REPAIRING AND NOT THROWING AWAY

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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Friday 8 March 2019

HAIER HL32LE2 SERVICE MODE DESCRIPTION

HAIER HL32LE2 SERVICE MODE DESCRIPTION

HAIER HL32LE2 

SERVICE MODE  DESCRIPTION 

SERVICE MODE 
How to enter into Service Mode
The way to the factory mode menu:
Step 1: Press Menu,
Step 2: Select the Audio
Step 3: Input 8893,
System will be into the factory mode menu when 3 steps above are done.
How to exit
If you want to exit this factory menu, please press the button ”Menu” on the remote.
CONTENTS OF SERVICE MODE
Version, S/N, Panel Resoution
Version info: The first item is the Model Name and the second one is current software version.
Auto Color
The option could only be used in the VGA and Component model. When we found the color in the two models was abnormal. Then we can use the function to adjust it automatically.
White balance/Color tempreture
Picture Mode
Audio mode
Aging mode
Power on mode
Reset to default
Reset all setting to default
Function Description
Main Board
Process signal which incept from exterior equipment then translate into signal that panel can display.
Connector definition
Main board connector
Power connectors (CN3, CN5)
CN17
CN17
Pin number
Signal name
Pin number
Signal name
1
+12V
8
Dimming
2
+12V
9
GND
3
GND
10
PWR_ON/OFF
4
+12V
11
NC
5
GND
12
BL_ON/OFF
6
GND


7
+5V_STB


 Notes:
CN17-Pin 12: Backlight on/off:
The system can turn on or turn off the backlight of TFT LCD Panel through the power supply unit path.
CN17-Pin 10: System power on / standby
System board will use this pin to control system power.
CN17-Pin 8: Control the luminance of backlight
The system can generate the PWN signal to control the strength of TFT LCD Panel’s backlight through this connector
Remote connector (CNE1)
Pin number
Signal name
Description
1
5VS
5V
2
IR-IN
IR
3
LED_R
LAMP RED
4
LED_B
LAMP BLUE
5
GND
GND
 Keyboard Connector (CNE2)
Pin number
Signal name
Description
1
GND
GND
2
KEY0
KEY0
3
KEY1
KEY1
4
3.3VS
3.3V

LCD LVDS CONNECTION AND VOLTAGES

Pin No
Starconn 093G30-B0001A-1
1
VCC
+12V, DC, Regulated
2
VCC
+12V, DC, Regulated
3
VCC
+12V, DC, Regulated
4
VCC
+12V, DC, Regulated
5
GND
Ground and Signal Return
6
GND
Ground and Signal Return
7
GND
Ground and Signal Return
8
GND
Ground and Signal Return
9
LVDS Option
Open/High(3.3V) for NS, Low(GND) for JEIDA
10
Reserved
NC(Aging)AUO internal test
11
GND
Ground and Signal Return for LVDS
12
RIN0-
LVDS Channel 0 negative
13
RIN0+
LVDS Channel 0 positive
14
GND
Ground and Signal Return for LVDS
15
RIN1-
LVDS Channel 1 negative
16
RIN1+
LVDS Channel 1 positive
17
GND
Ground and Signal Return for LVDS
18
RIN2-
LVDS Channel 2 negative
19
RIN2+
LVDS Channel 2 positive
20
GND
Ground and Signal Return for LVDS
21
RCLK-
LVDS Clock negative
22
RCLK+
LVDS Clock positive
23
GND
Ground and Signal Return for LVDS
24
RIN3-
LVDS Channel 3 negative
25
RIN3+
LVDS Channel 3 positive
26
GND
Ground and Signal Return for LVDS
27
Reserved
NC (AUO internal test)
28
Reserved
NC (AUO internal test)
29
GND
Ground and Signal Return
30
GND
Ground and Signal Return
5 VOLT DC DC CIRCUIT 
CLICK ON THE IMAGE TO ZOOM IN
Posted By: FRANK at 05:12
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