Sharp PZ-43MR2E User manual

PZ-43MR2E
PZ-50MR2E
SERVICE MANUAL
S12E6PZ50MR2E
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.
CONTENTS
Page
SHARP CORPORATION
PLASMA DISPLAY TV
(AVC SYSTEM)
»IMPORTANT SERVICE SAFETY PRECAUTION .....2
»SPECIFICATIONS................................................3
»OPERATION MANUAL ........................................4
»DIMENSIONS ....................................................11
»REMOVING OF MAJOR PARTS........................12
»ADJUSTMENT PROCEDURES.........................14
»DESCRIPTION OF MAJOR IC FUNCTIONS ....20
»TROUBLE SHOOTING TABLE ..........................43
»PRINTED WIRING BOARD BLOCK DIAGRAM ..50
»SYSTEM BLOCK DIAGRAM .............................52
»SIGNAL FLOW BLOCK DIAGRAM....................54
Page
»DC/DC CONVERTER BLOCK DIAGRAM .........56
»POWER BLOCK DIAGRAM...............................58
»PC I/F BLOCK DIAGRAM ..................................60
»OVERALL WIRING DIAGRAM........................... 62
»DESCRIPTION OF SCHEMATIC DIAGRAM .....66
»WAVEFORMS....................................................67
»SCHEMATIC DIAGRAM.....................................68
»PRINTED WIRING BOARD ASSEMBLIES......108
»PARTS LIST .....................................................115
»PACKING OF THE SET ...................................139
MODELS
PZ-43MR2E
PZ-50MR2E

2
PZ-43MR2E
PZ-50MR2E
DVM
AC SCALE
50k ohm
10W
0.15 µF
TEST PROBE
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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
AGAINSTA RISK OF FIRE REPLACE ONLY WITH
SAME TYPE F701 (T2A, 250V), F702 (T2A, 250V)
AND 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:

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PZ-43MR2E
PZ-50MR2E
Specifications
Item AVC System, Model: PZ-50MR2E, PZ-43MR2E
Colour System PAL/SECAM/NTSC 3.58/NTSC 4.43/PAL 60
TV
Function B/G, D/K, I, L/L’
VHF/UHF E2–E69ch, F2–F10ch, I21–I69ch, IR A–IR Jch
CATV Hyper-band, S1–S41ch
Auto Channel Preset 99 ch, Auto Preset, Auto Label, Auto Sort
STEREO NICAM/IGR
Terminals SCART (AV in, RGB in, TV out)
INPUT 2 SCART (AV in/out, S-VIDEO in, AV Link)
INPUT 3 SCART (AV in/out, S-VIDEO in, RGB in), Component
ANTENNA 75 qDin Type for VHF/UHF in
INPUT 4 S-VIDEO, AV in
PC INPUT 15 Pin mini D-Sub, Audio in
Audio (Variable, Fixed), S-VIDEO out, AV out
Power Requirement AC 220–240 V, 50/60 Hz, 40 W (0.8 W Standby)
Dimensions 430 (W), 70 (H), 330 (D) mm
Weight 4.4 kg
Accessories Power cord, Remote control unit, Two AA size batteries, System cable,
Two operation manuals
Receiving System
Tuner
Rear INPUT 1
Front
• Design and specifications are subject to change without notice.
AV OUTPUT

