SHARP VLFD1U Service Manual
VL-E990E
SERVICE MANUAL
SERVICE MANUAL
S50A2VL-FD1U/
LIQUID CRYSTAL DIGITAL CAMCORDER NTSC
VL-FD1U
VL-FD1U
LIQUID CRYSTAL DIGITAL CAMCORDER
1. IMPORTANT SERVICE NOTES.........................................................................................................2
2. SPECIFICATIONS .............................................................................................................................. 5
3. PART NAMES AND FUNCTION......................................................................................................... 6
4. DISASSEMBLY OF THE SET ............................................................................................................7
5. MECHANISM ADJUSTMENT JIGS AND PARTS ............................................................................10
6. INSPECTION AND MAINTENANCE
NTSC
MODEL VL-FD1U
ITEMS AND INTERVALS .................................................................................................................11
7. MECHANICAL ADJUSTMENTS AND CHECKS .............................................................................. 12
8. TAPE RUNNING ADJUSTMENT......................................................................................................15
9. MECHANICAL SECTION ASSEMBLY AND PARTS REPLACEMENT
(DISASSEMBLY AND REASSEMBLE) ........................................................................................... 17
10.ADJUSTING THE ELECTRICAL CIRCUITS .................................................................................... 24
11.USEFUL TIPS ................................................................................................................................... 40
12.SIGNAL FLOW DIAGRAMS ............................................................................................................. 41
13.BLOCK DIAGRAMS..........................................................................................................................44
14.SCHEMATIC DIAGRAMS.................................................................................................................50
15.SEMICONDUCTOR LEAD IDENTIFICATION ................................................................................ 106
16.PRINTED WIRING BOARD ASSEMBLIES .................................................................................... 108
17.REPLACEMENT PARTS LIST........................................................................................................ 119
18.PACKING OF THE SET..................................................................................................................139
MODEL
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
be used.
CONTENTS
VL-FD1U
Page
SHARP CORPORATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
1
VL-FD1U
VTVM
AC SCALE
1.5k ohms
10W
CONNECT TO
KNOWN EARTH
GROUND
TO EXPOSED
METAL PARTS
0.15 µF
TEST PROBE
0.15 µF
SONDE D'ESSAI
VERS PIECES
METALLIQUES
EXPOSEES
VTVM
ECHELLE CA
1.5KOHMS
10W
CONNECTER A
UNE MASSE DE
TERRE CONNUE
1. IMPORTANT SERVICE NOTES
BEFORE RETURNING THE VIDEO CAMERA
RECORDER
Before returning the video camera recorder to the user,
perform the following safety checks.
1. Inspect all lead dress to make certain that leads are
not pinched or that hardware is not lodged between
the chassis and other metal parts in the video camera
recorder.
2. Inspect all protective devices such as non-metallic
control knobs, insulating materials, cabinet backs,
adjustment and compartment covers or shields, isolation resistor/capacitor networks, mechanical insulators etc.
3. To be sure that no shock hazard exists, check for
leakage current in the following manner.
· Plug the AC line cord directly into a 120 volt AC outlet
(Do not use an isolation transformer for this test).
· Using two clip leads, connect a l.5k ohm, 10 watt resistor
paralleled by a 0.15µF capacitor in series with all
exposed metal cabinet parts and a known ground,
such as a water pipe or conduit.
· Use a VTVM or VOM with 1000 ohm per volt, or higher
sensitivity or measure the AC voltage drop across the
resistor (See Diagram).
· Move the resistor connection to all exposed metal
parts having a return path to the chassis (antenna
VL-E990E
connections, metal cabinet, screw heads, knobs and
control shafts, etc.) and measure the AC voltage drop
across the resistor. Reverse the AC plug (a non
polarized adaptor plug must be used but only for the
purpose of completing these checks) on the set and
repeat the AC voltage measurements for each exposed metallic part. Any reading of 0.45V rms (this
corresponds to 0.3mA rms AC.) or more is excessive
and indicates a potential shock hazard which must be
corrected before returning the video camera recorder
to the user.
AVANT DE RENDRE LE MAGNETOSCOPE
Avant de rendre le magnétoscope à l’utilisateur, effectuer
les vérifications de sécurité suivantes.
1. Vérifier toutes les gaines de fil pour être sûr que les fils
2. Vérifier tous les dispositifs de protection tels que les
3. Pour être sûr qu’il n’y a aucun risque de choc électrique,
· Brancher le cordon d’alimentation secteur directement
· Utiliser deux fils à pinces et connecter une résistance
· Utiliser un VTVM ou VOM avec une sensibilité de
· Déposer la connexion de la résistance à toutes les
1. NOTES DE SERVICE IMPORTANTES
ne sont pas pincés ou que le matériel n’est pas coincé
entre le châssis et les autres pièces métalliques dans le
magnétoscope.
boutons de commande non métalliques, les matériaux
d’isolement, le dos du coffret, les couvercles de
compartiment et ajustement ou les boucliers, les
réseaux de résistance / condensateur d’isolement,
Ies isolateurs mécaniques, etc.
vérifier le courant de fuite de la maniére suivante.
dans une prise de courant de 120 volts. (Ne pas
utiliser de transformateur d’isolement pour cet essai).
de 10 watts 1,5 kohm en parallèle avec un
condensateur de 0,15 µF en série avec des pièces du
coffret métallique exposées et une masse de terre
connue telle qu’un tuyau ou un conduit d’eau.
1000 ohms par volt ou plus ou mesurer la chute de
tension CA entre la résistance (voir diagramme).
pièces métalliques exposées ayant un parcours de
retour au châssis (connexions d’antenne, coffret
métallique, tétes de vis, boutons et arbres de commande,
etc.) et mesurer la chute de tension CA entre la résistance.
Inverser la fiche CA (une fiche intermédiaire non polarisée
doit être utilisée à seule fin de faire ces vérifications.) sur
l’appareil et répéter les mesures de tension CA pour
chaque piéce métallique exposée. Toute lecture de
0,45 V rms (ceci correspond à 0,3 mA rms CA) ou plus
est excessive et signale un danger de choc qui doit être
corrigé avant de rendre le magnétoscope à son
utilisateur.
2
VL-E990E
WARNING :TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NO T EXPOSE
THIS APPLIANCE T O WET LOCA TIONS.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CAUTION: TO REDUCE THE RISK OF ELECTRIC
SHOCK. DO NOT REMOVE COVER. NO
USER·SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.
This symbol warns the user of uninsulated
voltage within the unit that can cause dangerous electric shocks.
This symbol alerts the user that there are
important operating and maintenance instructions in the literature accompanying this unit.
CAUTION
This symbol mark means following.
For continued protection against fire hazard, replace only with same type fuse.
(CP901; 1.25A 24V, CP902; 1.25A 24V,
CP903; 1.25A 24V)
VL-FD1U
Camcorder
only
ATTENTION:POUR REDUIRE LES RESQUES D'INCENDIE OU DE CHOC ELECTRIQUE,
NE PAS EXPOSER CET APP AREIL A LA PLUIE OU A L'HUMIDITE.
ATTENTION
RISQUE DE CHOC ELECTRIQUE
NE PAS OUVRIR
ATTENTION: AFIN DE REDUIRE LES RISQUES DE
CHOC ELECTRIQUE, NE PAS RETIRER LE
COUVERCLE, AUCUN ORGANE INTERNE
NE PEUT ETRE REPARE PAR
L'UTIUSATEUR, CONFIER L'APPAREIL A
UN DEPANNEUR QUALIFIE.
Ce symbole signale à l'utilisateur la présence
d'une tension non isolée à l'intérieur de l'appareil
qui peut être la cause de secousses électriques
dangereuses.
Ce symbole avertit l'utilisateur que des instructions importantes relatives à l'utilisation
et àl'entretien se trouvent dans le manuel
accompagnant l'appareil.
ATTENTION
Ce symbole signifie que l'on devra utiliser un fusible de même type (CP901;
1,25A 24V, CP902; 1,25A 24V, CP903;
1,25A 24V) pour assurer la sécurité.
Camcorder
seulement
3
VL-FD1U
VL-E990E
CAUTION
BEFORE BATTERY DESTROY
NICKEL-CADMIUM BATTERY
The following program is available in the United States. Please consult local environmental
authorities concerning the availability of this or other programs in your area.
The RBRCTM Seal
SHARP participates in the RBRCTM* Nickel-Cadmium Battery Recycling Program in the United
States. The RBRCTM Seal on our battery pack contained in our product indicates that SHARP is
voluntarily participating in an industry program to collect and recycle these batteries. The RBRCTM
program provides you with a convenient alternative to placing spent Nickel-Cadmium battery packs into
the trash or municipal waste stream, which is illegal in some areas. At the end of their useful life, the
Nickel-Cadmium battery can be dropped off at the nearest collection center for recycling. For information
on the nearest collection center, call 1-800-8-BATTERY or your local recycling center. If you are located
outside the United States, contact your local authorities for information concerning proper disposal and/
or recycling of this battery. SHARP’s involvement in this program is part of our commitment to protecting
our environment and conserving natural resources.
[Footnote] *RBRCTM is trademark of the Rechargeable Battery Recycling Corporation.
NICKEL-METAL HYDRIDE BATTERY
LITHIUM or LITHIUM-ION BATTERY
SEALED LEAD BATTERY
Battery disposal
Contains the above (Rechargeable) Battery. must be recycled or disposed of properly.
Remove the Battery from the products and contact Federal or State Environmental Agencies for
information on recycling and disposal options.
4
VL-E990E
2. SPECIFICATIONS
Signal System: NTSC standard
Recording System: 2 rotary heads, helical scanning system
Cassette: Digital VCR Mini DV video cassette
Recording/Playback Time: 90 minutes (DVM60, LP mode)
Tape Speed: SP mode; 18.812 mm/second
LP mode; 12.555 mm/second
Pickup Device: 1/4" (6.4mm, effective size: 4.5 mm) CCD image sensor (with approx.
