LG MT-60PZ90V-M, MT-60PZ92M-V, MZ-60PZ92V Schematic

PLASMA MONITOR

SERVICE MANUAL

CAUTION

BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS : RF-03LA

MODEL : MT-60PZ90V/M/92M/V

MODEL : MZ-60PZ92V

website:http://biz.LGservice.com

e-mail:http://www.LGEservice.com/techsup.html

INPUT
SELECT

VOLUME

ON/OFF

- 2 -

CONTENTS

SAFETY PRECAUTIONS ...................................................................................3

DESCRIPTION OF CONTROLS ........................................................................ 4

SPECIFICATIONS .............................................................................................. 8

ADJUSTMENT INSTRUCTIONS ........................................................................9

PRINTED CIRCUIT BOARD ..............................................................................12

BLOCK DIAGRAM.............................................................................................21

EXPLODED VIEW..............................................................................................22

EXPLODED VIEW PARTS LIST........................................................................23

REPLACEMENT PARTS LIST...........................................................................24

SCHEMATIC DIAGRAM ........................................................................................

- 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

- 4 -

DESCRIPTION OF CONTROLS

<Back Panel>

<Front Panel Controls>

Connection to PC

Note: The connection cables shown above to the right are not included with the Monitor.

A D-sub 15-pin cable and a DVI cable are provided to connect the Monitor to a PC.

Connection to AV equipment

( )( )

R

( )( )

L

EXTERNAL SPEAKER

YPBP

R

(MONO)

R

AUDIO

L

R

AUDIO

L

S-VIDEO AC INPUTAUDIO INPUT

AUDIO INPUT

COMPONENT INPUT

REMOTE CONTROL

RS-232C INPUT

(CONTROL/SERVICE)

AUDIO INPUT RGB OUTPUTRGB INPUTDVI INPUT

VIDEO
INPUT

INPUT
SELECT

VOLUME

ON/OFF

ON/OFF

INPUT

SELECT

VOLUME

Main Power Button

INPUT SELECT Button

VOLUME (

F,G

) Buttons

Power Standby Indicator

Illuminates red in standby mode,
Illuminates green when the
Monitor is turned on

Remote Control Sensor

Sub power button

AUDIO

INPUT

VIDEO
INPUT

S-VIDEO
INPUT

AUDIO
INPUT

RS-232C
INPUT

DVI INPUT

RGB INPUT

RGB
OUTPUT

AUDIO
INPUT

COMPO-

NENT INPUT

- Shown is a simplified representation of the Monitor.

- Here shown may be somewhat different from your set.

- 5 -

1. RS-232C INPUT(CONTROL/SERVICE) PORT

Connect to the RS-232C port on a PC.

2. DVI INPUT / RGB INPUT / AUDIO INPUT SOCKETS

Connect the monitor output socket of the PERSONAL
COMPUTER to this socket.

RGB OUTPUT SOCKET

You can watch the RGB signal on another monitor, con­nect RGB OUTPUT to another monitor’s PC input port.

3. REMOTE CONTROL

Connect your wired remote control to the Remote port on
the Monitor.

4. EXTERNAL SPEAKER OUTPUT (8 ohm)

Connect to optional external speaker(s).
* For further information, refer to ‘Speaker & Speaker
Stand’ manual.

5. AUDIO / COMPONENT INPUT / S-VIDEO / VIDEO INPUT
/ AUDIO INPUT SOCKETS

EURO SCART SOCKET

Note : The interface board (AP-60EA30/31) is not

equipped on MT/MZ-60PZ90/92 series models. Contact
your dealer for buying this optional item.

6. POWER CORD SOCKET

This Monitor operates on an AC power. The voltage is
indicated on the Specifications page. Never attempt to
operate the Monitor on DC power.

