Sharp CX34L3, Service Manual

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CX34L3/51L3/51L4
WARNING
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power
receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user – serviceable
parts inside. Refer servicing to qualified service personnel.
SERVICE MANUAL
S30X7CX51K3//
In the interests of user-safety (Required by safety regulations in some countries) the set should be restored
to its original condition and only parts identical to those specified should be used.
MODELS
CX34L3
CX51L3
CX51L4
SHARP CORPORATION
COLOUR TELEVISION
Chassis No. GA-1
Page
CONTENTS
»
SPECIFICATIONS ............................................. 2
»
IMPORTANT SERVICE NOTES ........................ 2
»
ADJUSTMENT PRECAUTIONS ........................ 3
»
GA1 HOTEL MODE APPLICATION ................ 15
»
TROUBLE SHOOTING TABLE ....................... 16
»
SOLID STATE DEVICE BASE DIAGRAM ....... 18
»
WAVEFORMS .................................................. 19
»
CHASSIS LAYOUT .......................................... 21
»
BLOCK DIAGRAM ........................................... 24
»
DESCRIPTION OF SCHEMATIC DIAGRAM .. 29
»
SCHEMATIC DIAGRAM
Ë
MAIN UNIT ................................................... 30
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CRT UNIT ..................................................... 36
Page
Ë
HEADPHONE UNIT ..................................... 37
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BURST UNIT ................................................ 38
»
PRINTED WIRING BOARD ASSEMBLIES ..... 40
»
REPLACEMENT PARTS LIST
Ë
ELECTRICAL PARTS
MAIN UNIT ................................................... 47
CRT UNIT ..................................................... 51
HEADPHONE UNIT ..................................... 51
BURST UNIT ................................................ 51
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SUPPLIED ACCESSORIES ........................ 52
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PACKING PARTS ......................................... 52
Ë
CABINET PARTS ......................................... 52
FEATURE
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PAL B/G
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NTSC(AV Thru)
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Full Auto Channel Preset and Auto Channel Skip
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100 CH Program Memory
Ë
CATV (Hyper Band) Ready
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AVL (Sound Keeper) Function
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High Contrast Picture (Black Stretch Circuit)
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ON Timer/Sleep Timer/Reminder Timer
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Blue Back Noise Mute
Ë
Front AV In and Rear AV In/Out Terminals (Front AV
Priority)
Ë
Colour-Comb Filter (NTSC AV In)
Ë
Hotel Mode
Ë
Front Headphone Jack
Ë
Multi Laguage OSD (English/Chinese/French/
Arabic/Malay/Russian)
CX51L3
CX51L4
CX34L3
TENTATIVE