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PZ-50MR2E
Operation Manual
P B (C B )
COMPONENTP
R (C R )Y
R - AUDIO - L
INPUT 3
INPUT 2 INPUT 1
RS-232C DISPLAY OUTPUT-1
DISPLAY OUTPUT-2
AC INPUT
220–240V
AV OUTPUT
S-VIDEO VIDEO
Front view
INPUT 1 terminal
(SCART)
INPUT 3 terminals
(Y, P
B (C B ) , P R (C R ))
INPUT 2 terminal
(SCART)
AV OUTPUT terminal
(S-VIDEO)
DISPLAY OUTPUT-1 terminal
AC INPUT terminal
CLEAR button*
POWER button
RS-232C terminal
INPUT 4 terminal (S-VIDEO)
INPUT 4 terminal (VIDEO)
PC INPUT terminal
(AUDIO) INPUT 4 terminals (AUDIO)
INPUT 3 terminal (SCART)
AV OUTPUT terminal
(VIDEO)
AV OUTPUT terminals
(AUDIO)
PC INPUT terminal (ANALOG RGB)
* If the AVC System is switched on but it does not appear to be operating correctly, it may need resetting. In this
case press CLEAR on the front of the unit as shown in the diagram. Press CLEAR lightly with the end of a
ballpoint pen or other pointed object.
This will reset the System as shown below.
• AV MODE resets to STANDARD
• TV channel resets to channel 1
• Dual screen resets to normal
• Audio setting initialises
• SRS resets to Off
• Image position is initialised
A
• Pressing CLEAR will not work if the System is in standby mode (indicator lights red).
• Pressing CLEAR will not delete channel preset or password. See Page for initialising factory preset settings when you
know your password. See Page or initialising factory preset values when you have forgotten your password.
Rear view
ANTENNA INPUT terminal
AVC System
STANDBY/ON indicator
DISPLAY OUTPUT-2 terminal
Door knob
(How to open the door)

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PZ-50MR2E
1a(STANDBY/ON)
To switch the power on and off.
2du (FREEZE/HOLD for TELETEXT)
TV/External input mode: Change the still image mode.
TELETEXT mode: Freeze a multi-page on screen while other
pages are automatically updated. Press dagain to return to the
normal image.
3c(DUAL screen)
Set the dual picture mode. Press cagain to return to normal view.
4fv (WIDE MODE/ T/B/F)*
TV/External input mode: Change the wide image mode.
TELETEXT mode: Set the area of magnification. (full/upper half/
lower half)
5 AV MODE*
Select a video setting. AV MODE (STANDARD, DYNAMIC, MOVIE,
GAME, USER) PC MODE (STANDARD, USER)
6 SOUND
Select the sound multiplex mode.
7h(SRS and FOCUS)
Select SRS and FOCUS Sound System.
8A(FLASHBACK)
Press to return to the previous channel in normal viewing mode.
Press to return to the previous page in TELETEXT mode.
9il/ik(VOLUME)*
Set the volume.
10 (Reveal hidden forTELETEXT)
TELETEXT mode: Display hidden characters.
11 j(SUBPAGE forTELETEXT)
TELETEXT mode: Change the picture mode for sub-page selecting.
12 MENU
Display the Menu screen.
13 C(CHANNEL INFORMATION)
Display the channel information and time.
14 b(INPUT SOURCE)
Select an input source. (TV, INPUT 1, INPUT 2, INPUT 3, INPUT 4,
PC)
15 SLEEP
Set the SLEEP TIMER.
16 e(MUTE)
Mute the sound.
17 0 – 9
TV/External input mode: Set the channel.
TELETEXT mode: Set the page.
18 o(Digit for channel select)
Change the digits of the selected TV channel.
19 Colour (RED/GREEN/YELLOW/BLUE)
TELETEXT mode: Select a page.
20 CHa/CHb(w/x)
TV/External input mode: Select the channel.
TELETEXT mode: Set the page.
21 l(TOP Overview forTELETEXT)
TELETEXT mode: Display an index page for CEEFAX/FLOF
information. TOP OVER VIEW for TOP programme.
22 m(TELETEXT)
Select the TELETEXT mode. (all TV image, all TEXT image, TV/TEXT
image)
23 RETURN
MENU mode: Return to the previous menu screen.
24 ENTER
Execute a command.
Return to the initial image position after moving with a/b/c/d.
25 a/b/c/d(Cursor)
Select a desired item on the setting screen.
Move the picture on the screen.
1
2
3
4
5
6
7
8
9
10
11
12
14
15
13
16
17
18
19
20
21
22
23
24
25
Remote control unit
A
•When using the remote control unit, point it
at the Plasma Display TV (Panel Unit).
*“TV”, “INPUT1”, “INPUT2”, “INPUT3”,
“INPUT4”and “PC”modes can each store
the WIDE mode setting separately.
The same for AV mode and volume.
k

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Preparation
P B (C B )
COMPONENTP
R (C R )Y
R - AUDIO - L
INPUT 3
INPUT 2 INPUT 1
RS-232C DISPLAY OUTPUT-1
DISPLAY OUTPUT-2
AC INPUT
220–240V
AV OUTPUT
S-VIDEO VIDEO
System cable
AVC System (rear view)
Power cord
Plasma DisplayTV (Panel Unit) (rear view)
Power cord
System cable
(bottom view)
(GRAY)
(WHITE)
(GRAY) (WHITE)
Setting 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
L
•TO PREVENT RISK OF ELECTRIC SHOCK, DO NOT TOUCH UN-INSULATED PARTS OF ANY CABLES WITH THE
POWER CORD CONNECTED.
Speaker cables
(GRAYeGRAY 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.
Black
Red
Black
Red
A
•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.

