Friday, 27 December 2019

HTB5550G Philips Home Theater BD Player disassembly, software update, power board schematic

Software upgrade
Build a folder name as UPG under root menu of USB device.
Copy the HTB5580.bin file(upgrade file) to the root menu of USB device.
Connect the USB device to HTS ,
Power on DUT,enter into HOME UI.
Enter into Setup menu select Advance >>Software upgrade>>USB. If the upgrade SW was found, it will prompt start upgrade SW, press OK select Start.
Don’t power off DUT .DUT will restart after SW upgrade completed.
Caution: The set must not be power off during upgrading, Otherwise the Main board will be damaged entirely.
Software version check
Power on DUT, enter into home ui,
Select set up >> advance >> version information
The main software is System SW,MCU version is Subsystem SW.
Restore DUT
Power on DUT,enter into HOME UI
Select set up >> advance >> Restore default settings
Disassembly procedure.
Open the top cover. Remove 4 screws on the back panel, dismantle the left and right baffle, then open the top cover.
Dismantle the loader. Open the CD tray and dismantle the CD door. Disconnect the connectors on the main board. Remove 2 screws beside the loader.
Dismantle the front panel.Release the WI-FI module from the panel. Disconnect all the connectors.
Release 4 buckles on the left,right and bottom sides.
Dismantle the front control board. Remove 4 screws on the board. Loosen the board and disconnect
2 connectors on the inner side of the board, then pull out the board.
Dismantle the power board. Remove 4 screws and 1 plane interpolation on the board.

Dismantle the amplifier board. Remove 2 screws on the board and 1 screw on the back panel.
Dismantle the main board. Remove 2 screws on the board and 3 screws on the back panel.
 Mechanical and Dismantling
Open the top cover. Remove 2 screws on the back panel. then open the cover.
Dismantle the front panel. Disconnect all the connectors on the boards. Release 4 buckles on the left, right and bottom sides.
how to dismantle the wireless box
Dismantle the power board. Remove 3 screws on the board and 2 screws on the back panel.
Mechanical and Dismantling Instructions
 Dismantle the power board. Remove 3 screws on the board and 2 screws on the back panel.
Dismantle the main board. Remove 2 screws on the board and 1 screw on the back panel.
Power board schematic
Power board schematic for wireless box

Saturday, 14 December 2019

How to disassemble Olympus Stylus 1030 camera


Olympus Stylus 1030 SW Camera Disassembly procedure.

Remove the exterior casing as explained below to expose the camera's interior components, and then follow the further removal instructions.

Camera Casing.

  Carefully pry off the lens frame using a plastic opening tool. Remove front panel's top three screws (type T6) using a 1.5 mm screwdriver.
Remove the top sided three screws, using a #00 Philips Head Screwdriver.Either using tweezers or gently holding the front panel by the right side, carefully remove it by pivoting it outwards.The location of the pivoting point is above the lens and is shown by the circle markup within the rectangle of the last image.

Remove loose washer plate from T6 screw hole using tweezers.
Slowly peel off the seal from beneath the front plate.
See photo for the locations of the tape strips beneath this seal.
Using a #00 Philips Head
Screwdriver, remove two screws located on a left side of the camera.
Using a #00 Philips Head Screwdriver, remove two black color speaker screws.
Lift out the speaker plate as it comes off after you unscrew the holding screws from previous step.
Open up the multi connector cover.
The Multi connector compartment is used to connect the AV cable and play pictures on a TV and it has a waterproof cover.
The multi connector/speaker side panel can be detached by sliding it off the panel itself.
Using a #00 Philips Head Screwdriver, remove the screw located below the multi connector cover.
Using a #00 Philips Head Screwdriver, remove two screws located at the bottom of the camera.
Using a #00 Philips Head Screwdriver, remove the screw inside the Battery/card compartment cover.
To expose the screw located inside the battery/card compartment, you will first have to open the compartment cover.
Remove two screws (PH00) from the interior front cover
Carefully detach the interior front plate by rotating it outwards until it is freed from the back panel
Lift out the shutter and power buttons and their retaining plate.
Open the A/V port door
Unscrew four corner screws that hold the front and back halves of the casing together using the #00 Philips Head Screwdriver
Use a plastic spudger or fingernail to release the top holding clip
Slowly unfold the front and back halves of the camera to expose the electrical ribbons.
Using plastic opening tool and tweezers gently pivot the black plastic strip up locking the ribbon in place.
Once the black strip releases the ribbon gently unattached the wide copper ribbon off the computer chip by using your thumb or tweezers.
Once all 3 ribbons are disconnected, the front and back halves can be separated.

