Sharp PZ-MR2T User manual

PZ-MR2T
PZ-43MR2U
PZ-50MR2U
SERVICE MANUAL
S12F4PZ50MR2U
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
MODELS
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
CONTENTS
Page
PLASMA DISPLAY TV
(AVC SYSTEM)
»IMPORTANT SERVICE SAFETY PRECAUTION .....2
»SPECIFICATIONS................................................4
»OPERATION MANUAL ........................................5
»DIMENSIONS ....................................................13
»REMOVING OF MAJOR PARTS .......................14
»ADJUSTMENT PROCEDURES.........................16
»DESCRIPTION OF MAJOR IC FUNCTIONS ....22
»TROUBLE SHOOTING TABLE..........................49
»PRINTED WIRING BOARD BLOCK DIAGRAM ..56
»SYSTEM BLOCK DIAGRAM .............................58
Page
»SIGNAL FLOW BLOCK DIAGRAM....................60
»DC/DC CONVERTER BLOCK DIAGRAM .........62
»POWER BLOCK DIAGRAM...............................64
»PC I/F BLOCK DIAGRAM ..................................66
»OVERALL WIRING DIAGRAM...........................68
»DESCRIPTION OF SCHEMATIC DIAGRAM .....72
»WAVEFORMS ....................................................73
»SCHEMATIC DIAGRAM.....................................74
»PRINTED WIRING BOARD ASSEMBLIES......114
»PARTS LIST .....................................................121
»PACKING OF THE SET ...................................145
SHARP CORPORATION This document has been published to be used for
after sales service only.
The contents are subject to change without notice.

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PZ-43MR2U
PZ-50MR2U
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SAFETY NOTICE
Many electrical and mechanical parts in Plasma Display
television have special safety-related characteristics.
These characteristics are often not evident from visual
inspection, nor can protection afforded by them be
necessarily increased by using replacement components
rated for higher voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this manual; electrical
components having such features are identified by “ å”
and shaded areas in the Replacement Parts List and
Schematic Diagrams .
For continued protection, replacement parts must be
identical to those used in the original circuit.
The use of a substitute replacement parts which do not
have the same safety characteristics as the factory
recommended replacement parts shown in this service
manual, may create shock, fire or other hazards.
CAUTION: FOR CONTINUED
PROTECTION AGAINST A RISK
OF FIRE REPLACE ONLY WITH
SAME TYPE FUSE. F701 (T2A,
250V), F702 (T2A, 250V), F1702
(T4AL, 250V) FUSE.
WARNING
1. For continued safety, no modification of any circuit
should be attempted.
2. Disconnect AC power before servicing.
BEFORE RETURNING THE RECEIVER
(Fire & Shock Hazard)
Before returning the receiver to the user, perform
the following safety checks:
1. Inspect all lead dress to make certain that leads are
not pinched, and check that hardware is not lodged
between the chassis and other metal parts in the
receiver.
2. Inspect all protective devices such as non-metallic
control knobs, insulation materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacitor networks, mechanical
insulators, etc.
3. To be sure that no shock hazard exists, check for
leakage current in the following manner.
»Plug theAC cord directly into a 110~240 voltAC outlet,
and connect the DC power cable into the receiver's
DC jack. (Do not use an isolation transformer for this
test).
»Using two clip leads, connect a 1.5k ohm, 10 watt
resistor paralleled by a 0.15µF capacitor in series
with all exposed metal cabinet parts and a known
earth ground, such as electrical conduit or electrical
ground connected to an earth ground.
»Use anAC voltmeter having with 5000 ohm per volt,
or higher, sensitivity or measure theAC voltage drop
across the resisor.
»Connect the resistor connection to all exposed metal
parts having a return to the chassis (antenna, metal
cabinet, screw heads, knobs and control shafts,
escutcheon, etc.) and measure the AC voltage drop
across the resistor.
All checks must be repeated with the AC cord plug
connection reversed. (If necessary, a nonpolarized
adaptor plug must be used only for the purpose of
completing these checks.)
Any reading of 35V peak (this corresponds to 0.7
milliamp. peak AC.) or more is excessive and
indicates a potential shock hazard which must be
corrected before returning the monitor to the owner.
TO EXPOSED
METAL PARTS CONNECT TO
KNOWN EARTH
GROUND
IMPORTANT SERVICE SAFETY PRECAUTION
ËService work should be perfomed only by qualified service technicians who are thor-
oughly familiar with all safety checks and the servicing guidelines which follow:
AV
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE

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PZ-MR2T
PZ-43MR2U
PZ-50MR2U
DVM
AC SCALE
1.5k ohm
10W
0.15 µF
TEST PROBE
PRECAUTION:POURLAPROTECTION
CONTINUE CONTRE LES RISQUES
D'INCENDIE,REMPLACERLE FUSIBLE
PARUNFUSIBLEDE MEMETYPE F701
(T2A, 250V), F702 (T2A, 250V), F1702
(T4AL, 250V).
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AVIS POUR LA SECURITE
De nombreuses pièces, électriques et mécaniques, dans
les téléviseurs présentent des caractéristiques spéciales
relatives àla sécurité, qui ne sont souvent pas évidentes
àvue. Le degréde protection ne peut pas être
nécessairement augmentée en utilisant des pièces de
remplacement étalonnées pour haute tension,
puissance, etc.
Les pièces de remplacement qui présentent ces
caractéristiques sont identifiées dans ce manuel; les
pièces électriques qui présentent ces particularités sont
PRECAUTIONS A PRENDRE LORS DE LA REPARATION
ËNe peut effectuer la réparation qu' un technicien spécialisé qui s'est parfaitement
accoutumé à toute vérification de sécurité et aux conseils suivants.
identifiées par la marque " å" et hachurées dans la
liste des pièces de remplacement et les diagrammes
schématiques.
Pour assurer la protection, ces pièces doivent être
identiques àcelles utilisées dans le circuit d'origine.
L'utilisation de pièces qui n'ont pas les mêmes
caractéristiques que les pièces recommandées par
l'usine, indiquées dans ce manuel, peut provoquer des
électrocutions, incendies, radiations X ou autres
accidents.
AVERTISSEMENT
1. N'entreprendre aucune modification de tout circuit.
C'est dangereux.
2. Débrancher le récepteur avant toute réparation.
VERIFICATIONS CONTRE L'INCEN-DIE ET
LE CHOC ELECTRIQUE
Avant de rendre le récepteur à l'utilisateur, effectuer
les vérifications suivantes.
1. Inspecter tous les faisceaux de câbles pour s'assurer
que les fils ne soient pas pincés ou qu'un outil ne soit
pas placéentre le châssis et les autres pièces
métalliques du récepteur.
2. Inspecter tous les dispositifs de protection comme les
boutons de commande non-métalliques, les isolants,
ledosdu coffret,les couvercles oublindagesderéglage
et de compartiment, les réseaux de résistance-
capacité, les isolateurs mécaniques, etc.
3. S'assurer qu'il n'y ait pas de danger d'électrocution en
vérifiant la fuite de courant, de la facon suivante:
•Brancher le cordon d'alimentation directem-ent àune
prise de courant de 110-240V. (Ne pas utiliser de
transformateur d'isolation pour cet essai).
•Al'aide de deux fils àpinces, brancher une résistance
de 1.5 kΩ10 watts en parallèle avec un condensateur
de 0,15µF en série avec toutes les pièces métalliques
exposées du coffret et une terre connue comme une
conduite électrique ou une prise de terre branchée à
la terre.
•Utiliser un voltmètre CA d'une sensibilitéd'au moins
5000Ω/V pour mesurer la chute de tension en travers
de la résistance.
•Toucher avec la sonde d'essai les pièces métalliques
exposées qui présentent une voie de retour au châssis
(antenne, coffret métallique, tête des vis, arbres de
commande et des boutons, écusson, etc.) et mesurer
la chute de tension CA en-travers de la résistance.
Toutes les vérifications doivent être refaites après avoir
inversélaficheducordond'alimentation.(Si nécessaire,
une prise d'adpatation non polarisée peut être utilisée
dans le but de terminer ces vérifications.)
Tous les courants mesurés ne doivent pas dépasser
0,5 mA.
Dans le cas contraire, il y a une possibilitéde choc
électrique qui doit être supprimée avant de rendre le
récepteur au client.
AV
AUX PIECES
METALLIQUES
EXPOSEES
BRANCHER A UNE
TERRE CONNUE
0.15µF
SONDE D'ESSAI
DVM
ECHELLE CA

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PZ-MR2T
PZ-43MR2U
PZ-50MR2U
Specifications
Item AVC System, Model: PZ-50MR2U, PZ-43MR2U, PZ-MR2T
Color System American TV standard NTSC system
TV
Function PLL full synchronous detection, PLL digital synthesizer system
VHF/UHF VHF 2–13ch, UHF 14–69ch
CATV 1–125ch
Audio multiplex BTSC system
Terminals S-VIDEO in, AV in, COMPONENT in
INPUT 2 S-VIDEO in, AV in
INPUT 3 S-VIDEO in, AV in, COMPONENT in, RGB in
Antenna 75 UNBAL, F Type for VHF/UHF/CATV in
INPUT 4 S-VIDEO, AV in
PC INPUT 15 Pin mini D-Sub, Audio in
Monitor Out Terminal S-VIDEO out, AV out, Audio (Variable, Fixed)
Power Requirement AC 110–240 V, 50/60 Hz, 40 W (0.6 W Standby)
Dimensions 16 15/16 (W) 2 25/32 (H) 13 (D) inch (430 (W), 70 (H), 330 (D) mm)
Weight 9.7 lbs(4.4 kg)
Accessories Power Cord, Remote control unit, Two AA size batteries, System Cable,
Operation manual
Cercuit type
Tuner
Rear INPUT 1
Front
Rear
• Design and specifications are subject to change without notice.
Other Features
OSD Language English/French/Spanish
Picture & Picture, Still image, Dual Tuner System

