Aiwa CT X5500, CT Z5500, CT X5200, CT Z5200, CT X5300 – Stereo Cassette Car Receiver - schematic diagram

Mechanism types

CT X5500, CT Z5500 – Basic Mechanism CDS-50-WP1

CT X5200, CT Z5200 – CT X5300 - Basic Mechanism CDS-50-WP2

Semiconductor Bases

Schematic – CTX5200, CTZ5200, CTX5300

Schematic CTX5500, CTZ5500

Logic board schematic

Samsung power board circuit BN44 00369A

 

PFC and Multi section

Inverter section

Hisense HE40M21, 40M2100, 40M2106, 40M2108, 40MEC2150S, 40MEC2155 Models Chassis MSD3463) – how to enter the service mode, How to update the Software

 

How to enter the Factory OSD Menu

With user’s RC
Power on the TV.
1. Press “Menu” button and call up User OSD Menu.
2. Select “ Sound” -> press “OK” button on RC to ensure then move (Down)  button to “Balance” item.
3. Press number key 1->9->6 ->9 in sequence when “Balance” item is focused.
Note: If necessary, re-do number keys.
4. Factory OSD appears.
Note: DC power off that can exit factory OSD menu.

Software upgrading

USB upgrade
USB upgrade includes two methods. One is USB directly upgrade the other is USB menu upgrade.

Upgrading file rename – MSD3463 (underscore) SN51 (underscore) 75.bin

USB directly upgrade

Put the MSD3463-SN51-75.BIN In root diarectory of USB disk.  Unplug the TV power cord and plug the U disk to the TV

Plug the TV power cord ,TV will update automatically. Update processing red and blue led indicator flash alternately slow.

When Update finished, the red and blue led indicator flash alternately fast. and re-plug the power cord to power on

USB menu upgrade

Insert USB disc thet only have one upgrading file XX.bin in root disk

Enter the Factory OSD Menu

Choose Factory menu > Function > Software Update (USB) to start the update

After the process is over, unplug the USB disk and re plug the power cord to power on.

Mstar Tool upgrade

Install the USB-serial driver

(PL 2303 Driver installer.rar)

For the first connecting ,the PC will recognize and automatically install the USB device.the process is just like the installation of mini disk.

Hardware connecting
You can update the software through a special tool a USB-to –serial port (as following)
USB port to your PC and the serial to the TV’S VGA port.

For the first connecting, PC will recognize and automatically install the USB device.  The process is must like the installation of a mini disk.

Mstar ISP Tool

Install the ISP_Utility V4.5.2.8 -------only for the first time update.
Connect the PC and main board with the USB-serial board
Click the” Config “button. And then a dialog window will show as below.
Draw on the front of “Use USB”
Port Type setting is USB
Base Addr setting is 0x38C
ISP Slave Address choose 0x92
Serial Debug Slave Address choose 0xB2

Click the Connect button if appear the following figure, It indicates that the ISP_TOOL has connected.

If appear the following figure It indicates that the ISP_TOOL has not connected. Please click the Dis Con button and click Connect button to connect again.. Check: a Power on b USB board connect c connection line match.

Click the“Read ”button

Click the“Auto”button and choose parameters as following.

Then Click the “Run” button to start

If show” error message “then click the “Run” button again and again till show the dialog window.

Philips 43PUT6002 LCD TV how to enter the service mode, main power supply and amplifier schematic, how to upgrade the software

 

Factory Mode (Service Mode)
Press the following key sequence on a standard RC transmitter: “1999” directly followed by MENU.

Software Upgrading, Panel PN
Software Upgrading

 Method 1: The following update is for .bin file.
1. Rename the file to “MstarUpgrade.bin”
2. Prepare a USB memory.
3. Copy the software to USB flash disk(root directory).
4 Press [menu+1999 ],enter the factory menu, Choose [main Updates], then press

5. Software update menu will pop up when press confirm key, then select “Yes” to confirm:

6. When the TV software is updated, the TV will turn on again automatically. Remove your USB flash drive.

Method 2
Copy the software to USB flash disk ,Keep pressing VOL+ key on the machine panel, power on the machine, the standby light flashes quickly after about 5 seconds, standby light extinguish and turn into lighting after about 3 minutes, means that the upgrade is
completed.
Caution：
When the machine Upgrading (U disk light flash), do not remove U disk or switch off the power, otherwise it will destroy the software and lead cannot upgrade.
The machine must be power off when inserted or pulled out U disk, to avoid U disk or damage the machine.

