Hisense MT9603 UHD 4K Quad Core Smart TV LED Television Owner’s Manual

: June 21, 2024
: Hisense

Table of Contents

MT9603 UHD 4K Quad Core Smart TV LED Television
Product Specifications
Product Usage Instructions
1. Precautions and Notices
1.1 Warning
2. TV Boards
- 2.1 Main Board Layout
- 2.2 TV Boards Part List
3. Factory/Service OSD Menu and Adjustment
- 3.1 Remote Control
- 3.2 Factory OSD Menu
4. Software Upgrading
Q: Can I use third-party parts to service the TV?
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)

MT9603 UHD 4K Quad Core Smart TV LED Television

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Product Specifications

Product: LED Television
Model: Chassis MT9603
Manufacturer: Hisense Visual Technology Co. Ltd.
Version: V 1.0

Product Usage Instructions

1. Precautions and Notices

Before servicing the LCD TV, read the safety precautions in this
manual. Use only manufacturer-specified replacement parts when
servicing. Use of non-authorized parts will void the manufacturer’s
warranty.

1.1 Warning

Critical components with special safety characteristics are
identified with a reference number in the parts list. Use of
non-manufacturer recommended parts may create shock, fire, or other
hazards. Do not modify or alter the original design without written
permission from RCA. Hisense assumes no liability for any
unauthorized modifications. Service technicians assume all
liability.

2. TV Boards

This section provides information on the main board layout and
TV boards part list.

2.1 Main Board Layout

Details the layout of the main board for reference during
servicing.

2.2 TV Boards Part List

List of TV boards parts for identification and replacement
purposes.

This section covers remote control usage and factory OSD menu
adjustments.

3.1 Remote Control

Instructions on using the remote control for various
functions.

Information on accessing and adjusting settings in the factory
OSD menu.

4. Software Upgrading

Guidelines for software upgrading using USB or Novatek Tool.

4.1 USB Upgrade

Steps to upgrade software using a USB drive.

4.2 Novatek Tool Upgrading

Instructions for software upgrading via Novatek Tool.

Frequently Asked Questions (FAQ)

Q: Can I use third-party parts to service the TV?

A: It is recommended to use only manufacturer-specified
replacement parts to avoid voiding the warranty and potential
hazards.

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LED Television Service Manual
Chassis MT9603
Version: V 1.0 Hisense Visual Technology Co.Ltd.

Version

REVISION HISTORY

Revise content

Reviser

Date

V1.00

First issued

Zhangxue 2023-10-16

– 2 –

Contents
Contents…………………………………………………………………………………………………………………………………………………..- 3 Service Manual ………………………………………………………………………………………………………………………………………..- 4 –
1. Precautions and notices…………………………………………………………………………………………………………………….- 4 1.1 Warning…………………………………………………………………………………………………………………………………- 5 1.2 Notes…………………………………………………………………………………………………………………………………….- 7 –
2. TV boards: ……………………………………………………………………………………………………………………………………- 10 2.1 Main board layout…………………………………………………………………………………………………………………- 10 2.2 TV boards part list ………………………………………………………………………………………………………………..- 15 –
3. Factory/Service OSD Menu and Adjustment……………………………………………………………………………………..- 17 3.1 Remote Control…………………………………………………………………………………………………………………….- 17 3.2 Factory OSD Menu……………………………………………………………………………………………………………….- 20 –
4. Software Upgrading……………………………………………………………………………………………………………………….- 26 4.1 USB Upgrade……………………………………………………………………………………………………………………….- 26 4.2 Novatek Tool upgrading ………………………………………………………………………………………………………..- 27 –
5. Trouble shooting ……………………………………………………………………………………………………………………………- 30 5.1 Troubleshooting for Remote Control ……………………………………………………………………………………….- 30 5.2 Troubleshooting for Function Key…………………………………………………………………………………………..- 31 5.3 TV won’t Power On………………………………………………………………………………………………………………- 32 5.4 Troubleshooting for Audio……………………………………………………………………………………………………..- 33 5.5 Troubleshooting for TV/VGA/HDMI input………………………………………………………………………………- 34 5.6 Troubleshooting for YPbPr input…………………………………………………………… Erreur ! Signet non défini. 5.7 Troubleshooting for Video input……………………………………………………………………………………………..- 35 –
6. Signals Block Diagram & power assign & schematic diagram …………………………………………………………….- 36 –
– 3 –

