PANASONIC HC V700, HC V707 - High Definition Video Camera How to enter the Service mode, Factory reset, Flash discharge, How to replace the battery, Error codes

PANASONIC HCV700, PANASONIC HCV707

Service Mode

1. Indication method of the service menu Set the mode switch “Motion Picture Recording” mode.
2. While the power is turned OFF, keep pressing the “Power” button, “Zoom lever” to W side and “intelligent auto/Manual” button for more than 3 seconds until the top screen of the Service Mode Menu being displayed.

Service mode menu

Screen display	Contents	Function
1	Factory settings	Function to throw a product up in a factory shipment state (When recorded data in Built-in memory, “error display” is done)
3	Built-in memory self check execution (HC-V700M/V707M only)	Function to check self as for the state of Built-in memory
4	Lock search history indication	Display the camera system error cord for three histories saved in EEPROM
5	Power ON self check result display	Power ON self check (function to diagnose correct function of the device and interface between devices) result display
9	Forced full flash emission	Forced full flash emission for discharging the capacitor on FLASH P.C.B. and set to prohibit charge
10	Erasing the lock histories	Erasing the error histories (working time is not erased)
12	Camera data indications while the video playback	Display the camera informations (Shutter speed, Iris value, White balance and focal length) while playing recorded video

NOTE:

Do not using service mode except above table of Service mode menu.
3. End method of the top screen of the service mode menu Touch the [ EXIT ] of LCD to end the service mode, and then POWER OFF.

Built-in Memory Self Check Execution (HC-V700M/V707M only)
Touch the [ 3 ] of LCD, select Built-in memory self check execution.

Indication contents
# Built-in memory self check result display
Display the Built-in memory self check execution.
Displays other than “OK” are abnormalities of Built-in memory.
Touch the [ BAK ] of LCD to end the service mode, and then POWER OFF.
Lock Search History Indication
Touch the [ 4 ] of LCD, select Lock search history indication.

Indication contents
# Lock search history indication
Display the camera system error cord for three histories saved in EEPROM.
# The error cord contents which are displayed

Error code	Function
51	Focus control is abnormal
52	Zoom control is abnormal
53	OIS lens control is abnormal
54	Zoom control is abnormal
71	Lens cover open/close is abnormal
73	High temperature is abnormal

Power ON Self Check Result Display

Touch the [ 5 ] of LCD, select Power ON self check result display.

Indication contents
# Power ON self check result display
Function to diagnose correct function of the device and interface between devices result display. Display the following communication test result.
- CAM-PWR : communication test between IC3401 and IC1503
- CAM-UNI : Internal communication test of IC3401
Display other than “OK” are abnomalities of each lines.
Cutting of battery connection or AC power supply connection to end the service mode.

Forced full flash emission
Touch the [ 9 ] of LCD, select Forced full flash execution.

Indication contents
# Discharging the capacitor without using register.
Forced full flash emission for charge capacitor completely discharge.
To prevent electric shock, we recommend enforcement before disassembling.
Cutting of battery connection or AC power supply connection to end the service mode.

Erasing the lock histories
Touch the [ 10 ] of LCD, select erasing the lock histories execution.

Indication contents
# Erasing the error histories stored in EEPROM. (working time is not erased) Cutting of battery connection or AC power supply connection to end the service mode.
Camera data indications while the video playback
Touch the [ 12 ] of LCD, select indicating the camera informations while playing back the recorded video.

Indication contents
# While playing back the recorded videos, the camera informations (Shutter speed, Iris value, White balance and focal length) are
superimposed on the LCD screen.

Factory Setting
How To Turn On The Factory Settings
1. Set the mode switch “Motion Picture Recording” mode.
2. While the power is turned OFF, keep pressing the “Power” button, “Zoom lever” to W side and “intelligent auto/Manual” button
for more than 3 seconds until the top screen of the Service Mode Menu being displayed.

3. Touch the [ 1 ] of LCD.
4. Touch the [ YES ] of LCD.
5. After few seconds “END” is displayed or “ESD NODATA” as “NG” is displayed on LCD monitor. Cutting of battery connection or AC power supply connection as a completion of the “FACTORY SETTINGS”.
(After recording at least once, even if the physical format of the build-in memory will be performed, “ESD NODATA” as “NG” is indicated, but “FACTORY SETTINGS” is completed.)