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PZ-50MR2E
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
(2–4) to the surface as shown.
System cable clamp
Speaker cable clamp
Speaker cable clamp
System cable
System cable clamp

8
PZ-43MR2E
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preparation
+
+
__
Using the remote control unit
Use the remote control unit by pointing it towards the remote sensor window.
Objectsbetween theremotecontrolunit andsensor windowmay prevent proper
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.
Insuch case, change the angleof thelighting orPlasma Display TV,oroperate
the remote control unit closer to the remote sensor window.
1 Open the battery cover. 2 Insert batteries (two AA size
batteries, supplied with product).
•Place batteries with their terminals
corresponding to the (e) and (f)
indications in the battery compartment.
3 Close 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 (e) and (f) indications.
•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 will not be using the remote control unit for an extended period of time, remove the batteries from it.
L
•WHEN DISPOSING OF USED BATTERIES, PLEASE COMPLY WITH GOVERNMENTAL REGULATIONS OR
ENVIRONMENTAL PUBLIC INSTRUCTION'S RULES THAT APPLY INYOUR COUNTRY/AREA.
Inserting the batteries
If the remote control unit fails to operate Plasma Display TV functions, replace the batteries in the remote control
unit.

9
PZ-43MR2E
PZ-50MR2E
Using external equipment
P B (C B )
COMPONENTP
R (C R )Y
R - AUDIO - L
INPUT 3
INPUT 2 INPUT1
RS-232C DISPLAY OUTPUT-1
DISPLAY OUTPUT-2
AC INPUT
220–240V
AV OUTPUT
S-VIDEO VIDEO
Plasma DisplayTV
(Panel Unit)
(rear view)
(bottom view)
DVD player
AVC System
(rear view)
AVC System
(front view)
AV Receiver
(Built-inTuner Amp) VCR Decoder
Game console/Camcorder
Computer
Power cord
Power cord
You can connect many types of external equipment to your Plasma Display TV, like a decoder, VCR, DVD player,
computer, game console and camcorder. To view external source images, select the input source from bon
the remote control unit or INPUT on the Plasma Display TV (Panel Unit).
L
•To protect all equipment, always turn off the AVC System before connecting to a decoder, VCR, DVD player, computer,
game console, camcorder or other external equipment.
•The S-video signal only outputs when “Input 2”or “Input 3”is selected for “Y/C”, or when from the INPUT 4 terminal (S-
VIDEO). Only the S-video signal can output from the INPUT 4 terminal (S-VIDEO).
A
•Please refer to the relevant operation manual (DVD player, computer, etc.) carefully before making connections.

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Appendix
SCART (INPUT 1)
1. Audio right output
(TV Monitor out)
2. Audio right input
3. Audio left output
(TV Monitor out)
4. Common earth for audio
5. Earth for blue
6. Audio left input
7. Blue input
8. Audio-video control
9. Earth for green
10. Not used
11. Green input
12. Not used
13. Earth for red
14. Not used
15. Red input
16. Red/Green/Blue control
17. Earth for video
18. Earth for Red/Green/Blue
control
19. Video output
(TV Monitor out)
20. Video input
21. Plug shield
SCART (INPUT 2)
1. Audio right output
2. Audio right input
3. Audio left output
4. Common ear th for audio
5. Earth
6. Audio left input
7. Not used
8. Audio-video control
9. Earth
10. AV LINK control
11. Not used
12. Not used
13. Earth
14. Not used
15. Chroma S-Video input
16. Not used
17. Earth for video
18. Earth
19. Video output
20. Video input/S-video input
21. Plug shield
SCART (INPUT 3)
1. Audio right output
2. Audio right input
3. Audio left output
4. Common earth for audio
5. Earth
6. Audio left input
7. Blue input
8. Audio-video control
9. Earth
10. Not used
11. Green input
12. Not used
13. Earth
14. Not used
15. Red input/Chroma S-Video
input
16. Red/Green/Blue control
17. Earth for video
18. Earth
19. Video output
20. Video input/S-video input
21. Plug shield
13579111315171921
2468101214161820
Connecting pin assignments for SCART
Various audio and video devices may be connected via the SCART terminals.