Service Manual
1. Precautions and notices
BEFORE SERVICING THE LCD TV, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. USE ONLY MANUFACTURER SPECIFIED REPLACEMENT PARTS WHEN SERVICING. USE OF NON- AUTHORIZED PARTS WILL VOID THE MANUFACTURE’S WARRANTY
Proper service and repair is important to the safe, reliable operation of all Hisense Equipment. The service procedures recommended by Hisense and described in this Service Guide are effective methods of performing service operations. Some of these service operations require the use of tools specially designed for the purpose. The special tools should be used when and as recommended. It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment and pose risk of personal injury . It is also important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Service should only be performed by an experienced electronics
– 4 –

techician trained in the proper Television safety and service methods and procedures Hereafter throughout this manual.
1.1 Warning
1.1.1 Critical components having special safety characteristics are identified with a by the Ref. No. in the parts list. Use of non-manufacturer’s recommended parts may create shock, fire, or other hazards. Under no circumstances should the original design be modified or altered without written permission from RCA. Hisense Eassumes no liability, express or implied, arising out of any unauthorized modification of design. Servicetech assumes all liability.
1.1.2. All ICs and many other semiconductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, be sure to use anti-static table mats and properly use a grounding wrist stra. Keep components and tools also at this same potential. IMPORTANT: Always disconnect the power cord from AC outlet before replacing parts or modules. 1.1.3 To prevent electrical shock, use only a properly grounded 3 prong outlet or extension cord.
– 5 –

1.1.4 When replacement parts are required, be sure to use replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards and will void the manufacturer’s warranty. 1.1.5 Safety regulations require that after a repair the set must be returned in its original condition. In addition, prior to closing set, check that: -Note: >All wire harnesses and flex cables are properly routed and secured with factory tape and/or mounted cable clamps. > All cables and connectors are properly insulated and do not have any bare wires/lead exposed
1.1.6 (1) Do not supply a voltage higher than that specified to this product. This may
damage the product and may cause a fire. (2) Do not use this product:

High humidity areas > In an area where any water could enter or splash into the unit. High humidity and water could damage the product and cause fire.
– 6 –

(3) If a foreign substance (such as water, metal, or liquid) gets inside the panel module, immediately turn off the power. Continuing to use the product may cause fire or electric shock. (4) If the product emits smoke, and abnormal smell, or makes an abnormal sound, immediately turn off the power. Continuing to use the product, it may cause fire or electric shock.
(5) Do not pull out or insert the power cable from/to an outlet with wet hands. It may cause electric shock. (6) Do not damage or modify the power cable. It may cause fire or electric shock. (7) If the power cable is damaged, or if the connector is loose, do not use the product: otherwise, this can lead to fire or electric shock. (8) If the power connector or the connector of the power cable becomes dirty or dusty, wipe it with a dry cloth. Otherwise, this can lead to fire. (9) Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over
1.2 Notes
Notes on Safe Handling of the LCD panel and during service The work procedures shown with the Note indication are important for ensuring the safety of the product and the servicing work. Be sure to follow these instructions. · Before starting the work, secure a sufficient working space.
– 7 –

