERT 42V7 FPGA
202 6871QDH084A PWB(PCB) ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42V7 YDRV TOP B/D
203 6871QDH085A PWB(PCB) ASSEMBLY,DISPLAY YDRV ASSY HAND INSERT 42V7 YDRV BTM B/D
204 6871QLH047A PWB(PCB) ASSEMBLY,DISPLAY XRLT ASSY HAND INSERT 42V7 XL B/D
205 6871QRH055A PWB(PCB) ASSEMBLY,DISPLAY XRRT ASSY HAND INSERT 42V7 XR B/D
206 6871QYH036A PWB(PCB) ASSEMBLY,DISPLAY YSUS ASSY HAND INSERT 42V7
207 6871QZH041A PWB(PCB) ASSEMBLY,DISPLAY ZSUS ASSY HAND INSERT 42V7 ZSUS HAND INSERT ASSY
300 3091V00816C CABINET ASSEMBLY, RZ-42PX30 STEREO MF056C FILM TYPE SKD
301 4980V01203B SUPPORTER, ASSY AL FILTER TOP RZ-42PX30 C/SKD
302 4980V01204B SUPPORTER, ASSY AL FILTER BOTTOM RZ-42PX30 C/SKD
303 4980V01205B SUPPORTER, ASSY AL FILTER RIGHT RZ-42PX30 C/SKD
304 4980V01206B SUPPORTER, ASSY AL FILTER LEFT RZ-42PX30 C/SKD
400 3809V00605B BACK COVER ASSEMBLY, 42PX17/30 CHASSIS CHANGE C/SKD
401 3301V00085A PLATE ASSEMBLY, ASSY 3300V00552A RZ-42PX30 PLATE TUNER COVER
410 4980V010