Changhong Electric HLS80JS User manual

LED COLOUR TV
MAINTENANCE MANUAL
MODEL: HLS80JS CHASSIS（MSD3663）
PCB VERSION：JUC7.820. 00239365
Please read this manual carefully before maintenance

I
CATALOG
Chapter1 Safety and notes ......................................................................................................................................................... 1
1-1 Installation notes ......................................................................................................................................................... 1
1-2 Attention points of operation and using ...................................................................................................................... 1
1-3 Storage notes ............................................................................................................................................................... 1
1-4 Dismantling notes........................................................................................................................................................ 1
1-5 High-voltage warning.................................................................................................................................................. 2
Chapter2 whole machine standard and terminal functions........................................................................................................ 2
2-1 Basic standard ............................................................................................................................................................. 2
2-2 Introduction of terminals(practicality photos)............................................................................................................. 3
Chapter3 Main chip functions and the introductions of power supply...................................................................................... 4
3-1 Main IC and functions of HLS80JS ............................................................................................................................ 4
3-2 Pin function description of HLS80JS chip.................................................................................................................. 5
3-2-1 MSD3663 recommended operating power conditons...................................................................................... 5
3-2-2 R842 brief introduction:................................................................................................................................... 6
3-2-3 RDA5815M brief introduction: ....................................................................................................................... 7
3-2-4 GD25Q64CSIG brief introduction:.................................................................................................................. 7
Chapter4 The chassis frame diagram, mainboard power supply systems, mainboard interface definition ............................. 10
4-1 Power supply system................................................................................................................................................. 10
4-1-1 MSD3663 Power Block Diagram .......................................................................................................................... 10
4-1-2 Pin voltage of the voltage adjustor on the mainboard............................................................................................ 10
Chapter5 Software upgrade instructions...................................................................................................................................11
5-1 UART Upgrade ..........................................................................................................................................................11
5.2 USB Upgrade.......................................................................................................................................................... 14
Chapter6: Classical accident maintenance procedures and examples ..................................................................................... 16
6-1 The thinking of don’t boot......................................................................................................................................... 16
6-2 Common problems for your reference ...................................................................................................................... 16
Chapter7 Factory mode parameter setting instructions and notes ........................................................................................... 17
7-1 Enter into the factory mode ....................................................................................................................................... 17
7-2 Setting method of factory menu ................................................................................................................................ 43

1
Chapter1 Safety and notes
1-1 Installation notes
(1) Please don't beat or rub, scratch the surface of the LED screen heavily, don’t touch it with your hand
casually.
(2) When the screen is dirty, please clean it with absorbent cotton or cotton cloth slightly.
(3) Please clean it timely when water or other viscosity pollution fall, which may make the LED face or
color change.
(4) Please don’t make the LED screen shaked by strong external force.
1-2 Attention points of operation and using
(1) Please unplug the power cable before moving the LED screen.
(2) Please don’t change the original setting of the mainboard’s, if not, the brightness and white balance etc.
may not meet the specification.
(3) The radiation of a long time using in the room temperature is larger than the low temperature.
(4) Please note that the long displaying image may remain at the top when shutdown the machine.
(5) Please avoid the impact from the mobile phone to protect your TV.
1-3 Storage notes
(1)When stored for a long time, please keep the temperature between 0℃to 40℃,don’t expose the TV to the
strong sunlight, the humidity should be less than 85％RH.
(2)Please don’t put your TV under high humidity and high temperature environment, for example, the
temperature: 60℃, and the humidity: 85%RH.
(3)Please don’t put your TV under low temperature environment, for example, the temperature lower than
-25℃.
1-4 Dismantling notes
(1)As LED screen is easy to be damaged, while dismantle, please attention to protect.
(2)Please attention the position of each screw when dismantle, in case to beat the wrong position when
install, if not, it may lead to crack or slide of the face frame.
(3) If you need to dismantle the power board or the mainboard, please attention the position and direction of
each line, especially the direction of the screen line, in case of causing accident when install. Before