Tuesday, 12 November 2019

Daewoo 42 and 46 inch LCD TV – service mode and adjustments, troubleshooting procedure - CHASSIS : SL-701T


Daewoo DLT-42U1GMB, DLT-42G1LTBD, DLT-46U1UMB, DLT-46U1STB - LCD TV - How to enter the service mode, Troubleshooting.
SERVICE MODE
Using the Service Remote controller, you can enter service mode directly. [SERVICE REMOCON : R-34SVC(S/N:48B3034SVC)]
EEPROM initial DATA
Description of SERVICE MODE ITEM
A. S1(1): Heat-Run Key
B. S2(2): Gumi Channel Map Write
C. S3(3): Volume Test.  => This key can check sound
D. S4(4): EDIE WRITE => Using this key, you can update EDID data below method.
1. Connect two jumpers (P502) vertically.
2. Press "S4" key and then, TV set display "EDID WRITE OK" upper left of screen.
3. If EDID writing is fail, TV set display "EDID Write Error" upper left of screen.
4. After EDID write, remove jumper.
E. S5(5): PANEL TEST. => Using this key, you can test problem of PANEL, as confirm white pattern, red pattern,blue pattern, green pattern.
F. S6(6): PICTURE TEST => Using this key, you can test brightness, contrast and color.
G. S7(7): DEMPOL CHANNEL MAP WRITE
H. S8(8): EEPROM Erase and White Balance adjustment. => Using this key, you can erase EEPROM data and adjust White balance.
I. S9(9): Device control. => This key only use for R&D.
J. S10(10): Option key. => Using this key, you can adjust SSC, Dimming, Panel Type, Control key and etc.
K. S11(11): I2C STOP key. => This key only use for R&D.
L. S12(SLEEP): Shipping key. => Using this key, you can set up at shipping mode.
Trouble Shooting
When “No signal” in RF, SCART1,SCART2,AV3
1) First check if other inputs are working. =>If other inputs are not working, replace MAIN PCB.
2) Checking waveform with Color Bar Pattern (Using the oscilloscope).
-Main TP (RF): CC613 near IC601 (Top).
-Main TP(SCART1): LC019 near JP208 (Top).
-Main TP(SCART2): LC213 near JP207 (Top).
-Main TP(AV3): RC055 near P240. => If all TP signal does not appear, replace MAIN PCB.
When “No Signal” in Y/C signal (S-Video)
1) First check if other inputs are working. =>If other inputs are not working, replace MAIN PCB
2) Checking waveform with Color Bar Pattern (Using the oscilloscope).
-Main TP(Y signal): RC053 near P240.
-Main TP(C signal): RC050 near P240.
=> If all TP signal does not appear, replace MAIN PCB.
When “No Signal” in Y/Pb/Pr signal (Component)
1) First check if other inputs are working. =>If other inputs are not working, replace MAIN PCB.
2) Checking waveforms with Color Bar Pattern (Using the oscilloscope).
-Main TP (COMP_Y): RC233 near JP211 (Top).
-Main TP (COMP_Pb): RC234 near JP211 (Top).
-Main TP (COMP1_Pr): RC235 near JP211 (Top).
=> If all TP signal does not appear, replace MAIN PCB.
When “No Signal” in PC
1) First check if other inputs are working. =>If other inputs are not working, replace MAIN PCB.
2) Checking waveforms with Color Bar Pattern (Using the oscilloscope).
-Main TP(R signal): RC629 near IC601(Top).
-Main TP(G signal): RC627 near IC601 (Top).
-Main TP(B signal): RC628 near IC601 (Top).
-Main TP(H-Sync): RC630 near IC601 (Top), -Main TP(V-Sync): RC640 near IC601 (Top).
=> If all TP signal does not appear, replace MAIN PCB.
When “No Signal” in HDMI
1) First check if other inputs are working. =>If other inputs are not working, replace MAIN PCB.
2) Checking waveform with Color Bar Pattern (Using the oscilloscope).
-Main TP (RC672, RC671, RC670, RC668, RC667, RC666, RC665) near IC601. => If all TP signal does not appear, replace MAIN PCB.
When Key does not operate.
42G1 : replace the key PCB.
42/46 U1 : replace the touch button.
Trouble diagnosing or repairing.
A. Trouble diagnosing and repairing of set mean find out which PCBs or blocks are not working and replace them with new PCBs. Repairing the broken PCBs are not necessary. Keep the broken PCBs and return them to service center or R&D center.
B. This TROUBLE DIAGNOSIS list only contains representative and simple PCB trouble diagnosis and Module Exchange method. Therefore, if you find Sets that are difficult to diagnosis or to repair, contact R&D center.
C. Basic TROUBLE DIAGNOSIS process.
D. Required equipment for trouble diagnosis [Digital Multimeter]
User Mode: measure DC VOLTAGE, DIODE VOLTAGE, SHORT/OPEN TEST
-Screwdriver or electric screwdriver, plastic adjusting tool
-Oscilloscope (for detailed examination only)
E. Each BLOCK operations explained here, but these are for reference only and utilizing them to repair PCBs is not necessary.
F. Before replacing PCBs, you MUST turn off the AC switch.
G. After replacing POWER, MAIN and SUB PCB, extra adjustment might be needed.
H. After the set is repaired, leave BACK COVER open for followings. Run HEATRUN for at least 30 minutes by displaying TEST PATTERN (Full White) of SERVICE MODE.
Check the screen conditions and basic functions.(Remote Controller operation etc.).
J. After BACK COVER is closed, redo HEATRUN for at least one hour with Full White input using TEST PATTERN of SERVICE MODE. Check the screen conditions and basic functions.

