REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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Showing posts with label NOBLEX. Show all posts
Showing posts with label NOBLEX. Show all posts

Wednesday, 22 January 2020

NOBLEX 4H.B1090 SMPS SCHEMATIC NOBLEX LCD TV SMPS SCHEMATICS

Noblex LCD TV SMPS schematics - Noblex 4H.B1090 SMPS schematic


Noblex 4H.B1090 SMPS schematic – using FAN6961, TEA1530AT, LTV-817, 2SK4100LS(power switching FET)

Noblex LCD TV SMPS schematic – using PC123Y52,L6598DP(High voltage resonant controller), L6562DP(Transition mode PFC controller), MR4010-7101

Monday, 1 April 2019

NOBLEX (TOSHIBA) 32LC837 - 32 INCH - LCD TV – POWER and BACK-LIGHT INVERTER CIRCUIT DIAGRAM [SCHEMATIC]

POWER and BACK-LIGHT INVERTER CIRCUIT DIAGRAM [SCHEMATIC] _ 32LC837  LCD TV.
Used Semiconductors _ T01N60_5N50_OB3309_TEA1733_PC817C_JCS4N60_OB2273AP
  {Universal remote control set-up codes to Noblex  0049 0076 0152} Toshiba: 0018 0025 0039 0044 0045 0075 0101 0119 0128 0141 0143 0145 0165 0195 0227 0247 0369 0379 0460 0642 0658 0713 0810 0813 0814.
SMPS
BACK-LIGHT INVERTER

Saturday, 30 March 2019

HOW TO ENTER SERVICE MODE TO NOBLEX 32LC815H - LCD TV

HOW TO ENTER SERVICE MODE TO NOBLEX 32LC815H - LCD TV


NOBLEX 32LC815H (Argentina) _ Service Mode _ main power supply (SMPS) circuit diagram - Used ICs FAN7602P – L6599DTRP Universal Remote control Set-up codes for Noblex  TVs
SERVICE MODE

* Press and hold the MENU button on Side Controls.
* Keep pressing the MENU button and press the MUTE button on the remote control, and the FACTORY MENU will be displayed.
* Select “DATA” line by pressing ▲/▼  button.
* Press◄► button to adjust data.
* Press MENU button to exit service mode.  The all adjusted data in service mode will be memorized into EEPROM automatically.

SMPS [Power supply] - schematic
PWB-SOLDER SIDE
Universal remote control set-up codes
0049 0076 0152
CLICK ON THE PICTURES TO MAGNIFY

Friday, 29 March 2019

SANYO 29FS51 NOBLEX 29 INCH CTV HOW TO ENTER SERVICE MODE – CIRCUIT DIAGRAM

SANYO 29FS51 NOBLEX 29 Inch CTV HOW TO ENTER SERVICE MODE – Circuit diagram

HOW TO ENTER SERVICE MODE – Power Supply [SMPS] section schematic _ Full Schematic - SANYO 29FS51 NOBLEX 29 Inch CTV
USED ICs _ LA42205-E _ QXXAVC634-N _ QXXAVD111-M
 
SERVICE MODE
Enter the Service Menu
While pressing the MENU button on the television, press the Number Key 2 on the remote control unit.
Service Adjustments:
Press the CHANNEL UP/DOWN button on the remote control handset to select the desired service menu item you want to adjust.
Use the VOLUME + / - button to adjust the data. The + or - button will increase or decrease the data sequentially.
Exit from the Service Menu
Press the MENU button to turn off the Service Menu display.
The data which is set in the service mode is stored into the memory IC automatically.
When IC802 (EEPROM) is replaced, IC201 (CPU) will automatically write the initial reference data into IC802 for basic TV operation.  However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.
SMPS CIRCUIT DIAGRAM
FULL SCHEMATIC
CLICK ON THE PICTURES TO MAGNIFY

Monday, 18 March 2019

HOW TO ENTER SERVICE MODE - NOBLEX 29TC 665 [ARGENTINA] - MEMORY IC REPLACEMENT - UNIVERSAL REMOTE CONTROL SET-UP CODES

HOW TO ENTER SERVICE MODE - NOBLEX 29TC 665 [Argentina] - Memory IC Replacement - Universal Remote Control Set-up Codes



MEMORY IC REPLACEMENT
   This set has an On-screen Service Menu system included in the CPU that allows remote operation for most of the service adjustments.
IC802 [EEPROM] REPLACEMENT
   When IC802 (EEPROM) is replaced, IC801 (CPU) will automatically write the initial reference data into IC802 for basic TV operation.  However, the bus data should be checked and some bus data should be set up before attempting the service adjustments.
Initial Bus Data Setup
Note: When IC802 (EEPROM) is replaced, following Service Menu should be set up for proper TV operation before attempting the service adjustments.
{CLICK ON PICTURES TO ZOOM IN}
TO ENTER SERVICE MENU
While pressing the MENU button on the television, press the Number Key 2 on the remote control unit.
The Service Menu now appears.
Service Adjustments:
  • Press the CHANNEL UP or CHANNEL DOWN button on the remote control handset to select the desired service menu item you want to adjust.
  • Use the VOLUME + or-to adjust the data. The + or -button will increase or decrease the data sequentially.
  • To Exit from the Service Menu; Press the MENU button.
The data, which is set in the service mode, is stored into the memory IC automatically.
   The table shows the initial values, which have been stored in the CPU ROM, and items for the service adjustments.
   When IC802 (EEPROM) is replaced, check the bus data to confirm they are the same as below. The shaded menu should be checked and be set up or readjusted according to the procedures described.
Initial Setup Data marked with an * should be changed from Initial Value Data.
UNIVERSAL REMOTE CONTROL SET-UP CODES
1160 1157 1075 1046 1047

Wednesday, 13 March 2019

NOBLEX 55LDUHDTI AND SANYO LCD TVS: LTDN85XT910XWAM3D, LTDN55K680XWAM3D, LTDN55K680XWAM3D 20 – HOW TO ENTER THE SERVICE MODE, FIRMWARE UPDATE, SMPS SCHEMATIC

Noblex 55LDUHDTI and Sanyo LCD TVs: LTDN85XT910XWAM3D, LTDN55K680XWAM3D, LTDN55K680XWAM3D 20 – how to enter the service mode, firmware update, SMPS schematic


MT5652+MST6M40 – chassis – PAL-M/N, NTSC, ISDB-T system

To enter the Factory OSD Menu
With user’s RC
1. Power TV On
2. Press Menu button and call up User OSD Menu
3. Select Audio > Balance, when Balance is “0”
4. Enter 1>9>6>9 in sequence.
Note: If necessary, re-enter number keys.
5. Factory OSD appears.
6. Press "EXIT" Key on remote control then can leave factory OSD Menu.
Note: MODE “M” is only used for factory production.
The factory menu date varies according to different sources. 
In case changing the factory data by error, you can choose to “Clean ALL”, by which you can resume the default value.
To clear the EEPROM
a. Select the item “Clean All”.
b. Press VOL+ button to clear the EEPROM data.
c. Close the OSD menu after 5 seconds.
d. Restart the TV.
USB Software Upgrading directly
The software can be upgraded by USB Disk.
 First, copy the upgrade_loader.pkg file to USB Disk;.
 Second, make sure there is no other .pkg file in the root directory of USB Disk.
 Insert USB Disk to USB port, and then power on the TV.
 The TV will identify the software and upgrade automatically.
USB upgrading unsuccessfully
If USB upgrading unsuccessfull, then need burning the Nand Flash program file“ *.bin ”to the Nand Flash.
Hardware connecting
Connect the unit to your pc with a USB-to-serial port cable. USB port connects to your PC and serial port to the TV’s RS232 port.
Install the driver
Select the default value, the driver will be installed step by step.
Upgrading with the FlashTool0.6.0.exe
FlashTool is a green program needing no installation. 
After Connect the unit to your pc with a USB-to-serial port cable flashTool0.6.0.exe. Please refer to the following steps to set.
Open “Device Manager” and find which port is connected with the TV. In above picture, COM4 is connected to the TV, so, select “COM4” and if COM6 is connected to the TV, so select “COM6”.
Select the right baud rate according to chip model. For this unit( chip model is MT5652), select 115200.
Click to connect, if connect successfully then button from red turn green.
Click,bounce the following dialog box. Load Bin File: find the upgrading program file, and select it. for example:HIS_5651_m1v2_oceania_secure_nandboot.bin.
Press “Upgrade” button and start upgrading., if update defeat, try again.
If bootloader Tool upgrading is ok, then need renew USB upgrading.refer ( USB Software Upgrading directly)
Network updating
Network updating includes three ways. Auto Upgrade, Network upgrade and USB upgrade.
No matter Auto Upgrade is ON or Off Network Upgrade is validated
 Auto Upgrade -- When set to “on” , system can automatically check whether or not have any new updating file in servers after have connected to the network. Customer can download and update according to the guide.
Network upgrade -- Check the process and it will prompt you to upgrade the software.
SMPS schematic
Products feature

