Electrolux ICON 36 inch Induction Cooktop – Error codes and causes

Electrolux ICON 36 inch Induction Cooktop – Error codes and causes – Induction cooking working principle – How to select cookware

How Induction Cooking Works

Induction cooking uses high frequency magnetic energy to heat the cooking utensil when it is placed over the induction coil. The induction fields have no affect on non magnetic surfaces such as paper, plastic, glass, ceramic, or non ferrous metals like aluminum, copper etc.

An induction cooking system requires two key components to operate.
The first component is the induction coil or element. This coil generates the magnetic induction field needed for induction cooking.

The second key component is the cooking utensil or pan with a bottom constructed of material that will attract a magnet.

If a magnet will not stick to the bottom of the pan it cannot be used for induction cooking.

When the proper type of pan is placed over the induction coil and the coil is energized it generates a field of magnetic waves that cause the bottom of the pan to heat.

Induction cooking is highly efficient since the en ergy created by the induction fields is not wasted by heating the glass and surrounding area of the cooktop surface.

Due to this increased efficiency the contents of the pan are heated more quickly than with gas burners or traditional radiant electric and coil elements.

Since the induction fields heat only into the cooking utensil the surrounding surface remains cooler than with traditional cooktops.

SELECTING PROPER COOKWARE

When selecting a pan to use for induction cooking it is important to know the correct size of the pan in order to determine the proper cooking zone to be used. The size of the magnetic portion of the pan bottom has a direct effect on the cooking performance and efficiency of the cooking zone. Pan design and construction vary widely as can be seen by the examples given below.

The following illustrations show some of the variations found in the construction of pan bottoms.

The overall diameter of this pan is 9 inches if measured at the top portion. The flat magnetic portion of the bottom (shaded in gray) is only 7 inches in diameter. This pan would be considered to be a 7 inch pan and should be used on a cooking zone appropriate for this size.

The bottom of this pan is a non magnetic alloy with an encapsulated inner core of magnetic material. The inner magnetic core is 1 inch smaller than the outer dimension of the flat pan bottom. This pan will have different cooking characteristics than the pan previously motioned. The effective cooking diameter of this pan is 6 inches.

Pan has a bottom of non magnetic alloy with a different shaped encapsulated inner magnetic core. The illustration shows that the core is thinner near the outer perimeter of the pan bottom and increases in thickness as it nears the center of the pan. This type of pan will have different cooking characteristics than a pan with a uniform core thickness.

ERROR CODES CAUSES AND SOLUTIONS 

ERROR 32 or 72
Low voltage output from 12V supply on filter board in the 3 cook zone induction module.
-Test all cables & connections on filter circuit board in the 3 zones induction module.
-Replace the filter circuit board in the 3 zones induction module .
-Replace generator circuit boards in the 3 zones induction module
ERROR 33 or 73
Improper voltage output from filter board in the 3 cook zone induction module. 34 Communication failure between filter board and power boards in the 3 cook zones induction module / left side cooking zones.
- Check cable between filter board X12 and generator board X10
- Replace the filter circuit board in the 3 zones induction module .
- Replace generator circuit board in the 3 zones induction module.
ERROR 35 or 75
AC input voltage too low in the 3 cook zones induction module.
- Verify AC input voltage at the cooktop input.
- Verify AC main input cables, screws and jumpers.
- Replace the filter board in the 3 zones induction module
ERROR 36

Communication error between main touch control and filter board.
(3 cook zones induction module / left side cooking zones)
- Verify all communication cables between user interface and both induction generator modules.
- Replace the filter circuit board in the 3 zones induction module .
- Replace generator circuit board (dual) in the 3 zones induction module .
ERROR 37

Heat sink temperature sensor break
(3 zones induction module / left side cooking zones)
-Replace the generator circuit board (LF/LRl) in the 3 zones induction module
ERROR 39

Configuration mismatch between the User Interface and the induction module (occurs when one of the 2 zone induction modules is replaced)
- To resolve this error, Press and hold WARM key, then press
Right Front zone ON key until beep (keep holding WARM) release Right Front zone ON key and press Left Front zone ON key until beep & config starts.
- Replace the filter circuit board in the 3 zones induction module .
ERROR 40

Communication failure between main touch control and filter board.
- Verify AC input at the (2 zones induction housing) (X50 / X52).
- Verify Lin Bus harness cable from X68/X67 on right side filter board (2 zones induction module) to X20 on the left side filter board (3 zones induction module).
- Verify the lin communication wire at the timer input at X4/X5 pin 2.
ERROR 45

Incoming power supply low voltage - Verify incoming power supply to cooktop
ERROR 51