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PZ-MR2T
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PZ-50MR2U
Operation Manual
DISPLAY OUTPUT-2
RS-232C
AC INPUT
110V - 24OV
DISPLAY OUTPUT-1
YP
B P R
S-VIDEO VIDEO R-AUDIO-L
COMPONENT
INPUT 1
INPUT 2
YP
B P R
S-VIDEO
COMPONENT
VIDEO R-AUDIO-L
INPUT 3
HD INPUT
MONITOR OUTPUT
ANT/CABLE 75OUT
ANT-A ANT-B
USEFORHDTVSIGNALSONLY.
NOTINTENDEDFORUSEWITH
COMPUTERS
Front view
CLEAR button*
POWER button INPUT 4 terminal (S-VIDEO)
INPUT 4 terminal (VIDEO)
PC INPUT terminal (AUDIO) INPUT 4 terminals (AUDIO)
PC INPUT terminal (ANALOG RGB)
AVC System
Rear view
INPUT 1 COMPONENT
terminals (Y, PB, PR)
INPUT 3 COMPONENT
video terminals
(Y, PB, PR)
MONITOR OUTPUT
terminal (S-VIDEO)
DISPLAY OUTPUT-2 terminal
DISPLAY OUTPUT-1
terminal
AC INPUT terminal
after RS-232C terminal
MONITOR
OUTPUT
terminal (VIDEO)
MONITOR OUTPUT
terminals (AUDIO L/R)
Antenna input
terminal (A)
Antenna input
terminal (B)
Antenna output
terminal
HD
INPUT
terminal
INPUT 3 terminal
(S-VIDEO)
INPUT 3 terminal
(VIDEO)
INPUT 3 terminals
(AUDIO L/R)
INPUT 1 terminal
(S-VIDEO)
INPUT 1 terminal
(VIDEO)
INPUT 1 terminals
(AUDIO L/R)
INPUT 2 terminal
(S-VIDEO)
INPUT 2 terminal
(VIDEO)
INPUT 2 terminals
(AUDIO L/R)
Door knob
How to open the door.
STANDBY/ON indicator
*If you’re having problems operating the AVC System and want to return to normal screen, even when it stays
on (the indicator lights green), press CLEAR on the AVC System. Pressing CLEAR resets the System as
shown below.
• AV MODE resets to STANDARD
• TV channel returns to initial channel setting(Air:2ch, Cable:1 or 2ch)
• Twin picture resets to normal
• Audio setting initializes
• SRS resets to Off.
• Image position initializes
• Pressing CLEAR will not work if the System is in standby mode (indicator lights red).
• Pressing CLEAR will not delete channel preset or secret number
you know your secret number. See Page for initialising factory preset values when you have forgotten your secret
number.
USE FOR HDTV SIGNALS ONLY.
NOT INTENDED FOR USE WITH
COMPUTERS
. See Page for initialising factory preset settings when

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PZ-MR2T
PZ-43MR2U
PZ-50MR2U
Remote control unit
•When using the remote control unit, point it at the Plasma
Display TV(Panel Unit).
TV
ANT-A/B INPUT
SURROUND
FRONT
TWIN
MODE
AV
POWER
MTS CC
PICTURE SELECT
SUB TWIN CH
FREEZE MODE
VOL CH
MUTE
MENU TV/SAT/DVD
FAVORITE CH
RECEIVER
DTV/DVD TOP
SOURCE DTV/SAT
DTV/SAT
VCR REC
ABCD
RETURN MENU
POWER
SET/
ENTER
MENU
GUIDE
INPUT VOL– VOL+
INFO
VIEW
SLEEP LEARN
EDIT/
ENT
FLASHBACK
DISPLAY
INPUT
TV VCRCBL
/SAT
/DTV
DVD
/LD
123
456
789
100
0
POWER
16
17
18
19
20
21
22
24
23
3
2
1
4
5
6
7
8
9
10
11
12 13 14
15
Set the mode switch toTV.
1TVPOWER: Switch the Plasma Display TV power on or
off.
2 FRONT SURROUND: Set SRS and FOCUS Sound
System mode.
3 AV MODE:Select an audio or video setting.
(AV mode: ST ANDARD, DYNAMIC,
MOVIE, GAME, USER.
PC mode: ST ANDARD, USER.)
4 VIEW MODE: Select the scr een size.
5 DISPLAY:Display the channel information.
6 SLEEP:Set the SLEEP timer.
7 FLASHBACK: Return to the previous channel or input
external mode.
8VOL : Set the volume.
9 MENU:Display the menu screen.
10 MENU RETURN: Return to the previous menu screen.
11 : Select a desired item on the setting screen.
12 ANT-A/B: Select the antenna. (A, B)
13 INPUT: Select an input sour ce of the Plasma Display
TV. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4,
PC)
14 :When pressed all buttons on the remote control unit
will light. The lighting will turn off if no operations
are performed within about 5 seconds. This button
is used for performing operations in dark places.
15 MTS: Select the MTS/SAP.
16 CC: Display captions during closed-caption source.
17 TWIN CH buttons
TWIN PICTURE:Set the twin picture mode.
Press again to return to normal
screen.
FREEZE: Set the still image. Press again to return to
normal screen.
SELECT: Select the active screen.
SUB INPUT: Select an input sour ce of sub screen.
TWIN CH :Select the channel of sub screen.
18 0 –9: Set the channel.
19 100 ENT: Select the three digit mode. Execute a
command of the channel.
20 CH : Select the channel.
21 MUTE: Mute the sound.
22 SET/ENTER: Execute a command.
23 FAVORITE CH
A, B, C, D: Select any of four preset channels. (See
page for details to set the FAVORITE CH.)
While watching you can toggle the set channels by
pressing A, B, C and D.
24 LED for transmission confirmation
Mode switch
+
–

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PZ-MR2T
PZ-43MR2U
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Preparation
Red
Black
Black Red
DISPLAY OUTPUT-2
RS-232C
AC INPUT
110V - 24OV
DISPLAY OUTPUT-1
YP
B P R
S-VIDEO VIDEO R-AUDIO-L
COMPONENT
INPUT 1
INPUT 2
YP
B P R
S-VIDEO
COMPONENT
VIDEO R-AUDIO-L
INPUT 3
HD INPUT
MONITOR OUTPUT
ANT/CABLE 75OUT
ANT-A ANT-B
System cable
AVC System (rear view)
Power cord
Plasma DisplayTV (Panel Unit) (rear view)
Power cord
System cable
(bottom view)
(GRAY)
(WHITE)
(GRAY) (WHITE)
Connecting the system
1.Connecting the system cable, the power cord and the speaker cables to the Plasma DisplayTV (Panel
Unit)
2.Connecting the system cable and the power cord to the AVC System
• TO PREVENT RISK OF ELECTRIC SHOCK, DO NOTTOUCH UN-INSULATED PARTS OF ANY CABLES WITH THE
POWER CORD CONNECTED.
Speaker cables
(GRAY GRAY with white stripe)
Speaker cable Speaker cable
As you apply pressure to this part,
insert the speaker cable. It is
important to match polarity when
connecting the speaker cables to the
terminals.
Insert the speaker cable
Lift up the snap clip.
Insert the wire into
the hole of the
connector.
Lower the snap clip
to grip the wire in
place.
•Two speaker cables of different lengths are supplied. As
shown in the diagram, connect the longer speaker cable
to the left speaker and the shorter to the right.

8
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
preparation
As viewed from the rear of the display.
How to route cables
A system cable clamp and five speaker cable clamps are included with the system for cable management. Follow the
diagram below for correct cable management.
System cable
Wedge the power cord and the
system cable into the groove on the
stand.
Power cord
Speaker cable
Stick the speaker cable clamps
(–) to the surface as shown.
System cable clamp
Speaker cable clamp
Speaker cable clamp
System cable
System cable clamp

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PZ-MR2T
PZ-43MR2U
PZ-50MR2U
preparation
++
_
_
Using the remote control unit
Use the remote control unit by pointing it towards the remote sensor window.
Objectsbetween theremote control unitand sensor windowmay preventproper
operation.
Cautions regarding remote control unit
•Do not expose the remote control unit to shock. In addition, do not expose the
remote control unit to liquids, and do not place in an area with high humidity.
•Do not install or place the remote control unit under direct sunlight. The heat
may cause deformation of the unit.
•The remote control unit may not work properly if the remote sensor window of
the Plasma Display TV(Panel Unit) is under direct sunlight or strong lighting.
In such case, change the angle of the lighting or Plasma Display TV(Panel
Unit), or operate the remote control unit closer to the remote sensor window.
Inserting the batteries
If the remote control unit fails to operate Plasma Display TV functions, replace
the batteries in the remote control unit.
1Open the battery cover. 2Insert batteries (two AA size
batteries, supplied with product).
•Place batteries with their terminals
corresponding to the ( ) and ( )
indicators in the battery compartment.
3Close the battery cover.
Cautions regarding batteries
Improper use of batteries can result in chemical leakage or explosion. Be sure to follow the instructions below.
•Do not use manganese batteries. When you replace the batteries, use alkaline ones.
•Place the batteries with their terminals corresponding to the ( ) and ( ) indicators.
•Do not mix batteries of different types. Different types of batteries have different characteristics.
•Do not mix old and new batteries. Mixing old and new batteries can shorten the life of new batteries or cause
chemical leakage in old batteries.
•Remove batteries as soon as they have worn out. Chemicals that leak from batteries can cause a rash. If you
find any chemical leakage, wipe thoroughly with a cloth.
•The batteries supplied with this product may have a shorter life expectancy due to storage conditions.
•If you used the remote control unit for an extended period of time, remove the batteries from it.
•WHEN DISPOSING OF USED BATTERIES, PLEASE COMPLY WITH GOVERNMENTAL REGULATIONS OR
ENVIRONMENTAL PROTECTION GUIDELINES THAT APPLY INYOUR COUNTRY OR AREA.

