T HOMSON
MULTI
MEDIA
SERVICE MANUAL
DOCUMENTATION TECHNIQUE
TECHNISCHE DOKUMENTATION
DOCUMENTAZIONE TECNICA
DOCUMENTACION TECNICA
X1000
WARNING : Before servicing this chassis please read the safety recommendations.
ATTENTION : Avant toute intervention sur ce châssis, lire les recommandations de sécurité.
ACHTUNG : Vor jedem Eingriff auf iesem Chassis, die Sicherheitsvorschriffen lesen.
ATTENZIONE : Prima di intervenire sullo chassis, leggere le norme di sicurezza.
IMPORTANTE : Antes de cualquier intervención, leer las recomendaciones de seguridad.
Brandt FERGUSON THOMSON
(DECK MECHANISM)
1
CONTENTS
1. Description Of The Mechanism........................................................................................2
2. Assembly Diagram & Major Parts Check.........................................................................5
3. Disassembly & Replacement...........................................................................................12
4. Mechanical Adjustmen....................................................................................................18
5. Adjustment Of Tape Transporting System ......................................................................21
6. Exploded View & Parts List ............................................................................................26
7. Parts List..........................................................................................................................30
2
1) T-Mecha Deck follows the VHS standard.
2) T-Mecha Deck uses three motors(Drum motor, Capstan motor and L/C motor)
3) T-Mecha Deck uses L/C motor to drive Front Loading.
4) T-Mecha Deck recognizes each mode by using a 4-Bit Mode signal.
This 4-Bit Mode signal is generated by the Cam Switch which is driven by the L/C Motor.
5) T-Mecha Deck is operated by 6 Modes(Eject/Initial/Review/Idle/Play, Stop,Slow/Brake/FF&Rewind).
6) T-Mecha Deck reduces the mode shifting time, that is, picture playing time by using the Full Loading System
that has the Drum wrapped by the tape.
7) T-mecha Deck is seperated from the Main PCB.
When assembling, it is connected by B-B Type connector.
The Capstan motor and Drum output of T-mecha Deck and the Main PCB are directly connected without
using cable
.
1. DESCRIPTION OF THE MECHANISM
1-1 Characteristic Of the T-Mecha Deck Mechanism
1-2 Timming Chart
3
1-3 Wire Diagram & Connector pin Arrangement
4
2. ASSEMBLY DIAGRAM & MAJOR PARTS CHECK
2-1. ASSEMBLING DIAGRAM
2-1-1) DECK ASSEMBLY DIAGRAM
A. UPPER VIEW
1. MAINBASE ASS'Y
2. DRUM ASS'Y
3. FE HEAD
4. S SLANT POLE ASS'Y
5. THENSION BAND ASS'Y
6. S BRAKE ASS'Y
7. S REEL TABLE
8. REEL BRKT TOTAL ASS'Y
9. IDLER PLATE TOTAL ASS'Y
10. T BRAKE ASS'Y
11. FL RACK
12 REALAY LEVER
13 CAPSTAN MOTOR
14 LC BRKT ASS'Y
15 PINCH LEVER TOTAL ASS'Y
16 CAM GEAR
17 AC HEAD ASS'Y
18 T SLANT POLE ASS'Y
19 HEAD CLEANER
5
B. BOTTOM VIEW
20. L LOADING ASS'Y
21. R LOADING ASS'Y
22. CONNECT PLATE
23. REEL BELT
24. LOADING RACK
6
1. FL BRKTL
2. TOP PLATE
3. SAFETY LEVER
4. LOADING LEVER AS4
5. CST HOLDER AS
6. DOOR OPENER
7. SAFETY LEVER R
8. FL BRKT R
2-1-2) FRONT LOADING assemble diagram
7
2-2-1) Periodic maintenance and Service Schedule
A.
In order to effectively maintain the excellent performance and fully utilize the features of this apparatus. and to
lengthen the life of mechanism and tapes, we strongly urge”you to perform the periodic maintenance and inspection
as described below.
¡ Following should be done after the substitution of parts of deck or correction of deck failure.
B. Cleaning of the DRUM TOTAL ASS`Y
- Slowly turnning DRUM TOTAL ASS`Y, wipe the drum surface with clean cloth soaked “ in alcohol. (Don’t
connect the power when turnning the UPPER DRUM)
- Don’t wipe the Head-Tip vertically with cleaning cloths.
C. Tape transporting section cleaning
- Clean the tape transporting section with clean cloth soaked in alcohol.
D. Driving section cleaning
- Clean the driving section with clean cloth soaked in alcohol.
E. Everyday inspection
- Perform the maintenance and inspection periodically according to the number of use.
- Refer to the table 2.2.3.
2-2-2) Cleaning and Lubrication
A. Cleaning of Tape Transporting section and driving section
a. Cleaning of Tape Transporting section
- The following parts shoule be cleaned after every 500 hours of use.
• TENSION POLE • S SLANT POLE • AC HEAD/AE HEAD
• S GUIDE POST • VIDEO HEAD / DRUM • T GUIDE POST
• FE HEAD • T SLANT POLE • CAPSTASN SHAFT
• S GUIDE ROLLER • T GUIDE ROLLER • PINCH ROLLER
- Because the above part contacts with video tape, they tend to be stained with dusts “and foreign substances
which can cause the bad effect on the picture and demage the tape sometimes.
- After cleaning with alcoho., be sure to dry the surface of drum thoroughly before using a tape.
b. Cleaning of the driving section
•REEL TABLE •
CAPSTAN FLYWHEEL/PULLEY
•REEL PULLEY
B. Lubrication
•REEL GEAR POST :
After the cleaning the parts with alcohol, lubricate them with one or two drops of oil.”
•S/T REEL TABLE POST :
After the cleaning the parts with alcohol, lubricate them with grease.”
2-2. PERIODIC MAINTENANCE AND SERVICE SCHEDULE
2-2-3) SERVICE SCHEDULE FOR EACH PARTS
Following parts should be checked according to the recommanded intervals.
: Check and Replace if necessary . : Replace
PERIODIC SERVICE (TIME)
NAME
1000 2000 3000 4000 5000
DRUM TOTAL ASS'Y
CAPST AN MOT OR
L/C BRKT TOTAL ASS'Y
REEL BEL T
IDLER PLATE TOTAL ASS'Y
REEL T ABLE
T BRAKE ASS'Y
TENSION BAND ASS'Y
PINCH LEVER TOTAL ASS'Y
AC HEAD ASS'Y
FE HEAD
REEL GEAR TOTAL ASS'Y
8
Note: Even though the unit is not used frequently, cleaning, lubrication and replacement of the belt
should be undertaken every 2 years.
9
2-3-1) LIST OF JIGS AND TOOLS
2-3. JIGS AND TOOLS
FIG.
NO ITEMS MODEL
N O
REMARKS
NTSC: SP MONOSCOPE 7KHz CHECKING OF THE
1 ALIGNMENT T APE SP COLORBAR 1KHz T APE TRANSPORTING
(EP MONOSCOPE) SYSTEM
P AL/SCAM: SP MONOSCOPE 6KHz
SP COLORBAR 1KHz
(LP MONOSCOPE)
2
CLEANING T APE
DHC-602V
CHECKING OF THE T APE
(DAEWOO) TRANSPOR TING SYSTEM
3
CASSETTE T APE KT -300NV MEASUREMENT OF
(KOKUSAI) KT -300RV REEL TORQUE
4
VHS SPINDLE
TSH-V4
MEASUREMENT OF
HEIGHT GAUGE REEL HEIGHT
5
TENTELO METER
T2-H7-UM
MEASUREMENT OF
(TENTELO) THE BACK TENSION
F AN TYPE MEASUREMENT OF THE
6 TENSION METER BELOW 3KG PRESSING FORCE FOR
THE PINCH ROLLER
7 DENT AL MIRROR
CHECKING OF THE T APE
TRANSPOR TING SYSTEM
+DRIVER -1
ASSEMBLY,
8 HEX DRIVER -2 DISASSEMBLY
AND ADJUSTMENT
ADJUSTMENT DR IVER -3
10
2-3-2) SKETCH OF JIGS AND TOOLS
ALIGNMENT TAPE
CLEANING TAPE
30
20
VHS SPINDLE
10
30
0
20
10
HEIGHT GAUGE
30
20
10
30
0
10
20
8-1
8-2
8-3
3-1. Removal of the FRONT LOADING
Ass’y (Fig. 3.1)
a. Unscrew the 2 screw holding the F/L ass’y.
b. Separate the F/L Ass’y from the MAINBASE ass’y
by lifting the rear part of F/L (Screw Hole).
3-2. Disassembly of FRONT LOADING
Ass’y (FIg. 3.2~3.5)
a. Remove the washer holding the door opener and
separate F/L Assembly by moving the DOOR
OPENER in the direction of arrow.
b. Remove the 2 screw holding the TOP PLATE and
separate the CASSETTE HOLDER Ass’y by moving
the FL BRKT L and FL BRKT R in the direction of
arrow. (Fig. 3.2)
NOTE:
Remove the FRONT LOADING Ass’y in eject
mode.
Fig. 3.1 Removal of the FRONT LOADING Ass’y
FIg. 3.2 Disassembly of the FRONT LOADING Ass’y
3. DISASSEMBLY AND REPLACEMENT
11
12
c. Separate the LOADING LEVER Ass’y by pressing
the connection point from the CASSETTE HOLDER
Ass’y. (Fig. 3.4)
d. Remove the SAFETY SPRING connecting the
SAFETY LEVER and CASSTTE HOLDER
PLATE. (Fig. 3.3)
e.
Remove the RELEASE SPRING connecting the
RELEASE LEVER and SAFETY LEVER. (Fig. 3.3)
3-
3. Disassembly of DRUM Ass’y (Fig. 3.5)
a. Turn over the DECK MECHANISM and holding the
DRUM TOTAL Ass’y @ with hands, remove the 3
screw holding the drum total assembly with
mainbase.
b. Separate the DRUM TOTAL Ass’y from the deck
paying attention there is no damage on the surface of
VIDEO HEAD and DRUM.
c. Assemble in the reverse order of disassembly.
CAUTION:
• Assemble the FRONT LOADING Ass’y in the
reverse order of disassembly.
• Confirm that 2 bosses on the left side of the
CASSETTE HOLDER Ass’y are inserted in the
groove on the left side of the top plate. Insert 2
bosses on the right side of the CASSETTE
HOLDER Ass’y into the groove of the F/L
BRACKET R. (Fig. 3.4)
FIg. 3.3 Disassembly of the CASSETTE HOLDER Ass’y
FIg. 3.4 Assembly of the FL Ass’y
CAUTION:
• After the assembly of the DRUM TOTAL Ass’y,
check out if DECK Mechanism operate smoothly
and adjustment of tape transmission section is OK.
FIg. 3.5 Assembly of the DRUM TOTAL Ass’y
3-4. Disassembly of LOADING RACK,
LOADING ASS’Y, S/T SLANT POLE
ASS’Y (Fig. 3.6, 3.7)
a.
Turn the DECK MECHANISM over and remove the
LOADING RACK@ after unscrewing the SCREW !.
b. Remove the R LOADING AS # and L LOADING
AS $.
c. Remove the S SLANT POLE AS % and T SLANT
POLE AS ^ by moving those part in arrow
direction.
3-5. Disassembly of the A/C HEAD ASS’Y
(Fig. 3.8)
a. Remove the CONNECTOR @ from the AC HEAD
Ass’y, use caution not to damage the HEAD
connector pins.
b. Separate the AC HEAD Ass’y ! after removing the
screw #.
CAUTION:
• Take care GUIDE ROLLER of S/T SLANT POLE
AS and SLANT POLE not to be stained with grease
during assembly.
• Refer to Fig. 3.7 in assembly.
FIg. 3.6 Disassembly of the LOADING RACK,
LOADING ASS’Y and the SLANT POLE ASS’Y
FIg. 3.7 Assembly of the L/R LOADING AS and the
LOADING RACK
CAUTION:
• After the assembly, adjust the tape transmission
section by refering to chapter 5.
• After the adjustment of the tape transmission
section, paint the 3 adjustment screw with locking
paint.
FIg. 3.8 Disassembly of the AC HEAD ASS’Y
13
3-6. Disassembly of the LC BRKT ASS’Y,
PINCH LEVER TOTAL ASS’Y (Fig. 3.9)
a. Separate the LC BRKT Ass’y @ after removing 3
screws !.
b. Separate the LC BRKT Ass’y @ from the DECK
MECHANISM.
c. Remove the PINCH LEVER TOTAL Ass’y #.
3-7. Disassembly of the CAM GEAR,
RELAY LEVER, FL RACK (Fig. 3.9)
a. Separate the CAM GEAR % from the MAINBASE.
b. Separate the RELAY LEVER ^ from the
MAINBASE.
c. Separate the FL RACK & from MAINBASE by
moving to the arrow direction.
CAUTION:
• After the assembly of the PINCH LEVER TOTAL
Ass’y, adjust the tape transmission section by
refering to chapter 5.
• Be careful not to get grease or other foreign
materials on the surface of the pinch roller $.
• Make sure if the end of the PINCH SPRING
PINCH “A” is located at the end of the slot of CAM
GEAR “B” in assembly. (Refer to Fig. 4.3)
CAUTION:
• When reassembling, refer to Fig. 3.10, Fig. 3.11 and
chapter 4.
FIg. 3.9 Disassembly of the LC BRACKET ASS’Y
from the PINCH LEVER TOTAL ASS’Y
FIg. 3.10 Assembly of the CAM GEAR, RELAY LEVER
FIg. 3.11 Assembly of the CAM GEAR, FL RACK
14
15
3-8. Disassembly of the S/T BRAKE ASS’Y
(Fig.3.12)
a. Unhook the S BRAKE SPRING # from the
MAINBASE HOOK !.
b. Remove the S BRAKE Ass’y @ from the mainbase.
c. Remove the T BRAKE SPRING ^ from the
MAINBASE HOOK $.
d. Remove the T BRAKE Ass’y %.
3-9. Disassembly of the TENSION BAND
ASS’Y (Fig. 3.13)
a. Unhook the TENSION SPRING @ from the
MAINBASE HOOK !.
b. Unhook the MAINBASE HOOK “A” and remove
the TENSION BAND Ass’y # from the mainbase.
