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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.
Model Name: SV42LMUB
Model No.: HSG1132
42”W Color LED TV
Service Manual
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Document No. LF100-000210 Revision 1.0
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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.
Copyright
Copyright © 2006 by HannStar Corporation. All rights reserved. No part of this publication
may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any
language or computer language, in any form or by any means, electronic, mechanical, magnetic,
optical, chemical, manual or otherwise, without the prior written permission of HannStar
Corporation.
Disclaimer
HannStar makes no representations or warranties, either expressed or implied, with respect to
the contents hereof and specifically disclaims any warranty of merchantability or fitness for any
particular purpose. Further, HannStar reserves the right to revise this publication and to make
changes from time to time in the contents hereof without obligation of HannStar to notify any
person of such revision or changes.
Trademarks
HannStar is a registered trademark of HannStar Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Revision SM Editing Date ECR Number Description of Changes Editor
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Document No. LF100-000210 Revision 1.0
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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.
TABLE OF CONTENTS
1. Precautions and Safety Notices 4
2. Product Specification 6
3. Front Panel Function Control Description 8
4. Disassembly Procedure 12
5. Adjustment Procedure 20
6. Troubleshooting Flow Chart 39
7. Exploded Diagram and Exploded Parts List 54
8. Block Diagram 56
9. Schematic Diagrams 57
10. PCB Layout Diagrams 79
11. Firmware Update SOP 86
12. FAQ 88
13. EDID Text 91
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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.
1. Precautions and Safety Notices
1.1 Safety Precautions
Installation Safety Notes: Avoid allowing the TV to get prolonged exposure to sunlight or other
strong sources of heat. Leave sufficient distance between the TV and the wall to provide enough
spare space for the emission of heat.
Warning: To reduce the risk of fire or electric shock, do not expose this apparatus to rain or
moisture. Apparatus shall not be exposed to dripping or splashing and no objects filled with
liquids, such as vases, shall be placed on the apparatus.
Caution: These serving instructions are for use by qualified service personnel only. To reduce the
risk of electric shock, do not perform any servicing other than that contained in the operating
instructions unless you are qualified to do so.
Notes:
The LCD TV is for entertainment use only and visual display tasks are excluded.
This device uses a VGA connector to connect to a PC. To reduce the influence of main frequency
of the source signal, use a VGA monitor cable with ferrite shield.
1.2 Product Safety Notice
1. Read these instructions
2. Keep these instructions
3. Heed all warnings
4. Follow all instructions
5. Do not use this apparatus near water.
6. Clean only with dry cloth
7. Do not block any ventilation openings. Install in accordance with manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves, or other
apparatus (including amplifiers) that produce heat.
9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug
has two blades with one wider than the other. A grounding-type plug has two blades and a
third grounding prong. The wide blade or the third prong are provided for your safety. If the
provided plug does not fit into your outlet, consult an electrician for replacement of the
obsolete outlet.
10. Protect the power cord from being walked on or pinched, particularly at plugs, convenience
receptacles, and the point where they exist from the apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. use only with 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
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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.
to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus
has been damaged in any way, such as power- supply cord or plug is damaged, liquid has
been spilled or objects have fallen into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been dropped.
15. WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain
or moisture.
16. The apparatus shall be connected to a MAINS socket outlet with a protective earthing
connection.
17. Where the MAINS plug or an appliance coupler is used as disconnect device, the disconnect
device shall remain readily operable.
18. The apparatus should be used in moderate climate.
19. The apparatus shall not be exposed to dripping or splashing and that no objects filled with
liquids, such as vases, shall be placed on the apparatus.
1.3 Service Notes
When replacing parts or circuit boards, clamp the lead wires around terminals before
soldering.
Keep wires away from high voltage, high temperature components and sharp edges.
Keep wires in their original position so as to reduce interference.
Adjustment of this product please refers to the user’ manual.