The factory settings clean up and/or refresh the following settings.
1. MENU, MODE, ADJUSTMENT VALUE.
2. SD card format.
3. Reset the folder number and file number of still pictures.
(Setting the folder number is 100, and file number is 0.)
4. Clear the mechanism lock information.
5. Clear the service mode information contents.
6. Close the lens cover
7. Initialize the VIERA Link Physical Address.

How to Discharge the Capacitor on Flash P.C.B.
CAUTION:
1. Be sure to discharge the capacitor on FLASH P.C.B..
2. Be careful of the high voltage circuit on FLASH P.C.B. when servicing.
Before disassembling, perform "6.4. Forced full flash emission" for discharging capacitor.
The capacitor also can be discharged according to the following procedures.
Discharging Procedure
1. Refer to the disassemble procedure and Remove the necessary parts/unit.
2. Put the insulation tube onto the lead part of Resistor (ERG5SJ102:1kΩ /5W). (an equivalent type of resistor may be used.)
3. Put the resistor between both terminals of capacitor on FLASH P.C.B. for approx. 5 seconds.
4. After discharging confirm that the capacitor voltage is lower than 10V using a voltmeter.

How to Replace the Lithium Battery
Replacement Procedure
1. Remove the MIC P.C.B.. (Refer to Disassembly Procedures.)
2. Unsolder the each soldering point of electric lead terminal for Lithium battery (Ref. No. “B4801” at component side of MIC P.C.B.) and remove the Lithium battery together with electric lead terminal. Then replace it into new one.
NOTE:
The Type No. ML-614S/DK includes electric lead terminals.

NOTE:
This Lithium battery is a critical component.
(Type No.: ML-614S/DN Manufactured by Energy Company, Panasonic Corporation)
It must never be subjected to excessive heat or discharge.
It must therefore only be fitted in requirement designed specifically for its use.
Replacement batteries must be of same type and manufacture.
They must be fitted in the same manner and location as the original battery, with the correct polarity contacts observed.
Do not attempt to re-charge the old battery or re-use it for any other purpose.
It should be disposed of in waste products destined for burial rather than incineration.

AOC 715G5665P02, TCL 01E 04021 and Hisense RSAG7.820 SMPS board schematics

AOC 715G5665P02000003M Power board schematic

 TCL 01E 04021 Power board schematic

Hisense RSAG7.820 4716 power board schematic

SKY SCAN 87310 atomic clock settings and trouble shooting

Manual settings
Note: If the Atomic Clock has already successfully received the WWVB time signal and displays the correct time and date, then the Manual settings can be omitted.
After completion of the above described procedures in “Setting up” the manual setting modes can be entered by pressing the SET key. The following settings can now be programmed:
# Time zone setting
# DST ON/OFF
# Language display setting
# Manual time setting
# Year setting
# Month setting
# Date setting
# Weekday setting
# 12/24 hour time display setting
# ºC or ºF setting
TIME ZONE SETTING
After entering the manual setting mode as described above, the time zone can be set between the –1 to –12 hour or Greenwich Mean Time (GMT) range in LCD2. To do this:

1. The time zone (LCD2) will start flashing (Default setting "-5h“). Select the desired time zone by use of the + key.

Note: The time zones from –4 to –10 hours will be displayed with 3 characters abbreviations:

-4 ATL (Atlantic time),
-5 EST (Eastern time; default time zone),
-6 CST (Central time),
-7 MST (Mountain time),
-8 PST (Pacific time),
-9 ALA (Alaska time),
-10 HAW (Hawaii time).
"GMT” will be displayed if set to GMT (0).
2. Press the SET key to enter the “DST Setting“. 

DST SETTING (daylight saving time)

1. The ON digit will start flashing on LCD1. Set the DST ON or OFF by pressing the + key.
2. Press the SET key to enter the “Language Setting“.
Note: The DST default is “ON”, meaning that the WWVB will automatically change the time according to Daylight Saving Time in the spring and fall. For areas that do not recognize DST changes (Arizona and parts of Indiana)turn the DST “OFF”.
LANGUAGE SETTING
The weekdays can be displayed in LCD1 with the preset languages: US English, French and Spanish.
1. Set the desired language for the weekday display in LCD 2 by use of the + key.
2. Press the SET key to enter the mode “Manual Time Setting”.

