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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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 6 February 2019

SHARP LC-60 – SHARP LC-80 – LCD TV - ERROR CODES – SERVICE MODE – SOFTWARE UPDATE

Sharp LC-60 – Sharp LC-80 – LCD TV - Error codes – Service mode – Software update

Sharp LCD COLOUR TELEVISIONLC-60/70LE740E/RU,741E/S,743E - LC- 60LE840E/RU,841E/S,843E - LC-80LE645E/RU,646E/S,648E
LED Blinking codes, Firmware update, Factory setting - EUROPE/RUSSIA/SWEDEN
Initialization to factory settings
[When the factory settings have been made, all user setting data, including the channel settings, are initialized.  (The adjustments done in the adjustment process mode are not initialized.) Keep this in mind when initializing these settings.]
Factory settings
Ends by turning off the MAIN POWER key.
[Factory setting with adjustment process mode]
• Enter the adjustment process mode.
• Move the cursor to [INDUSTRY INIT]
• Use the R/C key to select a region from [EUROPE/RUSSIA/SWEDEN] and press the [OK] key.
• “EXECUTING” display appears.
• After a while, “SUCCESS” display appears, the setting is completed.
When succeeding: Background color (green)
When failing: Background color (red)
The following items are initialized in the factory setting.
1) User settings
2) Channel data (e.g. broadcast frequencies)
3) Maker option setting
4) Password data.
After adjustments, exit the adjustment process mode.
To exit the adjustment process mode, unplug the AC power cord from the outlet to forcibly turn off the power.
When the power is turned off with the remote control, unplug the AC power cord and plug it back in (wait approximately 20 seconds before plugging in the AC power cord).
After completing the NET connection., execute the NET initialization (Record of the server access).
Execute the initialized in the factory setting again when you turn on the power supply after the initialized in the factory setting is set.
Upgrading the software
1. Turn on the AC power.
2. Insert the upgrading USB flash memory for upgrade into the service slot.
(After a while, an external input changes into USB automatically.)
3. Use the Menu button and cursor keys, Ch keys  of R/C or on the set to select HOME - TV Menu - Setup - Information - Software update - USB update on OSD menu.
4. The message (Insert the USB memory device contains the software update file) shows up.
Push OK when if there is no problem.
5. After a while, if software update file is detected in the USB memory device, the following screen shows up.
Select OK when if there is no problem.
NOTE: If USB memory device isn’t correctly inserted in TV, caution shows up.
Please insert USB memory device and retry software update.
NOTE: If there are more than two software update files in the USB memory device, caution shows up.
Please insert one file and retry software update.
NOTE: If there is no software update file in the USB memory device, caution shows up.
Please insert the correct file and retry software update.
NOTE: If software update file in the USB memory device doesn’t mutch this model, caution shows up.
(Because Model name is unmatched or check sum error occurs.)
Please insert the correct file and retry software update.
NOTE: If software update file in the USB memory device is already installed, caution shows up.
Please reconfirm the software version and reinstall. (If necessary)
6. The caution for update showes up.
• The picture will temporary go dark until the software update display appears.
• Wait several minutes and don’t unplug the AC cord.  Select OK when if there is no problem.
7. Software update starts.
Please wait for a while until the bar shows 100%.
NOTE: Do not take out the USB memory device during updating.
8. When all the procedures are complete, the following upgrade success screen shows up.  The new software version can be confirmed on screen.
After a while, Turn off power and boot-up automatically.
NOTE: TV is restarted automatically; the AC code need not be pulled out.
9. After boot-up, the following caution shows up.
Select OK when if there is no problem.
Software update is completed; please remove the USB memory device.
[Then get the set started and call the process adjustment screen to check the main software version.]
Adjustment method after PWB and/or IC replacement due to repair
The unit is set to the optimum at the time of shipment from the factory.
If any value should become improper or any adjustment is necessary due to the part replacement, make an adjustment according to the following procedure.
1. Procure the following units in order to replace the main unit.
MAIN UNIT: DKEYDF733FM62 (LC-80LE645E/RU)
MAIN UNIT: DKEYDF733FM63 (LC-80LE646E/S)
MAIN UNIT: DKEYDF733FM64 (LC-80LE648E)
[Caution when replacing IC (IC2001) in the main unit]
The above IC is Monitor microprocessor.
Before replacing the relevant part, procure the following parts in which the data have been rewritten.
IC2001 - RH-iXD241WJNWQ  - Monitor microprocessor
 [Caution when replacing ICs (IC8401, IC3303) in the main unit]
When replacing either IC8401 or IC3303, exchange MAIN units for DKEYDF733FM62 (LC-80LE645E/RU), DKEYDF733FM63 (LC-80LE646E/S) DKEYDF733FM64 (LC-80LE648E).