NOBLEX 32LC815H LCD TV HOW TO ENTER SERVICE MODE AND POWER SUPPLY CIRCUIT

NOBLEX 32LC815H LCD TV HOW TO ENTER SERVICE MODE AND POWER SUPPLY CIRCUIT


LCD TV

SERVICE MODE AND POWER SUPPLY CIRCUIT 


Service Menu System
Quick operation is needed to enter Service Mode.
 How to enter the Service Menu
1. Press and hold the MENU button on Side Controls.
2. Keep pressing the MENU button and press the MUTE button on the remote control, and the FACTORY MENU will be displayed.
How to select the service item and adjust data:
On-screen Service Menu System
Quick operation is needed to enter Service Mode.
 Enter the Service Menu
1. Press and hold the MENU button on Side Controls.
2. Keep pressing the MENU button and press the MUTE button on the remote control, and the FACTORY MENU will be displayed.
To adjust data:
1) Select “DATA” line by pressing UP / DOWN  button.
2) Press LEFT /RIGHT button to adjust data.
To exit service mode
Press MENU button to exit service mode.
Note: The all adjusted data in service mode will be memorized into EEPROM automatically.
Setting the Initial data
This adjustment is controlled by the CPU (IC8000) through the IIC Bus Data Line in the chassis, and those adjustment data are memorized the memory IC (IC8001). Therefore, Main board or the memory IC (IC8001) is replaced, these data will be disappeared. Readjust should be made. Initial data is provided in the CPU ROM, when the memory IC (IC8001) is replaced with new one. CPU ROM data is loaded into the memory. Initial data is provided to operating the monitor basically. For operating the monitor quality performance, further adjustment is required following chassis electrical adjustment.
1. Receive good quality signal.
2. Enter the Service Mode.
3. Confirm data value to be the same as the Service Adjustment Data Table. If it is different, change to correct data
4. Exit the Service Mode.
White balance Adjustment
Pattern
White Pattern 100% (in AV mode).
Condition
Picture Mode: STANDARD
Color Temperature: NORMAL
Pre-heating Time: More than 10 minutes
Adjustment
1. Enter the Service Mode.
2. Select "Source ALL" by pressing UP/DOWN button, and select "Properties White" by pressing LEFT/RIGHT button.
3. Set R,G,B value to “FF” by pressing NUMERIC buttons.
To adjust Red : Press 1 (data value up) and 4 (data value down).
To adjust Green : Press 2 (data value up) and 5 (data value down).
To adjust Blue : Press 3 (data value up) and 6 (data value down).
4. Decide one item in three items to a fixed value (For example, let R be fixed value), select item of other 2 colors (Example, G or B), and adjust to produce a normal black and white picture in highlight areas.
(Note: At this time, Adjust the other 2 colors data less than fixed data.)
5. Exit the Service Mode.
POWER SUPPLY CIRCUIT 
POWER BOARD LAYOUT 
CLICK ON THE IMAGES TO ZOOM IN