MANUAL TIME SETTING
In case the Skyscan Atomic Clock is not able to detect the WWVB-signal (disturbances, transmitting distance,
etc.), the time can be manually set. The clock will then work as a normal Quartz clock.
Note: In 12 hours mode the time will be displayed with an additional “PM” for the time from 12:00 noon until 11:59.
1. The hour digits will start flashing on LCD1. Set the desired hours by pressing the + key followed by pressing the SET key.
2. Now the minute digits will start flashing. Set the desired minutes by pressing the + key . If the + key is held, the units will increase by 5.
3. Press the SET key to move to the “Year Setting”.

Note: The unit will still try and receive the signal every day despite it being manually set. When it does receive the signal, it will change the manually set time into the received time. During reception attempts the WWVB tower icon will flash. If reception has been unsuccessful, then the WWVB tower icon will not appear but reception will still be attempted the following hour. WWVB time reception takes place from 12:00 am through 6:00 am each day (attempts WWVB reception every full hour within this time frame). When the time signal is received for example at 1:00 am, the Skyscan Atomic Clock will not attempt to receive the WWVB signal for the remaining hours until 6:00 am. Therefore, the next signal attempt will take place between 12:00 am and 6:00 am the next day. The other times WWVB reception takes place, are upon setup and after manual time set exiting mode. Reception is generally not possible during daylight hours due to the interference of the sun.

YEAR SETTING
The year can be selected sequentially from 2000 to 2049 and will then start over again (default setting 2000). Only the last 2 digits of the year will be visible on LCD2 .
1. The year digits will start flashing on LCD1. Select the desired year by use of the + key.
2. Press the SET key to switch to the “Month Setting”. MONTH SETTING
1. The month digits on LCD2 will start flashing. Set the desired month by use of the + key.
2. Press the SET key to move to the mode “Date Setting”. DATE SETTING
1. The digits for the date will start flashing on LCD2
(Default setting 1). Set the desired date by use of the + key.
Note:
The date can only be set in conjunction with the selected month. For example, it is not possible to set the date 30 if the month of February is selected.
2. Press the SET key to enter the “Weekday Setting”.

WEEKDAY SETTING
1. The weekday symbols will be displayed on LCD2 in the pre-set language and flashing. Set the desired weekday by use of the + key.
2. Press the SET key to enter the mode “12/24 Hours Time Display Setting”.
12/24 HOURS TIME DISPLAY SETTING
1. The “12h” or “24h” will start flashing in LCD1 (Default setting 12h). Select the desired time display mode by use of the + key.
2. Press the SET key to enter the

“ºC/ºF Temperature Setting“. °C OR °F TEMPERATURE SETTING
1. The characters “°C” or “°F” will start flashing on LCD1 (Default setting °F). By use of the + key select “°C” for temperature display in degrees Celsius or “°F” for degrees Fahrenheit.
2. Press the SET key to exit the setting mode and switch back to the normal display mode .
EXIT THE MANUAL SETTING MODES
• To return to the normal display mode from anywhere in manual setting mode simply press the SNZ key anytime.
• If no keys are pressed for at least 15 seconds in setting mode, the Atomic Clock will automatically switch back to normal display mode.
ALARM SETTING
To enter into the alarm setting mode:
1. Hold the ALM key for 2 seconds. The hour digits start flashing.
2. Press the + key to set the hour.
3. Press the ALM key to set the minutes. The minute digits start flashing.
4. Press the + key to set the minutes.
5. Press again the ALM key to exit the Alarm setting mode or wait for 15 seconds automatic timeout.

TO DEACTIVATE THE ALARM:

The alarm will be automatically ON. To deactivate the alarm (OFF), press once the ALM key in normal mode display.