3-10. Disassembly of the Capstan Motor
(Fig. 3.13)
a. Separate the CAPSTAN MOTOR % after the
removal of 3 screws $ holding the capstan motor.
3-11.
Disassembly of the FE HEAD (Fig. 3.13)
a. Remove the screw ^ and separate the FE HEAD &
from the MAINBASE.
CAUTION:
• After the assembly of TENSION BAND Ass’y on
the mainbase, adjust the TENSION POLE location
as shown in Fig. 3.14.
• Avoid getting Grease, Oil or Foreign substance on
the FELT of the BAND BRAKE.
•
Take care not to deform the MAINBASE HOOK “A”
when separating the TENSION BAND Ass’y #
.
FIg. 3.12 Disassembly of the S/T BRAKE ASS’Y
FIg. 3.13 Disassembly of the TENSION BAND ASS’Y,
CAPSTAN MOTOR and the FE HEAD
FIg. 3.14 Adjustment of the TENSION POLE POSITION
16
3-12.
Disassembly of the REEL TABLE, IDLER
PLATE TOTAL ASS’Y (Fig. 3.15)
a. Remove the POLY WASHER ! and separate the
IDLER PLATE TOTAL Ass’y @ from the
mainbase.
b. Remove the REEL TABLE $ from the REEL
TABLE POST # of the MAINBASE.
3-13.
Disassembly of the REEL BRKT TOTAL
ASS’Y, CONNECT PLATE (Fig. 3.16)
a. Turn over the DECK MECHANISM and remove 2
screws !.
b. Remove the REEL BRKT TOTAL Ass’y @ from
the MAINBASE.
c. Separate the CONNECT PLATE # from the
MAINBASE by pushing to the direction of the arrow.
CAUTION:
• Take care not to deform the IDLER PLATE
TOTAL Ass’y @ when assembling and
disassembling.
CAUTION:
• Avoid getting Grease, Oil or Foreign substance on
the FELT of the Band BRAKE.
• Disassembly of the IDLER Ass’y should be precede
the disassembly of the REEL BRKT TOTAL
Ass’y.
• Check the operation of the REEL BRKT TOTAL
Ass’y before assembly.
• Check for smooth operation of FF/REW, PLAY,
CUE and REVIEW without existence noise.
FIg. 3.15 Disassembly of the REEL TABLE and the
IDLER PLATE TOTAL ASS’Y
FIg. 3.16 Disassembly of the REEL BRKT TOTAL
ASS’Y and the CONNECT PLATE
17
4-1. Mechanical Adjustment (Fig. 4.1~4.4)
In case of disassembly and reassembly for fixing the
mechanical problem, check the following check point.
a. Make sure that the DATUM HOLE of the CAM
GEAR is aligned with the DATUM HOLE in the
MAINBASE in the EJECT mode as shown in Fig.
4.1.
b. Make sure that the ending part “A” of the RELAY
LEVER assembled on the CONNECT PLATE is
aligned with the reference hole “B” of the
MAINBASE as shown in Fig. 4.2.
c. The end point “A” of PINCH SPRING PIN of the
LEVER TOTAL Ass’y should be located within the
slot “B” of the CAM GEAR. (Fig. 4.3)
FIg. 4.1 Assembly reference between the FL RACK and
the CAM GEAR
FIg. 4.2 Assembly reference between the RELAY
LEVER and the CAM GEAR
FIg. 4.3 Assembly reference of the PINCH LEVER
TOTAL ASS’Ywith the CAM GEAR
4. MECHANICAL ADJUSTMENT
18
d. Make sure that the triangular mark “A” of the L
LOADING Ass’y is aligned with the mark “b” of the
R LOADING Ass’y. (Fig. 4.4)
e. Reference hole “C” of the LOADING RACK should
be aligned with the reference hole of the R
LOADING Ass’y to make the teeth of the
LOADING RACK is aligned as shown in Fig. 4.4.
4-2. Adjustment and measurement of the
BACK TENSION (Fig. 4.5, 4.6)
a. Check that the location of the TENSION POLE is in
the right position. If not, adjust that by refering to the
“4. Adjustment of the position of the TENSION
POLE”.
b. Playback a completely rewound T120 tape for 20
seconds. (Generally tape transporting section is
settled down in 20 seconds)
c. Measure the BACK TENSION by using the
TENTELO METER. (Refer to Fig. 4.5) The result
should be within the range of 20g~30g.
d. If the BACK TENSION is out of the range, change
the position of the TENSION SPRING of repeat the
process of “4. Adjustment of the position of the
TENSION POLE”. (Fig. 4.6)
FIg. 4.4 Assembly reference between the LOADING
RACK and the LOADING LEVER ASS’Y
CAUTION:
• If the measurement result is greater than the upper
limit, change the hook point of the spring to position
“A”.
• Confirm that all of the three probes of TENSION
meter are in contact with the tape.
• During measuring, don’t touch any other parts of
the MECHANISM(i.e, MAINBASE). It is
recommended that this measurement be repeated at
least three times for an accurate reading.
FIg. 4.5 Measurement of the BACK TENSION
19
4-3. Mechanical Mode
(Operate without a cassette tape)
a. Remove the FRONT LOADING Mechanism from
the DECK Mechanism.
b. Cap the IR LED and pull the FL RACK. This has the
same effect with cassette loading to the deck.
c. If the S/T POLE BASE is loaded, Play mode starts
automatically. If you want other function, press the
corresponding button.
d. Turn off the power when the Mechanism is in the
desired position.
4-4. Adjustment of the position of the
TENSION POLE (Fig. 4.6)
a. Place the Mechanical mode in the play mode. Refer
to the above section “3. Mechanical mode”.
b. Confirm that the TENSION LEVER is aligned with
the datum hole of the MAINBASE.
c. If the requirement “b” is not satisfied, turn the BAND
BRAKE ADJUST CAP clockwise or
counterclockwise until the two datum holes are
alined.
FIg. 4.6 Adjustment of the TENSION POLE
20
5.
ADJUSTMENT OF TAPE TRANSPORTING SYSTEM
The tape transport has been precisely alined in the factory and normally does not require readjustment. However if
adjustment is required, refer to the following chart.
If any components shown in Fig. 5.1, tape transport section are changed. To readjust the tape transporting section.
FIg.5.1 A schematic diagram of the tape transport section
21
A. Adjustment of the S/T GUIDE ROLLER
a. Check the Playing back with a E-180 TAPE.
b. Make sure that excessive tape wrinkle does not
occure at eatch S.T GUIDE ROLLER.
c. If tape wrinkle is observed at the S/T GUIDE
ROLLER, turn the guide roller screw until there
is not tape wrinkle.
B. Adjustment of the AC HEAD ASS’Y(TILT)
a. Play back a E-180 TAPE and check the running
status of lower side of GUIDE POST.
b. If there is any problem, Turn the AC HEAD
TILT SCREW until the running status improved
(Fig. 5.2)
C. Adjustment of the AC HEAD Height(Fig. 5.3)
a. Play back E-180 TAPE.
b. Make sure that the gap between the lower end of
AC head is 0.25m.
c. If the measurement of the gap is different from
the reference value 0.25m, turn the screw !,#
until the desired gap is obtained.
D. Adjustment of the AUDIO AZIMUTH(Fig. 5.4)
a. Play back the ALIGNMENT TAPE
(DP2 : SP, PAL, 6KHz)
b. Check the AUDIO output with a AUDIO
LEVEL METER.
c. Turn the AC HEAD AZIMUTH SCREW @
until the maximum AUDIO output(-9dBm ~ 3dBm)is obtained.
E. Adjustment of the X-POSITION(Fig. 5.4 5.5)
a. Connect the PATH ADJ. FIXTURE to the PT01
on the MAIN CIRCUIT BOARD.
b. Play back theALIGNMENT TAPE
(DP2 : SP STAIR STEP).
c. Connect the S/W pin and ENVE pin of the
PATH ADJ. FIXTURE with the SCOPE
PROBE.
d. Insert the adjustment bar in the AC HEAD
ADJUST hole $ and adjust the X-POSITION of
the AC HEAD ASS’Y until the ENVE is
maximum when the VR is on the CENTER.
* Three is the possibility that an another
TRACKING CENTER can be occur when the
AC HEAD ASS’Y turned completely in the
counterclockwise direction, Hence adjust the Xposition with AC HEAD ASS’Y adhering
closely to the right side until the maximum
ENVE is obtained.
e. The adjustment of the X-POSITION finished,
check if the AUDIO LEVEL is degraded, then
readjustment of the AUDIO AZIMUTH is
required.
FIg.5.2 Adjustment of the AC HEAD ASS’Y
FIg.5.3 Adjustment of X-POSITION
FIg.5.4 Adjustment of AUDIO AZIMUTH, X-POSITION
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
AC HEAD ADJUST HOLE
ADJUSTMENT BAR
Test Point
Adjustment
F. PLAYBACK PHASE ADJUSTMENT(Fig. 5.6)
Test Points: PT01 PIN # Main
Video Out Jack Rear Panel
Adjust: REC SWITCH Main
The Pulse Generator (PG) Shifter determines the video
head switching point during playback. Misadjustment of
the PG Shifter may cause head switching noise in the
picture and/or vertical jitter.
1. Load the instrument with an alignment tape and play
back the color bar signal or monoscope signal.
2. Connect Path Fixture to PT01.
3. Connect channel-1 scope probe (1V/div.:
50µ sec/div.) to PT01 PIN #. Trigger the scope on
channel-1.
4. Connect channel-2 scope probe (1V/div.) to the
Video Out Jack.
5. Set the scope to (-) slope and press the REC SW, the
alignment is performed automatically. Confirm that
the trailing edge of the SW 30Hz pulse is placed
6.5H±0.5H (horizontal) lines before the start of
vertical sync pulse.
G. Adjustment of the LINEARITY(Fig. 5.7)
a. Connect the PT01 on the MAIN CIRCUIT BOARD
with a PATH ADJ.FIXTURE.
b. Play back an ALIGNMENT TAPE (DP2 : STAIR
STEP).
c. Connect the FIXTURE S/W PULSE TEST PIN on
the PATH ADJ. CHANNEL-1 SCOPE PROBE.
d. Connect the VIDEO OUT on the MAIN CIRCUIT
BOARD
with a CHANNEL-2 SCOPE PROBE.(1V/div).
e. Adjust the VR CONTROL on the ADJ. FIXTURE
until the ENVELOPE signal is maximum while play
back the ALIGNMENET TAPE.
f. Adjust the S/T GUIDE ROLLER until the envelope
signal waveforms of the entrance and exit sides are as
shown in Fig. 5-7.
22
FIg.5.5 Adjustment of the X-POSITION
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER TAPE TRANSPORT SECTION
Test Point
Adjustment
FIg.5.7 Adjustment of Linearity
SWITCHING
SW30Hz
PULSE
VIDEO
OUTPUT
V. SYNC
6.5H–0.5
Fig.5.6
23
H. Adjustment of the wave form of DRUM
Entrance / Exit (Fig. 5.8)
a. Connect the PT01 on the MAIN CIRCUIT
BOARD with a PATH ADJ.FIXTURE.
b. Play back an ALIGNMENT TAPE(DP-2 :
STAIR-STEP signal)
c. Connect the S/W PULSE TEST PIN on the
PATH ADJ. FIXTURE with a CHANNEL-1
SCOPE PROBE.
d. Connect the VIDEO OUT on the MAIN
CIRCUIT BOARD with a CHANNEL-2 SCOPE
PROBE(1V/div).
e. Turn the VR CONTROL on the PATH
ADJ.FIXTURE clockwise or counterclockwise
until the signal shape of ENVELOPE has the
constant thickness.(Fig.5.8)
f. Adjust the S/T GUIDE ROLLER if the thickness
of the ENVELOPE signal is not uniform.
a. Connect the PT01 on the MAIN CIRCUIT
BOARD with a PATH ADJ.
b. Play back an ALIGNMENT TAPE(DP-2 :
STAIR-STEP signal)
c.
Connect the S/W PULSE TEST PIN on the PATH
ADJ.FIXTURE with a CHANNEL-1 SCOPE PROBE.
d.
Connect the VIDEO OUT on the MAIN CIRCUIT
BOARD with a CHANNEL-2 SCOPE
PROBE(1V/div).
e. Make the VR CONTROL on the PATH
ADJ.FIXTURE to the center to maximize the
ENVELOPE signal.
f. Play back in the REVIEW MODE about 15
seconds and change to PLAY MODE.
g. Check whether the ENVELOPE waveform is
restored to its original form within 3 seconds after
the REVIEW mode is changed to PLAY mode.
h. If the requirement of “g” is not satisfied, Check
the running status of tape on the lower part of T
GUIDE POST and adjust the S/T GUIDE
ROLLER precisely.
J. Checking AUDIO output waveform
(Adjustment of AC HEAD TILT & Height)
a. Connect the AUDIO output jack with an AUDIO
LEVEL METER.
b. Playback an Alignment Tape (DP-1:Color Bar
1KHz Signal)
c. Check if the AUDIO output signal level is over -
9~-3dBm.
d. If the requirement of “c” is not satisfied, readjust
the AC HEAD TILT and the HEIGHT until the
AUDIO output is maximized. (Fig. 5.2, 5.3)
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER
TAPE TRANSPORT SECTION
Test Point
Adjustment
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER
TAPE TRANSPORT SECTION
Test Point
Adjustment
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER
TAPE TRANSPORT SECTION
Test Point
Adjustment
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER
TAPE TRANSPORT SECTION
Test Point
Adjustment
FIg.5.8 Fine adjustment of the ENVELOPE at the
DRUM ENTRANCE/EXIT
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER TAPE TRANSPORT SECTION
Test Point
Adjustment
FIg.5.8 Fine adjustment of the ENVELOPE at the
DRUM ENTRANCE/EXIT
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER TAPE TRANSPORT SECTION
Test Point
Adjustment
FIg.5.8 Fine adjustment of the ENVELOPE at the
DRUM ENTRANCE/EXIT
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER TAPE TRANSPORT SECTION
Test Point
Adjustment
FIg.5.8 Fine adjustment of the ENVELOPE at the
DRUM ENTRANCE/EXIT
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER TAPE TRANSPORT SECTION
Test Point
Adjustment
FIg.5.9 Waveform change when the mode is changed
(REVIEW Ö PLAY)
AUDIO OUTPUT AUDIO OUTPUT JACK
AUDIO LEVEL METER
Test Point
Measurement Equipment
FIg.5.9 Waveform change when the mode is changed
(REVIEW Ö PLAY)
AUDIO OUTPUT AUDIO OUTPUT JACK
AUDIO LEVEL METER
Test Point
Measurement Equipment
FIg.5.9 Waveform change when the mode is changed
(REVIEW Ö PLAY)
AUDIO OUTPUT AUDIO OUTPUT JACK
AUDIO LEVEL METER
Test Point
Measurement Equipment
FIg.5.9 Waveform change when the mode is changed
(REVIEW Ö PLAY)
AUDIO OUTPUT AUDIO OUTPUT JACK
AUDIO LEVEL METER
Test Point
Measurement Equipment
I. REVIEW PLAY(Fig. 5.9)
24
K. Adjustment of the AUDIO AZIMUTH
a. Connect the AUDIO output JACK with an
AUDIO LEVEL METER.
b. Play back the ALIGNMENT TAPE(DP-2:STAIR
STEP 6KHz Signal).
c. Check if the AUDIO output signal level is over : -
9 ~-3dBm.
d. If the requirement of “c” is not satisfied, readjust
the AZIMUTH SCREW of the AC HEAD until
the AUDIO output is maximum.(Fig. 5.4)
e. Repeat at “Adjustment of the wave form of
DRUM Entrance/Exit”
L. X-POSITION
a. Connect the PT01 on the MAIN CIRCUIT
BOARD with a PATH ADJ.FIXTURE.
b. Play back an ALIGNMENT TAPE(DP-2: STAIR
STEP Signal).
c. Connect theS/W PULSE TEST PIN on the PATH
ADJ.FIXTURE with a CHANNEL-1 SCOPE
PROBE.
d. Connect the VIDEO OUT on the MAIN
CIRCUIT BOARD with a CHANNEL-2 SCOPE
PROBE(1V/div)
e. Check if the ENVELOPE is maximum when the
VR CONTROL on the PATH ADJ. FIXTURE is
in CENTER.
f. If not, readjust the X-POSITION by referring to
subitem “E”(Adjustment of the X-POSITION).
g. Repeat the process of subite, “F(PLAYBACK
AUDIO OUTPUT AUDIO OUTPUT JACK
AUDIO LEVEL METER
Test Point
Measurement Equipment
S/W PULSE TEST PIN PATH ADJ. FIXTURE
ENVELOPE TEST PIN PATH ADJ.FIXTURE
Measurement Equipment OSILLOSCOPE
VR CONTROL PATH ADJ.FIXTURE
S/T GUIDE ROLLER
TAPE TRANSPORT SECTION
Test Point
Adjustment
6. EXPLODED VIEW AND PARTS LIST
25
6-1. Exploded view of DECK Ass’y ( Top View)
6-2. Exploded view of DECK Ass’y ( Bottom View)
26
27
6-3. Exploded view of FL Ass’y
28
6-4. Exploded view of Drum Ass’y
D0040
D0040
D0020
D0050
D0010
D0060
D0070
29
7.