Panel PN
Press the following key sequence on a standard RC transmitter: “1999” directly followed by MENU, can see the panel type information from factory menu, see the Panel PN from the configuration table.

Power Supply Unit
All power supplies are a black box for Service. When defective, a new board must be ordered and the defective one must be returned, unless the main fuse of the board is broken. Always replace a defective fuse with one with the correct specifications! This part is available in the regular market.  Consult the Philips Service web portal for the order codes of the boards.
Important delta’s with the platform are:
New power architecture for LED backlight
“Boost”-signal is now a PWM-signal + continuous variable
The control signals are:
PS-ON
Lamp “on/off”
DIM (PWM) (not for PSDL)
No detailed information is available because of design protection issues.
+12 output (on-mode)
+12V_audio (audio AMP power)
Output to the display; in case of
- IPB: High voltage to the LCD panel
- PSL and PSLS (LED-driver outputs)
- PSDL (high frequent) AC-current.
Diversity
The diversity in power supply units is mainly determined by the diversity in displays.
The following displays can be distinguished:
CCFL/EEFL backlight: power panel is conventional IPB
LED backlight:
- side-view LED without scanning: PSL power panel
- side-view LED with scanning: PSLS power panel
- direct-view LED without 2D-dimming: PSL power panel
- direct-view LED with 2D-dimming: PSDL power panel.
PSL stands for Power Supply with integrated LED-drivers.
PSLS stands for a Power Supply with integrated LED-drivers with added Scanning functionality (added microcontroller).
PSDL stands for a Power Supply for Direct-view LED backlight with 2D-dimming.

DC/DC Converters
The on-board DC/DC converters deliver the following voltages(depending on set execution):
+5V, permanent voltage for the Stand-by Power system
+3V3-STANDBY,voltage for IR/Key board
+12V, input from the power supply for the panel common(active mode)
+12V-AUDIO1 for the AUDIO AMP
+1V8(AS1117-18))-EMMC, +V-EMMC-IO, voltage for EMMC when TV on
+1V5-DDR, voltage for DDR in main chip
TUNER_3V3(AS1117-33), supply voltage for tuner
+5V-SW, input intermediate supply voltage for USB Power,-WIFI,voltage for WIFI
+1.2VA_T2(MSH61110A1), +1.2V_T2 voltage for DTMB.
+1V2A(MSH61110A), supply voltage for MSD6A638

Video and Audio Processing - MSD6A638
The MSD6A638 is the main audio and video processor (or System-on-Chip) for this platform. It has the following features:
1. Worldwide multi-standard analog TV demodulator
2. ATSC/DVB-T/DVB-C/DTMB/ISDB-T demodulators
3. UHD@60Hz direct drive
4. Powerful CPU core
5. A transport de-multiplexer
6. A muti-standard video decoder (including VP9)
7. Rich format audio codec
8. H.264 & VP8 encoder
9. HDMI 2.0 receiver with 3D support
10. MHL 3.0 & Standby Charging
11. Ethernet MAC+PHY
12. Local dimming (LED backlight)
13. Two-link LVDS, V-by-one
OVERVIEW
The MediaTek MSD6A638 family consists of a DTV front-end demodulator, a backend decoder and a TV controller and offers high integration for advanced applications. It integrates a transport de-multiplexer, a high definition video decoder, an audio decoder, a two-link LVDS transmitter, a V-by-One transmitter, and a NTSC/PAL/SECAM TV decoder with a 3D comb filter (NTSC/PAL). The MSD6A638 enables consumer electronics manufacturers to build high quality, low cost and feature-rich DTV.
World-Leading Audio/Video Technology: The MSD6A638 supports Full-HD MPEG1/2/4/h.264/DiviX/VC1/RM/AVS/VP6/VP8 and HD .264/AVC, 265/HEVC, VP9 video decoder standards, and JPEG. The MSD6A638 also supports MediaTek MDDiTM de-interlace
solution which can reach very smooth picture quality for motions. A 3D comb filter added to the TV decoder recovers great details for still pictures. The special color processing technology provides a natural, deep colors and true studio quality video. Moreover, the MSD6A638 family has built-in high resolution and high-quality audio codec.
Rich Features for High Value Products: The MSD6A638 family enables true single-chip experience. It integrates high-quality HDMI2.0, high speed VGA ADC, two-link LVDS, V-by-One,USB2.0/3.0 receiver, Ethernet MAC+PHY, Quad core CPU and 512K bytes L2 cache,
OpenGL ES 1.1/2.0/3.0/3.1, OpenCL 1/0/1.1/1.2 compliant 3D graphic engine, and ATSC/DVB-T/DVBC/DTMB/ISDB-T demodulators.
All New UHD@60Hz Experience: The MSD6A638 family provides consumers with UHD 60Hz direct drive.
WW Common Platform Capability: The MSD6A638 family supports ATSC, DVB-T, DVB-C,DTMB and ISDB-T demodulation functions.
It reserves transport stream inputs for external demodulators for other countries or areas. TV maker can easily port the same UI to worldwide TV models. First-class adjacent and co-channel rejection capability grants excellent reception.Professional error- concealment provides stable, smooth and mosaic-free video quality.