SNOOZE SETTING
The snooze can only be activated during alarm time for a snooze duration of 10 minutes.
OUTDOOR TEMPERATURE TRANSMITTER:
The temperature is measured and transmitted to the Skyscan Atomic Clock every 1 minute. The Atomic Clock will update the temperature display every 5 minutes. The range of the Outdoor Temperature Transmitter may be affected by the temperature. At cold temperatures the transmitting distance may be decreased. Please bear this in mind when positioning the transmitter. Also the batteries may be reduced in power.
433MHz RECEPTION CHECK FOR OUTDOOR TEMPERATURE TRANSMITTER
The Atomic Clock will receive the temperature data within 4 minutes. If the temperature data is not being received 4 minutes after setting up (the display shows “- - -”), then please check the following points:
1. The distance of the Atomic Clock or Outdoor Temperature Transmitter should be at least 6 feet (2 meters) away from any interfering sources such as computer monitors or TV sets.
2. Avoid placing the receiver onto or in the immediate proximity of metal window frames.
3. Using other electrical products such as headphones or speakers operating on the same signal frequency (433MHz) may prevent correct signal transmission and reception.
4. Neighbors using electrical devices operating on the 433MHz signal frequency can also cause interference.
Note: When the 433 MHz signal is received correctly, do not re-open the battery cover of either the Outdoor Temperature Transmitter or Atomic Clock, as the batteries may spring free from the contacts and force a false reset. Should this happen accidentally then reset all units (see Setting up above) otherwise transmission
problems may occur.
The maximum transmission range is 82 feet (25 meters) from the Outdoor Temperature Transmitter to the Skyscan Atomic Clock (in open space). However, this depends on the surrounding environment and interference levels. If no reception is possible despite the observation of these factors, all system units have to be reset (see Setting up)

CARE AND MAINTENANCE:
• Avoid placing the units in areas prone to vibration and shock as these may cause damage.
• Avoid areas where the units can be exposed to sudden changes in temperature, i.e. direct sunlight, extreme cold and wet/moist conditions as these will lead to rapid changes which reduces the accuracy of readings.
# When cleaning the LCD and casing, use a soft damp cloth only. Do not use solvents or scouring agents.
# Do not submerge the units into water.
# Immediately remove all low powered batteries to avoid leakage and damage. Replace only with new batteries of the recommended size.
# Do not make any repairs to the units. Please return it to the original point of purchase. Opening and tampering with the units may invalidate the warranty

TROUBLESHOOTING

No reception of WWVB signal

1) It may help reception to face the front of the Atomic Clock in the general direction of Ft. Collins, Colorado.
2) Wait overnight for signal.
3) Be sure the Skyscan Atomic Clock is at least 6 feet (2 meters) from any electrical devices, i.e. TV sets, computers, or other radio controlled clocks.
4) Remove batteries for five minutes, reinsert and leave the unit alone overnight without pressing any keys.

Hour is incorrect (minute and date are correct).

1) Be sure the correct time zone and daylight saving time are selected.

"OFL“ appears in the indoor temperature section of the LCD

1) Move the Skyscan Atomic Clock to an area with warmer or cooler
surrounding temperature. Current surrounding temperatures are outside measuring range.

"--.-" appears in the outdoor temperature section of the LCD.

1) Remove the batteries of both units for one minute, then reinsert them again. Make sure the batteries are new and fresh.

2) Move the Atomic Clock closer to the transmitter or place the transmitter closer to the Skyscan Atomic Clock. Make sure the clock is at a receivable range from the transmitter.
3) Move the units to another location. Interferences from other electrical devices operating on the same signal frequency (433MHz) may prevent correct signal transmission and reception.

"OFL“ appears in the outdoor temperature section of the LCD.

1) Wait until the current surrounding temperature cools down or increases. Current temperature is outside of the measuring range of the transmitter. The outdoor temperature will be displayed again once the current surrounding temperature is within the range of the transmitter.

How to disassemble LG Voyager keypad if you are experiencing difficulties with the keys sticking.

LG Voyager Keypad Replacement

If there are issues issues texting or navigating with your keypad, it might be necessary to replace your old keypad with a new one.

 Needed: Philips screwdriver

Remove all 4 screw covers from each corner on the back cover.

Hold open.

Pull rubber keyboard off carefully.

Be sure not to remove the silver button panel below the keyboard.