LF Element temperature sensor break - Verify Element temperature sensor is correctly connected to the generator circuit board.
- Replace element if temperature sensor resistor value is not approximatively 1000 ohms (blue wires) at room temperature.
- Replace associated generator circuit board.
ERROR 52

LR Element temperature sensor break
ERROR 53

Center Element temperature sensor break
ERROR 54

RR Element temperature sensor break
ERROR 55

RF Element temperature sensor break
ERROR 60

Touch: general hardware error, keys - Replace main power touch control.
- Replace cook zones touch controls

ERROR 61

LF Element temperature sensor too hot - Verify cooktop ventilation is correct (airway and fan).
- Verify Element temperature sensor is correctly connect to the generator circuit board.
- Replace element if temperature sensor resistor value is not approximatively 1000 ohms (blue wires) at room temperature.
- Replace associated generator circuit board.
ERROR 62

LR Element temperature sensor too hot
ERROR 63

Center Element temperature sensor too hot
ERROR 64

RR Element temperature sensor too hot
ERROR 65

RF Element temperature sensor too hot

ERROR 71

Internal generator error, sync (center cooking zone)
- Test cables & connections on center generator circuit board (single).
- Replace the generator circuit board (single) in the 3 zones induction module .
ERROR 74

Internal generator error, communication (3 zones induction module)
- Check cable between filter board X13 and generator board X10
- Replace the filter circuit board in the 3 zones induction module
- Replace generator circuit board in the 3 zones induction module
ERROR 76

Communication Error in the 3 cook zones induction module for the center cooking zones.
- Verify all communication cables between user interface and both induction generator modules.
- Replace the filter circuit board in the 3 zones induction module .
- Replace generator circuit board for the center cook zone in the 3 zones induction module
ERROR 77

Heat sink temperature sensor break in the 3 cook zones induction module for the center cooking zones.
- Replace generator circuit board for the center cook zone in the 3 zones induction module
ERROR 80

Flash/Rom check fail (EEPROM data) - Replace main power touch control
ERROR 90

AC input voltage too high in the 2 cook zones induction module.
- Verify AC input voltage at the cooktop input.
- Verify AC main input cables, screws and jumpers.
- Replace the filter board in the 2 zones induction module
ERROR 91

Internal generator error, sync in the 2 cook zones induction module.
- Test cables & connections on right generator circuit board.
- Replace the right side generator circuit board
ERROR 92

12V on the service section too low in the 2 cook zones induction module.
- Test all cables & connections on filter circuit board in the 2 zones induction module.
- Replace the filter circuit board in the 2 zones induction module .
- Replace generator circuit boards in the 2 zones induction module
ERROR 93

5V overcurrent on the switched 5V on the service section (2 zones induction module).
ERROR 94

Internal generator error, communication in the 2 cook zones induction module.
- Verify cable between filter board X58 and generator board X10 on the 2 zones induction module.
- Verify the heat sink thermal cutout in the 2 zones induction module is connected and resistance is approximately 0 ohms.
- Replace the filter circuit board in the 2 zones induction module.
- Replace generator circuit board in the 2 zones induction module
ERROR 95

AC input voltage too low in the 2 cook zones induction module.
- Verify AC input voltage at the cooktop input.
- Verify AC main input cables, screws and jumpers.
- Verify the fuse resistance is approximatively 0 ohms in the 2 zones induction module.
- Replace the filter circuit board in the 2 zones induction module
ERROR 96

Communication Error in the 2 cook zones induction module.
- Verify all communication cables between user interface and both induction generator module.
- Replace the filter circuit board in the 2 zones induction module .
- Replace generator circuit board in the 2 zones induction module
ERROR 97

 Heat sink temperature sensor break in the 2 cook zones induction module.
- Replace the generator circuit board in the 2 zones induction module

Sharp LC-46D62U, Sharp LC-52D62U – How to troubleshoot the No-Audio problem

No audio [signal inputs] 

No audio HDMI, No audio in all modes 

No audio at digital broadcast signal reception / AT VHF/UHF broadcast

 No audio signal at digital audio output terminal [analog sound OK] 

How to troubleshoot for No Video problem – Sharp LC-46D62U, Sharp LC-52D62U – LCD Televisions

Sharp LC46D62U LCD TV - how to troubleshoot the problem - No video

Click on the troubleshooting charts to magnify

No video - 1

2. No video – component – S video input

3. No video – VHF/UHF broadcast signal reception

4. No video – HDMI input

LG21FG3RG-T9 CTV – how to enter the service mode, adjustments and circuit diagram

To protect the picture tube and FBT, the average beam current an d peak beam current may not to high.  The beam current limit information and High Voltage(H.V) tracking information are derived from the H.V voltage winding of T401 (point A).
1. The contrast and brightness reduction of RGB is proportional to the voltage on the pin 48 of IC501.
2. As the beam current(slow),and H.V (fast) are changes, the voltage of point A is changed.
3. By the increase of beam current ,the point A voltage is decreased and this information is fed to pin 48 of IC501.
* Contrast reduction begins when V49 is below than 3.1V.
* By the more increasing of the beam current , the V48 decreased and eventually when this voltage is less than 1.8V the brightness reduction is started.