380,000 pixels including optical black)
Lens: 10 × optical/200 × digital power zoom lens (F1.4-3.0, f=4.7-47 mm),
full-range auto focus
Lens Filter Diameter: 30 mm
Monitor: 3.5" (8.9 cm) full-color LCD screen (TFT active matrix)
Microphone: Electret stereo microphone
Color Temperature Compensation: Auto white balance with white balance lock
Minimum Illumination: 7 lux (20 lux measured by EIA standard ) (with gain-up, F1.4)
Video Output Level: 1.0 Vp-p 75-ohm unbalanced
Audio Output Level: –8 dBs, impedance less than 2.2 kohms
Speaker Output: 300 mW
Power Requirement: DC 7.4V
Power Consumption:
Operating Temperature: 32°F to 104°F (0°C to +40°C)
Operating Humidity: 30% to 80%
Storage Temperature: –4°F to 140°F (–20°C to +60°C)
Dimensions (approx.): 6" (W) × 2
Weight (approx.): 1.23 lbs (560 g)
4.8 W (during camera recording in Full Auto mode with zoom motor off
and backlight in normal mode)
7
/32" (H) × 3 19/32" (D)
[152 mm (W) × 56 mm (H) × 91 mm (D)]
(without battery pack, lithium battery and video cassette)
VL-FD1U
AC Adapter/Battery Charger
UADP-0294TAZZ(FD1U)
UADP-0295TAZZ(FD1UT)
UADP-0296TA01(FD1UK)
UADP-0296TAZZ(FD1UW)
Power Requirement: AC 110-240 V, 50/60 Hz
DC Output: 7.3 V
Power Consumption: 10 W
Dimensions (approx.): 3
Weight (approx.): 0.54 lbs (245 g)
Specifications are subject to change without notice.
5
/32" (W) × 125/32" (H) × 37/8" (D)
[80 mm (W) × 45 mm (H) × 98 mm (D)]
SERVICE INFORMATION (For the U.S.)
For the location of the nearest Sharp Authorized Service, or to obtain product literature, accessories,
supplies or customer assistance, please call 1-800-BE SHARP (1-800-237-4277) or visit SHARP's
website (http://www.sharp-usa.com)
5
VL-FD1U
3. PART NAMES AND FUNCTION
For details on the use of each control.
VL-E990E
6
VL-E990E
4. DISASSEMBLY OF THE SET
Note:
Before removing the cabinet, turn off the power supply, and ascertain that the battery has been removed.
1. 5.
(f)
(c)
• Remove the screws ((f)LX-BZ0224TAFC)(1 pc.) and
((c)XiPSC17P04000)(4 pcs.) fixing the camera front cabinet
and camera side cover.
2. 6.
• Open the LCD section and remove the screws ((f)LXBZ0224TAFC)(2 pcs.).
VL-FD1U
(f)
(f)
(f)
(f)
• Remove the screws ((f)LX-BZ0224TAFC)(2 pcs.) fixing the
camera front cabinet.
3. 7.
(f)
• Remove the screw ((f)LX-BZ0224TAFC)(1 pc.) fixing the camera rear cabinet.
4. 8.
(g)
• Remove the screws ((g)LX-BZ0222TAFF) fixing the battery
holder.
(d)
(d)
• Turn the camera and remove the screws ((d) XiPSC17P05000)
(2 pcs.).
FPC
Shielded wire
(f)
(f)
• Remove the screws ((f)LX-BZ0224TAFC)(2 pcs.) fixing the
camera rear cabinet.
• Remove the FPCs (2 pcs.) and shielded wire (1 pc.).
7
VL-FD1U
VL-E990E
9. 13.
• Remove the screws ((e)XiPSF17P02000)(2 pcs.) fixing the
(e)
(e)
(e)
• Remove the screws ((c)XiPSC17P04000)(4 pcs.) fixing the
camera frame coupling metal and the screws
((e)XiPSF17P02000)(2 pcs.) fixing the camera frame C to
detach the camera section.
10. 14.
(e)
(c)
(c)
(c)
camera lower cabinet.
(p)
(c)
(p)
(f)
• Remove the screws ((f)LX-BZ0224TAFC)(2 pcs.) fixing the
• Remove the screws ((p)LX-HZ0050TAFF)(2 pcs.) and the
camera frame and the screw ((e)XiPSF17P02000)(1 pc.) fixing
the camera frame C.
11. 15.
(c)
(c)
(26)
• Remove the screws ((c)XiPSC17P04000)(2 pcs.) and
• Remove the screws ((e)XiPSF17P02000)(1 pc.), ((p)LX-
((26)XASSN17P04000)(1 pc.) fixing the lens front cover.
12. 16.
(c)
(f)
screw ((f)LX-BZ0224TAFC)(1 pc.) fixing the lens to detach the
lens.
(e)
(p)
(f)
HZ0050TAFF)(1 pc.) and ((f)LX-BZ0224TAFC)(2 pcs.) fixing
the VCR side cover.
(b)
(p)
(c)
• Remove the screws ((c)XiPSC17P04000)(2 pcs.) fixing the
camera upper cabinet.
(b)
(b)
• Remove the screws ((p)LX-HZ0050TAFF)(1 pc.) and
((b)XiPSC17P03000)(3 pcs.) fixing the PWB.
8
VL-E990E
VL-FD1U
17.
(r)
(k)
(r)
(r)
• Remove the floating screw ((k)LX-BZ0231TAFE)(1 pc.) and
the screws ((r)LX-BZ0232TAFD)(3 pcs.) fixing the mechanism.
18.
(A11)
<Screws>
(b)XiPSC17P03000 M1.7×3 Silver Small Screw
(c)XiPSC17P04000 M1.7×4 Silver Small Screw
(d)XiPSC17P05000 M1.7×5 Silver Small Screw
(e)XiPSF17P02000 M1.7×2 Black Small Screw
(f)LX-BZ0224TAFC M1.7×2.5 Chrome
(g)LX-BZ0222TAFF M1.7×3 Black
(h)LX-BZ0221TAFC M1.7×3 Chrome
(k)LX-BZ0231TAFE Floating Screw
(n)XiPSF20P04000 M2×4 Black Small Screw
(p)LX-HZ0050TAFF M1.7×4 Black P Tight
(r)LX-BZ0232TAFD Floating Screw
(s)XAPSH17P02000 M1.7×2 Chrome
(A11)LX-BZ0238TAFD M1.7×5 Small Screw
(26)XASSN17P04000 M1.7×4 Flat Head Nickel Screw
• Detach the FPC holder and remove the screws ((A11)LXBZ0238TAFD)(3 pcs.) fixing the tilt.
19.
(c)
(n)
• Remove the screws ((c)XiPSC17P04000)(2 pcs.) fixing the
pop-up cover and the screws ((n)XiPSF20P04000)(2 pcs.)
fixing the LCD hinge.
20.
(s)
(h)
(h)
• Remove the screws ((h)LX-BZ0221TAFC)(2 pcs.) and
((s)XAPSH17P02000)(2 pcs.) fixing the LCD cover.
9
VL-FD1U
5. MECHANISM ADJUSTMENT JIGS AND PARTS
5-1. Mechanism check adjustment jigs
1. PB-use cassette
Torque meter
2. 9DASD-1015
3. DB
* SD-1015
50 or more
ø2
No. 0 cross-bit
1. Torque screwdriver
150mN·m
2. JiGTD1500RTDH
3. CB
1. Torque gauge
2. JiGTG0045
3. CN
For use in VS-REW wind-
*
ing torque measurement.
1. Master plane
2. 9EQMP-VLPD1
3. CL
* For checking reel base
height.
1. Torque gauge head
2. 9EQTGH-DH5000
3. BW
* For use with the above
torque gauge.
1. Height adjustment jig
2. 9DAHG-PD1
3. BZ
* For height adjusting.
<Note: The entries of list>
1. Tension gauge 4N
2. JiGSG0400
3. BK
* For measurement of
pinch roller pressure.
1. Height adjustment
screwdriver
2. 9EQDRiVER-DH5
3. BC
*
For guide roller adjustment.
Configuration
1. Name
2. Part No.
3. Code
* Model, Uses Remarks
1. Dial tension gauge
2. 9DAPTG-10-10W
3. CA
* PTG-10
*
For Tu guide adjustment.
*
For T roller adjustment.
*
Bit shape (see figure below).
Tolerance ± 0.1
2
1.4
Tip thickness 0.5
3
<Miscellaneous>
(1) Slide caliper
(2) Precision screwdrivers
1. Alignment tape – ( I )
2. VR3-GAZXS
3. CF
*
For tape running adjust-
ment.
1. Alignment tape – ( II )
2. VR3-GTZQS
3. CG
*
For SW point adjustment.
* 90ADVC-TAPE can use,
too. (Code CU)
1. For hexagon nut opposite side 3mm bit.
2. 95CM22001
3. BL
* For S guide hexagon
nut installation.
(Phillips head and slotted)
(3) Radio needle-nose pliers
(4) Tweezers
5-2. Parts for regular periodic inspection and maintenance
1. Oil
Cosmo Hydro HV22
2. HV22 : 9EQ-Oil-HV22
3. HV22 : AE
* Cosmo Petroleum K.K.
1. Cleaning paper
2. JiGDUSPER
3. AP
* DUSPER ∑ (SIGMA)
(ozu Co., LTD.)
<How to make jigs for mechanism checking and adjustment>
(1)Reel hub for back tension measurement (Fig. 1)
1) Obtain a commercially available cassette tape reel hub.
(Disassemble the cassette tape and remove the tape from
the reel hub.)
2) Paste one end of a string (about 20cm long) to the reel hub
with (for example) cellophane tape.
3) Paste the weight of about 0.21N on the upper side reel hub.
(2)String for use in pinch roller snap-fit force measurement (Fig. 2)
1) Obtain an approximately 20cm length of commercially available string.
2) Tie the 2 ends together to form a loop.