Align the keyboard with four gold tabs at the top of the keyboard.

To reassemble your device, follow these instructions in reverse order.

DAIKIN inverter AC error codes - FTXS30LVJU, FTXS36LVJU, RKS30LVJU, RKS36LVJU

Indoor Unit

FTXS30LVJU, FTXS36LVJU

Outdoor Unit

RKS30LVJU, RKS36LVJU

U0

Refrigerant Shortage

Refrigerant shortage detection I:  Refrigerant shortage is detected by checking the input current value and the compressor running frequency. If the refrigerant is short, the input current is lower than the normal value.

Refrigerant shortage detection II:  Refrigerant shortage is detected by checking the discharge pipe temperature and the opening of the electronic expansion valve. If the refrigerant is short, the discharge pipe temperature tends to rise.

Refrigerant shortage detection III:  Refrigerant shortage is detected by checking the difference between suction and discharge temperature.

Supposed Causes

 Disconnection of the discharge pipe thermostat, indoor or outdoor heat exchanger  thermostat, room or outdoor temperature thermistor

 Closed stop valve

 Refrigerant shortage (refrigerant leakage)

 Poor compression performance of compressor

 Defective electronic expansion valve.

U2

Low-voltage Detection or Over-voltage Detection

Indoor Unit

The zero-cross detection of the power supply is evaluated by the indoor unit PCB.

Outdoor Unit

Low-voltage detection:

An abnormal voltage drop is detected by the DC voltage detection circuit.

Over-voltage detection:

An abnormal voltage rise is detected by the over-voltage detection circuit.

Supposed Causes

 Supply voltage is not as specified.

 Defective DC voltage detection circuit

 Defective over-voltage detection circuit

 Defective PAM control part

 Disconnection of compressor harness

 Noise

 Momentary fall of voltage

 Momentary power failure

 Defective indoor unit PCB

U4

Signal Transmission Error (between Indoor Unit and Outdoor Unit)

The data received from the outdoor unit in indoor unit-outdoor unit signal transmission is checked whether it is normal.

The data sent from the outdoor unit cannot be received normally, or the content of the data is abnormal.

Supposed Causes

Wiring error

Breaking of the connection wires between the indoor and outdoor units (wire No. 3)

Defective outdoor unit PCB

Defective indoor unit PCB

Disturbed power supply waveform.

U7

Signal Transmission Error on Outdoor Unit PCB

Communication error between microcomputer mounted on the main microcomputer and PM1.

The abnormality is determined when the data sent from the PM1 can not be received for 9

seconds.

 The error counter is reset when the data from the PM1 can be successfully received.

 Supposed Causes

Defective outdoor unit PCB.

UA

Unspecified Voltage

The supply power is detected for its requirements (different from pair type and multi type) by the

indoor / outdoor transmission signal.

The pair type and multi type are interconnected.

Supposed Causes

 Wrong models interconnected

 Wrong wiring of connecting wires

 Wrong indoor unit PCB or outdoor unit PCB mounted

 Defective indoor unit PCB

 Defective outdoor unit PCB

E1

Outdoor Unit PCB Abnormality

 The system checks if the microprocessor is working in order.

 The system checks if the zero-cross signal comes in properly.

 The microprocessor program runs out of control.

 The zero-cross signal is not detected.

Supposed Causes

 Defective outdoor unit PCB

 Broken harness between PCBs

 Noise

 Momentary fall of voltage

 Momentary power failure, etc.

E5

OL Activation

A compressor overload is detected through compressor OL.

 If the error repeats, the system is shut down.

 Reset condition: Continuous run for about 60 minutes without any other error.

* The operating temperature condition is not specified.

Supposed Causes

 Defective discharge pipe thermistor

 Defective electronic expansion valve or coil

 Defective FourWay valve or coil

 Defective outdoor unit PCB

 Refrigerant shortage

 Water mixed in refrigerant

 Defective stop valve.

E6

Compressor Lock

A compressor lock is detected by checking the compressor running condition through the position detection circuit.

09/12 class

 Operation stops due to over current.

 If the error repeats, the system is shut down.