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dismantle, we can take some photos of the line route for the comparison of installing.
(4)After check and maintenance, please assure that there is no foreign body in the machine when install.
1-5 High-voltage warning
The high-voltage of the LED screen is generated by the power supply board, without attention to exposure to
the high voltage, one may meet a serious electricity shock.
Chapter2 whole machine standard and terminal functions
2-1 Basic standard
Item
Standard
TV function
sound system
B/G、D/K、I
color system
PAL / SECAM
DTV function
DVB-T/T2
COFDM
DVB-C
16QAM,32QAM,64QAM,128QAM, 256QAM
DVB-S2
QPSK,8PSK
Video System
MPEG2 MP@ML, MPEG-2MP@MLh, H264, HEVC
Sound System
MPEG-1Layer 1/2, DD, DD+, AAC, HE-AAC
Audio and video
signal input
AV
AV x 1
Audio L/R x 1
HDMI
HDMI x3
support to1080P
USB
USB x1
support media player
Audio output
Audio output L / R
8W inner speakers for each channel
Support Dolby Pro Logic
SPDIF
Optical Fiber
Support Audio output
Power
power supply
AC100V~240V, 50/60Hz
requirement for environment
power achievement
<75W
operation temperature
storage temperature
operation humidity
+ 0° ~ + 40° ，
- 20 ° ~ + 60°
10% ~ 85%
appearance size
W x H x D
net weight
no accessory
Kg

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2-2 Introduction of terminals (practicality photos)
ATTENTION:
1.HDMI support to 1080P；
RF input
HDMI2 input
Audio output
Keypad IR input
Lvds output
USB2 input
Main Chip
CI input
Satellite input
SPDIF output
AV input
HDMI1 input
HDMI3 input
Backlight output
AC input

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Chapter3 Main chip functions and the introductions of power supply
3-1 Main IC and functions of HLS80JS
No.
Item no.
Model
Main function
1
UTO1
R842
Tuner input IF signal
Support PAL\NTSC\SECAM\DVB-T\DVB-T2\DVB-C
2
USO1
RDA5815M
Tuner input IF signal
Support DVB-S/DVB-S2
3
UM1
MSD3663LSA-005N
Video decoder, image processor, A/D and D/A conversion
4
UA1
OB6228UP
15W Stereo (BTL) Analog Input Audio Amplifier with
Power Limiter and DC Detect
5
UM2
GD25Q64CSIG
64 Mbit(8M x8bit), low voltage, Serial Flash memory
6
UE2
MP1657GTF-Z
12VS to 1.1V DC-DC/For COER
7
UE1
MP1657GTF-Z
12VS to 5VS DC-DC
8
UE4
LC1118CS8TRAD33
5VS to 3.3VS LDO/5VA to 3.3V_T LDO
9
UE3
LC1117CLTR15
5VA to 1.5V_DDR LDO/FOR DDR3
10
UZ1
RT5047GSP
LNB power

5
3-2 Pin function description of HLS80JS chip
3-2-1 MSD3663 recommended operating power conditons
UM2:Flash Memory
UM1: MSD3663
USO1
UE2:DC-DC
UE4:LDO
UTO1
UE3:DC-DC
UE1:DC-DC
UZ1:LNB
UA1: OB6228UP

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3-2-2 R842 brief introduction:

7
3-2-3 RDA5815M brief introduction:
3-2-4 GD25Q64CSIG brief introduction:
3-2-5 MP1657GTF-Z brief introduction:

8
3-2-6 LC1117CLTR15 brief introduction:
3-2-7 RT5047GSP brief introduction:
3-2-8 LC1118CS8TRAD33 brief introduction:

9
3-2-9 OB6228UP brief introduction:

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Chapter4 The chassis frame diagram, mainboard power supply systems,
mainboard interface definition
This chapter mainly introduce the chassis frame diagram, power supply system, interface definition
4-1 Power supply system
Power board has two kinds of output voltage: +12V
4-1-1 MSD3663 Power Block Diagram
4-1-2 Pin voltage of the voltage adjustor on the mainboard
item No.
UE1
UE2
UE3
UE4
QE1
QL1
CONP2
CONP3
output voltage
5VS
1.1V
1.5V
3.3V
5VA
VCC-panel
12VS
LED

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Chapter5 Software upgrade instructions
5-1 UART Upgrade
UART upgrade is very slow,about 10 minutes.if the main board is not dead,please do not use UART
upgrade.
URAT upgrade software tool is MSTV_Tool.
1.tools prepare:
A).USB cable
3.3V
5VS
GND
IR
LED
K0
GND
12VS
1.5V
R+
R-
L-
L+
LED
1.1V
LVDS
VCC-pane
5VS

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B).URAT tool
C).4-Pin Reverse Wire
D).VGA upgrade tool
2.UART upgrade
A).Copy the bin file upgrading to usb key root folder and then put USB key to main board USB terminal;
B).MSTV_Tool ->COM port ->COM port ->COM4

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C).power on the TV set,you will message in the blue window;
D).view -> direct command mode -> keypad emulator ->click “67”key

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E).When upgrade is finish the TV will auto power on.
5.2 USB Upgrade
(1)Power on TV set ,Copy the bin file upgrading to usb key root folder and then put USB key to main board USB terminal.