AV1AV1

( )

( )

R

( )

( )

L

EXTERNAL SPEAKER

AC INPUT

RS-232C INPUT

(CONTROL/SERVICE)

AUDIO INPUT RGB OUTPUTRGB INPUTDVI INPUT

REMOTE CONTROL

<Back Panel>

RCA Type

Scart Type

5

( )( )

R

( )( )

L

EXTERNAL SPEAKER

Y PBP

R

(MONO)

R

AUDIO

L

R

AUDIO

L

S-VIDEO AC INPUTAUDIO INPUT

AUDIO INPUT

COMPONENT INPUT

REMOTE CONTROL

RS-232C INPUT

(CONTROL/SERVICE)

AUDIO INPUT RGB OUTPUTRGB INPUTDVI INPUT

VIDEO
INPUT

41 2 63 5

- 6 -

- When using the remote control aim it at the remote control sensor of the Monitor.

- There’s maybe defect in consecutive operation of remote control in specified brightness according to this monitor fea­ture.

1 2 3

4 5 6

7 8

0

9

POWER

SLEEP INPUT SELECT

PSM SSM

ARC PIP ARC

PIP

TWIN PICTURE

SWAP

MENU MUTE

OK

VOL

POWER STOP

PLAY FF

REC

REW

P/STILL

WIN.SIZE

WIN.POSITION

ZOOM +

ZOOM -

SPLIT ZOOM

VOL

SUB INPUT

1. POWER

switches the set on from standby or off to standby.

2. SLEEP

sets the sleep timer.

3. PSM (Picture Status Memory)

recalls your preferred picture setting.

4. ARC (Aspect Ratio Control)

changes the picture format.

5. PIP

switches the sub picture on or off.

6. SWAP

alternates between main and sub picture.

7. MENU Button

selects a menu.

8.

DD/ EE

selects a menu item.

FF/ GG

(Volume Down/Up)

adjusts the volume.
adjusts menu settings.

OK

displays the current mode.

9. NUMBER BUTTONS

10. VCR BUTTONS

control a LG video cassette recorder.

11. WIN. SIZE

adjusts the sub picture size.

12. ZOOM-/ZOOM+

13. INPUT SELECT BUTTON

selects TV, AV or PC monitor mode.

14. SSM (Sound Status Memory)

recalls your preferred sound setting.

15. PIP ARC

changes the picture format of PIP.

16. TWIN PICTURE

17. SUB INPUT

selects the input mode for the sub picture.

18. MUTE Button

switches the sound on or off.

19. SPLIT ZOOM

enlarge the screen with regular ration.

20. WIN.POSITION

moves the sub picture to

DD/ EE

or FF/ GGdirection.

1

13
14
15
16
17
18

19
20

2
3
4
5
6
7

8

9

10

11
12

• Open the battery compartment cover on the back side and
insert the batteries with correct polarity.

• Apply two 1.5V alkaline batteries of AAAtype. Don’t mix the
used batteries with new batteries.

• Install the batteries with the correct polarities.

Installing Batteries

- 7 -

D-sub 15 pin cable

AS mark

LG TV

Owner’s Manual

1.5V

1.5V

Alkaline batteries

BNC-RCA adapter (optional)

DVI cable

Power cord

1 2 3

4 5 6

7 809

POWER

SLEEP INPUT SELECT

PSM SSM

ARC PIP ARC

PIP

TWIN PICTURE

SWAP

MENU MUTE

OK

VOL

POWER STOP

PLAY FF

REC

REW

P/STILL

WIN.SIZE

WIN.POSITION

ZOOM +

ZOOM -

SPLIT ZOOM

VOL

SUB INPUT

Remote control handset

Phone scart cable (Optional)

Ceiling mounting bracket

- 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.

Accessories

Optional Extras

Tilt wall mounting bracket

Wall mounting bracket

Desktop stand

Video cables

Desktop Speaker stand

Speakers

PC audio cables

Vertical Wall mounting bracket

- 8 -

SPECIFICATIONS

NOTE : Specifications and others are subject to change without notice for improvement

.

V Scope

This specification can be applied to all model of 60”PDP MONITOR related to RF-03LA Chassis.