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PZ-MR2T
PZ-43MR2U
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Using external equipment
DISPLAY OUTPUT-2
RS-232C
AC INPUT
110V - 24OV
DISPLAY OUTPUT-1
YP
B P R
S-VIDEO VIDEO R-AUDIO-L
COMPONENT
INPUT 1
INPUT 2
YP
B P R
S-VIDEO
COMPONENT
VIDEO R-AUDIO-L
INPUT 3
HD INPUT
MONITOR OUTPUT
ANT/CABLE 75OUT
ANT-A ANT-B
DVD player
AVC System
(rear view)
AVC System
(front view)
AV Receiver
(Built-inTuner Amp) VCR
Digital tuner
Game console/
Camcorder
Computer
You can connect many types of external equipment to your Plasma Display TV, like a DVD player, VCR, Digital
tuner, computer, game console and camcorder. To view external source images, select the input source from
INPUT on the remote control unit or on the Plasma Display TV(Panel Unit).
•To protect all equipment, always turn off the AVC System before connecting to a DVD player, VCR, Digital tuner,
computer, game console, camcorder or other external equipment.
•Please refer to the relevant operation manual (DVD player, computer, etc.) carefully before making connections.
S-VIDEO
S-VIDEO
S-VIDEO
AV
S-VIDEO
AV
AV
AV
Y/P
B /P R
Y/P B /P R
RGB
PC-AUDIO
ANALOG RGB
AV
S-VIDEO

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Appendix
RS-232C port specifications
Return codeCommand 4-digits Parameter 4-digits
Computer Control of the Plasma Display TV (Panel Unit)
•When a program is set, the display can be controlled from the computer using the RS-232C terminal.
Theinput signal(computer/video) can beselected, thevolume can beadjusted andvarious other adjustments
and settings can be made, enabling automatic programmed playing.
• Attach an RS-232C cable cross-type (commercially available) to the supplied Din-D/sub RS-232C for the
connections.
•This operation system should be used by a person who is accustomed to using computers.
Communication conditions
Set the RS-232C communications settings on the computer to match the display's communications conditions.
The display's communications settings are as follows:
Baud rate:
Parity bit:
Data length:
Stop bit:
Flow control:
9,600 bps
8 bits
None
1 bit
None
Command format
Communication procedure
Send the control commands from the computer via the RS-232C connector.
The display operates according to the received command and sends a response message to the computer.
Do not send multiple commands at the same time. Wait until the computer receives the OK response before
sending the next command.
Eight ASCII codes CR
Command 4-digits:Command. The text of four characters.
Parameter 4-digits:Parameter 0 –9, x, blank, ?
Parameter
Input the parameter values, aligning left, and fill with blank(s) for the remainder. (Be sure that four values are input for the
parameter.)
When the input parameter is not within an adjustable range, “ERR”returns. (Refer to “Response code format”.)
No problem to input any numerical value for “x”on the table.
When “?”is input for some commands, the present setting value responds.
C1 C2 C3 C4 P1 P2 P3 P4
0055
100
30
0009
0
????
?
–

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PZ-43MR2U
PZ-50MR2U
Appendix
Command table
•About the command except being indicated here, it is outside the guarantee range of operation.
CONTROL ITEM COMMAND PARAMETER CONTROL CONTENTS
POWER SETTING It shifts to standby.
It input-switches by the toggle. (It is the same as an input change key)
It input-switches to TV. (A channel remains as it is. (Last memory))
It input-switches to INPUT1~INPUT4.
It input-switches to PC.
An input change is also included.
Although it can choose now, it is toggle operation in inside.
Although it can choose now, it is toggle operation in inside.
(Toggle)
Input terminal number (1–4)
AUTO
AV-Y/C
COMPONENT
AUTO
AV-Y/C
COMPONENT
RGB
(Toggle)
STANDARD
DYNAMIC
MOVIE
GAME
USER
Volume (0–60)
AV mode. (±15)
PC mode. (±90)
AV mode. (±30)
PC mode. (±60)
Only PC mode. (±90)
Only PC mode. (±20)
(Toggle) [AV]
Toggle operation.
An input change is included if it is not TV display.
In Air, 2–69ch is effective.
In Cable, 1–125ch is effective.
If it is not TV display, it will input-switch to TV.
If it is not TV display, it will input-switch to TV.
Change toggle operation of tuner A/B.
Toggle operation of a closed caption.
(Toggle)
Side Bar [AV]
S.Stretch [AV]
Zoom [AV]
Stretch [AV]
Normal [PC]
Full [PC]
Dot by Dot [PC]
Dot by Dot (W) [PC]
(Toggle)
OFF
SRS
FOCUS
FOCUS
+ SRS
One screen
Twin screens
The channel number of TV
The channel number of TV 1
The channel number of TV 1
(Toggle)
(Toggle)
OFF
CC1
CC2
T1
T2
(1~125)
AUTO
POWR
ITGD
ITVD
IAVD
IPCD
INP1
INP3
INPUT SELECTION A TOGGLE
INPUT SELECTION B
AV MODE SELECTION
VOLUME
POSITION
WIDEMODE
SRS
TWIN PICTURE
CHANNEL
ANT-A/B
CC
DIRECT
CH UP
CH DOWN
CHANNEL
H-POSITIONH-POSITION
V-POSITION
CLOCK
PHASE
INPUT 1
INPUT 3
AVMD
VOLM
HPOS
VPOS
CLCK
PHSE
SRSS
TWI N
DCCH
CHUP
CHDW
ANTS
CLCP
WIDE
0
x
0
*
x
0
0
1
2
3
1
2
0
*
*
*
*
*
0
0
*
x
x
x
0
1
2
3
4
5
1
1
2
3
4
0
1
2
3
4
5
6
7
8
*
*
1
2
3
4
5
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
*
*
*
*
*
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
*
*
*
*
*
*
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
_
TV
INPUT1-4
PC
•If an underbar (_) appears in the parameter column, enter a space.
•If an asterisk (*) appears, enter a value in the range indicated in brackets under CONTROL CONTENTS.
•As long as that from which the parameter ( ) in the table is a numerical value, it may write anything.
Return code (0DH)
Response code format
Normal response
Problem response (communication error or incorrect command)
Return code (0DH)
OK
ERR
+
–