Tuesday, 5 November 2019

Panasonic SA PM86 DVD stereo system how to enter the service mode, firmware update, power amp and power supply schematic, system reset


Panasonic SA-PM86DGCS, SA-PM86DEE DVD Stereo System
This model’s mechanism unit is DLS6
RMS Output Power THD 10%  80 W per channel (3 Ω), 1 kHz
Total RMS Dolby Digital Mode  80 W per channel (3 Ω), 1 kHz
PMPO Output Power  1800 W
Speakers: SB-PM86EG-K
Video system PAL625/50, PAL525/60, NTSC
Power consumption 95 W AC 230 V, 50 Hz (EE) - AC 220 to 240 V, 50/60 Hz (GCS)
Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C2207, C2210, C2211, C2212, C2742, C5105, C5106, C5916, C5917,
C5938, C5562, C5954, C5979 and C5993 through a 10Ω, 1W resistor to ground.  DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid over current.
Current consumption at AC 220 - 240 V, at 50/60 Hz in NO SIGNAL mode (at volume min) should be ~500 mA. (GCS)
Current consumption at AC 230 V 50 Hz in NO SIGNAL mode (at volume min) should be ~500 mA. (EE)
Protection
The protection circuitry may have operated if either of the following conditions are noticed:
• No sound is heard when the power is turned on.
• Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are "shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
Do not disassemble the pickup unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pickup unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pickup lens for a long time
Service Mode
The service modes can be activated by pressing various button combination on the main unit and remote control unit.
Below is the summary for the various modes for checking
An error code will be canceled if a power supply is turned OFF.
1: CPPM is the copy guard function beforehand written in the disk for protection of copyrights.
2: CEC is the consumer electronic control used for high-level user control of HDMI-connected devices.
3: HDCP is the specification developed to control digital audio & video contents transmission for DVI or HDMI connections
By pressing various button combinations on the main unit and remote control unit, you can activate the various service modes for checking.
Due to the limitations of the no. characters that can be shown on the FL Display, the “FL Display” button on the remote control unit can be used to show the two display pages. (Display 1 / Display 2).
Optical Pick-up Self-Diagnosis
The optical pickup self-diagnosis function and tilt adjustment check function have been included in this unit. When repairing, use the following procedure for effective self-diagnosis and tilt adjustment. Be sure to use the self-diagnosis function before replacing the optical pickup when "NO DISC" is displayed. As a guideline, you should replace the optical pickup when the value of the laser drive current is more than the specified value.
[Press the power button to turn on the power, and check the value within three minutes before the unit warms up. (Otherwise, the result will be incorrect.)]
DVD Self Diagnostic Function-Error Code
Sales Demonstration Lock Function
This function prevents discs from being lost when the unit is used for sales demonstrations by disabling the disc eject function.
"LOCKED" is displayed on the unit, and ordinary operation is disabled.
Prohibiting removal of disc
1. Select the DVD/CD function.
2. At POWER ON condition, press and hold down the STOP button and the power button on the main unit for at least three seconds. (The message, “LOCKED” appears when the function is activated.)
[OPEN/CLOSE button is invalid and the main unit displays “LOCKED” while the lock function mode is entered]
Prohibiting operation of selector and disc
1. Select the DVD/CD function.
2. At POWER ON condition, press and hold down the PLAY button and the power button on the main unit for at least three seconds. (The message, “LOCKED” appears when the function is activated.)
The lock can be cancelled by the same procedure as used in setting. ("UNLOCKED" is displayed on cancellation. Disconnecting the power cable from power outlet does not cancel the lock.)
Recovery after the DVD player is repaired
• When the FLASH ROM IC or DVD Module P.C.B. is replaced, carry out the recovery processing to optimize the drive.  Playback the recovery disk to process the recovery automatically.
• Recovery disc (Product number: RFKZD03R005) [SPG]
• Performing recovery process
1. Load the recovery disc RFKZD03R005 on to the player and run it.
2. Recovery is performed automatically. When it is finished, a message appears on the screen.
3. Remove the recovery disc.
4. Turn off the power.
5. Initialize the player.
Firmware version-up of the DVD player
• The firmware of the DVD player may be renewed to improve the quality including operability and playability to the substandard discs. Processing to optimize the drive.
The recovery disc has also firmware version-up.
• After version-up, recovery processing is executed automatically.
• Part number of the recovery disc for version-up will be noticed when it is supplied.
• Updating firmware
1. Load the recovery disc on to the player and run it.
2. Firmware version of the player is automatically checked. Appropriate message appears whenever necessary.
3. Using remote controller´s cursor key, select whether version updating is to be done or not. (Selection of Yes/No)
4. a. If Yes is selected, version updating is performed.
b. If No is selected, only recovery is performed.
5. a. When updating is finished, remove the disc according to the message appearing on the screen.
b. Remove the disc according to the message appearing on the screen.
6. Turn off the power.
 [If the AC power supply is shut out during version-up due to a power failure, the version-up is improperly carried out.  In such a case, replace the FLASH ROM IC and carry out the version-up again.]
DVD Module P.C.B. Reset
• When after replacing FLASH ROM IC or DVD Module P.C.B., FL displays error code “ DVD F897”. This means the unit is not initialized properly and the following process needs to be carry out.
• Procedures:
1. Press _>10 on remote control while pressing “STOP” button on main unit. (To enter into initialization)
2. FL display show “INIT”
3. While still pressing “STOP” button on main unit, press “OK” on remote control. (To reset the unit)
4. FL will display “RESET” before FL display will change to TOC reading again.
5. Power off unit. Unplug the AC cord.
6. Power on the unit. It should be no problem. If problem persist check on the DVD Module P.C.B. or FLASH ROM IC.