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Dimensions
(Unit: mm)

12
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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 two 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.
Main Unit
AV Unit
Front Unit
Power Unit
LED Unit
SR Unit
PC I/F Unit
EMC Unit
Bottom Cabinet
1
7
Top Cabinet
6-2
8-1
6-1
9-1
6-3
6-5
6-4
8-2
9-2
10
6-7
5
2
6-6
4
2
10
11

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8. Remove the AV unit.
8-1. Remove the six lock screws from the AV unit.
8-2. 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.

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ADJUSTMENT PROCEDURES
ËProcedure for turning ON the power
1. Connecting the system
»Using the system cable, connect the Panel Unit and the AVC System.
»Connect the Panel Unit to the AC power source.
»Connect the AVC System to the AC power source.
2. Procedure for turning ON the power
»Turn ON the AC power switch located on the Panel Unit.
The STANDBY/ON indicator on the Panel Unit will start blinking in red.
(When the AC POWER button on the AVC System is not ON, the STANDBY/ON indicator on the Panel Unit
always blinks in red.)
»Turn ON the POWER button located on the AVC System.
The STANDBY/ON indicator on theAVC System will be illuminated in green. Simultaneously, the power indicator
on the Panel Unit will change from blinking in red to illumination in green. Now the system has started up.
»If the STANDBY/ON indicator on the AVC System is illuminated in red, press the POWER button located on the
remote control unit and the MAIN POWER button located on the Panel Unit. The STANDBY/ON indicators on
the Panel Unit and the AVC System will change from red to green. Now the system has started up.
ËProcedure for upgrading the software
(1)With the power being OFF, open the top cabinet for the AVC System and then set the slide switch from the
NORMAL position to the WRITE position by inserting a needle-like insulator 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.
(2)Connect the PC having the program installed, to the AVC System using the cross cable for the RS-232C port
(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 Panel Unit have been connected.
(5)Run “vup.bat (tentaive name)” at the MS-DOS prompt. The software will be upgraded.
(6)Load the file “civc_XXXXa.bhxmain.bhxosd.bhxt (tentaive name)”. It will take approximately a few 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 Panel Unit and theAVC System and then return the slide switch in
the above step 1 from the WRITE position to the NORMAL position. Now the software has been upgraded.
ËProcedure for adjusting each part of AVC System
»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 is replaced, perform the following steps.
»Any parameter that has been changed within the process adjustment is stored on the memory. If any readjustment
is required, write down the current value before changing it.
»Use a stable AC power source.
»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.
»If the program is rewritten, write down the parameters that have been changed within the process adjustment
(see “5”.OSD menu and parameters displayed at manual adjustment), initialize the EEPROM, and then reenter
the recorded values.