1. Grease: Moly Coat
YM-103
2. 99FGREASE-YM103
* Dow coaning
1. Screw lock (1401B)
* Three Bond
<Note:
The entries of list>
1. Cleaning liquid:
industrial-use ethyl alcohol
* Commercially avaitable item
1. Extremely thin cotton swab
* Commercially available item
Weight
Reel hub
Fig. 1
Configuration
1. Name
2. Part No.
3. Code
* Model, Uses Remarks
String
String
Fig. 2
10
VL-FD1U
6. INSPECTION AND MAINTENANCE ITEMS AND INTERVALS
In order to keep the mechanical section always in good condition, perform the following inspection and maintenance at regular intervals.
In addition, after repair, perform the following maintenance items regardless of how long the user has been using the unit.
6-1. List of inspection and maintenance items
Inspection and
maintenance location
Tape running section (see section 8-3)
Drum section, Video head
(see section 8-3)
Tape running system
Timing belt
Pinch roller
Capstan motor
Swing arm
S reel base, Tu reel base
Center pulley shaft
Intermediate pulley shaft
Swing arm boss
Drive system
Intermediate gear A shaft,
Intermediate gear B shaft
Loading motor
Mode switch
Abnormal noise
PB · VS/REW winding torque
PB · VS/R · loading back tension
Tu reel base ratchet torque
S reel base no-load torque
Performance checks
500 1,000 1,500 2,000 3,000
<Rollers>
• Replace if there is anything abnormal in the rotation, or if there is run-out
(that becomes large).
<Other than the above>
• Clean the section that contacts the tape (especially the lower drum helical
section). Use the specified cleaning liquid.
Time of use (h)
[Oil] Cosmo Hydro HV22
[Grease] Moly Coat YM-103
• • • Replace. • • • Clean. • • • Lubricate. • • • Check.
Symptoms that indicate
need for maintenance
• Block-type noise
• Head hole clogging
• Tape damage
• The tape fails to run.
• The tape becomes slack.
• Block-type noise
• Abnormal noise
• Abnormal noise
• Cannot eject.
• Fails to enter a mode.
• The tape fails to run.
• The tape becomes slack.
• Tape damage
• The play-back image is
abnormal.
[Screw lock] Three Bond 1401B
[Cleaning liquid] Industrial-use ethyl alcohol
Note:
Replace the drum ass'y if the
video head is cleaned but the
envelope still does not appear.
(When the envelope is normal,
refer to "11. USEFUL TIPS".)
• Replace if there is anything
abnormal.
• Lubricate with oil.
[Oil]
Cosmo Hydro HV22
Note:
• Replace if anything is abnormal
(including the noise).
• Replace any part that fails to
perform within the standard.
Remarks
Apply oil to the shaft, then
wipe lightly with a cloth.
6-2. Precautions
(1) When replacing any part, always replace the cut washer that was
removed with a new one.
(2) This mechanism does not have control adjustment. If the control
cannot be set as required, clean and or replace parts.
(3)On the oil
a) Always use the specified oil. (Using another kind of oil can cause
various kinds of trouble.)
b) Always use clean oil, without any mixed-in dirt, to lubricate bearings.
(Using oil with dirt mixed in can cause the bearings to wear or to
stick.)
c)
One drop of oil is the amount shown in the Fig. 1, on the point of a pin.
(4)Perform circuit repair, tape running adjustment, etc. with the cassette
controller assembly attached to the mechanism.
(5)When operating the mechanism separately, apply voltage to the
loading motor. However, the terminal voltage must be DC3V or less.
(When the mechanism is connected to the main PWB, do not apply
external voltage to the loading motor. It may cause a trouble.)
(Forcing the gears to turn by hand entails danger of breakage.)
If the mechanism is separated from the unit, the capstan motor may rub
and be damaged if spacing under the mechanism is inadequate.
(6)To install the cassette controller, push section A in the Fig. 2. Do not
push anything else.
(7)Do not deform any of the mechanical parts.
Oil
1.5mm diameter or less
Fig. 1
B
•
PUSH
A
11
Fig. 2
VL-FD1U
AB
MIC contacts
7. MECHANICAL ADJUSTMENTS AND CHECKS
The items discussed here relate to general on-site servicing (field servicing). Adjustments and replacements that require
sophisticated facilities, jigs and technology are omitted.
In addition, in order to maintain the characteristics that the unit has when it is new, not only are inspection and maintenance necessary,
but it is absolutely necessary that, for example, the tape not be damaged, and always use jigs for adjustments that require them.
<Precautions>
(1)Always set the power supply and state of the unit as follows Notes for mechanism adjustments and checks.
AC adapter used, with cassette controller assembly
AC adapter used, without cassette controller assembly (Independent Mechanism)
DC3V, without cassette controller assembly (Independent Mechanism)
(2) When the mechanism is connected to the main PWB, do not apply external voltage to the loading motor. It may cause a trouble.
(3) Always run the tape with the cassette controller assembly attached.
7-1. Checking the playback (recording) winding torque AC adapter used, with cassette controller assembly
(1)Set the torque cassette with the cassette controller assembly attached, then, in SP recording mode (playback mode if a signal has
already been recorded in SP mode on the tape), confirm that the torque on the winding side is within the standard.
<Winding torque standard in record (playback) mode>
(If there is torque ripple, read the center value.)
0.70 +0.4/-0.3mN·m, ripple 0.4mN·m or less
7-2. Checking the rewinding playback (VS-REW) winding torque
AC adapter used, without cassette controller assembly (Independent Mechanism)
(1)Remove the cassette controller assembly, press the DOWN switch, using the
adhesive tape and referring to 9-3, operate in the TEST mode (T01) to rewind,
and set the rewinding playback (VS-REW) mode.
(2)Set the torque gauge on the S reel base, press the front end of tension post with
your finger in the arrow A direction so as to ascertain that the winding torque is
as specified. (Check without rotating the torque gauge.)
<Rewinding playback (VS-REW) winding torque standard>
(If torque ripple exists, read its center value.)
1.6 ± 0.6mN·m, ripple 0.5mN·m or less
(3)After checking the winding torque remove the torque gauge, and remove the
adhesive tape used in item (1) above (refer to 9-3). The STANDBY mode is set
automatically.
Fig. 1. Removal of tension band when
measuring the rewinding playback (VS-REW) winding torque
7-3. Checking of reel base height DC3V, without cassette controller assembly (Independent Mechanism)
(1)Remove the cassette controller assembly (refer to 9-2).
(2)Referring to 9-1, apply DC3V to the loading motor and put the system into playback mode.
(3)Taking adequate care so that the master plane does not contact drum, running parts (guide roller, etc.), or the MIC contacts. Fit
the master plane holes to the 2 guides (A and B) in Fig. 2.
(4)Confirm that the heights of the S reel base reel receiving surface and the Tu reel base reel receiving surface below the master plane
top surface are within the set values, using, for example, a slide calliper (Fig. 3).
When checking the S reel base height, press the front end of tension post in the arrow A direction with your finger to release the
tension band, and then check the height in this state (Fig. 1).
(5)If the height is not within set values, replace the washer under the reel base, and adjust as specified.
Note: After the adjustment, make sure that the reel bases rotate smoothly.
Reel receiving
surfaces
2.4 ± 0.1
Reel base height
setting values
Fig. 3
2.4 ± 0.1
Reel base height
setting values
Fig. 2
12
7-4. Back tension torque check and adjustment in record (playback) mode
AC adapter used, with cassette controller assembly
(1)Checking
Set the torque cassette (SD-1015), and make sure in the SP record mode that
the supply side torque is within the standard shown below (or in the playback
mode for the tape on which the signal has been SP-recorded).
<Standard>
(If torque ripple exists, read its center value.)
0.7 ± 0.1mN·m
(2)Adjustment (Fig. 4)
If the value is out of standard range, adjust, using the screw 1 shown in Fig. 4.
1. Loosen the screw 2 slightly.
2. Adjust to turning the screw 1. When back tension is too high, turn the screw
1 counterclockwise (CCW).
When back tension is too low, turn the screw 1 clockwise (CW).
3. After adjustment fix the angle with the screw 2. (At this time take care so as
to prevent excessive tightening.) Apply Screw Lock to the screw 1.
<Caution>
Screw tightening torque: 0.04N·m
Screw2
Screw1
Apply screwlock
Tension roller position (S guide standard)
CCW
CW
Fig. 4. Check (tape exists)
VL-FD1U
0 ± 0.3
7-5. Checking and adjustment of tension roller position in
record (playback) mode
DC3V, without cassette controller assembly (Independent Mechanism)
(1)Checking
Before winding the 60-min tape make sure that the tension roller is in the same
position as S guide as shown in Fig. 4.
If not, take out the tape and adjust in the following procedure.
(2)Adjustment (Fig. 5)
1. Set the playback mode without loading the tape.
2. Loosen the screw 3 slightly (to such an extent that the tension band holder
4 can be moved).
3. If the tension roller is inside from the specified position, shift the tension
band holder 4 in the arrow
the tension band holder in the arrow
direction. If the tension roller is outside, shift
A
direction, and fix with the screw 3.
B
(Proper shift must be 0.2 to 0.6mm outside from the specified position.)
4. Check the position by the procedure described in item (1) Checking above.
5. If the position is not specified position, adjust again.
7-6. Checking of supply S reel base no-load torque
DC3V, without cassette controller assembly (Independent Mechanism)
(1)Remove the cassette controller assembly, then apply DC3V to the loading
motor and put the system into L. start mode (refer to 9-1).
(2)Move the swing arm toward the Tu reel base side.
Be careful not to cause damage to the gears and other parts in the process.
(Fig. 6)
(3)Set a back tension measurement reel hub on the S reel base.
(4)Using a dial tension gauge, pull the string in the A direction, then confirm that the
tension is within the standard.
<FF back tension standard>
(If the tension fluctuates, read its center value.)
30mN or less
Tension roller position (S guide standard)
0.2~0.6mm (Standard)
Tension roller
S guide
Tension band holder 4
Screw 3
Fig. 5. Position adjustment
(tape does not exist)
7-7. Checking of loading back tension
DC3V, without cassette controller assembly (Independent Mechanism)
(1)Remove the cassette controller assembly, then apply DC3V to the loading
motor and put the system into L. start mode.