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(2)Press remote control key”MENU”,then choose option find software upgrade (USB),then press “ENTER”.
(3)Press remote control “ENTER”,it will ask you “are you sure?”choose yes and System auto loads the upgrade bin and
start upgrading,processing bar will be shown .During the upgrading the OSD will show like bellow;When upgrade is finish
the TV will auto power on.

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Chapter6: Classical accident maintenance procedures and examples
6-1 The thinking of don’t boot
The power is not connected.
6-2 Common problems for your reference
To speed you to dignose and solve problems, the following commom problems are offered for your
reference.
Symptoms
Possible Reason
Solutions
No picture, no sound, and no
indicator light on
1.The power cord is not plugged in
2.The power is off
1.Plug in the power cord
2.Turn the power on
abnormity Picture and sound with
1.Contrast, sharpness, and color are set
improperly
2.Color system is improperly
3.Sound system is improperly
1.Adjust the numberical value of
Contrast, sharpness, and color
2.Set the Color system to the country
broadcasting standard
3.Set the Sound system to meet the
country’s broadcasting standard
Picture is spotted or with snow
Signal source is low-grade or the signal
cord is in a lower quality
Use the qualified signal cord
No picture, no sound and indicator
light is green
Contrast, brightness, color and volume are
all in the minimum value or TV is in mute
mode.
Adjust the value of contrast,
brightness, color and volume
The signal cable is not correctly connected.
Connect the signal cable correctly
Blue screen, AV or SVIDEO is
displayed
There is no signal input or the video cable is
not connected or incorrectly connected
Connect the video cable correctly
No sound
There is no audio signal input or audio
cable is not connected correctly
Connect the audio cable correctly
VGA picture display with improper
color
The color temp is adjusted incorrectly by
user
Readjust the color temp, or select
the original color setting
HDMI source, with snow pixel of
full screen
The signal source is not normal
Plug the HDMI cable again
The remote control does not work
Batteries are improperly installed or
exhausted
1. Make sure the positive and the
negative polarities are correct.
2.Check if there is a loose contact
between the batteries and the springs
3.Replace the batteries

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Chapter7 Factory mode parameter setting instructions and notes
7-1 Enter into the factory mode
Switch on TV set, and make it works normally:
Press 【SOURCE】key on the remote control
Press number keys “3”、“1”、“3”、“8” on remote control to enter password. Finish entering the factory mode.
If you want to quit the factory mode, Please. press【EXIT】key to exit source.
⑴Factory menu displays as bellow：
The first menu
value
The second items
value
The third items
value
ADC ADJUST
MODE
RGB/Ypbpr(SD)/Ypbpr(HD)/S
CART
ADC Tune
Fail
R-GAIN
5159
G-GAIN
5192
B-GAIN
5206
R-OFFSET
0
G-OFFSET
0
B-OFFSET
0
Ypbpr Phase
0
Picture mode
Source
VGA/HDMI1/HDMI2/HDMI3/
SCART/DTV/ATV/AV/YPBPR
1
Picture mode
Home/vivid/standard/mild/user
Brightness
50
Contrast
100
Color
60
Sharpness
60
Tint
50
Copy all
White balance
Source
VGA/HDMI1/HDMI2/HDMI3/

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SCART/DTV/ATV/AV/YPBPR
1
TEMPERATURE
Medium/warm/user/cool/
R-GAIN
128
G-GAIN
118
B-GAIN
127
R-OFFSET
1024
G-OFFSET
1024
B-OFFSET
1025
Copy all
SSC
MIU enable
1
MIU
modulation(Khz)
25
MIU
percentage(%)
10
LVDS enable
1
LVDS
modulation(Khz)
35.0Khz
LVDS
percentage(%)
2.00%
Panel swing
250
SPECIAL SET
2HOUR OFF
Off/on
WDT
Off/on
WHITE
PATTERN
Off/on
GE/GOP
PATTERN
BMAP PATTERN
Restore factory