· At all times other than when adjusting and checking the product, be sure to turn OFF the POWER Button and disconnect the power cable from the power source of the TV during servicing. · To prevent electric shock and breakage of PC board, start the servicing work at least 30 seconds after the main power has been turned off. Especially when installing and removing the power board, start servicing at least 2 minutes after the main power has been turned off. · While the main power is on, do not touch any parts or circuits other than the ones specified. If any connection other than the one specified is made between the measuring equipment and the high voltage power supply block, it can result in electric shock or may trip the main circuit breaker When installing the LCD module in, and removing it from the packing carton, be sure to have at least two persons perform the work. · When the surface of the panel comes into contact with the cushioning materials, be sure to confirm that there is no foreign matter on top of the cushioning materials before the surface of the panel comes into contact with the cushioning materials. Failure to observe this precaution may result in, the surface of the panel being scratched by foreign matter. · Be sure to handle the circuit board by holding the large parts as the heat sink or transformer. Failure to observe this precaution may result in the occurrence of an abnormality in the soldered areas. · Do not stack the circuit boards. Failure to observe this precaution may result in
– 8 –

problems resulting from scratches on the parts, the deformation of parts, and short-circuits due to residual electric charge. · Perform a safety check when servicing is completed. Verify that the peripherals of the serviced points have not undergone any deterioration during servicing. Also verify that the screws, parts and cables removed for servicing purposes have all been returned to their proper locations in accordance with the original setup.
The lightning flash with arrowhead symbol, within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock.
The exclamation point within an equilateral triangle is intended to alert the service personnel to important safety information in the service literature. .
– 9 –

2. TV boards: 2.1 Main board layout
2.1.1 The top of main board (RSAG7.820.10588/ROH)
– 10 –

– 11 –

2.2 Wiring diagram( example for 55E70LEVS):

XP2 Power for main board jacket

Main board terminal

definition

1

IR_IN

2

GND

3

LED

4

3.3V_SENSOR2

5

3.3Vstb

6

SCL

7

SDA

8

KEY1

9

GND

Power board terminal

definition

1

IR_IN

2

GND

3

LED-1

4

3.3V

5

3.3Vstb

6

SCLR

7

SDA

8

KEY0

9

GND

– 12 –

10

LED_OFF

10

LED_2

11

GND

XP1268pin P2P jacket

Main board terminal jacket definition

Definition

illustration

1

CTRL7

Control pin

2

CTRL6

Control pin

3

CTRL5

Control pin

4

CTRL4

Control pin

5

CTRL3

Control pin

6

CTRL2

Control pin

7

CTRL1

Control pin

8

GND

Ground

9

X0B_0P

10

X0B_0N

11

GND

Ground

12

X0B_1P

13

X0B_1N

14

GND

Ground

15

X0B_2P

16

X0B_2N

17

GND

Ground

18

X0B_3P

19

X0B_3N

20

GND

Ground

21

X0B_4P

22

X0B_4N

23

GND

Ground

24

X0B_5P

25

X0B_5N

26

GND

Ground

27

X0B_6P

28

X0B_6N

29

GND

Ground

30

X0B_7P

31

X0B_7N

32

GND

Ground

Panel terminal jacket definition
Pin definition 68 NC 67 NC 66 NC 65 TEND 64 VCE 63 LC 62 YDIO1 61 GND 60 P2P1P 59 P2P1N 58 GND 57 P2P2P 56 P2P2N 55 GND 54 P2P3P 53 P2P3N 52 GND 51 P2P4P 50 P2P4N 49 GND 48 P2P5P 47 P2P5N 46 GND 45 P2P6P 44 P2P6N 43 GND 42 P2P7P 41 P2P7N 40 GND 39 P2P8P 38 P2P8N 37 GND