Power board circuit diagram

Audio amplifier circuit diagram

Panasonic LCD TV - LED blinking codes, How to enter the service mode, Data copy, Option bytes, Self check and Power board [TNPA5852] schematic - TX-L32E6E-LA41 Chassis

 

Service Mode Function
MPU controls the functions switching for each IICs through IIC bus in this chassis. The following setting and adjustment can be adjusted by remote control in Service Menu
How to enter into Service Mode
While pressing [VOLUME ( - )] button on the main unit, press the [RED] button on the remote control for 3 times within 2 seconds.
How to exit
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.

Service Tool Mode
How to access
1. Select [SRV-TOOL] in Service Mode.
2. Press [OK] button on the remote control.

Display of SOS History
SOS History (Number of LED blinking) indication.
From left side; Last SOS, before Last, three occurrence before, 2nd occurrence after shipment, 1st occurrence after shipment.
This indication will be cleared by [Self/check indication and forced to factory shipment setting].
Power ON Time, On/Off
Note: To display TIME/COUNT menu, highlight position, then press MUTE for 3sec.
Time: Cumulative power on time, indicated hour: minute by decimal.
On/Off: Number of On/Off switching by decimal.
Note: This indication will not be cleared by either of the self-checks or any other command.
Exit
Disconnect the AC cord from wall outlet or switch off the power with [Power] button on the main unit.

Hotel Mode
1. Purpose
Restrict a function for hotels.
2. Access command to the Hotel mode setup menu.
In order to display the Hotel mode setup menu, please enter the following command (within 2 second).
[TV] : Vol.[Down] + [REMOTE] : AV (3 times) Then, the Hotel mode setup menu is displayed.

3. To exit the “Hotel mode”:
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
4. Explain the Hotel mode setup menu.

Data Copy by USB Memory
Purpose
a) Board replacement (Copy the data when exchanging A-board):
When exchanging A-board, the data in original A-board can be copied to USB Memory and then copy to new A-board.

b) Hotel (Copy the data when installing a number of units in hotel or any facility):
When installing a number of units in hotel or any facility, the data in master TV can be copied to USB Memory and the copy to other TVs.

Preparation
Make pwd file as startup file for (a) or (b) in an empty USB Memory.
1. Insert an empty USB Memory to your PC.
2. Right-click a blank area in a USB Memory window, point to New, and then click text document. A new file is created by default (New Text Document.txt).
3. Right-click the new text document that you just created and select rename, and then change the name and extension of the file to the following file name (a) or (b) and press ENTER. File name:
(a) For Board replacement: boardreplace.pwd
(b) For Hotel: hotel.pwd
Note:
Please make only one file to prevent the operation error.
No any other file should be in USB Memory.

