CONTENTS.
[___:~-CHAPTER
LZ
FEATURE
TABLE
.....seecececsseses
paris
onerass
1-1
MAIN
CONTROL
ICs
TABLE
.....ccccscecvcscccsece
1-2
CONTROLS
AND.
FUNCTIONS
......cccccccccesccecee
1-3
VIDEO
CHANNEL
SETTING
.....ccccesccccecceeesee
1-4
PRE-TUNING
OF
BUILT-IN
TV
TUNER
........eec00-
1-5
SETTING
THE
CLOCK
.....cscccecccccccccsccesece
176
RECORDING
TV
PROGRAMMES
.......ccccecccccceeee
177
INSTANT
RECORDING
TIMER
“<IRT)
......
‘ie
eiavewrelares
1-7
PLAYBACK:
<-c-c-o-stonedee
cease
oases
esmeeeewes
eaceme
Lol
SPECIAL
CHARACTERISTICS
........
sudewdveseeeeor
Leo
TIMER
RECORDING
.......0..
coeicn
es
fcavesafereieye.e.68
1-9
RECALLING
THE
PROGRAMME
2...
ccccesccccvccccene
1-10
CLEANING
(“ERASING”)
INFORMATION
FROM
A
PROGRAMME
1...
cs
cceccsccnccccncccccce
1-10
PROGRAMME
PRIORITY
....0..eeee0.
meneeente
.
1-10
CHAPTER
2
2]
DISASSEMBLY
1.
IDENTIFICATIONS
AND
LOCATIONS
OF
CIRCUIT
BOARDS
2...
ccc
scence
cencvcccoccs
2-1
2.
IDENTIFICATIONS
AND
LOCATIONS
OF
MAIN
MECHANICAL
COMPONENTS
.....
iis
wieeraldacere-e
2-1
3.
CASE
REMOVAL
1.
Top
Cover.......
oC
aeaOewe
we
pee
Seceeeeeee
Lae
2.
Bottom
Cover
..ccceccccscscccvccccccccecs
2-3
3.
Front
Panel
.....cccccccccccccccccssccecs
L-8
A,
Cassette
Door
..ccccccccvccccerecccessces
270
5.
Rear
Panel
..cscceecccccccccccccecceesees
a0
4,
CIRCUT
BOARD
REMOVAL
1.
Main
Circuit
Board
.....cceeccsescccceecs
273
2.
Function
SW
Circuit
Board
......ceeseeeee
279
3.
Pre
Amp
Circuti
Board
......ceeccesceoeee
24
4.
Sensor
Circuit
Board
.....ceceseeceessces
24
5.
CASSETTE
LOADING
MECHANISM
REMOVAL
1.
Cassette
Loading
Mechanism
Assembly
and
Cassette
Door
.....ee+6.
Sawic
Seatac
a4
2.
Loading
Gear
Assembly,
Chaseis
Holder,
Cassette
Holder
Assembly,
Front
Holder
..ceccccccccncsccccceccceces
2-4
3.
Cassette
Holder
Base
and
Cassette
Holder
L,
R
..cccccccecccccecsee
24
4,
Side
Chassis,
Door
Arm,
Worm
Wheel,
FL
Worm
Gear,
Switch
Lever
A/B
......ee0-
2-4
Chassis
Holder
Reinstallation
......s.06.
2-5
6.
Loading
Gear
Assembly
Reinstallation
....
2-5
6.
MAIN
MECHANICAL
COMPONENTS
REMOVAL
~
5
1.
Video
Head
(Upper
Cylinder),
Cylinder
Motor
Assembly
....cececeeceeses
279
2..FE
(Full
Erase}
Head/Impedance
Roller,
A/C
(Audio/Control)
Head
.....ceceeeeeees
209
3.
Head
Cleaning
Arm
Assembly,
Head
Cleaning
Bracket
Assembly
..........
2-6
.
Capstan
Motor
Assembly
......esceeceeeees
276
Tension
Arm/Tension
Band
......eeceeeeses
276
.
Slider
Block
Assembly,
Reel
Drive
Idler
....ccccecsccccccccccscces
276
7.
Supply
and
Take-up
Reel Disk
............
276
8.
Pressure
Roller
Assembly,
Supply
and
Take-up
Guide
Poles,
Supply
and
Take-up
Guide
Roller
........ceccecescces
2-7
9.
