JVC HR-D540EE - Table of Contents

Section
NOTE:
For
a
technical
description,
please
refer
to
Technical
Guide
VTG82052
HR-D540/D580/D660
PAL.
TABLE OF CONTENTS
Title
Page
Important Safety Precautions
INSTRUCTIONS
1.
1.
NN
NNNNNN
WWW
WW W WWWWW WWWWWWW
DISASSEMBLY
AND
MECHANISM
ADJUSTMENTS
1
DISASSEMBLY
Top
cover
Front
pane!
assembly
Bottom
cover
Main
board
assembly
.
Cassette
housing
Cassette
housing
installation
..
Cassette
housing
door
Mind-deck
HANISM
ADJUSTMENTS
.
Precautions
.2.2
Check
without
cassette
housing
...
.2.3
Manually
removing
cassette
tape
.
.2.4
Test
equipment
MAIN
MECHANISM
PARTS
..
INSPECTION
AND
MAINTENANCE
.4.1
Suggested
servicing
schedule
for
main
components
MAIN
PARTS
REMOVAL
AND
REPLACEMENT
OnNAORWN—
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= ee
Q
=
Fae ee ee
Sar ne ee ey
On NODBRARBWWNN ABSA
mama AWurm am oaNoa waar
ey
a
. ELECTRICAL ADJUSTMENTS
PREPARATION
.1.1 Required test equipment ...
.1.2 Check and adjustment steps
SWITCHING REGULATOR CIRCUIT
TIMER CIRCUIT .....
SERVOCIRCUIT ..
VIDEO CIRCUIT ...
AUDIO CIRCUIT .....
TUNE/IF CIRCUIT
NMOOSBONAN =
NNNNNNN
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NNO BWWN a
. CHARTS AND DIAGRAMS
.1 CIRCUIT BOARD AND LOCATION
GENERAL INFORMATION
Connections
Disconnecting the flatwire ....
Indications
Schematic diagram values
Signal flow in the schematic ....
Semiconductors
. Replacement of chip parts ....
BOARD INTERCONNECTIONS ....
VIDEO BLOCK DIAGRAM
PRE/REC BLOCK DIAGRAM .
SERVO BLOCK DIAGRAM ..
AUDIO BLOCK DIAGRAM
SYSTEM CTL BLOCK DIAGRAM
POWER
TRANS,
POWER
TRANSISTOR
&
REGULATOR
(MAIN)
SCHEMATIC
DIAGRAM
.....sccceececererneenreeereeees
3-17
10
SWITCHING
REGULATOR
CIRCUIT
BOARD
sever
HTD
.11 SERVO SCHEMATIC DIAGRAM
.12 AUDIO SCHEMATIC DIAGRAM
.13 SYSTEM CTL SCHEMATIC DIAGRAM .
.14
DECK
TERMINAL,
MODE
MOTOR,
CAPS
C. HOUSING SCHEMATIC DIAGRAM
.15 DECK TERMINAL, MODE MOTOR, C. HOUSING,
A/C HEAD CIRCUIT BOARDS
.16 MAIN CIRCUIT BOARD
.17 VIDEO UNIT & VIDEO (MAIN) SCHEMATIC
DIAGRAM
NNMNNNYNND
NOOAWN =
.
WWWWWWWHWWWWWOW
C1W On OW WNNNNNN —
:
pe ee
WOOBOIMOOMABWWWWWWWWN
Section Title Page
3.18
VIDEO
UNIT
CIRCUIT
BOARD
ou...
eceeeeeeeneenenereenes
3-33
3.19
IF
&
TNR
CTL
SCHEMATIC
DIAGRAM
.
.
3-35
3.20
IF
&
TNR
CTL
CIRCUIT
BOARD
.........
3-37
3.21
TIMER/DISP/SW
SCHEMATIC
DIAGRAM
3-39
3.22
TIMER/DISP/SW
CIRCUIT
BOARD
..............
3-41
3.23
PRE/REC
SCHEMATIC
DIAGRAM
.
3-43
3.24
PRE/REC
CIRCUIT
BOARD.
........cceeestteeeeteeeeerene
3-45
3.25
REMOTE
CONTROL
SCHEMATIC
DIAGRAM
...
3-47
3.26
RFE
CONVERTER
SCHEMATIC
DIAGRAM
.....cceesreeeee
3-48
4. EXPLODED VIEWS AND PARTS LIST
4.1
PACKING
ASSEMBLY
<M1>
ou...
ecssecssseeecerresensnsaees
eneee
4-1
4.2
CABINET
ASSEMBLY
<M2>.
.
4-2
4.3
CHASSIS
ASSEMBLY
<M3>
.....
-
4-3
4.4
MECHANISM
ASSEMBLY
<M4
>
a...
ecccecsseeensensensoes
sees
4-4
5.
ELECTRICAL
PARTS
LIST
POWER
TRANSFORMER
BOARD
ASSEMBLY
<01><02>
.
5-1
MAIN
BOARD
ASSEMBLY
<O3
>
....cccceesscceecereessenerereeneenn
ae
ees
5-3
VIDEO
UNIT
BOARD
ASSEMBLY
<05
>
.
6-7
IF
BOARD
ASSEMBLY
<O7>
ou...
.
5-9
TUNER
CONTROL
BOARD
ASSY
<08
>
.
5-11
AUDIO
CONTROL
HEAD
BOARD
<12>
.
5-12
T/D/S
BOARD
ASSEMBLY
<21>
.........-
.
§-12
UPPER
DRUM
BOARD
<41>
.....eesseessreeee
.
5-13
PRE/REC
AMP
BOARD
ASSEMBLY
<43>
.........5
.
5-13
DECK
TERMINAL
BOARD
ASSEMBLY
<51>
......
.
5-14
LOADING
MDA
BOARD
ASSEMBLY
<55>
......
.
515
CASSETTE
HOUSING
BOARD
<S6
>
ou...ecccctssesessesnseceeeenee
pene
5-15
6.
TECHNICAL
INFORMATIONS
6.1.
CIRCUIT
CONTROL
SYSTEM
...ccceeeesteereeeseesenreein
conte
6-1