(refer to 9-1)
(2)Move the swing arm toward the S reel base side. Be careful not to cause
damage to the gears and other parts in the process. (Fig. 7)
(3)Set a back tension measurement reel hub on the Tu reel base.
(4)Using a dial tension gauge, pull the string in the A direction, then confirm that
the tension is within the standard.
13
Move the swing arm
A
toward the Tu reel
base side.
Fig. 6. S reel base no-load torque
measurement method
VL-FD1U
<REW back tension standard>
(If the tension fluctuates, read its center value.)
15 ± 12mN
7-8. Checking of winding Tu reel base ratchet torque
DC3V, without cassette controller assembly (Independent Mechanism)
(1)Remove the cassette controller assembly, then apply DC3V to the loading
motor and put the system into standby mode. (refer to 9-1)
(2)Move the swing arm toward the S reel base side.
Be careful not to cause damage to the gears and other parts in the process.
(Fig. 8)
(3)Set a back tension measurement reel hub on the Tu reel base.
(4)Using a dial tension gauge, pull the string in the A direction, then confirm that
the tension is within the standard.
<Winding Tu reel base ratchet torque standard >
(If the tension fluctuates, read its center value.)
100mN or less
7-9. Checking of rewinding playback (VS-REW) back
tension
DC3V, without cassette controller assembly (Independent Mechanism)
(1)Remove the cassette controller assembly, then apply DC3V to the loading
motor and put the system into rewinding playback (VS-REW) mode. (refer to
9-1)
(2)Move the swing arm toward the S reel base side.
Be careful not to cause damage to the gears and other parts in the process.
(3)Set a torque gauge on the Tu reel base.
(4)Turning the torque gauge to counterclockwise (1 turn for 3 seconds), then
confirm that the torque is within the standard.
<Rewinding playback (VS-REW) back tension standard value>
(If the tension fluctuates, read its center value.)
0.70 +0.6/-0.3mN·m
Move the swing arm
toward the S reel base
side.
A
Fig. 7. Loading back tension measurement
method
7-10.Checking of pinch pressing force
DC3V, without cassette controller assembly (Independent Mechanism)
(1) Set the pinch roller pressing force measuring thread on the pinch lever
(position A , Fig. 9).
(2)Set the mechanism to the playback mode, press the pinch roller against the
capstan axis.
(3)Fit the tension gauge to the pinch roller pressing force measuring thread, pull
in the arrow B direction shown in Fig. 11 to separate a little the pinch roller from
the capstan axis.
(4)Gradually return the pinch roller, and when the pinch roller contacts parallel
the capstan axis, read the value (see Fig. 10) to make sure that the value
conforms to the standard shown below.
<Standard>
1.8 +0.3/-0.5N
<Caution>
After making this measurement, quickly release the system from playback
mode and remove the pinch roller from the capstan shaft. (If the pinch roller
is left fitted onto the capstan shaft for a long time, the pinch roller will be
deformed.)
A
Move the swing arm
toward the S reel base
side.
A
Fig. 8. Winding Tu reel base ratchet torque
measurement method
Pinch roller
Right guide
Capstan shaft
B
Fig. 9
OK
Fig. 10
NG
Fig. 11
14
8. TAPE RUNNING ADJUSTMENT
8-1. Adjustment locations
VL-FD1U
<Replacement parts>
· T roller, arm
· Tu guide, arm
· Slide chassis
<Replacement parts other
than those shown above>
· S guide
· Pole base
· Guide roller
· Drum assembly
· Capstan motor, etc.
Adjust the height of only
replaced parts with the
adjusting jig.
Adjustment procedure 8-2
Height presetting is not
necessary.
Running adjustment preparation
Adjustment
procedure 8-3
Running rough
adjustment
Adjustment
procedure 8-4
Cassette controller
installation
Running final
adjustment
Adjustment
procedure 8-5
8-2. Running height adjustment
· After replacement of T roller or Tu guide adjust the height . (Adjust only the replaced parts.)
· After height adjustment do not turn the T roller. If crease is found on the tape of Tu guide, remove the crease by rotating.
(As for details refer to the “running rough adjustment”.)
· After height adjustment of T roller or Tu guide, apply Screw lock to an end of shaft.
(After replacement of S guide apply Screw lock to same point, too.)
Tu guide
T roller
Height setting
jig
Lower edge
fitting
Master plane
Fit height the par on low edge fitting.
Master plane
Height setting
jig
Height setting
jig
8-3. Preparation for tape running adjustment
Master plane
After setting adjustment jigs, turn T roller
and S guide counterclockwise to 225°.
T roller
Meters, jig… Oscilloscope, Adjustment remote control, Height adjustment screw driver, Alignment tape (for tape running
adjustment, for switch point adjustment), Master plane, Height adjustment jig.
<Method and description>
(1)Remove the cassette controller assembly.
Sup guide roller
Tu guide roller
(2)Clean the tape running surface (especially, adequately clean
the drum surface and the lower drum helicam surface).
(3)Connect an oscilloscope to each TP on the relay circuit board.
Tension roller
Drum
Tu guide
(4)Turn the AC adapter power ON.
(5)Using the adjustment remote control unit, put the system TEST
mode T-05.
(6)Replay the alignment tape for running adjustment, and make
sure that the tape is running in the SP mode.
(7)Check the oscilloscope playback envelope, then, at +1/4 shift
and -1/4 shift, check whether all of it is flat. If it is not, perform
the following adjustment so that it becomes flat.
(Each time you push the PLAY key, the shift will change; +1/4 shift
→ Normal → -1/4 shift → Normal , in order.)
S guide
Pinch roller
Reels
15
VL-FD1U
8-4. Running rough adjustment
(Since this adjustment is performed without cassette controller, put a proper weight so that the cassette does not rise , and make an
adjustment.)
1) Su, Tu guide roller height adjustment
<Method and description>
(1)Loosen the guide roller lock screw, then tighten loosely so that
the roller turns easily.
(2)Replay an alignment tape, and adjust the Sup, Tu guide roller
so that the envelope sides of entrance and exit are flat.
(3)Perform ± 1/4 shift, then, as in the above case, adjust until the
envelope becomes flat.
* If running is difficult for the entrance changed, turn the T roller
to counter clockwise 180°. (refer to Fig. 1)
2) Check of V/SR envelope wave form
<Method and description>
(1)Confirm that the envelope waveform peaks in V/SR mode are
uniform.
(2) If they are not uniform, fine-adjust the guide roller and the Tu
guide.
3) Check of tape wrinkles
<Method and description>
(1)Check that the tape is not distorted between the Tu guide and
pinch in the PB mode and the V/SR mode.
-If crease is found, make an adjustment in the range of ±180°.
-After adjustment apply Screw Lock.
NG
±1/4 shift ±1/4 shift
Entrance side
Turn to 180°
Exit side
Normal
T roller
Fig. 1
Adjust so that A B.
A
Pinch roller
B
Wrinkles
Tu guide
Deformation
Deformation
NG
•
•
4) Check the rising time of the envelope wave form
<Method and description>
(1)Check the rising time of the envelope when switching from V/SR mode to PB mode. (Within 5 sec)
(2)Check the rising time of the envelope when switching from STOP mode to PB mode. (Within 5 sec)
8-5. Final running adjustment
(Perform adjustment without removing the cassette controller.)
1) Adjustment of Sup and Tu guide roller height
<Method and description>
(1)Perform ± 1/4 shift, then if the envelope wave's ratio of MAX.
to MIN. are 60% or less, adjust again the height of guide roller.
(Refer to Fig. 2)
(2)Finally adjust the lock screw of Sup and Tu guide roller.
(3)Once perform unloading and then loading to set the PB mode,
and make sure that the envelope waveform does not change.
Fig. 2
2) Adjustment of playback SWP
<Method and description>
(1)Playback the alignment tape for switch point adjustment.
(2)Perform SWP automatic adjustment with adjustment remote control.
* When replacing the mechanism and drum, adjust the phase and equalizer using the adjustment remote control.
(Refer to "10. ADJUSTMENT THE ELECTRICAL CIRCUIT".)
E
MIN
E
MIN
E
MAX
E
MAX
60 (%)
16
VL-FD1U
9. MECHANICAL SECTION ASSEMBLY AND PARTS REPLACEMENT
(DISASSEMBLY AND REASSEMBLY)
Mechanical section disassembly and reassembly are explained in this section.
For removal of the cabinet, etc., refer to 4. DISASSEMBLY OF THE SET.
<Precautions>
1. Always replace cut washers that have been removed, for example in parts replacement, with new ones.
When reassembling, be careful not to allow screws, washers or foreign matter to enter. They can cause mechanical misoperation.
2.
3. Use the cleaning liquid, oil, grease and screw lock that are specified below. Use of any other kind can cause mechanical
misoperation.
Oil: Cosmo Petroleum : Cosmo Hydro HV22 Screw lock: Three Bond :1401B
Grease: Dow Corning : Moly Coat YM-103 Cleaning liquid: Industrial-use ethyl alcohol
4. Turn the mechanical section over, do not place it on, for example, a desk. Deformation and scratching of mechanical parts can
cause trouble.
9-1. On the mechanical modes
When operating the mechanism separately, apply DC3~4V to the loading motor.
(When the mechanism is connected to the main PWB, do not apply external voltage to the loading motor. It may cause operational problems.)
(1) EJECT mode
The mechanism position to take out the cassette where the
EJECT lever is extremely shifted in the A direction. (It is impossible to lock the cassette controller assembly in this mode.)
EJECT lever
A
EJECT mode diagram
(3)LOADING START mode
This is the mode where the tape is wound around the winding
reel when a cassette with visible wind start leader tape is
loaded. (The brake shifter moves to the left, the S main brake
is separated from the S reel base and the Tu main brake is
separated from the Tu reel base.)
(2)STANDBY mode
The mechanism position to set the cassette where the slide
chassis is at the farthest position from the drum and the
EJECT lever is in clockwise rotated position (position where
the cassette controller assembly can be locked).