Each part should not be individually exchanged.
HDMI ROM Writing
After replacing IC1504, execute “HDMI EDID WRITE”.
Please execute it after checking MODEL NAME & INCH SIZE. are correct.
If MODEL NAME & INCH SIZE. are not correct, set them previously. 
The ROM data based on information of MODEL NAME & INCH SIZE.
1) Enter the process adjustment mode in TV
2) Use the cursor keys  and CH keys  of R/C to select the item [HDMI EDID WRITE].
3) It is completed with OK displayed.
2. After replacing the LCD panel or LCD control/MAIN UNIT, check MODEL NAME in the following procedure.
1) Enter the process adjustment mode in TV.
2) Use the cursor keys  and CH keys  of R/C to select the item [MODEL NAME].
3) Verify that the Model name is displayed.
4) If the Model name doesn’t match, select the values of the Model name with the VOL keys (+/-).
5) After selection in Step 4), press the OK key, and it is completed with OK displayed.
6) Use the cursor keys and CH keys  of R/C to select the item [PANEL_SIZE].
7) Verify that the panel size is displayed.
8) If the size doesn’t match, select the values of the panel size with the VOL keys (+/-).
9) After selection in Step 8), press the OK key, and it is completed with OK displayed.
10) After setting [MODEL NAME] [PANEL_SIZE], unplug the AC power cord and plug it back in.
3. After replacing the LCD panel or LCD control PWB, adjust the VCOM in the following procedure.
1) Enter the process adjustment mode.
2) Use the cursor keys and CH keys of R/C to select the item [VCOM ADJ].
3) Press the OK key to verify that the adjustment pattern is displayed.
4) Use VOL keys (+/-) of R/C to adjust the flicker in the center of the screen to minimum.
5) When the optimal state is achieved in Step 4), press the OK key to turn the pattern to OFF.
Entering and exiting the adjustment process mode
1) Unplug the AC power cord of running TV set to force off the power.
2) While holding down the “VOL (-)” and “INPUT” keys on the set at once, plug in the AC power to turn on the power.  The letter “K” appears on the screen. This state is in Inspection mode.
3) Next, hold down the “VOL (-)” and “CH (Dn)” keys on the set at once.
Multiple lines of blue characters appearing on the screen indicate that the set is now in the adjustment Process mode.
If you fail to enter the adjustment process mode (the display is the same as normal startup), retry the procedure.
4) To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the power.
(When the power is turned off with the remote controller, once unplug the AC power cord and plug it in again. In this case, wait for 20 seconds or so after unplugging.)
[Be careful in handling the information described here lest the users should know how to enter the adjustment process mode.  If the settings are tampered with in this mode, unrecoverable system damage may result.]
Remote controller key operation and description of display in adjustment process mode.
CH keys => Moving an item (line) by one (UP/DOWN)
VOL keys (+/-) => Changing a selected item setting (+1/-1)
Cursor [Up/Dn]=> Turning a page (PREVIOUS / NEXT)
Cursor [Left/Right] => Changing a selected line setting (+10/-10)
INPUT => Input source switching (toggle switching) (TV→EXT1→ etc...)
OK => executing a function
RETURN => Returning to a present page
[Input mode is switched automatically when relevant adjustment is started so far as the necessary input signal is available.]
Description of display
Public mode setting [PUBLIC MODE]
Copy Mode
1. Starting the Copy Mode
1) Method of needing password
a) While holding down the "INPUT" and "Volume UP" keys on the set at once, plug in the AC power cord to turn on the power.
b) Display the Pass Word input screen.
After a while, value of Enter password appears on the screen.
Operation procedure
• The initial input position is the digit at the left end.
• For the numeric keys “0” to “9” of R/C, key input is accepted.
Input of the other keys is prohibited.
• Change “—” to “ *” by inputting the numeric key at the input position, and shift the input position rightward one digit.
• When three digits are completely input, the Pass Word is judged.
c) Check the Pass Word by inputting three digits.
If the Pass Word “3” “6” “9”, it shifts to the Copy Mode setting screen.
In another case, the screen is erased, and it operates in the ordinary mode.
2. Exiting the Copy Mode Setting screen
There is following way to exit the Copy Mode setting screen.
• Turn off the power. (Unplug the AC power cord from the outlet to forcibly turn off the power.)
4. Restriction of Copy Mode
• USB thumb drive should be more than 1Mbyte.
• File system of USB thumb drive should be FAT (FAT32).
• More than one USB thumb drive shouldn't be connected to TV.
• All USB terminals can be valid, but more than one USB thumb drive shouldn't be connected to TV.
• If USB device is detected by TV, focus is not appropriated to items.
• In Copy mode (TV→USB) and (USB→TV), following should be matched.