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2. Product Specification
2.1 Front View & Back View
2.2 Physical Specification
2.2.1 Main Features
Features S
p
ecifications
Panel
Maximum Resolution 1920 x1080 (WUXGA)
Back Light System LED
Pixel Pitch 0.1615 (H) x 0.4845 (V)
Display Area 930.24 (H) x 523.26 (V), 42” diagonal
Panel Interface 4-CH LVDS
Brightness 450 cd/m2
(Typical)
Display Color 1.07G
Contrast Ratio 4000׃1 (Typical)
Response Time (Gray to Gray) 4.5ms (Typical)
Viewing Angle (H/V) Hor:176°,Ver:176° (Typical,CR≥10)
I/O Function
Input Interface
TV Tuner x1 (NTSC + ATSC + QAM)
HDMI x5
Component x2 (RCA Type)
PC Input x1 (VGA)
PC Line Input x1
AV x1 (RCA Type)
USB x1 (JPG/MP3/Movie)
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Output Interface
Earphone x1 (3.5mm phone jack, adjustable
volume)
Audio optical output x1
Power Supply
Compatibility AC 100V ~ 240V 50Hz / 60Hz
Audio
Speaker Watts 10W x 2; Woofer 15W x 1
Others
OSD language English/French/Spanish
Video Enhancement
3D De-interlacing, 3D Noise reduction, 3D Comb-filter,
3:2/2:2 Pull down
Aspect ratio Auto/Full/Normal/Subtilte/Zoom/Zoom1
Other Features
Touchpad, Melody, HDMI CEC, Favorite Channel, On/Off
Time, Sleep Time, 24P Cinema, Energy Star 4.0
2.2.2 Input / Output Signal Specifications
2.2.2.1. PC mode signal types
a.VGA : 15 pin D-sub ,0.7 Vp-p linear, positive polarity & separate sync.
( TTL level, positive or negative polarity)/ 75Ω terminated
b.VGA audio : 3.5mm stereo mini-jack
Level: -Nominal : 0.5 V rms.
- Maximum : 2 V rms.
- Impedance > 10 k.
c.HDMI : HDMI connector, Single TMDS link according to DVI 1.0 specification with
High-Definition Content Protection (HDCP) Specification 1.10
d.HDMI audio : VGA 3.5mm Audio Input Alternative
2.2.2.2 Video mode signal types
RF Signal : Aerial input / 10mV(typical: 80dBuV)/ 75Ω terminated unbalance (F type jack)
Video signal : CVBS input ( RCA jack) / 1Vpp (300mV-sync, 700mV-video.)/ 75Ω terminated
Component input/ 1Vpp Y signal, +/-350mV Pb,Pr signal/ 75Ω terminate
HDMI input / High Definition Multimedia interface 1.3a (pass CTS 1.3a
test) with CEC & HDCP, audio included (meet EIA-861D standard).
Audio signal : R/L for AV and Component IN (AV、S-Video and Component).
Level: - Nominal : 0.5 V rms.
- Maximum : 2 V rms.
- Impedance > 10 k.
2.2.2.3 Main Speaker : Speaker output : 2 x 10 Wrms(±0.5dB), and T.H.D. ≤ 10%.
Woofer output : 10W x 2 @1KHz (8 Ohms),15W x 1 Woofer
2.2.2.4 Headphone : Audio : R/L output 135 mV +/- 10% (±3dB) at 32 ohm.
3.5mm stereo jack with switch
Impedance is between 8 and 600 ohm .
2.2.2.5 USB :
A type.
Support JPEG , MP3, Movie format.
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Parameter Min. Typ. Max. Unit
Supply Voltage +4.75 +5.0 +5.25 V
Output Current 500 mA
2.2.2.6 IF Input / Output Placement
2.2.3 Panel SPEC
Supplier INL
Model name
V420 H1-LE1
Display Area 937.24(H) x 530.26(V)
Pixel Pitch 0.1615(H) x 0.4845(V)
Number of Pixel 1920 x R.G.B. x 1080
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Brightness 450 cd/m² (Typ)
Contrast Ratio Typical: 4000:1
Viewing Angle Hor: 88°, Ver: 88° (Typical, CR>=20)
Color Saturation (72%) (Typ.)