EJECT lever
Rotation
Slide chassis
STANDBY mode diagram
(4)REWINDING (VSR) mode
The mechanism position to rewind the tape (fast rewinding
playback). The S and T pole base is pressed, the pinch roller
is pressed to the capstan axis, the brake shifter VSR brake
section engages with the Tu reel base gear.
S pole base
T pole base
Pinch roller
Capstan shaft
S reel base
S main brake
Brake shifter
LOADING START mode diagram
VSR brake section
Tu reel base
Tu reel base
Tu main brake
REWINDING (VSR) mode diagram
17
VL-FD1U
A
B
F
O
E
A
Fig. 4
Down guide positioning
I
Down guide
Slide chassis
K
R
Top cover
J
G
Side plate
H
K
K
L
A
Fig. 4
Down guide
positioning
I
N
C
M
Down guide
Slide chassis
Side plate positioning
Down switch angle
D
(5)PLAYBACK (RECORD, FF, VSF) mode
The mechanism position for playback, record, FF and fast
feed playback.
The pinch roller is pressed to the capstan axis, and the S/Tu
main brake is separated from the S/Tu reel base.
S reel base
Tu main brake
(Not visible)
Pinch roller
S main brake
Tu reel base
PLAYBACK mode diagram
Capstan shaft
(6)STOP mode
The system is in the STOP (Rec Lock in CAMERA mode)
position; the S and the T pole bases are snap-fitted to the drum
base, the S brake is in contact with the S reel base, and the Tu
brake is in contact with the Tu reel base.
S reel base
S main brake
Tu main brake
Tu reel base
(RECORD, FF, VSF)
9-2. Cassette controller assembly
<Removing>
(1)Remove the CAP FPC cover. (Remove the Head amplifier PWB unit and
tighten screw together.)
(2)Apply DC3V to the loading motor to set the standby mode. Press the lock
lever in the arrow direction to move up the cassette controller. (See Fig. 1,
direction
(When the lever is pressed in the direction
controller to release.)
(3)Remove the screws C and E shown in Fig. 2 and Fig. 3, and remove the
Down guide
(4)Remove the screws
side plate
Note) When removing the cassette controller, take care so that the drum motor
FPC provided between the side plate J and the top cover R is not
damaged and so that the drum is not damaged.
or B)
A
.
I
, F, G, and H shown in Fig. 2, 3 and 4, raise the
D
in the direction K to remove it.
J
, gently raise the cassette
A
S pole base
STOP mode diagram
Fig. 1. Lock lever
T pole base
Lock lever
<Installing>
(1)Apply DC3V to the loading motor to set the standby mode.
J
(2)Install the side plate
.
1) Lower the cassette controller assembly in the direction contrary to K in Fig. 4,
and fit the screws G and H as shown in Fig. 4.
Tightening torque 40 ± 4mN·m
Before fitting the screws G and H make sure that the side plate positioning
L
section
engages with the down switch angle in Fig. 2.
Note) When lowering the cassette controller assembly in the direction contrary
to K, place the drum motor FPC between the side plate J and the top
cover
. At this time be careful so that FPC is not damaged. Take care
R
so that the drum is not damaged.
2) In Fig. 2 fit the screws D.
Tightening torque 40 ± 4mN·m
3) In Fig. 3 fit the screw
.
F
Tightening torque 40 ± 4mN·m
(3)Install the down guide I.
1) In Fig. 2 and Fig. 3 engage the slide chassis down guide positioning sections
(4)Attach the CAP FPC cover.
1) Attach the Head amplifier PWB unit and tighten screw together.
and O with the down guide, install with the screws C and E.
N
Tightening torque 40 ± 4mN·m
Tightening torque 40 ± 4mN·m
18
Fig. 2
Fig. 3
Fig. 4. (Fig. from direction A)
VL-FD1U
R
Down switch angle
Adhesive tape
Adhesive tape
Down switch
moving piece
R
Down switch moving
piece
9-3. How to operate with the circuit board without the cassette controller assembly.
In this method, if the procedure is followed incorrectly there is danger of damaging the mechanism and the tape, so except in special
cases, such as when measuring the VSR torque, do not perform this procedure. Normally operate this unit with the cassette controller
assembly attached.
Be sure to follow each caution mentioned.
(1)Apply DC3V to the loading motor to set the EJECT mode.
(2)Remove the down switch angle.
1) In Fig. 5 remove the screws P and Q.
Note) The loading motor solder joint (part T, Fig. 5) of DEW sensor
FPC applied to the down switch angle is not removed. After the
down switch angle is removed, take care so that the DEW
sensor FPC is not broken.
R
(3)Surely secure the moving piece
of down switch as shown in Fig.
6 with the aid of adhesive tape so that the switch is turned on.
(4)Install the down switch angle.
S
Note) To set the REC mode, press the pin of recognition switch
(not
required in other modes).
(5)Set the test mode (T-01) with the adjustment remote controller
without loading the tape. Thereby the mechanism operation is
enabled with the mode key.
(6)To eject, remove the tape (3).
9-4. Phase matching
For the parts listed below, match the phases as shown in Fig. 7.
(1) AHC cam (2) MODE switch (3) Main cam (4) Sub cam
Note) Before disassembling, check the marker positions carefully.
Note)
When installing the engagement gear, make sure that the main cam
and sub cam phase matching hole aligns with the chassis hole.
Note) After phase matching, turn the MODE switch by hand and confirm
that it turns almost one complete turn. (After checking, return it to
its original position.)
T
P
Q
Fig. 5. STANDBY mode
S
Phase matching hole
(for chassis)
Phase matching
mark
MODE switch
Phase matching
mark
AHC cam
Main cam
Phase matching hole
(for chassis)
Coupling gear
Fig. 7
19
Fig. 6
Sub cam
Phase matching hole
(for chassis)
VL-FD1U
305
311
314
462
306
386
9-5. Reassembly
9-5-1. Reassembly in side of the main chassis.
Note) Numbers before part names are given as a guide to the order of assembly.
As for greasing/oiling/cleaning places refer to the attached drawings (Grease/Oil application Fig. 1, 2).
1.
(1) Pinch control lever
2.
(2) Mechanism fixing angle
assembly (Rear surface)
B-4
Mode FPC
Groove grease
303
B-3
314
B-5
B-1
441
A-1
B-6
A-2
463
(2) Pinch drive lever
361
301
Main chassis assembly
(Front surface)
B-2
(1) Mode switch
A-3
Note) The numbers following
A and B indicate the
screw tightening order.
4.
(1)Slide chassis guide
Groove grease
(3) Loading lever
To cam groove
(2) Shifter drive
lever assembly
C
5.
(2) Center pulley assembly
(3) Timing belt
(5) Capstan motor
D
D
D
Drawing part
grease
D
B
B
(4) Tu guide cam
Mechanism fixing angle
To cam groove
Item
Tightening torque
B S Tight · M1.4 x L2 70mN·m 2
C CWø1.2-ø3.0-t0.25 1
D Special screw · 40mN·m 4
M1.4 x L1.6
312
364
365
B
459
367
421
(4) Intermediate gear angle
sub assembly
366
(1) Intermediate pulley
assembly
Quantity
3.
Cam groove grease
(3) Main cam
Positioning
hole
(2) Lock lever guide
(5) Coupling
gear
(4) Sub cam
Positioning hole
304
370
371
379
Main chassis assembly
301
(Rear surface)
Item
A S Tight · M1.4 x L3 70mN·m 3
B S Tight · M1.4 x L2 70mN·m 6
B
(1) EJECT
lever
(7) T arm
control lever
Groove
grease
302
309
To cam
groove
C
C
Item
B S Tight · M1.4 x L2 70mN·m 1
C CWø1.2-ø3.0-t0.25 2
Tightening torque
(8) AHC control lever
310
To cam groove
(6) AHC cam
369
Tightening torque
Quantity
314
Quantity
Phase match check
6.
Item
Tightening torque
B S Tight · M1.4 x L2 70mN·m 1
E
E
Enter part of
convexity
rear surface
(1) Guide rail sub
assembly
Item
Guide rail sub assembly
(Rear surface)
Tightening torque
E Special screw · 40mN·m 2
M1.4 x L1.5
Quantity
Phase match check
Quantity
20
7.
S pole base assembly
S loading arm assembly
S pressure spring
8.
(3) Loading motor
assembly
395
S loading gear
461
Guide roller assembly
454
G
451
452
Tu pole base assembly
G
307
362
F
F
372
Item
Guide rail
308
Tu loading arm assembly
396
Tu pressure spring
Tu loading gear
373
Tightening torque
F CWø0.7-ø2.2-t0.25 2
G Special screw · 5mN·m 2
(Tentative tightening)
A
399
Grease
(Front surface, rear surface,
groove side surface)
Grease
(Rear surface,
groove side
H
surface)
A
M1.2 x L1.8
A
A
Quantity
(2) PB guide spring
9.
(3) Dew FPC cover
(2) Down switch
attachment
angle sub
assembly
A
Positioning
325
Grease
P
SL chassis holder S
378
Solder-joint
Positioning
Item
Tightening torque
A S Tight · M1.4 x L3 70mN·m 1
P S Tight · M1.4 x L4 70mN·m 1
VL-FD1U
Quantity
453
(1) Drum base sub assembly
Item
Tightening torque
Quantity
A S Tight · M1.4 x L3 70mN·m 4
Special screw with step
H
· 70mN·m 1
M1.4 x L6.25
9-5-2. Reassembly in side of the Slide chassis.
Note) Numbers before part names are given as a guide to the order of assembly.
As for greasing/oiling/cleaning places refer to the attached drawings (Grease/Oil application Fig. 3, 4).
Fit the main brake SPR from
above, and close with the hook.
(4) Main brake
SPR.
391
(3) I
Grease
(3) S main
brake
374
(5) I
(2) Brake shifter
Ass'y
353
(7) S cassette
stay
(5) Tu main
brake
375
(7) B
376
391
(6) Main brake
SPR.