Vender Name (Fixed)
Key Information (Fixed)
USB Cline Version
Inch Size
Country setting (Factory initialization)
Model Name
Software Version
• In each TV, setup of Network and IP control should be set again.
NOTE: • It is unnecessary to execute “Initial Auto Instration” for Copy Mode.  (Obviously, setting the country is also unnecessary.)
• Copy Mode can’t start until the TV recognizes a USB device.
TV takes about 20 seconds to recognize a USB device after boot-up.
6. Operating
1) Copy mode (TVψUSB))
Execute start in Copy Mode setting screen.
If USB device is detected by TV, focus is not appropriated to items.
[Wait̖] is displayed while executing it.
When succeeding: Done is displayed.
When failing: Failed is displayed.
[Key operation is not valid in coping.]
After success of copy, unplug the AC power cord from the outlet.
LED flashing timing chart at the time of the error
Lamp failure => low-speed blinking
Flashes once.
Power failure => low-speed blinking
Flashes twice.
Communication failure with main CPU => low-speed blinking
Flashes 3 times.
Others => low-speed blinking
Flashes 4 times.
Lamp failure Flashes once
(High speed)
LAMP_ERR (19pin): Abnormal H.
Confirmed after 8 consecutive detections at 64ms intervals (detected only when the backlight is on).
NOTE: After 5 detection counts, the lamp cannot be activated except in the monitoring process.
To confirm the problem, “Lamp Error detection off-mode” is prepared.
This mode compulsorily starts the set disregarding the count.
PS_ON.  AC_DET failure.  Flashes once
(High speed)
AC_DET (28pin): Abnormal (L).
If error is detected during start-up or operation, the power is turned on again by interrupt handling (instantaneous blackout processing).
SM_POW Main 13V failure.  Flashes twice
(High speed)
DET_13V (32pin): Abnormal (L). Main 13V is not applied.
If error is detected during start-up or operation, the power is turned on again by polling.
D_POW.  Digital 3.3V failure.  Flashes 3 times
(High speed)
DET_D3V3 (33pin): abnormal (L). Digital 3.3V is not applied.
If error is detected during start-up or operation, the power is turned on again by polling.
PANEL_POW.  Panel 12V failure.  Flashes 5 times
(High speed)
DET_PNL12V (34pin): abnormal (L). DET_PNL12V is not applied.
Detection starts after receiving command from Panel Power ON.  The power is turned off by polling.
Initial communication reception failure.  Flashes once
(High speed)
Initial communication from the main CPU is not received.  (Request for the monitor model No. is not received.) => Communication line failure or main CPU start-up failure.
Start-up confirmation reception failure.  Flashes twice
(High speed)
Start-up reason confirmation from the main CPU cannot be
received.
(Startup communication until start-up reason notification command is not received.) => Main CPU start-up failure or monitor microprocessor reception failure.
Regular communication failure.  Flashes 3 times
(High speed)
Regular communication that is performed at 1 second intervals in the normal operation is interrupted. => Main CPU operation failure or monitor microprocessor reception failure.
Other communication failure.  Flashes 5 times
(High speed)
When a request (PM_REQ=H) is sent from the main microprocessor, the request command is not output from the main CPU, etc. =>  Main CPU operation failure or monitor microprocessor reception failure.
Monitor temperature failure.  Flashes once
(High speed)
If the panel temperature is 60°C or more for 15s or more in a row, CAUTION appears on the OSD (flashes in red in the lower right screen).
If the panel temperature is 60°C or more for 25s or more in a row, error standby is activated.
(MONITOR MAX TEMP on page (12/21) of the adjustment process: Change AD value for temperature failure): Thermistor.
Main failure.  Flashes 3 times
(High speed)
Main microprocessor detection error (CPU temperature error, etc.).
LED flashing specification at the time of the error (LC-80LE645E/RU,646E/S,648E)
Display method
LED that can be used are only one of the central icon (Emblem Unit).  This expresses the error situation by combining blinking at low speed and blinking at high speed.
• For this model, the blinking pattern displayed first is only a low-speed blinking.  This expresses a rough content of the error.
• For this model, details are displayed by a high-speed blinking by pushing remote control MENU key.  This expresses details of the error.
Details are distinguished by the blinking frequency.
• It doesn’t return to the outline display again (blink at low speed) by pushing the MENU key (The toggle is not done).
Confirm “MONITOR ERR CAUSE” of the adjustment Process mode, when the error doesn't reproduce by having returned from the error.
• The process of the upgrade is expressed by the brightness of point LED that smoothness changes.
• The upgrade completion is expressed by the LED brightness that changes in a staircase pattern.
MONITOR ERR STBY
Communication/Power failure detected by the monitor microprocessor (IC2001) is stored on EEPROM, states can be confirmed in the adjustment process mode.
Error code details