NOBLEX 29TC656F CRT TV SERVICE MODE AND SCHEMATIC DIAGRAM

NOBLEX 29TC656F CRT TV SERVICE MODE AND SCHEMATIC DIAGRAM


CRT TV

SERVICE MODE AND SCHEMATIC DIAGRAM 


Enter Factory Mode:
Simply press the “SERVICE” key on the factory remote handset.
Press
“ 1,2,3, 5,6,7,8,9,0 NOTEBOOK,CAPS, DISPLAY ,SLEEP, CALENDAR ,COLOR/INS, FAVORITE,RECALL” , you can switch in the sub-menus of “ FAC01~FAC18” in turns.
Press “ P+”“ P-” to choose the items.
Press“ V+”“ V-” to adjust the data.
Press “ OK” and “ P+”“ P-” to switch in the sub-menus of “ FAC19-FAC23” .
Exit Factory Mode:
Press the “SERVICE” key on the factory remote handset. All changes in factory data will be saved in EEPROM automatically.
Aging Mode — Be used for aging before adjustment in Factory Mode.
Vertical doesn’t Work — Be used for Screen & Focus voltage adjustment. In Factory Mode, press “ TV/AV” to enter and exit.
White balance adjustment Mode — Be used for White balance adjustment. In Factory Mode, press“ BUS OFF” to enter and exit.
Default Value OK mode — Be used for default value setting before TV leaves Factory. In Factory Mode, press “S. EFFECT” to enter default value. “Wait” will be displayed in screen, when it is finished, “OK” will be displayed. It will exit factory mode automatically.
Note: Now press “SERVICE” cannot enter factory mode, you have to take the following steps to enter:
1. Setting Volume to Zero.
2. Press “V-” in cabinet and Press “Display” in RC simultaneously
Adjustment Way
1. B
+ Adjustment:
Apply Philips Test pattern signal in normal status, adjusting VR821 to make B
+= 130V± 0.5V.
2. RF AGC adjustment:
Observe monitor the collector waveform of Q101 with the probe of Oscilloscope. Select channel 2 (>70dB) from the antenna input. Enter D-mode, select menu6 to adjust RFAGC item until the monitor peak value to 0.8Vp-p.
3. Sound Amplifier Adjustment:
1) Apply 45.75 IF signal which is >60dB from P1101
2) Adjusting T1101 to make the voltage of Pin 15 in IC1101 is 2.5+0.05V.
4. Screen & Focus voltage adjustment:
1) Apply pattern signal in normal status, enter D-mode, press “TV/AV” button to turn off the vertical output. (Note: The default value of RC/GC/BC is 80, and GD/BD is 40)
2) Adjust the SCRREEN switch on the flyback transformer to make a horizontal shining line just visible on the screen.
3) Turn on the vertical output, adjust the “FOCUS” on the flyback transformer to obtain the optimum focus.
5. White balance adjustment (NORMAL)
1) Apply Black and White Signal in normal status, enter into Factory Mode and select Menu 1.
2) Using analyzer to test the black signal part, adjust RCUT, GCUT, BCUT to make X=284, Y=299.
3) Using analyzer to test the white signal part, adjust BDRV, GDRV to make X=284, Y=299.
4) Adjusting Brightness and Contrast from Min to Max, repeat step 2)~3) to make X=284, Y=299.
Note: M134 chassis can adjust white balance automatically. In factory mode, press “I2C BUS” to enter in. The white balance in the other two colors temperature is Warm (296, 296), Cool (279, 265).
6. Adjustment of Sub-brightness:
1) Apply the Grey-scale/Color bar (NTSC signal) to the AV input, in normal status.
2) Enter into Factory Mode and select Menu 5, select BRTC to adjust the sub-brightness, until that the 2nd dark bar of 8 level Grey scale just can be seen.
7. Picture geometric adjustment:
1) Apply the Philips standard testing pattern in normal status, then enter menu 3, adjusting the following data to get the min-distortion.
HPOS5/6( Horizontal Center) PARA5/6 ( Level) TRAP5/6 ( Trapezia)
HSIZE5/6( Horizontal Size) CNRT5/6 ( Top) CNRB5/6 ( Bottom)
2) Apply the Philips standard testing pattern in normal status, then enter menu 3, adjusting the following data to get the min-distortion.
HIGH5/6 (Height) VP50/60( Vertical Center)
VLIN5/6( Linearity) VSC5/6( Vertical-S Correction)
8. BTSC/SAP Function checking: It needn’t to adjust the BTSC/SAP, but you have to check where it does work.
SCHEMATIC DIAGRAM 
CLICK ON THE IMAGES TO ZOOM IN