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3. Entering a special mode
1Entering the process adjustment mode
[Steps]
(1)When using the remote control unit:
Using the system cable, properly connect the Panel Unit and the AVC System, and then turn ON the
power.
After the system has started up, press the PROCESS ADJ button located on the remote control unit.
(2)When using buttons on the main unit:
Using the system cable, properly connect the Panel Unit and the AVC System.
Turn ON the power while holding down the INPUT and CH UP buttons located the Panel Unit.
[Description]
Various adjustments can be made manually.
2Entering the inspection process mode
[Steps]
After the system has started up, press the PROCESS ADJ button located on the remote control unit.
Set the parameter SIGNAL INFO to 1 on page 6 or 7 of the PROCESS ADJUSTMENT A MODE MENU.
Subsequently, make the necessary adjustments in accordance with the above menu.
3Procedure for setting up delivery
[Steps]
After the system has started up, press the DELIVERY SETUP button located on the remote control unit.
(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. The channel settings will also
be initialized.
4. Exiting a special mode
(1)Process adjustment mode: Press the PROCESSADJ button located on the remote control unit or turn OFF the
power.
(2)Inspection process mode: Set the parameter SIGNAL INFO to 0 on page 6 or 7 of the PROCESSADJA MODE
MENU or turn OFF the power.
(3)Delivery setup: After the delivery setup has been finished, the process adjustment mode is automatically
selected. To exit the process adjustment mode, press the PROCESSADJ button located on the remote control
unit or turn OFF the power.
5. OSD 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
Preparation for adjustment.)
(1)Descriptions of special buttons in process adjustment mode
Cursor UP key : Proceeds to the previous page.
Cursor DOWN key: Returns to the next page.
VOL UP key : Increases the adjusted value by 1.
VOL DOWN key : Decreases the adjusted value by 1.
Cursor LEFT key : Decreases the adjusted value by 10.
Cursor RIGHT key : Increases the adjusted value by 10.
CH UP key : Moves up the cursor.
CH DOWN key : Moves down the cursor.

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ËOrganization of process adjustment screen
Parameter display
Ë+B Adj3.3V
Ë+B Adj2.5V
ËPAL Y CONTRAST
ËPAL COLOR GAIN
ËMAIN CR GAIN PAL
ËMAIN SUBBRIGHT 15K
ËMAIN CONTRAST 15K
ËSUB PAL Y
ËSUB PAL COLOR GAIN
ËPEAK ACL SW
ËSECAM Y CONTRAST
ËSECAM COLOR GAIN
ËMAIN CR GAIN SECAM
ËN358 Y CONTRAST
ËN358 COLOR GAIN
ËMAIN CR GAIN N358
ËN358 TINT
ËCOMP 15K Y CONTRAST
ËCOMP 15K COLOR GAIN
ËMAIN CR GAIN COMP15K
ËCOMP HDTV SUB BRIGHT
ËCOMP HDTV CONTRAST
ËDATACOPY
Setting range
0 ~ 255
0 ~ 255
0~ 63
0~ 63
0 ~ 255
0~ 63
0~ 15
-30 ~ 30
0~ 63
OFF/ON
0~ 63
0~ 63
0 ~ 255
0~ 63
0~ 63
0 ~ 255
-30 ~ 30
0~ 63
0~ 68
0 ~ 255
0~ 63
0~ 15
OFF/ON
Description
3.3 V adjustment
2.2 V adjustment
PALY level adjustment
PAL colour density adjustment
PAL Cr level adjustment
Pedestal level adjustment (15 k)
PCB input amplitude adjustment (15 k)
Sub PAL Y level adjustment
Sub PAL colour density adjustment
SECAM Y level adjustment
SECAM colour density level adjustment
SECAM Cr level adjustment
N358 Y level adjustment
N358 colour density adjustment
N358 Cr level adjustment
N358 tone adjustment
COMP 15 k Y level adjustment
COMP 15 k colour density adjustment
COMP 15 k Cr level adjustment
COMP HDTV black level adjustment
COMP HDTV Y level adjustment
COMP HDTV colour density adjustment
The values for the above parameters should be written down before the EEPROM is replaced on
the AVC system.
Note: The contents on the adjustment process menu may be somewhat different depending on
the program's version-up.
Maker Select
Ë +Badj3.3V
Ë +Badj2.5V
KEY WRITE
Ë DATA COPY
INDUSTRY INIT
CENTER Version
OSD Version
CVIC Version
TTXP Version
MONITOR Version
PANEL Version
FLASH Version
MONITOR Model
Model Select MONITOR
STANDBY TYPE
SHARP
127
024
OFF
OFF
OFF
MR MAIN E 2001/11/28K
MR OSD 2001/09/10 A
W2001/10/02 17:28 X2001/10/02 V2001/09/12 09:12
TTX PRG 068
F6 91 xx
-00
-05
01
1
0
Page Input Source HDCP
INPUT1 No SIG1/16 HDCP:ON EUROPE EUROPE
Destination for MAIN unit Destination for AV unitDistinguish Signal

