Sharp VT-3418X Service Manual

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.
FEATURE
n
Full Auto Search Tuning System
n
On Screen Digital Channel/Sound Level/
Tuning Display, Control (Contrast, Colour,
Brightness, Tint, P-Tone) Symbol and Level
n
40 Key, Wireless Remote Control Unit
n
Channel Skip
. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . .
l IMPORTANT SERVICE NOTES . . . . . . . . . . . . .
l LOCATION OF USER'S CONTROL
. DISASSEMBLY AND REASSEMBLY . . . . . . . .
. ADJUSTMENT OF THE
TV ELECTRICAL CIRCUITRY
. FUNCTION OF MAJOR MECHANICAL PARTS
. ADJUSTMENT, REPLACEMENTAND
ASSEMBLY OF MECHANICAL UNITS
. ADJUSTMENT OF THE
VCR ELECTRICAL CIRCUITRY . . . . . . . . .
. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . .
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 -
qualified service personnel.
SERVICE MANUAL
TV/VCR COMBINATION
MODELS
CONTENTS
Page
2
3
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7
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8
14
. . 16
41
47
W A R N I N G
SHARP CORPORATION
Chassis No. VP- 7
l PAUSECAM: 7 times
l
n
Still/Slow Function with Noiseless Frame Still
n
Digital Automatic Tracking Control
n
Automatic Playback Function
n
l OVERALL SCHEMATIC DIAGRAM . . . . . . . .
l CHASSIS LAYOUT OF TV SECTION
l BLOCK DIAGRAM OF TV SECTION . . . . . . .
. DESCRIPTION OF TV SECTION
SCHEMATIC DIAGRAM . . . . . . . .: . . . . .
. CHASSIS LAYOUT OF VCR SECTION . . . . . .
. BLOCK DIAGRAM OF VCR SECTION . . . . .
. DESCRIPTION OF VCR SECTION
SCHEMATIC DIAGRAM . . . . . . . . . . . . .
. PRINTED WIRING BOARD ASSEMBLIES . .
. REPLACEMENT PARTS LIST
. PACKING OFTHESET
serviceable parts inside. Refer servicing to
Page
65
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73
82
99
101
111
119
. . . . . . . . . . . . 129
. . . . . . . . . . . . . . . . . 167