Panasonic LCD TV - LED blinking codes, How to enter the service mode, Data copy, Option bytes, Self check and Power board [TNPA5852] schematic - TX-L32E6E-LA41 Chassis

Data Copy from TV set to USB Memory
1. Turn on the TV set.
2. Insert USB Memory with a start-up file (pwd file) to USB Terminal.
On-screen Display will be appeared according to the start-up file automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement: 2770
(b) For Hotel: 4850
Data will be copied from TV set to USB Memory.
It takes around 2 to 6 minutes maximum for copying.
4. After the completion of copying to USB Memory, remove USB Memory from TV set.
5. Turn off the TV set.
Note:
Following new folder will be created in USB Memory for data from TV set.
(a) For Board replacement: user-setup
(b) For Hotel: hotel

Data Copy from USB Memory to TV set
1. Turn on the TV set.
2. Insert USB Memory with Data to USB Terminal.
On-screen Display will be appeared according to the Data folder automatically.
3. Input a following password for (a) or (b) by using remote control.
(a) For Board replacement: 2771
(b) For Hotel: 4851
Data will be copied from USB Memory to TV set.
4. After the completion of copying to USB Memory, remove USB Memory from TV set.
(a) For Board replacement: Data will be deleted after copying (Limited one copy).
(b) For Hotel: Data will not be deleted and can be used for other TVs.
5. Turn off the TV set.
Note:
1. Depending on the failure of boards, function of Data for board replacement does not work.
2. This function can be effective among the same model numbers.

Option Bytes Description

Self Check
How to access
Self-check indication only:
While pressing [VOLUME ( - )] button on the main unit, press [OK] button on the remote control.
Self-check indication and forced to factory shipment setting:
While pressing [VOLUME ( - )] button on the main unit, press [MENU] button on the remote control for more than 3 seconds.
How to exit
Switch off the power with the [POWER] button on the main unit.

[If the CCU ports have been checked and found to be incorrect or not located then " - - " will appear in place of "O.K.".]

Power LED blinking timing chart
1. Subject
Information of LED Flashing timing chart.
2. Contents
When abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by number of blinking of the Power LED on the front panel of the unit.

LCD Panel Test Mode
Purpose:
To find the possible failure point where in LCD Panel or Printed Circuit Board when the abnormal picture is displayed.
How to Enter:
While pressing [VOLUME ( - )] button of the main unit, press [YELLOW] button of the remote control three times.
How to Exit:
Switch off the power with the [POWER] button on the main unit or the [POWER] button on the remote control.
How to confirm:
If the abnormal picture is displayed, go into LCD Panel test mode to display the several test patterns.
And then, judge by the following method.
Still abnormal picture is displayed: The cause must be in LCD Panel.
Normal picture is displayed: The cause must be in A board.
Remarks:
The test pattern is created by the circuit in LCD Panel.
In LCD Panel test mode, this test pattern is displayed unaffected by signal processing for RF or input signal.
If the normal picture is displayed, LCD Panel must be okay and the cause of failure must be in A board.

Adjustment Method

Power board schematic [TNPA5852]

Sony KV-XA34M30A-RM-952 – South Africa – How to enter the service mode, service mode adjustments, LED blinking error codes, and schematic

 

SELF DIAGNOSTIC FUNCTION (LED blinking error codes)

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically begin to flash.
The number of times the lamp flashes translates to a probable source of the problem. A definition of the STANDBY/ TIMER lamp flash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these problems occur.
DIAGNOSTIC TEST INDICATORS
When an errors occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the problem. If there is more than one error, the lamp will identify the first of the problem areas.
Result for all of the following diagnostic items are displayed on screen. No error has occurred if the screen displays a “0”.

Note 1: If a + B over current is detected, stoppage of the vertical deflection is detected simultaneously.  The symptom that is diagnosed first by the microcontroller is displayed on the screen.
Note 2: Refer to screen (G2) Adjustment in section.

DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT

STOPPING THE STANDBY/TIMER FLASH
Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER lamp from flashing.
SELF-DIAGNOSTIC SCREEN DISPLAY
For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it is possible to bring up past occurances of failure for confirmation on the screen:
[To Bring Up Screen Test]
In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:
[Screen display] / channel [5] / Sound volume [-] / Power ON
˘
Note that this differs from entering the service mode (mode volume [+])

Self-Diagnosis screen display

HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY
Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen during repairs. When you have completed the repairs, clear the result display to “0”.
Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after completion of the repairs.
[Clearing the result display]
To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the diagnostic screen is being displayed.  Channel [8] / 0
[Quitting Self-diagnostic screen]
To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

SELF-DIAGNOSTIC CIRCUIT

[+B over current OCP] Occurs when an over current on the +B(135) line is detected by Q604. If Q604 go to ON and the voltage to pin 18 of IC301 should go down when V.SYNC is more than seven verticals in a period, the unit will automatically turn off.

Vertical deflection stopped] Occurs when an absence of the vertical deflection pulse is detected by Q509 and IC001 shut down the power supply.
Vertical deflection over current] Occurs when an over current on V drive line is detected by Q507. Power supply will be shut down when detect this by IC001.
White balance failure] If the RGB levels* do not balance or become low level within 5 seconds, this error will be detected by IC301. TV will stay on, but there will be no picture.
* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)

"RESET" FUNCTION
1. Purpose
If a customer faces some setting problem that cannot be solved, using the "RESET" function some items will be reset to its original setting (shipment condition)
2. How to Operate
The way to access to the "RESET" Function:-
a) By pressing "MENU" button or "SELECT" button (for non-menu models) on the Front Key Input and hold it down for 5 seconds.
3. Subsequent of Operation
Sequential to the resetting operation (either methods being used in No. 2), TV set would shut down once and automatically turn on again. The power-off duration is expected to be about 500msec. An OSD message, "RESET" tentatively will be displayed for 10 sec after IK status gets stable.
As a result, some items will be reset to an initial condition (shipment condition) whereas some other remains at the last selection by user.
Items that remains at the last selection by user
Reset Items
Program No., Favorite CH Setup, PIC rotation, OSD Language, Fine tuning, TV System, Skip.

FOCUS ADJUSTMENT
1) Receive digital monoscope pattern.
2) Set "AV CONTROL" to "DYNAMIC"
3) a) Adjust FOCUS VR so that centre of the screen becomes just focus.
4) Change the receiving signal to white pattern and blue back.
5) Confirm MAGENTA RING is not noticeable, Incase magenta is very obvious, adjust a FOCUS VR to take balance between MAGENTA RING and FOCUS.
FLYBACK TRANSFORMER (T503)
Screen
Focus
WHITE BALANCE ADJUSTMENT
1) Set to Service Mode. ADJUSTMENTS WITH COMMANDER
2) Input white raster signal.
3) Set the PICTURE to minimum.
4) Select GCT (WHB 4) and BCT (WHB 5) with [1] and [4], and adjust the level with [3] and [6] for the best white balance.
5) Set the PICTURE to maximum.
6) Select GDR (WHB 1) and BDR (WHB 2) with [1] and [4], and adjust the level with [3] and [6] for the best white balance.
7) Write into the memory by pressing [MUTING] then [0].
SUB BRIGHT ADJUSTMENT
1) Set to service mode.
2) Input a staircase signal of black to white from the pattern generator.
3) BRIGHTNESS .... 50%.
PICTURE ............MINIMUM
4) Select SBR (WHB7) with [1]and [4], and adjust SBR (WHB7) level with [3] and [6] so that the second stripe from the right is dimly lit.
G2 (SCREEN) AND WHITE BALANCE ADJUSTMENTS
G2 (SCREEN) ADJUSTMENT
1) Set the PICTURE to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C6 board cathode to the oscilloscope.
4) Adjust BRIGHTNESS to obtain the cathode voltage to the value below.
5) Adjust G2 (screen) on the FBT until picture shows the point before cut off.

Service mode

ADJUSTMENTS WITH COMMANDER
Service adjustments to this model can be performed using the supplied Remote Commander RM-952.
a. ENTERING SERVICE MODE
With the unit on standby  press  Display > 5 > Volume (+) > Power.  This operation sequence puts the unit into service mode.