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6. Procedures 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.
7. Adjustment parameters
1) Analog adjustment
(1) Prior adjustment for AVC system chassis
(2) PAL signal adjustment
1 Destination check 1. Call the process adjustment mode.
2. Check that the destination is “Europe”.
Adjustment item Description Adjustment procedure
2 AVC center 3.3V
adjustment Connect DC voltmeter to
TP1702. Adjust output voltage of DC/DC 5 V line to
3.3 V.
Adjusted value: 3.25~3.29 V
3 AVC center 2.5V
adjustment Connect DC voltmeter to
TP1701. Adjust output voltage of DC/DC 2.5 V line to
2.6 V.
Adjusted value: 2.60~2.64 V
1 Setup 1. Set colour system to “PAL”.
2. Select PAL source.
100% colour bar signal including 100% white, such
as split field colour bar
Adjustment item Description Adjustment procedure
2 Tuner Y level
adjustment 1. Adjust TP1101 so that the Y signal without the chroma component should be 1.00 ±0.05 Vp-p
(between the bottom of sync signal and the white
peak).
3 PALY CONTRAST
adjustment 1. Adjust TB1274_MAIN output (TP803) to 0.7 ±0.05 Vp-p.
4 PAL COLOR GAIN
adjustment 1. Adjust TB1274_MAIN output (TP802) to
0.35 ±0.025 Vp-p.
5 MAIN CR GAIN PAL
adjustment 1. Adjust TB1274_MAIN output (TP801) to 0.35 ±0.05 Vp-p.
6 MAIN CONTRAST
adjustment Turn off the PEAK ACL control. Adjust the output (TP815) of IC810 to have 1.1 ±0.05 Vp-p from the
pedestal level.
Press the DUAL screen button. Select the special DUAL screen settings for adjustment
(so that the same video source is reflected on MAIN/
SUB).
7 SUB PAL Y adjustment 1. Adjust TB1274_SUB output (TP806) to
0.9 ±0.05 Vp-p.
8 SUB PAL COLOR
GAIN adjustment 1. Adjust TB1274_SUB output (TP805) to 0.9 ±0.05 Vp-p.
0.35V
0.35V

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(3) SECAM signal adjustment
(4) N358 signal adjustment
1 Setup 1. Set colour system to SECAM.
2. Select SECAM source.
100% colour bar signal including 100% white, such
as split field colour bar
Adjustment item Description Adjustment procedure
2 SECAM Y CONTRAST
adjustment 1. Adjust TB1274_MAIN output (TP803) to 0.7 ±0.05 Vp-p.
3 SECAM COLOR GAIN
adjustment 1. Adjust TB1274_MAIN output (TP802) to 0.35
±0.025 Vp-p.
4 MAIN CR GAIN
SECAM adjustment 1. Adjust TB1274_MAIN output (TP801) to 0.35
±0.025 Vp-p.
0.35V
0.35V
1 Setup 1. Set colour system to N358.
2. Select N358 source.
100% SMPTE colour bar or similar colour bar
signal including 100% white.
Adjustment item Description Adjustment procedure
2 N358 Y CONTRAST
adjustment 1. Adjust TB1274_MAIN output (TP803) to 0.7 ±0.05 Vp-p.
3 N358 COLOR GAIN
adjustment 1. Adjust TB1274_MAIN output (TP802) to 0.35
±0.025 Vp-p.
4 MAIN CR GAIN N358
adjustment 1. Adjust TB1274_MAIN output (TP801) to 0.35
±0.025 Vp-p.
0.35V
0.35V
5 N358 TINT adjustment 1. Adjust TB1274_MAIN output (TP802) so that
waveform becomes as illustrated below:
Smoothed

