Question Answer and Sony LCD TV Reset

SONY Bravia Reset Method 

There are three different ways to reset your Android TV™. Depending on the issue you are experiencing, you may only need to perform Option A (Power Reset). If this doesn't resolve the issue, perform Option B (Factory Data Reset). If the issue still occurs, then perform Option C (Forced Factory Reset).

VIDEO: Reset an Android TV.

Option A: Power Reset

1. Unplug the TV power cord from the wall outlet and wait one minute.
2. Plug the power cord back in.

Option B: Factory Data Reset

IMPORTANT: Performing a factory data reset will remove all customer settings in the TV including apps, channels, and wireless network settings.

1. On the supplied remote control, press the HOME button.
2. Select Settings.
3. Select Storage & reset.
4. Select Factory data reset.
5. Select Erase everything.
6. Select Yes.

Option C: Forced Factory Reset

IMPORTANT:

• Performing a forced factory reset will remove all customer settings in the TV including apps, channels, and wireless network settings.
• If your TV has the Android™ 6.0 (Marshmallow) or Android 7.0 (Nougat) operating system, a forced factory reset resolves issues such as App errors, TV restarts by itself, or not responding to remote control commands.

• A forced factory reset can only be done if the TV has been upgraded to the Android 6 OS.
• If you can access the TV menu, perform a factory data reset instead.
• This procedure may require two people.
• Depending on which TV model you have, the location of the buttons will vary.

The number of the buttons on the back of your TV determines which reset steps you need to follow

Quest and Answer

Model: Skyworth 30AAA Chassis 8TP2 LCD TV
Symptom: Sometime display white screen and then back to normal. After
power on the TV, the words “Please wait” character move to top left side.
Repair/Solution:
Replaced the U804 (APX1117-5V) and the TV is working properly now.


Model: SONY KDL32S2010E Chassis WAX2 LCD TV
Symptom: Switches to standby for a short while, then back again.
Repair/Solution:
Replace standby push button on user control, has contact resistance.

Model: Sony KDL32U2000 Chassis SE1 LCD TV
Symptom: No Picture.
Repair/Solution:
Check SMD fuse CP101P on T-CON board. The T-CON board is behind the
BDT board


Model: SONY KDL40U2000 with SE1 Chassis LCD TV
Symptom: No start-up, red LED light flashes 3 times.
Repair/Solution:
TV has slow start-up before this symptom occurred. When check standby 5v ok
and PSU is heat sensitive. Check and replace the C6055 (47uf/25v) in G2
supply it will solve the problem.


Model: SONY KDL40U2000 LCD TV
Symptom: Error codes 4
LED light turns green, flashes 4 times then goes green again and flashes 4 times
again. Fuse (500mA) on inverter panel is open circuit.
Repair/Solution:
Replace the fuse on inverter board.


Model: SONY KLV26U2520 Chassis SE1 LCD TV
Symptom: No picture but sound ok.
Repair/Solution:
Check SMD fuse CP101P on LVDS panel (T-CON).


Model: Sony KDL32U2000 Chassis SE1 LCD TV
Symptom: Stuck in standby. Standby LED light is green.
Red LED light flashes 3 times. No remote control or front panel functions.
Repair/Solution:
Check or replace D301 zener diode (can be use a 5v zener diode) for short
circuit.


Model: Sylvania LC-420SSB (A81 H1UH)
Symptom: High frequency noise from power transformer T600 when the TV is
in the standby mode.
Repair/Solution:
Remove diode D655 from the power supply.


Model: Sylvania LC420SS8 LCD TV
With Power Supplies:
1ESA20888
1ESA20888-PW
1ESA14710
1ESA14710-PW
Symptom: Low level hums (buzz) sound from speakers.
Repair/Solution:
Perform the following fix on the power supply board.
1. Cut Jumper J220.
2. Cut Jumper J256.
3. Solder a wire (about 140mm AWG20) from J190 to J256. On J256, solder the
jumper on the Audio Amplifier (IC800) side.


Model: Toshiba 32WLT58 LCD TV
Symptom: Dead
Repair/Solution:
Check F870 (2A), Q860 (STRZ4479) and D866. If F801 open circuit, then
check the voltage regulator Q820 for short circuit. Also checked R831
(4.7R/5W) and D825 (MTZJ33A).


Model: Toshiba 20W330DB Chassis 17MB222 (Vestel) LCD TV
Symptom: No Power
Repair/Solution:
The main fuse F800 (T2.5A) blew. Found main filter TR801 short circuit, D824
(ST-TH12R06FP) also shorted. Check SMD IC802 (FAN7529) and Q803
(FQPF13N50C) both short circuits. R830 (0.22R/3W) and SMD resistor R823
(15R) both also open circuits.


Model: Toshiba 20W330DB Chassis 17MB222 (Vestel) LCD TV
Symptom: Stuck in Standby Mode.
Repair/Solution:
If the EEPROM IC was removed, the standby LED light turns to green colour.
But still can’t start-up. Try to programme a new EEPROM IC, because can’t get
the actual version of firmware, and then replace a new mainboard (17MB22-2).
The TV is working properly now.


Model: Viewsonic N3260W VS114361M LCD TV
Symptom: No startup
Repair/Solution:
Check capacitors (with ESR Capacitor tester), Q7 and SMD resistor R65 (5.1R)
in primary side of PSU. This TV set using the FSP228-3F01 PSU.


Model: Viewsonic N3260W VS114361M LCD TV
Symptom: Picture flickers and is brighter on the right, than on the left.
Repair/Solution:
Replace four electrolytic capacitors (2x 820uF and 2x 1000uF) in upper left
PSU.


Model: Vizio VO42LFHDTV10A LCD TV
Symptom: Green distortion in picture.
Repair/Solution:
If PSU secondary side voltages ok. Check & clean contacts of ribbon cables
coming from control board.


Model: Westinghouse LTV40W1HDC LCD TV
Symptom: Blue screen. No sound, no picture and no OSD.
Repair/Solution:
Replace circuit protector fuse on T-CON board.


Model: Wharfedale LCD3210AF Chassis 17MB116 LCD TV
Symptom: Starts-up, backlight came after that switches off immediately.
TV runs ok when inverter board is externally supplied with 24v.
Repair/Solution:
Replace the C877 and C878 (15nf/630v) between heatsink of switching
transistor and larger transformer on the primary side of the PModèe: