
TABLE
OF
CONTENTS
SERVICE
NOTE
1.
HOWTO
RETURN
THE
PINCH
ROLLER,
GUIDE
ROLLER
AND
ELEVATOR
CAM
TO
STOP
MODE.
ovvss:-s+s+seseseteeseeeeeeees
6
2.
HOWTO
RETURN
A
TAPE
INTO
CASSETTE
HALE
-vssesecessecesesssencesesescecssesecsseatsescssepescesencees
6
3.
HOW
TO
REMOVE
A
CASSETTE
FROM
A
MACHINE
IF
A
CASSETTE
IS
LEFT
IN
A
MACHINE
IN
TROUBLE
-+---+s-+ssessessesesesssesssesereretenecarseeese
6
4.
HOWTO
REMOVE
DRUM
ASSEMBEY
«sssss-tosssscscecsosesrcensascesvssssvantiadeabucduaxscten
sectsts
-6
5.
HOWTO
REPLACE
A
ROTARY
UPPER
DRUM
(SLV-675HF/676HF/675HFPX/685HF/695HF/
L60HFCS/L60HFMX/L60HFPA/X6HFMX/L70HFCS/
LTOHFMX/LTOHFPA)
--+--s-s+sesseesesseessessseseeseessssesecsussessesces
7
5-1.
HOW
TO
REMOVE
A
ROTARY
UPPER
DRUM
-.--+--+++
7
5-2.
HOW
TO
ATTACH
A
NEW
ROTARY
UPPER
DRUM
---7
1.
GENERAL
Getting
Started
Umpacking
v--s--sesesseesssescssesssseesneerassecnsescnnssssnsessnssenessnenssnessnes
1-1
Setting
up
the
remote
commander
--
Hookups
sSabian'e
celon
bese cend
sueswoe'sescacecwcdsucs
Selecting
a
language
tees
Setting
the
clock
-++--+:--ss06+
Presetting
Cannel
S:
«nsetesecesenivccesiassactasiatianescassvevennsnssvacedbedaraian
Basic
Operationa
Playing
a
tape
Coda
des
sees
evasi
cove
dcdvatesvas
Sos
caceobtastousesssnekccccew
one
udoesdiexs
1-5
Recording
TV
programs
sie
Recording
TV
programs
using
the
timer
-------++++++-+s+e+erereeeeeees
1-7
Additional
Operations
Playing/searching
at
various
5
9)
a6
1-7
Recording
TV
programs
using
the
quick
timer
Checking/chaging/canceling
timer
settings
--------+------+++-+s2+
1-8
Recording
stereo
and
bilingual
programs
«----+-++-+++s+++s+e+e+s0+0+
1-8
Adjusting
the
picture
spa
Uevactaseesceasesesetessctescadacdecadsadecdsuneacceéeees
1-9
Changing
menu
Options
----+---++-ssessseseeresesseeesesstecssseesensesneneens
1-9
Editing
with
another
VCR.
-++-::--csecsseesccecererecesetevssveveesensessesenee
1-9
General
setup
information
sseacseeescscesensoseseseacseassonses
1-10
Index
to
parts
AN
CONELONS
«+-----eeeeeeeeeeeeeeeeteeteeereeeeesensnessssseses
1-10
2.
DISASSEMBLY
2-1.
CASE
AND
FRONT
PANEL
ASSEMBLY
«+-.-+-+--+++000++
2-1
2-2.
POWER
BLOCK
orssessssssssssescsscssecssecesececessecssescscneeesnerenses
2-1
2-3.
MA-289
BOARD
WITH
MECHANISM
DECK
ASSEMBLY.
tssssesvesticenssseeisccesctnaesttbuascctasuevansecessvtetineasecees
22
2-4.
MECHANISM
DECK
ASSEMBLY
-oreesseesseesssseessccoseeees
2-3
2-5.
CIRCUIT
BOARDS
LOCATION
-+---+--:-e:cssessss
ceseerereseee
2-3
3.
BLOCK
DIAGRAMS
3-1.
OVERALL
BLOCK
DIAGRAM
consseesseescestsescessesssessesenee
3-]
3-2.
VIDEO
BLOCK
DIAGRAM
crssssesssssessssesesssesseessseseeceeees
3-3
3-3.
SERVO,
SYSTEM
CONTROL
BLOCK
DIAGRAM
-.---
3-5
3-4.
AUDIO
BLOCK
DIAGRAM
-
see
3-7
3-5.
TUNER BLOCK
DIAGRAM
steseeteeseseene
3-9
3-6.
POWER
SUPPLY
BLOCK
DIAGRAM
-----esssesesesesseees
3-11
4.
PRINTED
WIRING
BOARDS
AND
SCHEMATIC
DIAGRAMS
4-1.
FRAME
SCHEMATIC
DIAGRAM
ssreseescsesscecseeceeeneeees
4-1
*
MA-289
(MAIN)
PRINTED
WIRING
BOARD
-..-.-.-+
4-6
¢
MA-289
(REC/PB
AMP)
SCHEMATIC
DIAGRAM
-----
-essssssseeereesseneees
4-8
¢
MA-289
(VIDEO,
TUNER,
AUDIO),
JK-151(LINE
IN
2)
PRINTED
WIRING
BOARD
AND
SCHEMATIC
DIAGRAM
ons-+-
cssesseseeee
eeees
4-1]
*
MA-289
(SERVO,
SYSTEM
CONTROL),
DS-75
(OPERATON
SWITCHES)
PRINTED
WIRING
BOARD
AND
SCHEMATIC
DIAGRAM
-ov-sssesecessessssterrenee
4-16
*
MA-289
(POWER
SUPPLY)
SCHEMATIC
DIAGRAM
crreecsecseeeceeetescerenee
4-21
*
POWER
BLOCK
SR701
(SWITCHING
REGULATOR)
PRINTED
WIRING
BOARD
AND
SCHEMATIC
DI
AGRA
DM
60s
tcnsssveisesssiccisicsaccassastestinens
4-23
*
POWER
BLOCK
HS-821SF
(SWITCHING
REGULATOR)
PRINTED
WIRING
BOARD
AND
SCHEMATIC
DIAGRAM
eerrsesressersersessecneres
4-25
5.
REPAIR
PARTS
LIST
5-1.
EXPLODED
VIEWS
------sssscssssssssssssessssscorsestseseneseacanenes
5-1
5-1-1.
FRONT
PANEL
ASSEMBLY
AND
CASE
-rssssssss00000
5-1
5-1-2.
CHASSIS
ASSEMBLY
-s-+-+++-ssssssseeessssseessssensosses
woven
5a
5-1-3.
MECHANISM
DECK
ASSEMBLY¢1
---s+ss+sssssssssssessssens
5-3
5-1-4.
MECHANISM
DECK
ASSEMBLY-2
«+»
5-4
5-1-5.
MECHANISM
DECK
ASSEMBLY-3
«++++s+sssssessssssssssee
5-5
5-1-6.
MECHANISM
DECK
ASSEMBLY-4
-+--+:ssssssssssessessssee
5-6
5-2.
ELECTRICAL
PARTS
LIST.
-s-+-+-:essssssssessssseccersestesescnsses
5-7
6.
INTERFACE,
IC
PIN
FUNCTION
DESCRIPTION
6-1.
SYSTEM
CONTROL
—
MECHANISM
BLOCK
INTERFACE
(MA-289
board
1C160)
«--s+sssssssssssssessnsesssusessssnesecnsneceeees
6-1
6-2.
SYSTEM
CONTROL
—
SERVO
PERIPHERAL
CIRCUIT
INTERFACE
(MA-289
board
1C160)
-ss+sssssssesseseesesesssseessssecssssseessseeeses
6-1
6-3.
SYSTEM
CONTROL
—
SYSTEM
CONTROL
PERIPHERAL
CIRCUIT
INTERFACE
(MA-289
board
1C160)
«++++-sssssssssseseesessssses
6-2
6-4.
SYSTEM
CONTROL
AND
RF
MODULATOR
—
INPUT
SELECTION
BLOCK
INTERFACE
(MA-289
hoard
10501)
:-sscesszesicencsscsssdessicetoserasonsussiacsooe
6-2
6-5.
SYSTEM
CONTROL
—
VIDEO/RP
BLOCK
INTERFACE
(MA-289
board
1C160)
«-r-sssessssssesesseessessessesenecsesseenessnees
6-2
6-6.
SYSTEM
CONTROL
—
AUDIO
BLOCK
INTERFACE
(MA-289
board
1C160)
-s--sssessssssssecsessecsesesseenesssersesesesenes
6-2
6-7.
SERVO/SYSTEM
CONTROL
MICROPROCESSOR
(MA-289
board
1C160)
-+-ssssessssssessessesseessesstsssesesssssenseesees
6-3
7.
ADJUSTMENTS
7-1
MECHANICAL
ADJUSTMENTS
cvvssesssssssscessescersseserseee
7-1
7-2.
ELECTRICAL
ADJUSTMENTS.
-vrssssssssessrssesersseteeseseaeee
7-1
2-1.
PREPARATION
BEFORE
ADJUSTMENT
-+--+-----+::00++
7-1
2-1-1.
Equipment
Required
oeecsccensccenccesscesscascoccssacsasancssonsoocccnccees
7-1
2-1-2.
Equipment
Connection
«+----+-+-ssssesrseesessensesseneersseraneeneee
7-1
2-1-3.
Input
Signal
Check
---+----e-ceesseeccessosessessnessseesnessnesssseenesenees
7-1
2-1-4.
Alignment
Tape
can
eeeneecenneoenseaesssessneescaneescecereccesscconecsseas
ces
7-1
2-1-5.
Input/Output
Levels
and
ucenceta
oreve
7-2
2-1-6.
Adjustment
Sequence
------------
resteceeeneneeneenaasesenesnenees
7-2
2-2.
POWER
SUPPLY
CHECK
setseneeaeenssensenenceseeeeesaesons
7-2
2-2-1.Output
Voltage
Check
(MA-289
Board)
---+++-++s+s+sss+sssese0
7-2
2-3.
SERVO
SYSTEM
CHECK
o-vsesssssssssssssscseseseeceeseseaessassees
7:3
2-3-1.RF
Switching
Position
Adjustment
(MA-289
Board)
-----
7-3
2-4.
VIDEO
SYSTEM
CHECKS
-vsssssesssssssssececssessessseseseessesens
7-3
2-4-1.
X’tal
OSC
Check
(MA-289
Board)
-++--s-ssssssesssesssesesneens
4-3
2-4-2.
SYNC
AGC
Check
(MA-289
Board)
«+sssssssessecssseseseeesss
7-4
2-4-3.
White
Clip/Dark
Clip
Check
(MA-289
Board)
--.
2-4-4.
Recording
Y
Level
Check
(MA-289
Board)
«----++++++s+010++
7-4
2-4-5.
Recording
Chroma
Level
Check
(MA-289
Board)
--------
7-4
SA