Frame rate 120Hz
Response Time(Tr+Tf) 4.5 ms (Typical)
Surface Treatment Anti-Glare, Haze=25%, Hard coating (3H)
Backlight LED
Brightness uniformity 0.71(Min.) 1.4 (Max)
Weight (g) 8600g
RoHS RoHS
2.2.4 Optical characteristic of LCD panel
Item Symbol Conditions Min. Typ. Max. Remark
Red X 0.645
Red Y 0.335
Green X 0.302
Green Y 0.624
Blue X 0.142
Color
Chromaticity(CIE)
Blue Y 0.064
White X 0.313
Color Coordinates
(CIE) White
White Y
θ= 0∘
-0.03
0.329
+0.03
White Variation δW
0x=0°,0y=0°
viewing angle
at normal direction
- 0.8 1.4
Brightness
(Center)
Yl[cd/m
2
] 360 450 -
2.2.5 LVDS Output Connector
Pin NO. Symbol Description
1 GND GND
2 SIS_MS_SDA_A I2C data
3 SIS_MS_SCL_A I2C clock
4 GND GND
5 SIS_LVDSA_TX0_DP LVDS port A data 0+
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6 SIS_LVDSA_TX0_DN LVDS port A data 0-
7 GND GND
8 SIS_LVDSA_TX1_DP LVDS port A data 1+
9 SIS_LVDSA_TX1_DN LVDS port A data 1-
10 GND GND
11 SIS_LVDSA_TX2_DP LVDS port A data 2+
12 SIS_LVDSA_TX2_DN LVDS port A data 2-
13 GND GND
14 SIS_LVDSA_TX3_DP LVDS port A data 3+
15 SIS_LVDSA_TX3_DN LVDS port A data 3-
16 GND GND
17 SIS_LVDSA_TX4_DP LVDS port A data 4+
18 SIS_LVDSA_TX4_DN LVDS port A data 4-
19 GND GND
20 SIS_LVDSA_CLK_DP LVDS port A clock +
21 SIS_LVDSA_CLK_DN LVDS port A clock -
22 GND GND
23 SIS_LVDSB_CLK_DP LVDS port B clock +
24 SIS_LVDSB_CLK_DN LVDS port B clock -
25 GND GND
26 SIS_LVDSB_TX0_DP LVDS port B data 0+
27 SIS_LVDSB_TX0_DN LVDS port B data 0-
28 GND GND
29 SIS_LVDSB_TX1_DP LVDS port B data 1+
30 SIS_LVDSB_TX1_DN LVDS port B data 1-
31 GND GND
32 SIS_LVDSB_TX2_DP LVDS port B data 2+
33 SIS_LVDSB_TX2_DN LVDS port B data 2-
34 GND GND
35 SIS_LVDSB_TX3_DP LVDS port B data 3+
36 SIS_LVDSB_TX3_DN LVDS port B data 3-
37 GND GND
38 SIS_LVDSB_TX4_DP LVDS port B data 4+
39 SIS_LVDSB_TX4_DN LVDS port B data 4-
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40 GND GND
41 SEL_R (Reserve)
42 SELLVDS_R LVDS format select
43 ODSEL_R Panel over drive select
44 GND GND
45 GND GND
46 GND GND
47 GND GND
48 V_12_LCD Panel power
49 V_12_LCD Panel power
50 V_12_LCD Panel power
51 V_12_LCD Panel power
2.2.6 Panel Power Sequence
Pin
No.
Symbol Description
1 +24V Converter Power
2 +24V Converter Power
3 +24V Converter Power
4 +24V Converter Power
5 +24V Converter Power
6 GND Ground
7 GND Ground
8 GND Ground
9 GND Ground
10 GND Ground
11 STATUS Normal (3.3V), Abnormal (0V)
12 Brightness Backlight Brightness Control Signal
13 NA NA
14 Backlight On/off Backlight On/off Control Signal
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2.3 Support Timing
2.3.1VGA / HDMI (DVI)
For non-supported VGA/HDMI (DVI) timings, should display the black screen with
a text of “Unsupported Mode”. The criteria are shown as follows.
Horizontal Frequency (KHz) < 10 > 100
Vertical Frequency (Hz) < 40 > 90
Vertical Total Pixel < 100 > 1260
Resolution
(active dot)
Horizontal
Frequency (KHz)
Vertical
Frequency
(Hz)
Nominal Pixel
Clock (MHz)
640 x 480 @60Hz 31.469 59.941 25.175
640 x 480 @72Hz 37.861 72.809 31.500
640 x 480 @75Hz 37.500 75.000 31.500
800 x 600 @60Hz 37.879 60.317 40.000
800 x 600 @72Hz 48.077 72.188 50.000
800 x 600 @75Hz 46.875 75.000 49.500
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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.