(8) J ( 411 ~ 415 )
(8) S reel base Ass'y
456
(9) J ( 411 ~ 415 )
(9) Tu reel base Ass'y
457
(1) Slide chassis assembly
330
with sensor FPC
Sensor FPC guide
337
B S Tight · M1.4 x L2 40mN·m 1
I CWø0.7-ø1.8-t0.1 2
J Wø1.2-ø2.5-t0.3 2
Item
Tightening torque
Quantity
21
VL-FD1U
382
(6) T roller upper flange
455
(6) T roller Ass'y
384
(6) F
(7) K
354
(7) Tension band
Ass'y
T arm SPR.
392
(7) C
(5) T spring
hanging
ANG
(5) B
(6) T roller inner
383
(6) T roller bottom flange
397
(6) Guide adjustment SPR.
351
(6) Tension arm Ass'y
(9) S guide hexagon
nut
(5) L
431
356
428
385
(9) S guide
sleeve
(4) Pinch lever Ass'y
458
Grease
(1) Tu guide
arm SPR.
394
(3) Pinch lever
return SPR.
393
(2) T roller upper
382
flange
(2) Tu pole
381
(2) T roller bottom
383
flange
(2) Guide adjustment
397
SPR.
(2) Tu guide
352
arm Ass'y
B S Tight · M1.4 x L2 1
(10) Swing arm release
lever fixing screw M
(10) Swing arm
release lever
(10) Swing arm
release SPR.
420
357
390
(8) K
F
F
F
F
C CWø1.2-ø3-t0.25 1
F CWø0.7-ø2.2-t0.25 3
L Type 2 minuteness
K
M
9-5-3. Main chassis assembly and slide chassis assembly assembling method
(1)Set the L/S mode (see the figure below).
(2)Insert the slide chassis side operation pins (
main chassis side, move the slide chassis in the arrow direction, using
into the groove of slide chassis, and install with the 4 screws.
D
D
D
B
D
tension arm, 2 Tu guide arm, 3 pinch lever) in the position shown below at the
1
to E as guides, insert the loading lever operation pin
A
(3) FPC cover
(2) N
377
(2) Reel cover
Ass'y
355
Note1) Be careful not to scratch or dent in
the parts ( 381, 382, 383, 384, and
455 ), be careful not to deform the
tension band in handling it.
Note2) Be careful not to deform to tightening
the 428 coat the Screw lock to the
point of shaft.
Item
M1.4 x L1
Special head screw ·
M1.4 x L2
Special screw with step
M1.4 x L1
Tightening torque
·
40mN·m 1
40mN·m 2
· 40mN·m 1
* 438 Tightening torque
70 ± 7mN·m
Quantity
B
1
4
D
A
C
3
E
2
Assembly Mode
Item
B S Tight · M1.4 x L2 40mN·m 1
D Special screw · 40mN·m 4
M1.4 x L1.6
Tightening torque
Quantity
(2) Cap FPC cover
326
(1) I
Oil
Through the groove in the cassette control.
(1) D
(1) D
313
500
(1) D
325
(3) Dew FPC Stopper
(1) Swing arm Ass'y
398
438
I CWø0.7-ø1.8-t0.1 1
N
(1) Head amplifier PWB unit
D Special screw · 40mN·m 3
(4) Drum Ass'y
470
(4) Drum fixing SPR
(4) Drum installation screw
Item
Type 1 minuteness ·
M1.4 x L1
Item
M1.4 x L1.6
• Numbers before part names
are given as a guide to the
order of assembly.
• When treating the sensor
FPC wire, pay attention to
the part A shown in Fig. 6.
• Oil application place is
shown in Fig. 5.
Tightening torque
40mN·m 1
Tightening torque
Quantity
Quantity
22
VL-FD1U
GREASE/OIL APPLICATION
: Oiling
Including groove
side surface
Fig. 1. Side of the main chassis
O
: Greasing
G
: Greasing
303 Pinch control lever
312 Intermediate gear angle
(Front surface · rear
(Rear surface · groove
side surface)
453 Drum base assembly 311 Tu guide cam
surface · groove
side surface)
304 Main cam
307 S loading arm
Enabled after
assembling
Fig. 2. Side of the main chassis
From rear
surface side
From rear
surface side
Enabled after
assembling
306 Loading lever
308 Tu loading arm
309 T arm control lever
: Oiling
O
: Greasing
G
: Greasing
: Greasing
G
: Greasing
Fig. 5. After joining the main chassis and slide chassis
Fig. 3. Side of the slide chassis
353 Brake shifter
: Greasing
G
: Greasing
458 Pinch lever
Fig. 4. Side of the slide chassis
9-6. Removing the cassette
(1)Apply DC3V to the loading motor unload slightly.
(2)After the tape is slackened, turn the rotor (lower side of mechanism)
of capstan motor to tighten the tape. (Arrow direction, Fig. 1)
(3) Repeat the operations (1) and (2). After the pole base has been
completely unloaded, ascertain that the tape is not loose.
(4)Finally apply again DC3V to the loading motor, so that the cassette
controller ejects.
(5)Take out the cassette.
Note) DC3V is applied to the loading motor as shown Fig. 1. Then,
the mechanism moves in the unloading direction.
313 Swing arm
Fig. 6. Sensor FPC wiring
Minus pole
Plus pole
Loading motor
:
Oiling
O
Sensor FPC
Part A
Capstan motor rotor rotation direction
(from rear side of mechanism)
23
Fig. 1
VL-FD1U
10. ADJUSTING THE ELECTRICAL CIRCUITS
Before starting the electric circuit adjustment
• The adjustment methods described herein are used, in most cases, when the expendable mechanical parts, including
the video head, have been replaced, at which time the electrical circuits need to be readjusted. Before adjusting the
electrical circuits, make sure that the mechanism works properly (i.e., the mechanism is properly adjusted). Incase of
the occurrence of any problem to the electrical circuits, be sure to use the specified measuring instruments to locate
the area to which the problem is occurring, and then take the necessary action, including repair, replacement or
adjustment, exactly as instructed in the electrical adjustment methods that will follow.
Do not attempt to make adjustments without using the proper measuring instruments.
• This machine is configured so that the electrical circuits inside its PWB unit are composed, for the most part, of highdensity, small surface-mounted component parts for downsized machine body.
To perform repair service or parts replacement, do so using a soldering iron, but in as short a time as possible; this is
because surface-mounted component parts are generally so small in size and susceptible to heat, as compared with
the large discrete parts used in TV sets, desk-top video decks, etc., that attempting to heat their electrodes for a longer
time than is necessary with a soldering iron may result in their becoming defective.
This applies particularly when replacing the laminated chip capacitors.
For this purpose, ceramic soldering irons with a temperature regulator are recommended (iron tip temperature 250°C
and soldering time 5 seconds or shorter).
Chip ID as per Digital Interface IEEE1394 Standard
The VL-FD1U and other models that follow are newly equipped with the digital interface function. The Digital Interface
IEEE1394 Standard stipulates that each set with the digital interface function be given its specific ID number. The ID
number is written on the E2PROM of the set while it is manufactured. If the E2PROM alone or the PWB having this E2PROM
on it has been replaced for repair purpose, it is necessary to write a new ID number again. (Note that any replacement
part does not have an ID number yet.)
Accordingly, the repair engineer must obtain the new ID number.
VL-SD20U
Writing a Chip ID number as per Digital Interface IEEE1394 Standard
Head amplifier PWB
IC302
IC301
If the IC302 (E2PROM) or the head amplifier PWB has been replaced, it is necessary to write a new ID number. (Note that
any replacement part does not have an ID number yet.)
Obtain a new ID number from the service department of sales company. Take the following steps to write the ID number
on the E2PROM.
■ Manual for obtaining and handlig IEEE1394 ID number
1. Access the intranet URL for the number below.
URL: http://www.rog.kami.sharp.co.jp/quics/e_index.html
2. Now enter User ID and Password, then click Login .
*ID and Password should be same as for "PARTS PEICE LIST".
24
VL-SD20U
■ ID code is acquired
1. Connect with the EUI48/64 ID code control system.
(1) Start the Internet Explorer or Netscape Navigator.
(2) Access the following address.
(URL:http://www.rcg.kami.sharp.co.jp/quics/e_index.html)
Select the "EUI48/64 ID code control system" from the "Service" item.
Note: If you want to establish a connection by directly inputting the URL, please input the following.
URL:http://www1.rcg.kami.sharp.co.jp:7000/adrs_agt/adrs_dba/ide00010.main
The login screen will appear.
VL-FD1U
(3) For the [User ID], input the [Password].
Click on [Login].
(4) Click on [EUI 64 (IEEE 1394)] from the [1. Application for acquisition of ID].
Click
(5) Click on [Repair use].
Click
25
VL-FD1U
(6) Input the necessary information for the application.
VL-SD20U
For the indispensable input items, be sure to input them.
Select the [Group/company] and [Kind name] from the list.
Input the [Model name].
Input the [Serial number].
Input the [Site/department of repair].
For the input items when making each application, refer to the "Input item list for the ID acquisition application".
(7) Click on [motion].
The confirmation screen will appear.
(8) Click on [Yes].
5. Print the application result.
(1) Print out the application result screen.
Control the application result as evidence.
To print it, select "Print (P)" from the "File (F)" in the menu bar or click on the print button in the tool bar.
(2) Click on [Menu] to complete the application.
If you create applications in succession, repeat steps (1)~(8).
To complete it, click on [End] in the menu screen.
26
VL-SD20U
VL-FD1U Specifications of service jigs
VL-FD1U
No. Connection section Part cord
1 Main–LCD Panel CPWBH2923TA01 AS
2 Camera Head– QPWBH2924TAZZ AL
Audio I/O PWB
3 Main–Audio I/O PWB CPWBH2922TA01 AX
4 Main–Battery Terminal QTANZ0143TAZZ AU
5 Main–Envelope Check RUNTK0348TAZZ BE
6 Main–Eject SW Unit QSW-Z0333TAZZ AK
7 Main–Jog SW Unit QSW-Z0332TAZZ AM
8 Main–Mechanism QCNW-1832TAZZ BV
VL-FD1U Service jig configuration
Price
code
LCD Panel
Zoom SW
QSW-Z0332TAZZ
Jog SW
7
Unit
Eject SW
6
Unit
QSW-Z0333TAZZ
for the Envelope
check jig.