13
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
Dimensions
(Unit: mm)

14
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
REMOVING OF MAJOR PARTS
1. Remove the six lock screws from the back of the top cabinet. Slide the top cabinet backward and detach it.
2. Remove the three lock screws from the front panel. Undo the three hooks at the top and the four hooks at the
bottom, and detach the front panel.
3. Remove the two hexagonal shafts from the front shield. Undo the four hooks on both sides and detach the
front shield.
4. Remove the three lock screws from the front unit and detach this unit.
5. Remove the one lock screw from the LED unit and detach this unit.
6. Remove the PC I/F unit and SR unit assemblies.
6-1. Remove the two hexagonal shafts each from the system cable (white) terminal and the RS-232C terminal,
both on the PC I/F unit.
6-2. Remove two lock screws from the system cable (gray) terminal also on the SR unit.
6-3. Remove the two lock screws from the PC I/F unit bracket.
6-4. Remove the four lock screws from the PC I/F unit and SR unit assemblies. Take out these assemblies.
6-5. Remove the three lock screws from the brackets of the PC I/F unit and SR unit assemblies. Detach the
shield.
6-6. Remove the six lock screws from the PC I/F unit. Detach this unit from the bracket.
6-7. Remove the two lock screws from the SR unit. Detach this unit from the bracket.
7. Remove the seven lock screws from the main unit and detach this unit.
AV Unit
6-1
9-1
Main Unit
Front Unit
Power Unit
LED Unit
SR Unit
PC I/F Unit
EMC Unit
Bottom cabinet
1
7
Top cabinet
6-1
8-3 8-1
8-2
6-5
6-4
8-4
9-2
10
6-7
5
2
6-6
4
2
3
3

15
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
8. Remove the AV unit.
8-1. Remove the coaxial cable from the antenna terminal.
8-2. Remove the three lock screws from the antenna terminals
8-3. Remove the six lock screws from the AV unit.
8-4. Remove the six lock screws from the AV unit and detach this unit.
9. Remove the EMC unit assemblies.
9-1. Remove the two lock screws from the EMC unit bracket.
9-2. Remove the two lock screws from the EMC unit and detach this unit.
10. Remove the three lock screws from the power unit and detach this unit.

16
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
ADJUSTMENT PROCEDURES
ËË
ËË
ËProcedure for turning ON the power
1. Connecting the system
(1)Using the system cable, interconnect the plasma display and the AVC system.
(2)Connect the plasma display to the AC power source.
(3)Connect the AVC System to the AC power source.
2. Procedure for turning ON the power
(1)Turn ON theAC power switch located on the plasma display.
The power indicator on the plasma display will start blinking in red.
(When the AC power switch on the AVC System is not ON, the power indicator on the plasma display always
blinks in red.)
(2)Turn ON the power switch located on the AVC System.
The power indicator on theAVC System will be illuminated in green. Simultaneously, the power indicator on the
plasma display will change from blinking in red to illumination in green. Now the system has started up.
(3)If the power indicators on the AVC System and on the plasma display are both illuminated in red, press the
power key located on the remote controller and the power button located on the plasma display. The power
indicators on the plasma display and on the AVC System will change from red to green. Now the system has
started up.
ËË
ËË
ËProcedure for upgrading the AVC System software
(1)With the power being OFF, open the top cabinet of the AVC System and then set the slide switch from the
NORMAL position to the WRITE position by inserting an insulated stick into the cutout located between the
WHITE port on the rear of the shield case for the PC I/F unit and the RS-232C port. (Or the software may be
upgraded by calling the process adjustment mode and using CENTER PROG UPDATE on the process
adjustment menu screen. This is discussed later.)
(2)Connect a program-installed PC to the AVC system using the RS-232C cross cable. (For the details of the
program, see Appendix.)
(3)Open the MS-DOS window on the PC and then go to the directory in which the software is installed.
(4)Start up the system to which the AVC System and plasma display have been connected.
(5)Run “vup.bat (tentative name)” at the MS-DOS prompt. The software will be upgraded.
(6)Load the file “civic_XXXXa.bhx main.bhx osd.bhx (tentative name)”.
It will take a couple of minutes until the file has been loaded. Never turn OFF the power or operate the system
during this rewriting period.
(7)After the file has been loaded, turn OFF the plasma display and the AVC System, and then return the slide
switch in the above step (1) back from the WRITE position to the NORMALposition. Now the software has been
upgraded.
ËË
ËË
ËProcedure for adjusting each part of the AVC System
1. The adjustments were made to the best settings at factory. If any setting deviates or if any readjustment is
regarded as necessary when any part has been replaced, perform the following steps.
2. Any parameter that has been changed in the process adjustment mode is stored on the memory. If any
readjustment is required, write down the current value before changing it.
3. Use a stable AC power source.
4. If the program is upgraded, it will take approximately 1 minute for the EEPROM to be initialized before any
video appears. Therefore, you will need to wait for this time period. Do not turn OFF the power or operate the
system during the period.
5. If the program is rewritten, preferably write down the parameters that have been changed within the process
adjustment (see “OSD menu and parameters displayed at manual adjustment”), initialize the EEPROM, and
then reenter the recorded values.