832 x 624 @75Hz 49.722 74.546 57.280
1024 x 768 @60Hz 48.363 60.004 65.000
1024 x 768 @70Hz 56.476 70.069 75.000
1024 x 768 @75Hz 60.023 75.029 78.750
1152x864@75Hz 67.500 75.000 108.000
1152x870@75Hz 68.681 75.062 100.000
1280x1024@60Hz 63.981 60.020 108.000
1280x1024@75Hz 79.976 75.025 135.000
1360x768@60Hz 47.700 60.000 85.500
1440x900@60Hz 55.935 59.887 106.500
1440x900@75Hz 70.635 75.000 136.750
1680x1050@60Hz 65.290 59.954 146.250
1920x1080 Reduced 66.587 59.934 138.500
1920x1080@60Hz 67.500 60.000 148.500
640 x 350 @70Hz 31.469 70.086 25.175
2.3.2 YPbPr (Component)
Resolution
Pixel Clock
(MHz)
Hsync
(kHz)
Vsync
(Hz)
480i 720 x 480 13.5 15.73 60
480p 720 x 480 27 31.47 60
720p 1280 x 720 74.25 44.96 60
1080i 1920 x 1080 74.25 33.72 60
576i 1920 x 1080 148.5 67.5 60
576p 1920 x 1080 74.25 27 24
1080P 1920 x 1080 74.25 33.75 30
2.3.3 HDMI (Video Mode)
Resolution
Pixel Clock
(MHz)
Hsync
(kHz)
Vsync
(Hz)
480i 720 x 480 27.00 15.73 60
480p 720 x 480 27.00 31.47 60
720p 1280 x 720 74.25 44.96 60
1080i 1920 x 1080 74.25 33.72 60
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1080P 1920 x 1080 148.50 67.50 60
1080P 1920 x 1080 74.25 27 24
1080P 1920 x 1080 74.25 33.75 30
2.3.4 AV
Resolution Pixel Clock MHz Hsync KHz Vsync Hz
NTSC 480i 13.50 15.73 60
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3. Front Panel Function Control Description
3.1 Button Description & Function Instruction
User Control: 7 buttons at the side of the TV (from Down to Up).
Description Button Function
Power
Power button. Press to turn the TV on or
off.
Input Source INPUT Press to open the input source list.
Menu MENU Press to open the OSD menu.
Channel Select CH ▲
Press to increase the channel number or
move upward to the previous item on the
OSD menu.
Channel Select CH ▼
Press to decrease the channel number or
move downward to the next item on the
OSD menu.
Volume Adjust VOL ▲
Press to increase the channel number or
move upward to the previous item on the
OSD menu.
Volume Adjust VOL ▼
Press to decrease the channel number or
move downward to the next item on the
OSD menu.
3.2 Function of Remote Control Button
Remote Control Electrical Specifications
Custom Code and Key Code Format Definition
Transmission format: NEC 2Packet
Carrier Frequency: 37.9 kHz
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disclosed, distributed or reproduced in whole or in part without written permission of HannStar Display Corporation.
No. Key Function Description
1
Standby/ On
Switches the TV to on if the TV set is
standby. Switches the TV to standby if the
TV set is on.
2
Input Selects a connected device.
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3
Numeric
buttons
Selects a channel or setting.
Displays program information.
4
Last Returns to a previous channel.
5
Information Displays program information.
6
Menu Open/Close Main menu
7
Navigation and
OK
Use up/down/left/right key to navigate
menu and OK key to select.
8
DTV source display EPG guild
9
Return Return last layer OSD
10
Volume
up/down
Increases or decreases volume.
11
Channel
up/down
Switches to the next ot previous channel.
12
Mute Mutes sound output.
13
MTS
ATV Source:
Change TV sound to mono, stereo or SAP
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mode. (Multi Channel Television Sound)
DTV Source:
Change audio language
14
Favorite My favorite
15
Aspect Aspect ratio
16
Sleep Sleep function On/ Off and time setting
17
Closed caption Closed caption function control
18
N/A(DVD use)
19
N/A(DVD use)
20
Support Universal RC
3.3 Hot Key Function Instruction
Factory Mode: non-support hotkey.
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4. Disassembly Procedure
Step 1. Remove the Base Assy.
Remove the 4 screws, detach the base .
Step 2. Remove the REAR COVER Assy.
Remove the 25 screws，2 bolt，1 tune nut ，1 rubber washer and the power cable cover. Detach
the REAR COVER.
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Step 3. Remove the MEMC board ,IR board,woofer
Remove the 7 ACE tape,2 foil,16 screw.Disconnect all cable include power cable, Detach the
MEMC board ,IR board,woofer and Power cable holder.
Step 4. Remove the main chassis and speaker.
Remove the 8 screw. Detach main chassis and speaker.
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