The H drive output is open collector and active low, [the H-out TR should conduct during the low period of output.]

2. Under normal operation condition the duty cycle of the output pulse is 50%.
3. To ensure a smooth start/stop behavior of the horizontal deflection and protect the H-out TR, there are 3 different condition of H-drive output.
During switch-on.
The horizontal output starts with the double frequency (31KHz) and with duty of 75%(off),25%(on).
After about 50mSec of switch-on.
The frequency is changed to normal value(15.625KHz) and duty cycle to 50%.
During switching-off.
Also the frequency is switched to the double value and R.G.B drive is set to Max. and after 100mSec R.G.B is set to Min. and 50mSec later the H drive is switch-off.
4. The H drive pulse from the MICOM (IC 501) is amplified by the horizontal drive circuit, to get sufficient base drive current for the high voltage switching TR (Q401)

How to enter the service mode

Press the OK buttons on both TV set and Remote Controller at the same time to get into SVC mode.

CDL Data Adjustment (LINE SVC-0)
1) Press the SVC button to get into the SVC-0 Mode.
2) Press the Channel UP/DOWN button to select CDLl2.
3) Press the Volume UP/DOWN button until the CDL data is the same as the Table below.

4) Press the OK button to memorize the data.

OPTION Data Adjustment (OPTION-l,OPTION-2)
1) Press OK buttons on both TV set and Remote Controller at the same time to get into SVC mode.
2) Press the Yellow button several times to find OPTION data.
3) Input the correspond OPTION data referring to Table below with the numeric buttons.
4) Press the OK button to memorize the data.

AGC Adjustment (SERVICE 1)

1) Connect RF signal (70dBt0.2d8) and turn on the TV.

Standard adjustment Channel-EU 05 Ch. (frf= 175.25MHz)

2) Press the OK buttons on TV set and Remote Controller at the same time to get into SVC-0 mode.

3) In SVC-0 option, AGCTO is meant for AGC.

4) Press the Volume UP/DOWN button until the AGC Voltage is the same as the Table below.

5) Press the OK button to memorize the data.

Circuit diagram [SMPS and deflection]

Micom-Chroma schematic

White Balance Adjustment.(LINE SVC-0)

NOTE : This adjustment should be performed after screen voltage adjustment.
1) Tune the TV set to receive an 100% white pattern.
2) Press OK buttons on TV set and remote controller at the same time to get into SVC mode.
3) Use the CH CH Key to chose adjustment item.
4) Use the VOL VOL Key to change item data.
5) Adjustment.
a) Make the picture luminance 4.5 changing the " CONTRAST" and "BRIGHTNESS".
b) Adjust X data of low light with BLO-R and Y data with BLO-B.
c) Adjust X dada of High light RG and Y data with BG.
d) Repeat steps b & c until both low & high light hare same as shown below.

Screen voltage Adjustment

1) Connect the probe of oscilloscope to the RK (Red Cathode) of CPT Board.
2) Set the oscilloscope to 50V/div and 20Us/div and after putting GND line upon the lowest grid line of the scope by pressing GND button, enter into DC mode.
3) Tune the TV set to receive a PAL-BG O5GH.
4) Adjust Screen Volume of FBT so that the (DC 150).

TDA7297
15+15w dual bridge amplifier
features
Wide supply voltage range (6.5v-18v)
Minimum external components
Internally fixed gain
Stand-by & mute functions
Thermal overload protection
Short circuit protection

Hisense MSD308PX LCD Television – how to enter service mode – how to update the software - 32 inches LED backlight panel

To enter the Factory OSD Menu
a. With factory RC (remote control)
1. Press “M” button and enter factory mode.(Note1)
2. Press “Menu” button and enter factory OSD menu.
3. Press “CH+”/“CH-” button select the function menu, press “VOL+”/“VOL-” enter the selected function menu. Press “VOL+”/“VOL-” button adjust values in the menu.
4. Press “M” button exit factory mode in the factory OSD menu.
When TV outgoing factory, user cannot enter factory OSD menu with Factory Remote
Note:
1. In the “Factory Menu”, item “Function”>”TOFAC” ,you can select “M” or “U”, default is “U”.
- M-Means you can enter factory mode with factory RC or user RC.
- U-Means you can enter factory mode only with user’s RC.
2. Mode “M” is only used for factory production.