17
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
ËË
ËË
ËEntering a special mode
1. Entering the process adjustment mode
With the system being ON, turn OFF the main power of the plasma display. Next holding down the INPUT SELECT
and CH UP buttons on the plasma display itself, turn ON the main power again. Now the adjustment mode screen
shows up.
2. Adjustments in the adjustment process mode
[Steps]
Make adjustments using the process adjustment mode buttons, listed below.
[Description]
Following the items displayed on the process adjustment menu screen, adjust the settings given in their
adjustment tables.
3. Procedure for making factory settings
[Steps]
In the process adjustment mode, move the cursor to the line “INDUSTRYINIT” onscreen. Turn ON with the VOL
key and press the SET/ENTER key.
(Within the adjustment process, the channel settings remain unchanged. Once you exit the process adjustment
mode, the channel settings entered in the delivery adjustment mode become valid.)
[Description]
The user’s adjustment parameters and others will be set to the default values. Keep in mind that the channel
settings will also be initialized.
ËË
ËË
ËExiting the process adjustment mode
To exit the process adjustment mode, turn off the AVC System power.
ËË
ËË
ËOSD menu and parameters displayed at manual adjustment
»The default values may slightly differ depending upon the program version to be rewritten.
»The settings are not initialized to the default values by merely rewriting the program. (See the paragraph for
Procedure for adjusting each part of the AVC System.)
(1)Descriptions of special buttons in process adjustment mode
(All on the remote controller)
Cursor UP key : Returns to the previous page.
Cursor DOWN key: Proceeds to the next page.
Vol UP key : Increases the adjusted value by 1.
Vol DOWN key : Decreases the adjusted value by 1.
Cursor RIGHT key : Increases the adjusted value by 10.
Cursor LEFT key : Decreases the adjusted value by 10.
CH UP key : Moves up the cursor.
CH DOWN key : Moves down the cursor.
(2)Process adjustment menu table
The items displayed on the menu screen must be written down before replacing the EEPROM at the AVC
System side.
ËË
ËË
ËProcedure for replacing the PC I/F unit
Before replacing the PC I/F unit, write down the items displayed on each menu screen of the adjustment process.
If the I/F unit is completely broken and the above items cannot be jotted down in advance, follow the instructions
in “Adjustment procedures and items” and make all adjustments.

18
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
(2)Organization of process adjustment screen
The example of a display
Parameter display
Ë+B Adj3.3V
Ë+B Adj2.5V
ËSUB N358 Y
ËSUB N358 COLOR GAIN
ËSUB N358 TINT
ËN358 Y CONTRAST
ËN358 COLOR GAIN
ËMAIN CR GAIN N358
ËN358 TINT
ËMAIN CONTRAST 15K
ËMAIN SUB BRIGHT 15K
ËCOMP 15K Y CONTRAST
ËCOMP 15K COLOR GAIN
ËMAIN CR GAIN COMP 15K
ËCOMP HDTV CONTRAST
ËCOMP HDTV SUB BRIGHT
ËPEAK ACL SW
Setting range
0 ~ 255
0 ~ 255
0~ 63
0~ 63
0~ 63
0~ 63
0~ 63
0 ~ 255
0~ 63
0~ 63
0~ 15
0~ 63
0~ 63
0 ~ 255
0~ 63
0~ 63
OFF/ON
Description
3.3 V adjustment
2.2 V adjustment
Sub N358 Y level adiustment
Sub N358 color gain adjustment
Sub N358 tint adjustment
Main N358 Y contrast adjustment
Main N358 color gain adjustment
Main N358 Cr level adjustment
Main N358 Tint adjustment
Main Contrast adjustment (15k)
Main sub bright adjustment (15k)
COMP 15k Y level adjustment
COMP 15k Color gain adjustment
COMP 15k Cr level adjustment
COMP HDTV contrast level adjustment
COMP HDTV black level adjustment
The values for the above parameters should be written down before the EEPROM is replaced on
the AVC System.
Ë+Badj3.3V
Ë+Badj2.5V
KEY WRITE
INDUSTRY INIT
CENTER Version
OSD version
CVIC Version
MONITOR version
PANEL Version
FLASH version
MONITOR Model
MODEL select MAIN
MODEL select AV
Model Select MONITOR
STANDBY TYPE
128
024
OFF
OFF
MR MAIN E 2001/11/14A
MR OSD 2001/09/06A
W2001/10/02 17.28 X2001/10/02 V2001/09/12 09.12
F6 91xx
-00
-01
11
2
1
Page Input Source Distinguish Signal HDCP
1/16 INPUT1 No SIG HDCP:ON