PARTS SLIST
LOC. PARTS CODE PARTS NAME PARTS DESCRIPTION
PAL
M1000 PVDKARP82S VCR DECK AS(T40) DRP-8200HVP(N82S-C)N/H/C (2HD SP/LP NON-DLC)
PVDKARP84S VCR DECK AS(T40) DRP-8400HVP(N82S-C)N/H/C(4HD SP/LP NON-DLC)
PVDKARP86S VCR DECK AS(T40) DRP-8600HVP(N82S-C)N/H/C(6HDHI-FINON-DLC)
SECAM
M1000 PVDKARP82S VCR DECK AS(T40) DRP-8200HVP(N82S-C)N/H/C(2HD SP NON-DLC)
PVDKARS84S VCR DECK AS(T40) DRS-8400HVP(N82S-C)N/H/C(4HD SP/LP NON-DLC)
PVDKARS86S
VCR DECK AS(T40) DRS-8600HVP(N82S-C)N/H/C(6HD HI-FI NON-DLC)
7-1. Parts List of Deck Total ASS’Y
7-2. Parts List of Drum Price ASS’Y
LOC. PARTS CODE PARTS NAME PARTS DESCRIPTION
PAL
AD001 97PA283101 DRUM PRICE AS CYP-T210V( 2HD SP/LP NON-DLC)
97PA283201 DRUM PRICE AS CYP-T410V( 4HD SP/LP NON-DLC)
97PA283601 DRUM PRICE AS CYP-T610V( 6HD HI-FI NON-DLC)
SECAM
AD001 97PA283101 DRUM PRICE AS CYP-T210V( 2HD SP NON-DLC)
97PA283301 DRUM PRICE AS CYS-T410V( 4HD SP/LP NON-DLC)
97PA283501 DRUM PRICE AS CYS-T610V( 6HD HI-FI NON-DLC)
7-3. Parts List of VCR Deck ASS’Y
LOC. PARTS CODE PARTS NAME PARTS DESCRIPTION
DRUM ASS'Y
D0010 DRUM AS (REFERRING TO LIST OF DRUM PRICE)
D0020 97SA327500 DRUM M/T AS E20XL-35
97SA327400 DRUM M/T AS DMVDMTO4M1
D0040 7001260711 SCREW MACHINE PAN 2.6X7 MFZN
D0050 97SA320400 EARTH GROUND AS T-DRUM
D0060 97S2303600 HOLDER MAIN POM(KEPITAL F20)
D0070 97S2303800 HOLDER CAP(B) POM(4CH)
D0070 97S2303900 HOLDER CAP(C) POM(6CH)
DECK ASS'Y
AM001 DECK AS (REFERRING TO LIST OF DRUM PRICE)
A0100 97SA318100 MAIN BASE AS T-MECHA
A0200 97SA316500 S SLANT POLE AS T-MECHA
A0300 97SA316600 T SLANT POLE AS T-MECHA
A0400 97S8102300 MOTOR CAPSTAN DMVCMC08D
97S8102100 MOTOR CAPSTAN F2QSB-53(PWM)
A0401 97S3102000 SCREW TAPPTITE TT2 BIN-P 2.6X7 MFZN
A0600 97SA320500 AC HEAD AS T-MECHA
A0601 7051300611 SCREW MACHINE PAN 3X6 SW MFZN
A1000 97SA316800 L LOADING AS T-MECHA
A1100 97SA316900 R LOADING AS T-MECHA
A1200 97S2709500 RACK LOADING SECC T1.2
A1201 7008301911 SCREW MACHINE WAS M3*19 MFZN
30
LOC. PARTS CODE PARTS NAME PARTS DESCRIPTION
A1400 97S0904310 PLATE CONNECT-H SECC T1.0
A1500 97SA319410 REEL BRKT TOTAL AS T2-MECHA
A1501 7274300511 SCREW TAPPTITE TT3 RND 3X5 MFZN
A1700 97S5500400 BELT REEL CR68
A1800 97S2623200 LEVER RELAY SECC T1.2
A1900 97S2709600 RACK FL PBT(DY4410GF) NATURAL
A2000 97S2708200 GEAR CAM DERLIN 100
A2100 97SA317150 PINCH LEVER TOT AS T-MECHA
A2200 97SA318010 LC BRKT AS T-MECHA
A2201 7274300611 SCREW TAPPTITE TT3 RND 3X6 MFZN
A2400 97SA317310 IDLER PLATE TOT AS T2-MECHA
A2401 97S3108200 POLYWASHER D2.6XD6.0XT0.5
A2600 97S2909400 TABLE REEL POM(F20-03) BLACK
A2700 97SA317200 TENSION LVR TOT AS T-MECHA
A2800 97SA317400 S BRAKE AS T-MECHA
A2900 97SA317510 T BRAKE AS T2-MECHA
A3000 97S8015000 HEAD FE HVFHU0030AK
97S8023100 HEAD FE MH-131DT
A3001 7274300811 SCREW TAPPTITE TT3 RND 3X8 MFZN
AC001 97SA326900 HEAD CLEANER AS T-MECHA
FL ASS'Y
AF001 97SA261010 F/LOADING AS T-MECHA
AF002 7274300511 SCREW TAPPTITE TT3 RND 3X5 MFZN
A5000 97S2401400 BRKT FL L SECC T1.0
A5100 97S2401500 BRKT FL R SECC T1.0
A5200 97SA317700 CST HOLDER AS T-MECHA
B3400 97SA415400 CST HOLDER SUB AS T-MECHA
B3410 97S2621600 LEVER SAFETY L SECC T1.0
B3420 97S3008900 SPRING SAFETY LEVER SUS304 WPB D0.5
B3430 97S2621700 LEVER SAFETY R SUS304 T0.5
B3440 97S2621800 LEVER RELEASE POM (F20-03) NATURAL
B3450 97S3009000 SPRING RELEASE LEVER SUS304 WPB D0.25
A5300 97SA317800 F/L LEVER AS POM (F20-03) BLACK
A5400 97S0903910 PLATE TOP SECC T1.0
A5401 7274300611 SCREW TAPPTITE TT3 RND 3X6 MFZN
A5600 97S2622700 LEVER DOOR OPENER POM(F20-03) BLACK
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