V Test Condition

1) Temperature : 25¡ 5°C

2) Relative Humidity: 65¡ 10%

3) Power Voltage:Standard Input Voltage
(AC 110V-240V~, 50/60Hz)
But Standard input voltage of each product is marked by model.

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 and Inspection Method

1) Performance : Follow the Standard of LG TV test

2) Demanded other specification
Safety: UL, CSA, IEC specification
EMC : Fcc, ICES, IEC specification

Remark
Safety: IEC60065,IEC60095
EMI : EN55013

-Conducted / Radiation
Safety : IEC60065,IEC60095
EMI : EN55013

-Conducted / Radiation

Model Name

MZ-60PZ92V

MT-60PZ90V

Market

EU

N-EU

Chassis

RF-03LA

Brand

LG

Model Name
MZ-60PZ92V
MT-60PZ90V

Market Place

EU

N-EU

1. Application Object

These instructions are applied to all of the PDP MONITOR,
RF-03FA chassis.

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 instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment 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 must keep 220V, 60Hz in

adjusting.
(5) The receiver must be operated for about 15 minutes prior

to the adjustment.

¤ After RGB Full white HEAT-RUN Mode, the receiver

must be operated prior to adjustment.

¤ŁEnter into HEAT-RUN mode

- Press the POWER ON Key on Remote Control for
adjustment.

- Press the VOL + Key. HEAT RUN WHITE OSD
display and screen display 100% full WHITE
PATTERN.

[ Set is activated HEAT-RUN without signal generator in

this mode.

[ Single color pattern(RED/BLUE/GREEN) of HEAT-RUN

mode uses to check PANEL.

Caution)

If you turn on a still screen more than 20 minutes, a
after image may be occur in the black level part of
the screen.

3. POWER PCB Assy Voltage
Adjustment (Va, Vs, Voltage Adjustment)

3-1. Test Equipment

: D.M.M 1EA

3-2. Connection Diagram for Measuring

: refer to fig.1

3-3. Adjustment Method

(1) PFC adjustment

¤ After receiving 100% Full White Pattern(06CH), HEAT

RUN.

¤Ł Connect +terminal of D.M.M to TP1 PFC+(J8302),

connect -terminal to TP2 PFC-(J8301)

¤Ø After turning VR 801, voltage of D.M.M adjust 380V

(deviation; ±1V)

(2) Va Adjustment

¤ After receiving 100% Full White Pattern, HEAT RUN.
¤ŁConnect + terminal of D.M.M to Va pin of P805 and

connect – terminal to GND pin of P805.

¤ØAfter turning the VR8401, voltage of D.M.M adjustment

as same as Va voltage which on label of panel
Right/Top. (Deviation : ±0.5V)

(3) Vs Adjustment

¤ Connect + terminal of D.M.M to Vs pin of P805 and

connect – terminal to GND pin of P805.

¤Ł After turning the VR8501, voltage of D.M.M adjustment

as same as Vs voltage which on label of panel
Right/Top. (Deviation : ±0.5V)

4. RGB Auto Cut-Off & MIN Bias
MAX Bias adjustment

(1) Input Full White (255 Gray) signal which generated from

Pattern Generator into RGB.

(2) Press POWER ON KEY on R/C for adjustment and select

Auto Cut-Off.

(3) Press Vol. + key and operate TO SET
(4) Original Window screen will be presented about 3-5

seconds later. And if there is a mark of OK OSD, then
Auto Cut-off will be completed.

(5) After adjustment, Press (

A)ENTER Key to save

adjustment mode.

O Data value, which adjusted in the board, is valid until the VSC

Board is dissuaded and must be protected.

- 9 -

ADJUSTMENT INSTRUCTIONS

Each PCB Assy must be checked by the Check JIG Set before
whole assembly. (Be careful the POWER PCB Assy not to
damage to PDP Module)

<Fig.1> Connection Diagram of Power Adjusment for Measuring

VR8501VR8501
VS VS ADJADJ

VR8401VR8401
VVAA ADJADJ

<Fig.2> Connection Diagram of Vs, Va Power adjusment for measuring

O For the protection of data, Micom does not permit any more

adjustment is completed well.