RUNTK0348TAZZ
1
CPWBH2923TA01
LCD Tilt FPC
SC800
SC900
SC1001
QPWBH2924TAZZ
Lens Tilt FPC
CPWBH2922TA01
3
Camera Tilt Unit
SC2401
SC6704
MAIN
SC3301
5
Battery Terminal
Unit
QTANZ0143TAZZ
4
CAMERA HEAD
PWB
2
AUDIO I/O
PWB
Lens
Turn detection
8
Mecha VCR
Mechanism
27
VL-FD1U
[TEST POINT]
VL-SD20U
(Wiring board diagram: Main Side B)(Wiring board diagram: Main Side A)
TL1907
TL1916
R1960
L1905
R1963
FB1902
R1964
D961
D963
D962
L1901
D960
R1932
TL1906
C971
C9924
Q930
Q990
C970
C969
R999
C991
L960
TL1902
TL1903
C1901
R1911
R1914
L961
Q1904
TL908
TL909
TL910
Q1903
L962
R1909
R1910
C974 C973
R1913
L963
R1912
C975
C972
R9913
Q9901
Q951
Q950
R906
R904
R905
Q910
R1900
D950
Q1900
R903
R1937
C960
C3454
C901
C900
R902
D3401
R3405
R3484
D1901
Z2
R3456
TL3406
C3460
R3454
C3470
R3455
C769
C3458
C3467
R3479
IC707
C3455
R3450
R3478
R3470
Q3404
TL3408
C3457
R3453
Q3408
R3485
R3451
IC3404
R3468
R3499
IC4701
C4701
IC408
L2402
C2402
R2403
FB2402
J2401
IC1903
C1912
R1966
C1919
C968
C1902
TL823TL912
C990
Q940
Q1921
C1928
Q980
Q9902
R1916R1917
C9925
C1914
C983
R1919
R1939
R1938
R1941
R1918
IC1904
IC1901
C1909
R1923
C1913
TL1909
C1910
R1924
C1907
TL1908
TL1905
C1915
Q1913
R1927R1928
R471
TL1915
R463
R3462
R462
R413
FB1901
R3463
TL416
L1904
C1911
C3456
R405
R3471
R3457C3459
L3405
R3469
C3475R3452C3453
IC3403
C3452
C433C444
L912
R403
C962
C401
C1920
C4702
L1907
C468
TL1912
C462C463C465
C1608
C1607
L1601
R1602
C1605C1606
TL1904
R1979
R1961
R1962
L1902
R1958
R1965
R1959
C1908
R1955
TL1911
TL1910
C1903
Q1920
R1957
R1954
IC204
R1956
C1610
C229
R214
C230
Q970
IC4452
R1604
C1611
C1609
IC203
IC4451
C4455
R213
R751
Q1907
R4450
D702
C754
X4452
C4456
R4459 R4458
C4458
C452
Q1908
R443
IC405
R446
IC702
R444
R445
R758
C751
R453
R442
C451
R759
R771
R757
C453
C763
TL417
R464
TL4439
C407
C750
C758
C757
C417
R404
TL410
R419
C424
C422
TL403
TL411
IC452
TL404TL406
TL419
TL421
TL418
TL449TL448
TL447
R435
R472
TL405
TL450
C420
R469
R438
C429
C436
D404
R451R452
FB456
C456
FL403
C447
R437
C445
IC407
R423
R429
R421
C427
R428
R470R402
C470C428
R426
D403
R436
C435
C4454
C4453
R4454
R4453
R4455
D4452
X4451
C467
R4451
C4451
TL4451
C4452
D4451
IC4461
R4469
R4465
R4464
C460
Q4461
Q4462
C4463
R4457
C4462
R4461
R4462
J7401
R4432
C1604
C1602
IC1602
C1617
C1612
C1615
C1616
C1613
L202
C227
C448
L203
C228
R440
R441
C450
TL4411
R409
TL4414
R410
TL4412
C412
C413
TL412
R430
R401
TL420
TL422
TL423
C411
C403
X401
C419 R418 R417 C418
TL4421
L4451
R4452 R4456
C4437
C4424
C4422
C4423
TL4417
TL4416
C4420
TL4413
TL4410
R4460
C4411 C4433C4443
C4466
C4467
C4465
C4464
R4437
R4467
R4468
R4463
C4461
Q4431
R4431
Q4432
C155
C210
C1603
C1601
R1662
C1614
R1603
TL4433
TL210
TL209
TL208
TL4434
TL906
TL207
C449
C404
R407
R411R412
R480
R483
C7825
C7828
TL4428
TL4426
Q4434
R4435
L4461
R4421R4422
C208
FB202 FB201
C222
C211 C223
TL206
L402
C405
R416
IC401
D472
C7808
C7810
C7830
C7829
C7811
C7836
TL4418
TL4425
R4404
R4436
C4448
R4405
C4405
R4420
J701
C209 C215 C217
R202
R206
R204
R205
R210
R212
L401
C402
R414
L471
C474
R476
C472
D471
R477 R478
C473
R7841
R7842
R7843
C7837
TL4422
C4444
TL4424
TL4423
IC4401
R4406
Q4433
R4415C4406
C4449
L4401
R4407
C4412
C4404
R4423R4408
R4425
R4424
TL205
IC201
C216
TL212TL215TL213
R203
R207
C2800
R406
R768
R473
R474
R420
R427
R425
R422
R7854
R7855
R7851
D7800
C7815
TL4437
C7813
R4416R4411
R4413R4410
R4412R4409
L4402
C4410
R4477
R4470
R4476
R4489
R4478
TL6721
R4473
TL6720
R4471
TL6719
TL6723
TL211
L2801
L2800
C408
Q401
C416
C7842
R7827
Q4471
IC202
C214
TL204
TL214
C2801
C409
IC402
R7846
R7845
Q402
R424
L7801
TL4436
TL4438
TL4409
TL4405
TL4404
TL4403
TL4402
R1982
C4419C4417
C4473
R4474
TL201TL202
C202
C201
TL4441
C207
TL203
R408
R201
TL4435
C226
L201
C204
R211
IC2800
TL2800
TL2801
TL2802
R2803
C7841
R7850
R7849R2804
R7848
R7844
C7840
R7847
R7853
FB7800
C7839
IC7800
R4403
C4403
C7844
C7838
R7852
L1402
TL1410
C7831
C7821
C1402
R7813
C7816
R7814
C7822
C7807
C7806
C1415
R7812
TL4440
R4414
R7805
C7805
C1407
R7810
C7801
R7809
R7804
R7811
R7802
C1406
C7804
R7800
R7803
C4430
R7801
C4421
C7802
R7807
C1411
R7808
R7806
TL4407
C7800
TL4401
C1431
L7800
R4402
C4402
C4401
R4401
Q4482
Q4472
C4481
R4487
R4484
R4488
C4485
R4485
Q4481
C4482
R4483
R4482
R4486
R4475
C4484
P6701
R1809
D1801
R1814
C1809
D1802
R1815
R1816 C1806
C1803
R1817
C1805
R1805
R1810
C1808
L151
R156
Q1801
C1801
R1807
R1812
C213
Q1802
R1808
TL1801
C2804
R1452
C1412
C1432
C1437
R1440
R1441
R1453
R1800
TL1800
R769
Q1800
Q704
C767
D1800
C765
C766
R770
L2802
C2805
C2808
C1800
C1405
R1408
R1415
C1409
R1409
IC1401
R1451
R1421
C1418
C1417
R1462
D1401
R1461
IC1431
R1439
TL1431
Q1434
R1438
R1442 C1436
R1811
R1819
R1804
R1802
TL1801
C1810
R1803
R1801
L1801
R1818
R2802
L2803
L2804 C1804
C2806
C2807
C2809
C2810
R2801
R2800
TL2801
DAC full-scale
TL2802
DAC full-scale
C1403
R1410
L1403
C1408
R1407
R1418
R1411
C1404
Q1404
L1401
C1401
R1417
R1405
Q1402
R1406
C1413
Q1432
C1410
R1416
C1414
C1416
D1402
R1431C1433
R1434R1433
R1435
TL1412
Q1433
R1436
R1403
R1404
TL1411
R1413
R1414
C1438
C1439
R1402
C1441
R1419
COM-amplitude
TL2800
DAC full-scale
C1435R1437C1434R1432
FL703
IC706
C2803
C2802
R215
R7857
R7856
TL4408
R748
R746
R745
C7843
Q1401
R1401
Q1405
L1404
L1431
C1440
Q1431
L4481
C4483
TL6722
C4472
TL807
VCO free-run
P151
C159
C158
C156C157
TL151
C160
C162 C161
IC151
R154
C163
C167
Q151
TL152
R9960
R9954
R157
C168
R5820
TL807
TL827
TL825
R5821
R5819
TL828
R5807
TL826
R5808
TL808
TL806
R5806
TL805
R5805
TL804
R5804
TL831
TL802
TL803
TL832
TL801
R5802
R5803
SC800
R5800
TL800
TL816
TL817
R5811
R5812
TL818
R5813
TL819
TL809
C7722
IC7703
C7705
R7705
C7702
C7709
R9970
TL822
C9906
R9964
R9959
R9968
TL821
R5818
R5817
TL820
TL824
C9904
C9900
R9952R9951
R9953
C9907
R9961
IC902
R9995
R9957
C9902
R9962
C9905
TL829
C9903
TL913
C9901
R5822
TL1917
TL815
R9978
R9967
R9994
R9966
C9912
C9909
R9924R9992
C9908R9963
R9965R9956
R9980
R9969
C9923
TL830
TL814
TL710
TL812
R740
TL813
R735
R741
R731
TL810
R5810
R5801
C738
R5809
TL811
C732
C739
C731
C717 R744 R734
TL711
C722 C709 C725
C7720
R7702
C706
C7707
C7710
FL701
R707 C714
C7712
IC7701
C7704
C7711
TL6724
R7701C7708
C7706
R7708
R7709
R7707
IC7702
C7717
L7702
TL6726
TL6725
R7711 R7712
TL6716
TL6714
SC6704
TL6712TL6710TL6727TL6718
TL1053
TL1051
TL1028
C165
C153
TL1052
TL1050
TL907
TL1026
C154
TL1025
R151
R152
R153
TL1018
TL1019
TL1021
TL1022
TL1024
TL1020
