Sharp VT-3418X - User Manual

N.S.W.
W-341 8X
VT-5118X
SERVICE MANUAL
VT-341 8X
S94D8VT3418Xi
i==T=D
TV/VCR COMBINATION
TELEVIDEO
Chassis No. VP- 7
VT-341 8X
VT-51 18X
MODELS VT-51 18X
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
H High Speed Video Search System
n On Screen Digital Channel/Sound Level/
l PAUSECAM: 7 times
Tuning Display, Control (Contrast, Colour,
Brightness, Tint, P-Tone) Symbol and Level
H Blue Back Off Timer
n 40 Key, Wireless Remote Control Unit
n Channel Skip
H Dew Warning Indicator
W DPSS (Digital Program Search System)
l NTSC: 5 times(SP), 15 times (EP)
w Quick Start Playback with Full Loading System
n Still/Slow Function with Noiseless Frame Still
n Digital Automatic Tracking Control
n Automatic Playback Function
n AHC (Automatic Head Cleaning System)
I
CONTENTS
Page Page
.
SPECIFICATIONS
........................
2
l OVERALL SCHEMATIC DIAGRAM
........
65
l IMPORTANT SERVICE NOTES
.............
3
l CHASSIS LAYOUT OF TV SECTION
....... 69
l LOCATION OF USER’S CONTROL
......... 4
l BLOCK DIAGRAM OF TV SECTION
....... 73
. DISASSEMBLY AND REASSEMBLY
........ 7 . DESCRIPTION OF TV SECTION
. ADJUSTMENT OF THE
SCHEMATIC DIAGRAM
....... .: ..... 82
TV ELECTRICAL CIRCUITRY
...........
8
. CHASSIS LAYOUT OF VCR SECTION
......
99
. FUNCTION OF MAJOR MECHANICAL PARTS
14
. BLOCK DIAGRAM OF VCR SECTION
..... 101
*
. ADJUSTMENT, REPLACEMENTAND
. DESCRIPTION OF VCR SECTION
ASSEMBLY OF MECHANICAL UNITS
..
16
SCHEMATIC DIAGRAM
............. 111
. ADJUSTMENT OF THE
. PRINTED WIRING BOARD ASSEMBLIES . .
119
VCR ELECTRICAL CIRCUITRY
......... 41
. REPLACEMENT PARTS LIST
............ 129
. TROUBLESHOOTING
...................
47
. PACKING OFTHESET
.................
167
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 -
qualified service personnel.
serviceable parts inside. Refer servicing to
SHARP CORPORATION

Sharp VT-3418X Specifications