19
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
ËË
ËË
ËProcedures before and after replacing the PC I/F unit
1) Before replacing the PC I/F unit, write down the values for the parameters listed on the 2nd and 3rd pages of
the Adjustment Process A screen.
If the values for the parameters cannot be written down because the PC I/F unit is completely broken or for any
other reason, make all the adjustments in accordance with the paragraph for Adjustment procedure and
parameters, rather than the following procedures. (End)
Set the parameters listed on the 2nd and 3rd pages of theAdjustment ProcessA screen to the values you have
written down.
ËË
ËË
ËAdjustment parameters
1) Analog adjustment
(1) Prior adjustment for AVC system chassis
(2) N358 signal adjustment
1 Process adjustment
mode
Adjustment item Description Adjustment procedure
2 AVC center 3.3V
adjustment
3 AVC center 2.5V
adjustment
1 Setup
Adjustment item Description Adjustment procedure
2 Tuner level adjustment
1.0Vp-p
3 MAIN N358 Y
CONTRAST
adjustment
0.7Vp-p
4 MAIN N358 COLOR
GAIN adjustment
5 MAIN N358 TINT
adjustment
0.3Vp-p
Smoothed
Call the process adjustment mode.
Adjust output voltage of DC/DC 3.3 V line to
3.25 ±0.01 V.
Adjust output voltage of DC/DC 2.5 V line to
2.6 ±0.01 V.
1. Receive the SPLIT FIELD color bar signal.
white 100%, 75% color bar, modulation
1. Adjust the V-LEVEL (R1121) control so that the tuner output
(TP1101) on the AV PWB (DUNTKA616) should be
1.0 ±0.02 Vp-p.
2. Adjust the V-LEVEL (R1219) control so that the tuner output
(TP1201) on the AV PWB (DUNTKA616) should be
1.0 ±0.02 Vp-p.
1. Adjust TB1274_MAIN output (pin (1) of P801)
to 0.7 ±0.01 Vp-p.
1. Adjust TB1274_MAIN output (pin (3) of P801) so that the
level shown below should be 0.3 ±0.01 Vp-p.
1. Adjust TB1274_MAIN output (pin (3) of P801) so that the
waveform should become as shown below.
Connect DC voltmeter to
TP1702.
Connect DC voltmeter to
TP1701.
»MAIN side
»SUB side

20
PZ-MR2T
PZ-43MR2U
PZ-50MR2U
6 MAIN N358 Cr level
adjustment
Adjustment item Description Adjustment procedure
7 MAIN N358
CONTRAST
adjustment
8 SUB N358 Y LEVEL
adjustment
9 SUB N358 COLOR
GAIN adjustment
0.3Vp-p
0.9Vp-p
0.68Vp-p
(3) Component 15 kHz signal adjustment
1 Setup
Adjustment item Description Adjustment procedure
2 COMPONENT
15 kHz Y level adjustment
3 COMPONENT
15 kHz COLOR GAIN
adjustment
4 COMPONENT
15 kHz Cr level
adjustment
0.7Vp-p
0.7Vp-p
Peak ACL: OFF
Check DC Tran 01
Press the TWIN PICTURE
key.
1. Adjust TB1274_MAIN output (pin (5) of P801) so that the
level shown below should be 0.3 ±0.01 Vp-p.
1. Turn off the PEAKACL control.Adjust the output (TP815) of
IC810 to have 1.1 Vp-p from the pedestal level.
Adjusted value: 1.1 ±0.02 V
1. Select the special TWIN PICTURE settings for adjustment
(so that the same video source is reflected on MAIN/SUB).
1. Adjust TB1274_SUB output (TP806) to 0.9 ±0.02 Vp-p.
1. Adjust TB1274_SUB output (TP805) so that the level shown
below should be 0.68 ±0.01 Vp-p.
1. Select the component 15 kHz source (100% white color bar
signal).
1. Adjust TB1274_MAIN output (pin (1) of P801)
to 0.7 ±0.01 Vp-p.
1. Adjust TB1274_MAIN output (pin (3) of P801) so that the
level shown below should be 0.7 ±0.01 Vp-p.
1. Adjust TB1274_MAIN output (pin (5) of P801) so that the
level shown below should be 0.7 ±0.01 Vp-p.