NOBLEX 21TC647 - 29TC649 CRT TV SERVICE MODE AND ADJUSTMENTS

NOBLEX 21TC647 - 29TC649 CRT TV SERVICE MODE AND ADJUSTMENTS


 CRT TV

SERVICE MODE AND ADJUSTMENTS 


Entering to Service Mode
1. Press and hold the MENU button on the TV set and press the 2 button on the remote control handset. Following setting items appears on the screen.
2. Select item by pressing the CHANNEL DOWN (Item No. UP) or CHANNEL UP (Item No. DOWN) button on the remote control handset.
3. Adjust data value by pressing the VOLUME + or VOLUME - button on the remote control handset.
To return to normal TV mode, press the MENU button on the TV set or remote control handset.
[H-P] HORIZONTAL CENTRE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to normal.
(3) Select [H-P] in the service mode.
(4) Change value to be optimum horizontal centre position.
(5) Exit from the service mode.
[V-P] VERTICAL CENTRE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to maximum.
(3) Select [V-P] in the service mode.
(4) Change value to be optimum vertical centre position.
(5) Exit from the service mode.
[V-S] VERTICAL SIZE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to maximum.
(3) Select [V-S] in the service mode.
(4) Change value to be optimum vertical size.
(5) Exit from the service mode.
[OSD] OSD POSITION
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to normal.
(3) Select [OSD] in the service mode.
(4) Change value to be proper OSD position.
(5) Exit from the service mode.
[AGC] AGC
NOTE: Do not attempt this adjustment with weak signal.
(1) Tune the receiver to most clearest (or strongest) VHF station in your area. Set the brightness and contrast controls to maximum. Set the colour control to minimum.
(2) Select [AGC] in the service mode.
(3) Change value until the snow noise just disappears.
(4) Exit from the service mode.
[VCO] AFT
(1) Connect DC meter to TP-D and the ground.
(2) Tune the receiver to the clearest station.
(3) Disconnect RF input. (Disconnect antenna plug from the antenna socket.)
(4) Select same channel. (If you have selected channel 03 in step 2, press “0” button next “3” button on the remote control to select channel 03.)
(5) Connect antenna plug to the antenna socket.
(6) Select [VCO] in the service mode.
(7) Change value until the voltage (on TP-D) to be 4.5±0.2V at OK point.
GREY SCALE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and colour to normal, contrast to maximum.
(3) Enter to the service mode.
(4) Set each value of Item-18 RBI, 19 GBI, 20 BBI mode to 00. Set each value of Item-21 RD, 22 BD mode to 64.
(5) Select Item-24 mode to be one horizontal scanning line and turn the screen volume on the FBT to obtain just visible one coloured line.
(6) Press the 1 (Red Bias +), 4 (Red Bias -), 2 (Green Bias +), 5 (Green Bias -), 3 (Blue Bias +) or 6 (Blue Bias -) button to adjust the brightness of each colour until a dim white line produced. Please see the control button allocations in this mode.
(7) Select Item-23 DRV mode to enter the white balance adjusting mode.
(8) Press the 7 (Red Drive +), CHANNEL RECALL (Red Drive -), 8 (Blue Drive +) or 0 (Blue Drive -) button alternately to produce normal black and white picture.
(9) Exit from the service mode.
(10) Check for proper grey scale tracking at all brightness levels.
Entering to MTS Adjustment Service Mode
1. Press and hold the MENU button on the TV set and press the 3 button on the remote control handset. Following setting items appears on the screen.
2. Select item by pressing the CHANNEL DOWN (Item No. UP) or CHANNEL UP (Item No. DOWN) button on the remote control handset.
3. Adjust data value by pressing the VOLUME + or VOLUME - button on the remote control handset.
To return to normal TV mode, press the MENU button on the TV set or remote control handset.
SOUND LEVEL ADJUSTMENT
1. Connect a signal generator to TP-301(- side of C3407) on the Main Board and the ground. Signal output=300Hz, 150mVrms.
2. Connect a DC Volt-Meter to TP-317( + side of C3437) and the ground.
3. Ground TP-20(pin-45 of IC201) with the jumper lead.
4. Switch the TV set on. Press and hold the MENU button on the TV set, and press “3” button on the remote control transmitter to enter to the service mode.
5. Adjust voltage to become DC 500mVrms±10mVrms by pressing the VOLUME(+/-) button on the remote control or TV set.
6. To exit from the service mode, press the MENU button.
