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SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
LCD TV
September 2007
YK
No.055E
L37X01A
L42X01A
SERVICE MANUAL
Be sure to read this manual before servicing. To ensure safety from
fi
re, electric shock, injury, harmful
radiation and materials, various measures are provided in this LCD TV.
Be sure to read cautionary items described in the manual before servicing.
These servicing instructions are for use by quali
fi
ed service personnel only. To reduce the risk of electric
shock, do not perform any servicing other than that described in the operating instructions unless you
are quali
fi
ed to do so.
Caution
1. Since the Panel Module and the front Filter are made of glass, handling the broken Module and Filter
carefully and with caution in order not to receive injury.
2. Replacement work should be started after the Panel Module and the AC/DC Power supply have
become suf
fi
ciently cool.
3. Special care should be taken when working near the display area in order not to damage its surface.
4. The Panel Module should not be touched with bare hands in order to protect its surface from
blemishes and damage.
5. It is recommended that you use clean soft gloves during the replacement work in order to protect not
only the display area of the Panel Module but also yourself.
Service Warning
L37X01A : The LCD panel made from IPS-Alpha is used for this product.
L42X01A : The LCD panel made from LPL is used for this product.
1.Features ······················································· 3
2.Speci
fi
cations ··············································· 4
3.Component names ······································· 7
4.Service points ·············································· 10
5.Adjustment ·················································· 11
6.Troubleshooting ·········································· 17
7.Hotel Menu Operation ································· 20
8.Block Diagram ··········································· 23
9.Connection Diagram ································· 26
10.Wiring Diagram ·········································· 27
11.Printed Wiring Board Diagram ··················· 29
12.Disassembly Diagram ······························· 38
13.Replacement Parts List ····························· 45
Contents
Summary of Contents for L37X01A
Page 18: ...Change to new power board P N PK101V0410I L37X01A L42X01A 18 ...
Page 19: ...Change to new power board P N PK101V0410I L37X01A L42X01A 19 ...
Page 23: ...8 Block Diagram L37X01A L42X01A 23 ...
Page 24: ...POWER BOARD L42X01A L37X01A L42X01A 24 ...
Page 25: ...L37X01A L37X01A L42X01A 25 ...
Page 26: ...9 Connection Diagram L37X01A L42X01A 26 ...
Page 27: ...10 Wiring Diagram L42X01A L37X01A L42X01A 27 ...
Page 28: ...L37X01A L37X01A L42X01A 28 ...
Page 29: ...11 Printed Wiring Board Diagram L42X01A TOP SIDE L37X01A L42X01A 29 ...
Page 30: ...BOTTOM SIDE L37X01A L42X01A 30 ...
Page 31: ...L37X01A TOP L37X01A L42X01A 31 ...
Page 32: ...BOTTOM L37X01A L42X01A 32 ...
Page 33: ...POWER MODULE L42X01A L37X01A L42X01A 33 ...
Page 34: ...POWER MODULE L37X01A L37X01A L42X01A 34 ...
Page 35: ...PCBA KEY B L42X01A TOP SIDE BOTTOM SIDE L37X01A TOP SIDE BOTTOM SIDE L37X01A L42X01A 35 ...
Page 37: ...PCBA SIDE HDMI L42X01A L37X01A TOP SIDE BOTTOM SIDE L37X01A L42X01A 37 ...
Page 38: ...12 Disassembly Diagram L42X01A L37X01A L42X01A 38 ...
Page 39: ...L37X01A L42X01A 39 ...
Page 40: ...L37X01A L37X01A L42X01A 40 ...
Page 41: ...L42X01A CO 20 31 34 29 33 28 32 34 26 30 23 CO 35 25 27 36 L37X01A L42X01A 41 ...
Page 42: ...L42X01A NA 20 31 34 29 33 28 32 34 26 30 24 NA 35 25 27 36 L37X01A L42X01A 42 ...
Page 43: ...L37X01A CO L37X01A L42X01A 43 ...
Page 44: ...L37X01A NA L37X01A L42X01A 44 ...
Page 47: ...MEMO L37X01A L42X01A 47 ...