Power amplifier and main power schematic


Power clamp circuit
Power Transformer circuit

Tuesday, 29 October 2019

LA15S51B Samsung TFT-LCD TV – Service mode and adjustments, Power and inverter schematic


Alignment Instruction
Do not attempt to connect or disconnect any wire while the TV is turned on.
Make sure that the power cord is disconnected before replacing any parts.
To protect against shock hazard, use an isolation transform.
Entering Factory Mode.
To enter “Service Mode” Press the remote control keys in this sequence:
Default data values
Calibration
RF, VIDEO,
S-VIDEO > Factory mode > Calibration > VCTi > Enter.
Component:  adjust 16 gray pattern of 480p.
Based on master device [Video signal generator MSPG-925F], after adjusting to 16 grey pattern [model: 212, pattern:17]
Factory mode > calibration > component > enter.
PC: adjust in VGA mode
Execute auto-adjustment in cross hatch: Model 10, Pattern 25.
After adjusting 16 grey pattern [Model 10, Pattern 17].
Factory mode > calibration > PC > enter
Value variation can be +/-- 10~20.
Power Supply, Inverter Board Schematic

Tuesday, 22 October 2019

42HFL5784D Philips 42” LCD TV USA – service mode, software upgrade, SMPS and Backlight inverter schematic


Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to perform these adjustments only after all repairs and replacements have been completed.
Also, do not attempt these adjustments unless the proper equipment is available.
Equipment Required
1. Setup remote control
2. Color Analyzer,
CA-310 (KONICA MINOLTA Luminance meter) or
measuring instrument as good as CA-310.
To set up the service mode
1. Turn the power on.
2. Wait for the TV to go to Live mode.
3. Press [RC5 GUEST], [0], [6], [2], [5], [9], [6] and [RECALL/INFO] on the setup remote control in this order. The following screen will appear.
Purity Check Mode
This mode cycles through full-screen displays of red, green, blue, and white to check for non-active pixels.
1. Enter the service mode.
2. Each time the [7] button on the setup remote control is pressed, the display changes as shown below.
3. To cancel or to exit from the Purity Check Mode, press [BACK/PP] button.
White Balance Adjustment
White Balance Adjustment should be performed when replacing the LCD Panel or Digital Main CBA.
Symptom of Misadjustment: White becomes bluish or reddish.
Operate the unit for more than 60 minutes.
2. Enter the service mode.
3. Press [TV VOL -] button three times on the setup remote control to select “Drive setting” mode. “Drive-” appears in the screen.
4. Set the color analyzer at the CHROMA mode and zero point calibration. Bring the optical receptor pointing at the center of the LCD-Panel.
[The optical receptor must be set perpendicularly to the LCD Panel surface.]
5. Press [3] button to select the “HDB” for High Drive Blue adjustment. (“HDB” appears in the screen.)
6. Press [HOME/MENU] button. The internal Raster signal appears in the screen. (“Internal (Single)” appears in the upper right of the screen as shown below.)
7. Press [P + or -] buttons to adjust the color temperature becomes 12000°K (x= 0.272 / y= 0.278 ±0.005).
8. Press [1] button to select the “HDR” for High Drive Red adjustment (“HDR” appears in the screen.) and press [P + or -] buttons to adjust the color temperature.
9. If necessary, adjust the “HDB” or “HDR” again.
10. Press [9] button to select the “LDB” for Low Drive Blue adjustment (“LDB” appears in the screen.) and press [P + or -] buttons to adjust the color temperature.
11. Press [7] button to select the “LDR” for Low Drive Red adjustment (“LDR” appears in the screen.) and press [P + or -] buttons to adjust the color temperature.
12. Press [8] button to select the “LDG” for Low Drive Green adjustment (“LDG” appears in the screen.) and press [P + or -] buttons to adjust the color temperature.
13. If necessary, adjust the “LDB”, “LDR” or “LDG” again.
14. Press [TV VOL -] button to shift to the “Debugging Message” mode.
If there is no message under “[WB]” section, this adjustment completes.
If “Drive settings are NG. Retry.” is displayed, repeat above steps from 5. to 13. Then check “Debugging Message” again. If “Drive settings are NG. Retry.” is displayed, replace the LCD Panel or Digital Main CBA.
15. To cancel or to exit from the White Balance Adjustment, press [BACK/PP] button.
To initialize the TV
Initialization is to place the set in a new out of box condition. The customer will be prompted to select a language and program channels after the set has been initialized.
To put the program back at the factory-default, initialize the LCD TV using the following procedure.
[Disconnect any device from the USB Port before you conduct on this procedure.]
1. Turn the power on.
2. Enter the service mode.
3. Press [RC5 GUEST] button on the setup remote control.
4. Press [RECALL/INFO] button to proceed with the self check mode.
5. Make sure to confirm the “INITIALIZED : OK” appear in the green screen.
6. Unplug the AC Cord and plug it back on again.
Note: To cancel the service mode, press [Power ] button on the setup remote control.
Firmware renewal
Upgrading of the TV software via IP, USB or RF. It also allows the configuration of the Auto Update feature to enable the TV to be automatically upgraded.
Note: Auto Update feature is only available with IP or RF upgrade.
Source: “IP”, “USB”, “RF” – This function allows you to select the Source from which the TV Upgrade data will be received.
Note: The USB source is bidirectional (TV can read from the USB or write to the USB), but IP and RF sources are read only.
Like the TV Clone function, the RF option requires a GNA installed in the property head end to broadcast the data to the TVs. For more information, contact your P&F sales representative.