– 13 –

33

X0B_8P

36 P2P9P

34

X0B_8N

35 P2P9N

35

GND

Ground

34 GND

36

X0B_9P

33 P2P10P

37

X0B_9N

32 P2P10N

38

GND

Ground

31 GND

39

X0B_10P

30 P2P11P

40

X0B_10N

29 P2P11N

41

GND

Ground

28 GND

42

X0B_11P

27 P2P12P

43

X0B_11N

26 P2P12N

44

GND

Ground

25 GND

45

P2P_LOCK

24 P2P_LOCK

46

GND

Ground

23 GND

47

MSPI1_MIS LDC_DATA_I

22 NC

O

48

MSPI1_MO LDC_DATA_O

21 NC

SI

49

MSPI1_SCK LDC_CLK

20 NC

50

MSPI1_SCZ DENURA_CS

19 NC

51

GND

Ground

18 GND

52

T_nWR

Write protect

17 nWR

53

T_SCL

I2C CLK

16 SCL

54

T_SDA

I2C DATA

15 SDA

55

GND

Ground

14 GND

56

GND

Ground

13 GND

57

GND

Ground

12 GND

58

GND

Ground

11 GND

59

GND

Ground

10 GND

60

NC

9

NC

61

12V_PANEL Power Supply Input 8

VCC_PANEL

Voltage

62

12V_PANEL Power Supply Input 7

VCC_PANEL

Voltage

63

12V_PANEL Power Supply Input 6

VCC_PANEL

Voltage

64

12V_PANEL Power Supply Input 5

VCC_PANEL

Voltage

65

12V_PANEL Power Supply Input 4

VCC_PANEL

Voltage

66

12V_PANEL Power Supply Input 3

VCC_PANEL

Voltage

– 14 –

67

12V_PANEL Power Supply Input 2

VCC_PANEL

Voltage

68

12V_PANEL Power Supply Input 1

VCC_PANEL

Voltage

XP9Speaker jacket

definition illustration

Wire color

1

L+

Left speaker positive wire

Red

2

L-

Left speaker negative wire

White

3

R-

right speaker negative wire White

4

R+

Right speaker positive wire Black

2.3 Ties,clamps and tapes:
to show the positions where ties and clamps and tapes should be, for checking after servicing, Before disassemble the TV ,besure to take photes for the TV assembly example for 55E70LEVS.

2.2 TV boards part list

Main board

Boards function difference

Main chassis type

For Series

– 15 –

RSAG2.908.1369601

1. Lateral terminal and vertical terminal. 2. TCON part on the board.

MT9603

55E70LEVS

– 16 –

3. Factory/Service OSD Menu and Adjustment 3.1 Remote Control
– 17 –

– 18 –

– 19 –

3.2 Factory OSD Menu
figure -1
– 20 –

Factory OSD menu list: if you want to learn more about TV, you’d better read it but would not adjust the value please. The Factory menu may be have difference for diverse market and customer. Take HE55A7000EUWTS for example.
Options:
Write keys:
– 21 –

Note: Check whether the Key information under the current Version is OK, if appears “NG” or such as following
red surround irregular information then need rewrite the key.
– 22 –

Factory menu White Balance
channel init Option Clear all Soft version Version
Menu
MAC Adr
HDCP2.2 key ESN
WIDEVINE key Service No.

Description White Balance data adjusting, different source has different WB values. Before adjusting, please change to desired source.

Remark

TV Produce signal preset, during the factory produce using. Items can choose
initial the TVEEPROM reset current software version information

Software Version information

MAC address information

HDCP2.2 key information The TV’s electronic Serial number

WIDEVINE key code LTDNXXXXXXY-P0001

– 23 –

Channel init

huangdao old Qing Dao
huangdao new ……

TV Produce signal preset, during the factory produce using.

– 24 –

Option

ToFAC M/U

“M” used in factory product. “U” used in user state.

LNB power

13/14;18/19;Power off

Region country Logo Language
VCOM

North America Country choose Customer logo choose Language choose Panel voltage,

UART PQ COM CI+

On/off (when choose “on” then can serial port connect with Tool successfully) On/off

MAC

If MAC key code lost, you can write.

Write keys

HDCP2.2

If HDCP key code lost, you can write .

Netflix Widevine

If Netflix key code lost, you can write . If Widevine key code lost, you can write .

Note:
The Factory menu may be have difference for diverse market and customer, above Factory menu only for reference.
The factory menu data varies according to different sources. Incase changing the factory data by error, you can choose to “Clear all”, by which you can resume the default value. To clean the EEPROM: a. Select the item “Option”–“Clear all” in Factory mode.

b. Press button to clear the EEPROM data.