With user’s Remote control
Power on the TV.
1. Press “Menu” button and call up User OSD Menu.
2. Select “ Sound” > “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: Press the standby button then AC turn off and restart the TV, which can exit factory OSD menu.

Firmware update procedure

Upgrading with the ISP_TOOL
Hardware connecting
You can update the software through a special tool (as following)
Connect the Debug board to the TV use VGA interface or the RS232 (4 pin), the other USB port to the computer.

Install the ISP_TOOL4.5.0.4---- only for the first time update.
1 The software is upgraded by a burning tool- ISP_TOOL.exe
2 Find the folder where the ISP_TOOL4.5.0.4 lies in

There are three folders/files in this folder together.
DLPORTIO.dll and FTD2XX.DLL must be in the same folder
3 Double click the ISP_TOOL4.5.0.4 icon, and then a dialog window will show as below.

4 Click the” Config “button. And then a dialog window will show.

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，
5 Click the “Connect”button， if appear the following figure, It indicates that the ISP_TOOL has connected.(According to the tv set,”Device Type” maybe different.)

If appear the following figure， It indicates that the ISP_TOOL has not connected. Please click
the“DisCon”button and “Connect”button to connect..

6 Click the“Read ”button, Choose the correct update file.

7 After the update file has been chosen successfully.

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

8 Click the “Run” button and wait update end.
If show any error message ， then do “Dis Con” >> “Connect”, and click the “Run” button again, till show the dialog window.

Upgrading with the USB
Software can update with USB device:
1. Copy the “*.BIN” file such as “MERGE.BIN” to the root directory of a USB disk.
2. Insert the USB disk into the USB slot of the TV SET.
3. Press “Menu” button and call up User OSD Menu, choose "Channel ">” Software Update(USB)” item. (Note 1)
4. Press “OK”, it will show a confirm message box, Press [◀] button to select “yes” in the confirm message box, to start automatic update.
5. Then it will update the software automatically, [don’t power off during the updating] process.
6. After the software is successfully upgraded, TV SET will restart automatically.
Note:
1. In some TV SET, ”Software Update(USB)” item maybe in “OPTION” menu.
2. After updating, you must confirm the software version in the “Factory Menu” and you'd better do a “Unprotected Clear" in the “Factory Menu”

Power assign:
The Power only has +12V_IN output ， other voltages are converted from +12V_IN.
a. 5Vstb is converted by N19 from +12V_IN， 5VAIN and 5V_USB are converted by N43 from 5Vstb.
b. 3.3Vstb and 3.3V_mcu as standby power supply for standby mode.
c. 3.3V_Normal supply power for N5 and Main IC N46 is converted by N3 from 5VAIN; 2.5V_Normal supply power for N46 is converted by N13 from 5VAIN; VDDC(1.28V) supply power for main IC(core voltage) is converted by N1 from 5VAIN;1.8VA supply power for N41(DDR),N45(DDR) is converted by N15 from 5VAIN.
e VCC_A supply power for N17(audio amplifier) is converted by N42 from +12V_IN; 5V_Tuner supply power for Tuner is converted by N16 from +12V; 5V_USB supply power for USB interface.
f VCC-Panel supply power for Panel is converted by N14 from +12V_IN

RF Signal

Digital intermediate frequency and simulation intermediate frequency are processed by Tuner (U42) from RF Signal. Transport Stream is demodulated directly by main IC from Digital intermediate frequency then enter PCMCIA card to decipher later return the main IC. The simulation intermediate signal that has passed amplification and surface acoustic wave filter to get intermediate frequency enters the main IC. After processed by main IC, next the video signal is processed by SCALER output LVDS signal.to panel . The audio signal is processed and the Audio amplified to the Speakers.

Control Process：

The Power only has 12V(+12V_IN) output ， other voltages are converted from 12V(+12V_IN). N43 and N42 can interrupt other voltages while standby, only reserve standby 5V(5Vstb) and standby 12V(+12V_IN). as following. When TV Power on , PWR-ON/OFF Signal is Low level, 5VAIN Power supply normally ; otherwise when TV standby , N43 is shut off , 5VAIN Power _supply is low.

+12V standby signal control as similar as 5VAIN

Power on, the Panel _Backlight and Brightness are control by the main board . the PIN 4 of XP2 is BL_ON/OFF, the high or low level control the BL_ON/OFF; the PIN 3 of XP2 is BL_ brightness Adjust, through control the level high or low to control the BL_ brightness.