Upgrade Type: “All”, “Software”, “Assets”, “Clone”, “P:I Key”
C This section allows you to select the type of software to be upgraded to the TV. (All 5 upgrade types are available if you select USB as source)
• If set to ALL, then all elements (Software, Assets, Clone and P:I Keys) will be upgraded, based on their version and the version check setting.
• If set to Software, the Stand-By MCU, SPI MCU and the SOC will be upgraded.
• If set to Assets, the slideshow graphic assets will be upgraded.
• If set to Clone, Setup menu settings and channel map elements will be upgraded.
• If set to P:I Key, the TV will attempt to switch mode to FTG or PPV, provided that the correct key for its serial number is present.
Of these, only the Assets and Clone types are bidirectional. The All, Software, and P:I Key types are read only. If either Assets or Clone is selected, an additional menu item, Direction, appears.
Direction:
• “To TV” (reads data from the USB, copies it to the TV)
• “From TV” (reads data from the TV, copies it to the USB
Version Check: “On”, “Off” - If set to Yes, this feature causes the TV to perform a version check of the TV upgrade software to ensure that only a newer version will be installed.
Start - This function will initiate the TV upgrading process.
Auto Update: “4 Hour”, “1 Hour”, “30 Min”, “10 Min” - When TV goes into standby, Auto Update will automatically check for new TV upgrades and upgrade the TV software and/or clone data after 4
hour, 1 hour, 30 min or 10 min if newer versions are found. Like all previous RF download functions, this too requires a GNA to be installed in the property head end.
RF Channel Number.
Indicates major. Minor channel where upgrading data is available.
Hotel TV mode
Capturing a Clonefile (TV to USB)
• All TV Setup menu settings and the TV channel map will be copied from the TV to the attached USB storage device.
• Any existing clone data on the USB storage device will be overwritten.
• All the key input and the shutdown timers will be invalid during the cloning process.
• Audio and Video will be muted during the cloning process.
How to capture a clone file from the TV to a USB storage device
1. Insert a USB storage device into the TV USB port. (It must have sufficient free space to hold a TV clone file - about 5 MB.)
2. Press the [RC5 SETUP] and [HOME/MENU] button on the setup remote control to enter the setup menu.
3. Scroll down to and select “Upgrades”.
4. Select “Source” and select “USB” then press the [OK] button.
5. Select “Type” and select “Clone” then press the [OK] button.
6. Select “Direction” and select “from TV” then press the [OK] button.
7. Select “Execute” and select “Start” then press the [OK] button.
8. After the successful completion, “Upgrade Completed! Press OK to continue” message appears on screen.
[Upon successful completion at Step 8, make sure to press the [OK] button once. If [OK] button is pressed twice, the cloning process will restart.]
Installing a Clonefile (USB to TV)
• All TV Setup menu settings and the TV channel map will be copied from the USB storage device to the TV.
• All the key input and shutdown timers will be invalid during the cloning process.
• Audio and Video will be muted during the cloning process.
• If any illegal data is encountered in the clonefile, the cloning process will be aborted.
• After the successful completion of the cloning process, the new set of values will be adopted by the TV.
To install a clone file from a USB storage device to the TV
1. Insert the USB flashdrive containing the clonefile into the TV USB port
2. Press the [RC5 SETUP] and [HOME/MENU] button on the setup remote control to enter the setup menu.
3. Scroll down to and select “Upgrades”.
4. Select “Source” and select “USB” then press the [OK] button.
5. Select “Type” and select “Clone” then press the [OK] button.
6. Select “Direction” and select “To TV” then press the [OK] button.
7. Select “Execute” and select “Start” then press the [OK] button.
8. After the successful completion, “Upgrade Completed.  Press OK to continue” message appears on screen.
9. After pressing OK, the TV will restart and initializewith the new values.
Status menu screen (optional)
1. Turn the power on.
2. Press the [RC5 SETUP] and [RECALL/INFO] button on the setup remote control in this order to display the status menu.
You can switch the screen by using [>] or [<] button.
3. Press the [BACK/PP] button to exit the status menu.
SMPS and back-light inverter schematic

