
SERVICE
MANUAL
TV/VCR COMBINATION
VIDEO TV
C h a s s i s N o .
MODELS
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.
FEATURES
TV/VCR Integration for Easy Operation
Single Built-in Tuner for Simple Operation
n
Timer Programme Setting by the On-Screen
Display
Auto Tracking Control
n
Auto Head Cleaning System
n
On-screen Display with Menu Screen Guidance
Wake-Up/Sleep Timer
n
Simple Playback
n
Child-Proof Lock
Lock Operation Mode
Lock the Power Off.
n
Index with
(Digital Programme Search
System)
n
Full Auto Play Function
n
Auto Repeat Playback
n
Front input terminals Audio/Video
CONTENTS
Page
l
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . .
2
l
IMPORTANT SERVICE NOTES . . . . . . . . . . . . .
3
. LOCATION OF USER’S CONTROL . . . . . . . . .
4
. DISASSEMBLY AND REASSEMBLY . . . . . . . .
6
. ADJUSTMENT OF THE TV ELECTRICAL .
CIRCUITRY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
. PRECAUTIONS IN REASSEMBLING . . . . . . .
15
. FUNCTION OF MAJOR
16
. ADJUSTMENT, REPLACEMENTAND
ASSEMBLY OF MECHANICAL PARTS
ADJUSTMENT OF THE VCR ELECTRICAL.. ..
18
.
CIRCUITRY . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42
. TROUBLESHOOTING . . . . . . . . . . . . . . . . . . .
45
Page
l
OVERALL SCHEMATIC DIAGRAM . . . . . . . .
57
l
CHASSIS LAYOUT OF TV SECTION . . . . . . .
59
. BLOCK DIAGRAM OF TV SECTION . . . . . . .
61
. DESCRIPTION OF TV SECTION
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . .
65
. CHASSIS LAYOUT OF VCR SECTION . . . . . .
79
l
BLOCK DIAGRAM OF
. . . . . .
81
. DESCRIPTION OF VCR SECTION
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . .
91
. PRINTED WIRING BOARD ASSEMBLIES . . .
97
.
PARTS LIST
. . . . . . . . . . . .
105
.
. . . . . . . . . . . . . . . . .
134
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
Содержание VT-3428X
Страница 70: ...M 3428X VT 5128X 1c35 1 TDA7056A 1 II TO PWB E Eli 2SC3 198 G 2SC 18 I G I I I I ii i I I 0302 TP1001 70 ...
Страница 74: ...IC35 1 TDA7056A 1 IL TP1001 EXT YYNTRot Gm so1 TO PWB E IEII I o I WT OIIT I 7 I 8 I 9 I 10 I 11 I 12 I 74 ...
Страница 78: ...m 3428X VT 51 28X IF Pack Unit RiWOOl7CEZZ 1 4 11 l e i t 1 I 2 I 3 I 4 I 5 I 6 1 78 ...
Страница 82: ...VT 3428X VT 5128X I AWIO m I Au 10 f X I 7 I 8 I 9 I 10 I 11 I 12 I 82 ...
Страница 86: ...VT 3428X VT 5128X I n SAFETY DEVICE BLOCK DIAGRAM 4L me A rdl a I 8 rie fI I 7 I 8 I 9 I 10 I 11 I 12 I ...
Страница 90: ...VT 3428X VT 51 28X I t 7 I 8 I 9 I 10 I 11 I 12 I ...
Страница 94: ...VT 3428X W 5128X 3 7 I 8 I 9 I 10 I 11 I 12 I 94 ...
Страница 96: ...VT 3428X VT 51 28X TO Y C AUDIO CIRCUIT NCR 21 I I I I 7 I 8 I 9 I 10 I 11 I 12 I 96 ...
Страница 100: ...m 3428X VT 51 28X Wiring Side f r 7 I 8 I 9 I 10 I 11 I 12 1 100 ...
Страница 101: ...n n VCR SECTION H G F E D C B A VT 3428X VT 51 28X 1 lclinch PWB E VCR Unit Wiring Side I i 1 I 2 I 3 I 4 I 5 I 6 101 ...
Страница 102: ...VT 3428X VT 51 28X I 7 I 8 I 9 I 10 I 11 102 1 12 I ...
Страница 103: ...VT 3428X VT 51 28X n l VCR SECTION PWB E VCR Unit Chip Parts Side I i 1 I 2 I 3 I 4 I 5 I 6 c 103 ...
Страница 104: ...VT 3428X I m 5128X 1 7 I 8 I 9 I 10 I 11 I 12 I ...
Страница 123: ...MECHANISM CHASSIS PARTS G F E I i 1 I 2 I 3 I 4 I 5 I 6 I 123 ...
Страница 125: ...CASSETTE HOUSING CONTROL PARTS i T 3428X VT 51 28X 1 I 2 I 3 I 4 I 5 I 6 I 125 ...
Страница 127: ...VT 3428X W 51 28X MODIEL VT 3428X CABINET AND MECHANICAL PARTS 1 I 2 I 3 I 4 I 5 I 6 127 ...
Страница 128: ...W 3428X VT 51 28X I IO 9 0 3 7 128 ...
Страница 129: ...VT 3428X VT 51 28X MODEL VT 5128X CABINET AND MECHANICAL PARTS v m m 1 I 2 I 3 I 4 I 5 I 6 129 ...
Страница 130: ...VT 3428X VT 5128X I 0 I 0 ...
Страница 132: ...MODELS VT 3428X AND VT 51 28X CABINET AND MECHANICAL PARTS I i 1 I 2 I 3 I 4 I 5 I 6 I 132 ...
Страница 136: ...S H A R P TQ0023 S Printed in Japan 0 w s MW KD ...