Service mode screen display

METHOD OF CANCELLATION FROM SERVICE MODE
Set the standby condition (Press [POWER] button on the commander), then press [POWER] button again, hereupon it becomes TV mode.
METHOD OF WRITE INTO MEMORY
1) Set to Service Mode.
2) Press [1] (UP) and [4] (DOWN), to select the adjustment.
4) Press [MUTING] button to indicate WRITE on the screen.
5) Press [0] button to write into memory.
MEMORY WRITE CONFIRMATION METHOD
1) After adjustment, pull out the plug from AC outlet, and then plug into AC outlet again.
2) Turn the power switch ON and set to Service Mode.
3) Call the adjusted items again to confirm adjustments were made.

ADJUSTMENT METHOD
Item Number 00 of device GEO
This explanation uses H-Position as an example.
1. Select “GEO 00 HPS” with the 1 and 4 buttons.
2. Raise/lower the data with the 3 and 6 buttons.
3. Select the optimum state. (The standard is 1F for PAL reception.)
4. Write with the [MUTING] button. (The display changes to WRITE.)
5. Execute the writing with the - button. (The WRITE display will be changed to red color while executing, and back to SERVICE.)

Use the same method for all Items. Use 1 and 4 to select the adjustment item, use 3 and 6 to adjust, write with [MUTING], then execute the write with -.
Note : 1. In [WRITE], the data for all items are written into memory together.
2. For adjustment items that have different standard data between 50Hz or 60Hz, be sure to use the respective input signal after adjustment.

PICTURE QUALITY ADJUSTMENTS - SUB COLOR ADJUSTMENT
1. Input a PAL color-bar.
2. Set to the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
3. Connect an oscilloscope to pin1(B OUT) of CN305, A board.
4. Set to Service Mode and select SAJ 3 ‘SCL’ with 1 and 4 of the commander then adjust to VB2=VB3=VB4 with 3 and 6.
5. Press [MUTING] → - of the commander to write the data.
6. Adjust SAJ 3 ‘SCL’ as step 2 to 5 when receiving NTSC color-bar.

SUB HUE ADJUSTMENT
1. Select Video.
2. Input a NTSC, color-bar, into Video.
3. Set the following condition:
PICTURE 100%, BRIGHTNESS 50%, COLOR 50%
4. Connect an oscilloscope to pin 1 (B OUT) of CN305, A board.
5. Select SAJ 1 ‘SHU’ with 1 and 4 of the commander by setting to Service Mode and adjust to VB1=VB2=VB3=VB4 with 3 and 6.  The highest level of VB1,VB2,VB3,VB4 must be aligned at the same line. Ideal difference level between VB2 and VB3 should be within ± 110mV. 

6. Press [MUTING] → - of the commander to write the data.

DEFLECTION ADJUSTMENT
1. Set to Service Mode.
2. Input PAL color bar.
3. Using the 1 and 4 button, select category GEO (Service Mode).
4. Raise/lower the data using the 3 and 6 buttons.
Select and adjust the following items to obtain optimum image

5. Input 525/60Hz signal.
6. Using the 1 and 4 button select category GEO (Service Mode).
7. Select and adjust the following items to obtain optimum image. Raise/lower the data with the 3 and 6 buttons.

H-TRAPEZOID ADJUSTMENT
1. Receive cross hatch/dot signal.
2. Adjust RV1801 on C6 board to make H-trapezoid distortion best.

A BOARD ADJUSTMENT AFTER IC003
(MEMORY) REPLACEMENT
1. Enter to Service Mode.
2. Press commander buttons 5 and - (Data Initialize), and 2 and - (Data Copy) to initialize the data.
3. Call each item number and check if the respective screen shows the normal picture.
In cases where items are not well adjusted, rectify the items with fine adjustment.
Write the data per each item number ([MUTING] +-).
4. Select item numbers “OPB0” (OP1), “OPB1” (OP2), “OPB2” (OP3), “OPB3” (OP4) and respectively set the bit per model with command buttons 3 and 6.
5. Press commander buttons 8 and - (Test Normal) to return to the data that was set on the shipment from the factory.
(This will also cancel Service Mode.)

PICTURE DISTORTION ADJUSTMENT

Schematic diagram

Voltage list