 Reset condition: Continuous run for about 11 minutes without any other error

15/18/24/30/36 class

 A compressor lock is detected by the current waveform generated when applying high frequency voltage to the motor.

 If the error repeats, the system is shut down

 Reset condition: Continuous run for about 5 minutes without any other error.

Supposed Causes

 Compressor locked

Compressor harness disconnected

E7

DC Fan Lock

 An error is determined with the high-voltage fan motor rotation speed detected by the Hall  IC.

 The fan does not start in 15 ~ 30 seconds (depending on the model) even when the fan  motor is running.

 If the error repeats, the system is shut down.

 Reset condition: Continuous run for about 11 minutes (09/12 class) or 5 minutes (15/18/24/30/ 36 class) without any other error.

Supposed Causes

 Foreign matter stuck in the fan

 Defective fan motor

 Defective outdoor unit PCB

E8

Input Over current Detection

An input overcurrent is detected by checking the input current value with the compressor running.

 The current exceeds about 9.25 ~ 20 A for 2.5 seconds with the compressor running.

(The upper limit of the current decreases when the outdoor temperature exceeds a certain level.)

Supposed Causes

 Outdoor temperature is out of operation range.

 Defective compressor

 Defective power module

 Defective outdoor unit PCB

 Short circuit

EA

FourWay Valve Abnormality

The room temperature thermistor and the indoor heat exchanger thermistor are checked if they

function within their normal ranges in each operation mode.

A following condition continues over 1 ~ 10 minutes after operating for 5 ~ 10 minutes.

 Cooling / Dry

(room thermistor temp. – indoor heat exchanger temp.) < –5°C (–9°F)

 Heating

(indoor heat exchanger temp. – room thermistor temp.) < –5°C (–9°F)

 If the error repeats, the system is shut down.

 Reset condition: Continuous run for about 60 minutes without any other error.

Supposed Causes

 Disconnection of fourway valve coil

 Defective fourway valve, coil, or harness

 Defective outdoor unit PCB

 Defective thermistor

 Refrigerant shortage

 Water mixed in refrigerant

 Defective stop valve

F3

Discharge Pipe Temperature Control

An error is determined with the temperature detected by the discharge pipe thermistor.

Supposed Causes

 Defective discharge pipe thermistor

(Defective outdoor heat exchanger thermistor or outdoor temperature thermistor)

 Defective electronic expansion valve or coil

 Refrigerant shortage

 Defective fourway valve

 Water mixed in refrigerant

 Defective stop valve

 Defective outdoor unit PCB

F6

High Pressure Control in Cooling

High-pressure control (operation halt, frequency drop, etc.) is activated in cooling operation if the

temperature sensed by the outdoor heat exchanger thermistor exceeds the limit.

Supposed Causes

 The installation space is not large enough.

 Dirty outdoor heat exchanger

 Defective outdoor fan motor

 Defective stop valve

 Defective electronic expansion valve or coil

 Defective outdoor heat exchanger thermistor

 Defective outdoor unit PCB

H0

Compressor System Sensor Abnormality

 The system checks the DC current before the compressor starts.

 The DC current before compressor start-up is out of the range 0.5 ~ 4.5 V (sensor output

 converted to voltage value)

 The DC voltage before compressor start-up is below 50 V.

Supposed Causes

 Broken or disconnected harness

 Defective outdoor unit PCB

H0

 The system checks the supply voltage and the DC voltage before the compressor starts.

 The system checks the compressor current right after the compressor starts.

 The supply voltage and the DC voltage is obviously low or high.

 The compressor current does not run when the compressor starts.

Supposed Causes

 Disconnection of reactor

 Disconnection of compressor harness

 Defective outdoor unit PCB

 Defective compressor

H6

Position Sensor Abnormality

A compressor start-up failure is detected by checking the compressor running condition through the position detection circuit.

If the error repeats, the system is shut down.

Reset condition: Continuous run for about 11 minutes (09/12 class) or 5 minutes (15/18/24/30/ 36 class) without any other error

Supposed Causes

 Disconnection of the compressor relay cable

 Defective compressor

 Defective outdoor unit PCB

 Start-up failure caused by the closed stop valve

 Input voltage is outside the specified range.