Tuesday, 15 October 2019

Grundig Toronto 32-79232 T - GBH173 How to enter the service mode – default data values - SMPS schematics

Grundig - Vision 4 - 26-4940 T - GBH3626; 32-4840F T - GBH3532; 32-4940 T - GBH3632; 37-4940 T - GBH3637
Vision 6 - 32-6950 T - GBH4832; 37-6950 T - GBH4837; 42-6950 T - GBH4842
Service mode and Special Functions
i - call up/exit the dialog center/exit the service mode.
Up/Dn – call up the dialogue line.
OK  - call up the menus.
+/--  - changing settings.
Z  - sub menu: back to main menu
 Main menu: exit the service mode.
Calling up the Service Mode
Press button " i " (INFO)
Enter the code number "8500
Exit the Service Mode
Press button " i "
Basic Settings [Default data]
Software Version Number
The software version number is shown on the lower part of the service menu and of the options, e.g
Channel Search
– Press button " i " (MAIN MENU)
– Select "CHANNEL SETUP" with the buttons "+ / –" and confirm with button "OK" ( ).
– Select "Auto Tuning" with the buttons "Up/Dn" and confirm with button "+"
– Select the required Country with the buttons "+ / –".
– Select "Scan Type" with the buttons "Up/Dn" and adjust with buttons "+ / –".
– Select "Time Zone" with the buttons "Up/Dn" and adjust with button "+ / –".
– Start "Channel setup" with the button "OK"
The auto programme system stops at every station of acceptable reception quality (AFC and coincidence) and stores the station data and the respective standard automatically. The system then continues searching.
Pressing the " i " button stops the programme search.
Hotel Mode
Maximum volume is limited and it is no access to "Setup" at activated hotel mode.
Call up: i >  "8500" > "OPTION 1" > "OK"  > "Hotel" > 12 "AVAIL"
Maximum volume: i > "8500" > "OPTION 1" > "OK"  >  "Hotel Volume" > 12Wert 0…63
Standby power schematic
Main power supply FSP2223-3F01
Main board
Main Power Supply FSP337-3F01, FSP361-3F01