O In case of re-adjustment, operate First Value Setting.

1) Press both Volume +key of local key instart key of R/C for
adjustment.

2) Few second later, Temperture OSD display, then Press
onstop key of R/C for adjustment.

5. Adjustment of White Balance

5-1. Required Equipment

Color analyzer (CA-100 or same product)

5-2. Connection Diagram of Equipment for

Measuring (Auto Adjustment)

5-3. Adjustment of White Balance(Manual

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 R/C for adjustment then operate
HEAT RUN more than 15 minute.

(2) Supply 216Gray Level, 50% size length and breadth signal

to RGB input.

(3) To adjust High Light, stick sensor to 216Gray Level(or

105~115 Cd/m2) Pattern, press ADJ Key on R/C for
adjustment and press

D, E on R/C in adjustment mode to

select R-H or G-H, press VOL +, - Key and adjust it until
color coordination becomes as below.

X: 0.280±0.003, Y: 0.290±0.003
Color temperature: 10,000°K±500°K

(4) Exit adjustment mode using V Key.

5-4. Auto adjustment (RS-232C)

6. DDC Data Input

6-1. Required Test Equipment

(1) A jig for adjusting PC, DDC. (PC serial to D-sub.

Connection equipment)
(2) S/W for writing DDC(EDID data write & read)
(3) D-Sub 15P cable, D-Sub to DVI Connector (Connect to

DVI Jack)

6-2. Setting of Device

6-3. Preparation for Adjustment

(1) Set devices as above and turn the PC, jig on.
(2) Put S/W for writing DDC (EDID data write & read) into

operation. (operated in DOS mode.)

6-4. Sequence of Adjustment

(1) DDC Data Input for Analog-RGB

¤ Put the set on the table and turn the power on.

¤ŁConnect PC Serial to D-sub 15P Cable of JIG for DDC

adjustment to RGB terminal (D-Sub 15Pin).

¤Ø Operate S/W for DDC record and select DDC Data for

Analog RGB in Model Menu.

¤Œ Operate EDID Write command.

¤º Operate EDID Read command and check whether

Check Sum is OK.

¤ If Check Sum is NG, repeat ¤Ø~ ¤Œ.

¤ If Check Sum is OK, DDC Data for Analog-RGB input is

completed.

(2) DDC Data input for Digital-RGB(DVI)

¤ Connect PC Serial to DVI Cable of JIG for DDC

adjustment to DVI terminal (DVI Jack).

- 10 -

R - H216R - H216
G - H216 G - H216
B - H216 B - H216

Window

MSPG-2100 or
MSTG-5200

RGB Signal Input

High Light adjustment

216 Gray Level
105 ~ 115 Cd/m

2

RS-232C communication

<Fig.3> Connection Diagram of Manual Adjustment

Type

Baud Rate

1150200

Index

R-H

G-H

Data bit

8

Cmd1 Cmd2

j a
j b

Stop bit1Parity

NONE

RF-03LA

Protocol

Setting

Data Min Value

180(B4)
170(A4)

Max Value

254(FE)
250(FA)

RS232

¤ŁOperate S/W for DDC record and select DDC Data for

Digital RGB in Model Menu.

¤ØOperate EDID Write command.
¤Œ Operate EDID Read command and check whether

Check Sum is OK.

¤ºIf Check Sum is NG, repeat ¤Ø~ ¤Œ.
¤ If Check Sum is OK, DDC Data for Digital-RGB input is

completed.

7. Adjustment of Component Off-Set

7-1. Required Test Equipment

: HD-STB(SK-011T) or same product

7-2. Manual Adjustment of Component Off-

Set

(1) Input Video signal and Component 720P signal of HD-

STB.
(2) Press ADJ key of R/C twice for entering twin picture mode.
(3) Adjust the same color senses between main and sub,

using Volume +; -key of R/C in R, G, B Off-Set menu.

- 11 -

- 12 -

MAIN (TOP)

PRINTED CIRCUIT BOARD