H8

DC Voltage / Current Sensor Abnormality

DC voltage or DC current sensor abnormality is identified based on the compressor running frequency and the input current.

 If the error repeats, the system is shut down.

 Reset condition: Continuous run for about 60 minutes without any other error

Supposed Causes

 Defective outdoor unit PCB

H8

CT or Related Abnormality

A CT or related error is detected by checking the compressor running frequency and CT-detected input current.

Supposed Causes

 Defective power module

 Broken or disconnected wiring

 Defective reactor

 Defective outdoor unit PCB

H9,J3,J6,P4

Thermistor or Related Abnormality (Outdoor Unit)

This fault is identified based on the thermistor input voltage to the microcomputer. A thermistor fault is identified based on the temperature sensed by each thermistor.

Supposed Causes

 Disconnection of the connector for the thermistor

 Defective thermistor corresponding to the error code

 Defective heat exchanger thermistor in the case of J3 error (outdoor heat exchanger thermistor in cooling operation, or indoor heat exchanger thermistor in heating operation)

Defective outdoor unit PCB

L3

Electrical Box Temperature Rise

 An electrical box temperature rise is detected by checking the radiation fin thermistor with the compressor off.

Supposed Causes

 Defective outdoor fan motor

 Short circuit

 Defective radiation fin thermistor

 Disconnection of connector

 Defective outdoor unit PCB

L4

Radiation Fin Temperature Rise

A radiation fin temperature rise is detected by checking the radiation fin thermistor with the compressor on.

Supposed Causes

 Defective outdoor fan motor

 Short circuit

 Defective radiation fin thermistor

 Disconnection of connector

 Defective outdoor unit PCB

 Silicon grease is not applied properly on the radiation fin after replacing the outdoor unit PCB.

L5

Output Overcurrent Detection

An output overcurrent is detected by checking the current that flows in the inverter DC section.

Supposed Causes

 Poor installation condition

 Closed stop valve

 Defective power module

 Wrong internal wiring

 Abnormal power supply voltage

 Defective outdoor unit PCB

 Defective compressor

How to disassemble - Xbox 360 – Step by step disassembling procedure

Removing the top and bottom cover - Removing the Face-plate Top and bottom covers

 Pull up the bottom side of the front faceplate, and completely detach the whole piece.

If you bought the special open tool, insert the pin into the whole on top of the XBOX where the hard drive is docked. See below if you do not have the tool.

Instead you may put your finger under the top cover to the side of the DVD drive and pull up until the first two clips come out. Just lift the first 1/3rd.

Next with the torx screwdriver or special open tool pin, poke the whole in the exact place as illustrated to unclip the next clip. One on each side. The exact location is in-between and belowtwo solid holes of white plastic seen below.

The last clip on the side pictured of the top cover is accessible by removing the rubber support. However, I prefer stick my hand under and pull up so I do not have to remove it. Careful not to break the clips when you reach in and push the plate up. (If you remove the rubber pad, you can super-glue it back on.)

Now we have to turn the console over and take off the flat grey cover on the other side. Poke the 3 places as shown. Here is the 1st hole. There is another in the middle.

Here is the 3rd hole on this side. Next do the 3 clips on the other side the same way. Remove the piece, and set it aside.

Removing the White Outer shell 

(Continue to next page of you do not have the special tool.) Otherwise, turn to the back of the console, and put the 2 pegs on the side with the pin into the two holes above where the power cord plugs-in. (See below.)

Turn or push apart the case to loosen that side.

On the other side, put the corresponding pegs into the holes above the AV/HDMI TV port.

Turn or push to separate the console pieces.

Turn the console flat (horizontal), but also upside down as pictured. Notice the 4 clips on the front… Disconnect these with your finger, and pull up on the side of the case as pictured while you unclip the other side. Note that you will be voiding the warranty at this point by opening the console.

Here is the other side. Undo all the clips and pull the top of the case up (Technically the

bottom-side since the console is upside down.) It should be lose and you can lift up the cover now.

Picture of the removal of the first half. If you have used the open tool you’re done.

If still attached, hold the steel case XBOX down, and push the case cover backwards.

Here is a side view. Careful! It will pop out.

Now the top cover is off. Set aside.