Load
Block
Assembly,
Brake
Link
ia
FS
Brake
ArM
sccccccccccccvcccsccccescses
ont
mow
ts
°
10.
Load
Bracket
Assembly
bes
gt
eaeot:
et
:
11.
Brake
Operation
Arm,
Mode
Gear,
Worm
—
:
Wheel,
Pressure
Roller
Operation
Arm,
.-
Mode
Change
Arm,
Brake
Lift
Arm
.:......
2-7
12.
Cylinder
Motor
Base,
Supply
and
Take-up
Loading
ArMS
....ceccccccscncece
2-8
‘13.
Take-up
Pulley
and
Clutch
Base
Assembly
......cccccccees
eee
278
7.
ATTACHING
THE
ROTOR
MAGNET
PLATE
TO
THE,
CYLINDER:
MOTOR
35
se:csiseseecesecedceusen
200
ee
CHAPTER:
3.202
ELECTRIC
CIRCUIT
ADJUSTMENTS
.....cceseccceces
orl
Test
equipment
and
tapes
necessary,
for
AGJUSTMENE
oid
sade
deics
ew
es
vos
so
elele's
Seecees
3-1
Cautions
on
adjustments
....cceccceeeeeeceee
OL
To
set
tracking
to
the
centre
.....scceeeeee
Sm]
Resetting
the
microproceSSors
.....esececees
Sol
Servicing
Position
...cccccccccccccccvecesse
onl
Adjustment
Parts
Locations
.......ccececcecee
O72
1.
SERVO
CIRCUIT
BOARD
ADJUSTMENTS
1.
Head
Switching
Point
Adjustment
.........
3-3
2.
Vert.
Sync
Adjustment
....ccccccsese
ES
sats)
2.
Y/CHROMA
CIRCUIT
ADJUSTMENTS
1.
Rec
Y/Chroma
Level
Adjustments
.......06.
2.
1H
Delay
Line
Level
Adjustment
..........
3.
Secam
Detect,
Level
Adjustments
(For
DS,
SW,
SWM)
......
ccc
eee
cece
eee
e
ee
3A
4.
Chroma
VCO
Adjustment
.....cceceeceseeene
OA
3.
AUDIO
CIRCUIT
ADJUSTMENT
.......ccccceceees
S70
1.
Audio
Bias
Level
Adjustment
.......5-e00-
370
4.
ON
SCREEN
DISPLAY
CIRCUIT
ADJUSTMENT
......
3-5
1.
Character
Position
Adjustment
........6+.
379
ee
CUAP
TER.
oy
ad
MECHANISM
ADJUSTMENTS
JIGS
AND
TAPES
FOR
ADJUSTMENT
.......ee0e00.
4-1
ADJUSTMENT
PARTS
LOCATIONS
.......
Si
ahecebterelae
4-1
MECHANICAL
PARTS
ADJUSTMENT
.
1.
Mechanism
State
Switch
.....c.cccccccees
-
4-2
TAPE
TRANSPORT
SYSTEM
PARTS
ADJUSTMENTS
1.
Reel Disk
Height
Adjustment
.........006.
4-3
2.
Tension
Pole
Position
and
Tension
Adjustment
.......ccccccnecceceee
47-4
3.
Guide
Pole
Height
Adjustment
............
4°5
4,
Guide
Roller
Hegiht
Adjustment
..........
4-5
5.
Audio/Control
(A/C)
Head
Adjustment
.....
4-7
6.
X
Value
Adjustment
.....ccccvccccccssvees
478
7.
Adjustments
after
Replacing
Cylinder
(Video
Heads)
.....c.ccccccccevcceccccess
4°9
8.
Tension/Torque
Checks
.......cceceecsees
4710
9.
To
Set
the
VIR
to
the
Loading
State
without
Inserting
a
Cassette
...........
4-ll
5.
Maintenance
Procedures
7
BL.
Cleaning
...ccccccccccssccccccsccecces
4-12
5-2.
Lubrication
....cccccccccccccccccscees
And2
5-3.
GreasSing
...cccccccccccccscescsecseces
A12
6.
Inspection
Locations
.....ceccccsccccceces
4°13
oS
CHAPTER:
SS
SCHEMATIC/CIRCUIT
BOARD
DIAGRAM
..........006.
O-l
INTERNAL
WIRING
DIAGRAM...
ec
secesecsceceeeees
5-2
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