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(5) Component 15k Hz signal adjustment
(6) Component HDTV signal adjustment
2. Factory settings
(1) Data Copy
(2) Factory Setting
1 Setup 1. Select component 15k Hz.
2. Select component source.
100% colour bar signal including 100% white, like
split field colour bar
Adjustment item Description Adjustment procedure
2 COMP 15k
CONTRAST
adjustment
Adjust TB1274_MAIN output (TP803) to 0.7 ±0.05 Vp-p.
3 COMP 15k COLOR
GAIN adjustment Adjust TB1274_MAIN output (TP802) to 0.35 ±0.025 Vp-p.
4 MAIN CR GAIN COMP
15k adjustment Adjust TB1274_MAIN output (TP801) to 0.35 ±0.025 Vp-p.
0.35V
0.35V
1 Setup 1. Input HDTV (1080i) component signal.
2. Select component source.
100% colour bar signal including 100% white, like
split field colour bar
Adjustment item Description Adjustment procedure
2 COMP HDTV
CONTRAST
adjustment
Turn off the PEAK ACL control.
Adjust the output (TP815) of pin (11) of IC810 to have
1.1 ±0.05 Vp-p from the pedestal level.
1 DATACOPY 1. Using the adjustment key, set “ON”in the DATA
COPY line. Wait until “OFF”is displayed instead.
Finally turn off the power to quit the process
adjustment mode.
Adjustment item Description Adjustment procedure
1 INDUSTRY INIT Move the cursor to the INDUSTRY INIT line. Using the
Vol.UP key, turn off and on again, and press ENTER. "/
/////////" appears, telling that the program is now being
settings are complete. Be sure to wait until the sign
goes out.
Adjustment item Description Adjustment procedure
* Then turn off the AC power supply of theAVC system. (Be careful not to use the power switches of the remote control unit
and AVC system.)

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ÆDescription of Main ICs
»»
»»
»IC1301 (CXA2069Q)
This IC is a 7-input, 3-output selector.
The video signals other than those for the PC, components and RGB input, which have been input from each input
connector and the tuner, and all the audio signals are sent to the IC1301 and then selected.
Output 1 is used internally and output 3 in the monitor output.
When the S video input is output to the monitor, Y and C signals are mixed in this IC.
The video signals sent to the IC1301 are then input to the YC separation circuits, IC405 (main) and IC402 (sub).
The audio signals are input to the PC I/F Unit via IC2501 (sound processor).
»»
»»
»IC1401 (MM1519XQ)
This IC is a 4-input, 8-output video selector for component input.
TheAV3 component input,AV1, RGB input, and Teletext RGB signals are input to the IC1401. The output signals
go to the main, sub, and component channels.
»»
»»
»IC1601 (SDA5550M).
This IC is a microprocessor for Teletext.
Video signals are input to the IC1601, which then decodes the Teletex data and outputs it as RGB data.
»»
»»
»IC2501 (IX3371CE)
This IC is used to decode audio signals.
It serves as both the S IF decoder and the selector for the input audio data.
»»
»»
»IC801/IC802 (TB1274AF)
This IC synchronizes video and chroma signals for PAL/NTSC/SECAM colour televisions.
Its video circuit includes a high-performance image quality compensation circuit and its chroma circuit a PAL/
NTSC/SECAM automatic selection circuit. The PAL-M/N clock signals at 4.43 and 8.58 MHz are internally generated
for colour demodulation.
The PAL/SECAM demodulation circuit uses a base band signal processing system with built-in IH DL and is
therefore adjustment-free.
The IC801/IC802 has 4 lines for YC signal input, 2 lines for RGB signal input, and 2 lines for colour difference
signal input. It receives colour different signals for the main and sub channels from IC405 (main), IC402 (sub), and
IC1401 in the former stage, and provides 1 line for colour difference signal output.
»»
»»
»IC803 (CXA2101Q)
This IC consists of a base band signal processing section for colour different input, an RGB signal processing
section, and a 4-line video switch (including HV synchronizing signal processing).
Inputselection isperformed byINPUT-SEL(I2CBUS). YCbCr,HD YPbPr, GBR and their respective HV synchronizing
signals are input to each line.
As the multi-scanning compliance range, a horizontal scanning frequency of 15~60 kHz can be input.
»»
»»
»IC1901 (IX3566CE)
This IC is FPGA for the synchronizing system.
It creates sand castle pulses for IC803 and generates horizontal blanking signals.
»»
»»
»IC604 (TA1318AF)
This IC synchronizes TV component signals.
The IC804 incorporates the necessary functions for measuring the frequency of input signals and synchronous
replay into a single chip, and is applicable for horizontal synchronous replay (15.75, 31.5, 33.75, and 45 kHz) and
vertical synchronous replay (525I, 525P, 625I, 750P, 1125I, 1125P, PAL 100 Hz, and NTSC 120 Hz).
DESCRIPTION OF MAJOR IC FUNCTIONS