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HLS78D-I
Philco HLS78D-I User Manual
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LED COLOUR
TV
MAINTENANCE MANUAL
MODEL: H
LS
78
D-I
CHASSIS
（
M
SD6486
）
(take PCB for example:JUC7.820
. 001
92431-1)
Please r
ead
t
his manual c
ar
efully befor
e maintenan
ce
2
Table of Contents
Default Chapter
2
Table of Contents
2
Chapter1 Safety And Notes
3
Installation Notes
3
Attention Points of Operation and Using
3
Storage Notes
3
Dismantling Notes
3
High-Voltage Warning
4
Chapter2 Whole Machine Standard and Terminal Functions
4
Basic Standard
4
Introduction of Terminals(Practicality Photos)
5
Chapter3 Main Chip Functions and the Introductions of Power Supply
5
Main IC and Functions of HLS78D-I
5
Pin Function Description of HLS78D-I Chip and Description of Power Supply
6
MSD6486 Recommended Operating Power Conditions
6
Pin Function of R842
7
MT29F4G08ABADAWP:D NAND Flash/4Gbit Brief Introduction
8
RT9108 Brief Introduction
9
AMS1117-3.3 Brief Introduction
10
NCP1251A Current-Mode Pwmcontroller for Off-Linepower Supplies Brief Introduction
10
PF7911 High Voltage Boostcontroller Brief Introduction
10
TPS563201 Brief Introduction
11
SY8088 Brief Introduction
11
MP2225GJ Brief Introduction
12
Brief Introduction of Power Supply
13
Chapter4 MSD6486 Power Block Diagram, Main Board Power Supply Systems, Main Board Interface Definition and the Waveform of Key Points
13
MSD6486 Power Block Diagram
14
Power Supply System
14
Pin Voltage of the Voltage Adjuster on the Main Board
14
Interface Definition
15
Chapter5 Software Upgrade Instructions
15
Software Upgrade Method：use a U Disk Including the Upgrade Program Directly Upgrade
15
Chapter6: Classical Accident Maintenance Procedures and Examples
16
The Thinking of Don't Boot
16
Common Problems for Your Reference
16
Trouble Shooting
17
Chapter7 Factory Mode Parameter Setting Instructions and Notes
24
Enter into the Factory Mode
24
The List of Factory Mode as Follow：(Only for Reference)
24
Chapter8 Instructions Of HLS78D-I Module Circuit Schematic Diagram
26
Appendix：circuit Schematic Diagram
27
4
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Philco HLS78D-I Specifications
General
Display Technology
LED
Screen Size
32 inches
HDMI Ports
2
USB Ports
1
Sound Output
10W
Resolution
1366 x 768
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