STEREO VCO ADJUSTMENT
1. Connect a frequency counter to TP-317( + side of C3437) and the ground.
2. Ground TP-20(pin-45 of IC201) with the jumper lead.
3. Switch the TV set on. Press and hold the MENU button on the TV set, and press “3” button on the remote control transmitter to enter the service mode.
4. Select “STEREO VCO” by pressing the CHANNEL UP/DOWN button on the remote control or TV set.
5. Adjust the frequency to become 15.625KHz ± 0.1KHz by pressing the VOLUME (+/-) button on the remote control or TV set.
6. To exit from the service mode, press the MENU button.
MTS FILTER ADJUSTMENT
1. Connect a signal generator to TP-301(- side of C3407) and the ground. Signal output=15.734KHz, 100mVrms.
2. Connect a DC Volt-Meter to TP-317( + side of C3437) and the ground.
3. Ground TP-20(pin-45 of IC201) with the jumper lead.
4. Switch the TV set on. Press and hold the MENU button on the TV set, and press “3” button on the remote control transmitter to enter the service mode.
5. Select “FILTER” by pressing the CHANNEL UP/DOWN button on the remote control or TV set.
6. Adjust voltage to become minimum reading by pressing the VOLUME(+ -) button on the remote control or TV set.
7. To exit from the service mode, press the MENU button.
STEREO SEPARATION ADJUSTMENT
1. Connect an oscilloscope:
Probe-A to TP-317(+ side of C3437) and the ground.
Probe-B to TP-318 (+ side of C3438) and the ground.
2. Switch the TV set on, and receive the multi sound program.
3. Press and hold the MENU button on the TV set, and press “3” button on the remote control transmitter to enter to the service mode.
4. Select “LOW SEPARATION” by pressing the CHANNEL UP/DOWN button on the remote control or TV set.
5. Adjust level of 300Hz at TP-317 (+ side of C3437) to become minimum level by pressing the VOLUME(+/ -) button on the remote control or TV set.
6. Select “HI SEPARATION” by pressing the CHANNEL UP/DOWN button on the remote control or TV set.
7. Adjust level of 4KHz at TP-318 (+ side of C3438) to become minimum level by pressing the VOLUME (+/-) button on the remote control or TV set.
8. To exit from the service mode, press the MENU button.
SAP VCO ADJUSTMENT
1. Connect a frequency counter to TP-317(+ side of C3437) and the ground.
2. Ground TP-20 (pin-45 of IC201) with the jumper lead.
3. Ground TP-316(+ side of C3411) with the jumper lead through 1M Ω resistor.
4. Switch the TV set on.
5. Press and hold the MENU button on the TV set, and press “3” button on the remote control transmitter to enter to the service mode.
6. Select “SAP VCO” by pressing the CHANNEL UP/DOWN button on the remote control or TV set.
7. Adjust frequency of the counter to become 78.125KHz ±0.5KHz by pressing the VOLUME (+/-) button on the remote control or TV set.
8. To exit from the service mode, press the MENU button.
FINE TUNING
This adjustment is used to do a fine tuning of the channels with poor reception after they have been stored by the automatic tuning. This function is available for one channel only and the fine-tuned channel is memorized into IC802 (EEPROM).
1. Press and hold the MENU button on the TV set and press the 4 or MENU button on the remote control handset to enter to the service mode.
2. Press and hold the VOLUME + or VOLUME - button on the remote control handset or TV set to make fine tuning adjustment. Press and hold the VOLUME + button for higher frequency tuning, and press and hold the VOLUME or lower frequency tuning.

To return to normal TV mode, press the MENU button on the TV set or remote control handset. (Or will automatically return to normal TV mode after 5 seconds.)
FOCUS ADJUSTMENT
(1) Receive the monochrome circular pattern.
(2) Set the brightness to normal and contrast to maximum.
(3) Adjust the focus control on the F.B.T. for the best focus on the screen centre.
HORIZ. WIDTH AND HIGH VOLTAGE CHECK 
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to maximum.
(3) If the picture is too wide, or narrow, cut or short the “AJ1 ” on the main unit. When AJ1 is shorted, the horizontal width increase. When AJ1 is cut, the horizontal width decrease.
OL
(4) Connect a high voltage probe to anode lead of the picture tube.
(5) The high voltage must be 14”=21KV ± 1KV / 20”,21”=25KV ± 1KV / 29”=26.5KV ± 1KV and less than 14”=25KV / 20”,21”=27.5KV / 29”=29.5KV at 0 beam current (Brightnees and contrast minimum setting).