– 25 –

c. Close the OSD menu after 5 seconds. d. Restart the TV. e Also the Keys information must been checked, if appear “NG”, then must rewrite key code.
4. Software Upgrading
4.1 USB Upgrade
Main software upgrade directly with USB
The main software can be upgraded with USB disk. It includes two modes: user mode factory mode. Take 50A683FEvS for example. 4.1.1 TV in user mode
a. Decompress NOVATEK_DEV_EU_pkg_YYYYMMDD.tar.gz (YYYYMMDD is the year/month/day when the software is being built, such as NOVATEK_DEV_EU_pkg_20201130.tar.gz) and copy usb_NOVATEK_DEV_EU.bin file to the USB root directory. Please make sure the USB disk format is Fat32 and there are no other “*.bin” files in the root directory of USB disk .
b. AC power off the TV, insert the USB disk to the USB 2.0 port, TV in standby status,next long press the “power key . If “Loading data……” is shown on TV, it means TV successfully enters upgrading status..
c. Waiting TV is trying to load the software and it will spend about 2 minutes. After that “UPGRADING SOFTWARE, PLEASE DO NOT TURN OFF” will be displayed and upgrade process bar will indicate the progress. It needs about s5 minutes to complete the whole software upgrade.
d. After upgrade, TV can automatically reboot.
e. Enter the Factory OSD Menu to check the main software version, and then choose “option””Clear All” to do
clean up.
4.1.2 TV in factory mode
a. If TV is in Factory mode, only have difference from chapter 4.1.1 b. as following. others are same. b. TV is in factory mode, only AC power off TV and insert the USB disk, next AC power on, TV can identify
automatically to update, till call up “Loading data……” interface , update process bar is 1%.
4.1.3 If the above USB upgrade methods fail, you can rename the upgrade software to
usb_NOVATEK_DEV_EU.bin,next use serical “cu” to update
4.1.4 When upgrade successfully, We must ensure the TV mode of running correctly.
Paths: Factory—Design Project ID Once choose another TV mode ,must AC power off and power on the TV to reboot.
– 26 –

Firgure-1: Upgrading software
Firgure-1 4.2 Novatek Tool upgrading
If USB upgrades failure, TV crashed and SecureCRT no print message. Repairer must read IC device ID code decipher& burn the Mboot program the EMMC flash first. then USB disk to upgrade the “usb_NOVATEK_DEV_EU.bin”file.
– 27 –

Hardware connecting Connect the unit to your pc with Hisense USB-serial port cable. USB port connects to your PC and
earphone port to TV’s service debug. As following.
4.2.1 Open the UART serial option UAR serial choose “on ” Menu: Factory–>Options>UART>on
If finish the updating and data adjust UART serial, UART choose “off ”
– 28 –

4.2.2 Novatek USB-serial driver It’s the same as Mstar bebug Tool. If First use Mstar bebug Tool, you have to install drive software for bebug board. If your PC is Windows XP system: First install FTCUNIN.EXE of FTC100103(MSTAR) rar file in your PC. This is a drive software of Mstar
Another: If your PC is Win7 system, you will have to install CDM20802_Setup_WIN7 rar fileand then open the software of SecureCRT in your PC. 4.2.3 Stop board serial connect with SecureCRT Run SecureCRT,printing information includes three status:MbootSupernovano print information. Current steps: 1) Run SecureCRT.exe 2) TV power on. 3) SecureCR tool print information can appear or not.
How to distribute the three status?

appearing “N62020_A32_SEC>” that meaning is in Mboot status; 2) Rolling many informmation automatically that meaning is in Supernova status; 3) No any print information that meaning the eMMC of board is no program. Stop board serial with SecureCRT 1) In mboot status:
N62020_A32_SEC>
Input “shift” and “~” key to ensure, then close the SecureCRT window. 2) If no any print information with SecureCRT,then can directly close the SecureCRT window.
– 29 –

5. Trouble shooting 5.1 Troubleshooting for Remote Control

Remote control does not work
Try new batteries
NO
Replace RC Check IR receiver

YES YES

Replace battery Replace remote control

Change Led & IR board
NO
Change Led & IR cable
NO
Replace main board

YES

Replace Led & IR BD

YES

Replace Led & IR cable

– 30 –

5.2 Troubleshooting for Function Key

Buttons does not work