TL1007
TL1005
TL1023
TL1006
C164
R155
R9979
R9984
R9977
R9987
R9973
R9981
R9988
R9985
R9975
C9915
R990
R991
C951
C9917
R968
C937
C938
C936
C9922
R965
R967
C935
R9990
R964
R963
C934
R961
C933
R9991C9919C9920
R957
C9921
C931
R9986
R9982
C9913
R9983
R959 R960 R962 R966
C939
C932
R958
C9916
C9914
R9993
R971
D971
C745
R954
R972
R970
R969
R955
C741
Q702
R733 C930
R732
R742
R739
R738
R737
C740 R956 R953
R730
R728
IC701
TL701
C708
R721
R710
R706
R703
C712
C756R754
C760C764
C759C710
R755R752
R708
TL716
R711 C704
R702
R750 R753
R756
IC703
C7713
C755
C753
C7714 C7716 C7715C7407R7406
C7701
L7701
R7714
C7403
FB7402
R7713
C7419
R760
R762
C7718
TL753
C768
R765
R764
C7719
Q750
R761
TL6702
TL6704
TL6706
R763
FB701
TL6708
FB702
TL6715
TL6713
TL6711
TL6709
TL6707
TL6705
TL752
TL751
TL6701
TL6703
TL750
C166
TL1035
TL1033
TL1031TL1054
TL1032
TL1029
SC1001
TL1003
TL1002
TL1004
TL1001
C952
C953
R994
IC901
C940
C941
Q703
C742
C730
C729
C726
C728
C724
TL714
R719
C721
C718
R716
R714
R705
R715
TL3348
R713
R704
C705
R7472
IC7402
C752
R7441
IC7401
C7427
C7421
R7422
R7425
X7401
TL1042
IC152
TL1043
Q920
C151
C981
C152
TL1045
TL1048
TL1038
TL1037
TL1046
TL1049
TL1036
TL1034
TL1044
TL1047
TL1041
TL1040
TL1039
TL1017
C984
TL1030
TL1027
TL1009
TL1008
TL1012
TL1015
TL1011
TL1016
C987
C747
TL1010
TL1013
TL1014
C746
R998
R997
C948
R993
R995
R996
R989
L970
R988
C950C954 C955
C949
C947
R987
R986
R985
R983
C946
L901
R984
R982
R981
C945
C944
R980
R977
C965
C964
Q900
R978
C943
R976
R975
R979
C942
L922
R216
D703
L900
C985
C988
TL911
L971
R723
C734
C963
X702
C736
TL703
R722
R729
C715
R718
R747
TL715
R7443
R7423
C7423
L902
C733
R725
R720
D701
Q701
R743
IC705
R7442
R7444
R7447
C7426
C7425
R7426
R7450R7427C7424
R7402
TL6717
C966
R724
C735
R726
C737
R709
R717
R7446
R7424
C3474
L1906
C1916
R749
TL3322
R727
C702 R712
C7405
R7421
R7434
L3402
L701
L702
R1922
C3436
L3404
C701
C703
IC704
C1732
L1702
L1701
C762
C761
R1716
R1703
R1704
C1702
C1703
R1740
R701
C1707
C1708
C1709
R7445
R7448
C1711
C1713
IC1702
C1717
C1715
C1718
TL1705
R1710
TL1703
C1721
TL1704
C1725
C1723
C1727
R1713
R1714
C1724
R7418 C7416
C7414
R7420
R7419
C1729
C1730
R7413
R7417
C7413
R7401
R7416
D7402
R7415
C7417
Q7403
D7401
C7402
FB7401
R7433
R7431
R7436
Q7401
TL7404
TL7405TL7403
TL7402
TL7401
L981
L980
L921
C961
C986
L920
C3473
R3480
TL3404
R3488
R3445
C3476
C3432
C3416
IC3402
R3417
R3472R3473
R3446
C3479
TH3401
R3416
FL3403
C3425
C3407
L3401
C3412
C3401
C3402
TL3344
R1720
R1721
R3401
R1722
Q1701
TL3346
TL3358
C1704
TL3357
R1715
R1706R1702
R1707R1705
TL1701
TL1702
R1701
R1712
R1711
C1726
C1728
Q7402
R7403
R2407
FB2406
FB2408
TL6729
TL6731
FB2410
TL2405
R2409
TL2408
TL2410
FB2405
TL2407
PCO D/A-C
C967
Q960
T900
L991
R3415
R3413
R3407
SC2401
TL2404
TL915
TL914
R3424
R3429
IC3401
R3414
R3434
R3406
C3410
SC3301
TL6732
C992
L930
C989
L990
CP2
TL916
TL900
SC900
TL901
TL902
C3439
C3428
R3425
C3430
R3427
R3435
R3482
C3444
C3434
C3471
R3481
TL3410
R3423
TL3403
R3420
C3421
C3422
C3419
C3417
C3420
R3411
FL3401
C3466
C3411
R3410
C3465
C3414
C3409
TL3319
R3441
C3405
TL3366
Q3401
TL3320
TL3323
R3458
R3465
TL3367
Q3407
R3498
TL3315
C3441
C3440
C3442
R3489
Q3406
R3459R3464
R3496
TL3309
Q3405
TL3308
R3460
R3494
TL3307
TL3303
IC3405
TL3324
R3495R3466R3467
TL3314
R3475
R3474
Z1
C2401
TL6733
TL2402
TL6728
TL2401
TL2406
TL2409
PCO D/A-Y
R901
CP3
TL905
R900
TL903
TL904
CP1
R3490
R3436
R3443
R3491
C3429
R3449
Q3403
R3477
C3423
R3437C3431
C3480C3481
TL3401
R3412
FL3402
R3442
R3497
C3462 C3443
R2402
R2404
R2405
TL2403
R2401
L2401
FB2401
C982
C993
L940
L911
L910
R3432
R3486
R3426
C3438
R3428
C3433
C3426
C3424
C3477
R3419
R3418
C3415
C3478
C3418 R3421
R3409
C3408
R3402
TL3365
C3413
R3404
C3403
TL3321
TL3360
TL3356
C1706
C1710
C1712
C1714
R1708
R1709
C1716
C1719
C1720
C1722
TL3337
TL3336
TL3335
TL3334
TL3343TL3310TL3345
TL3411
TL2407
TL2409
TL6730
(Wiring board diagram: Audio I/O Side B)
BAT2602
R669
R628
C619
C621
C620
R624
R626
R638
C631
C632
C633
C634
R613
R654
TL2640
R636
C645
TL2637
TL2645
R635
TL2644
TL2652
TL2647
TL2648
TL2638
TL2650
TL603
EE level
Frequency character
SC2601
BAT2601
R617
C610
C611
TL602
C607
C608
TL603
TL2639
L602
TL2636
C638
TL2641
TL604
C651
TL2656
TL2630
R656
TL2651
C646
R640
C637
TL604
EE level
Frequency character
L601
R647
R651
R650
TL2628
C650
TL601
EE level
Frequency character
R666
C609
R655
Q603
R662
TL2631
Q605
R629
TL2649
TL2654
P2604
TL2627
TL2653
C605
TL2629
TL605
EE level
Frequency character
FB602
TL2646
TL605
R688
R687
TL601
TL2658
TL2661
TL2655
TL614
FB601
C1501
S1501
TL2659
TL2660
TL616
TL617
FB603
TL615
TL2635
TL2657
TL2632
Z2
SC2606
TL2633
TL2634
TL2606
TL2616
TL2617
TL2615
TL607
TL606
TL2607
TL2625
TL2624
TL2618
TL2620
TL2610
TL2622
TL2612
SC2607
TL2626
TL2611
TL2608
P602
TL2621
TL2619
TL2614
TL2613
TL2609
TL2604
TL2603
TL2602
TL2601
TL2623
TL2605
28
VL-SD20U
[Making adjustments]
Adjusting the servo system controller and related parts
1. Setting the system codes
Replacement of IC7702 (FLASH MEMORY) requires the following data to be set in this order.
[Procedure]
Set the unit to the VCR mode and set the data for each address.
Code 1. Model code 2. Destination 3. Specifications 4. Menu selection 5. Software switching 6. Calendar switching
Address 01 09 02 0A 03 0B 04 0C 05 0D 07 0F
Data 00 FF 01 FE 04 FB 00 FF 00 FF 00 FF
When replacing the IC7702 (FLASH MEMORY), first make the following settings and then start the adjustments.
<E2PROM DATA>
(1) Electromagnetic conversion
Address 27 28 2B *105 25 26
Data 40 90 90 80 40 90
* The address uses only when replacing the IC302.
• Adjustment with automatic machine
Mode VCR ADJ mode
Procedure 1) Using the 12 command, set the VCR adjustment mode.
2) Using the 20 command, give the E
3) Set the system code with the 22 command for each type.
4) Using the command, set write inhibition.
5) Using the command, cancel the adjustment mode.
Examples • During FLASH MEMORY (IC7702) replacement.
code code code code code
(2) LCD Circuit
Address 8B B6 B7 B8 B9
Data 64 7B 7B 10 10
2
PROM Write permission.
VL-FD1U
• Manual adjustment
Mode VCR ADJ mode
Procedure 1) Set the CAM/OFF/VCR selection switch to VCR.
2) Press “CONTINUE” → ”VCR adjustment” on the remote controller to set the VCR adjustment mode.
(At this time an indication “VCR ADJ” appears at the left upper side.)
Enter a setting corresponding to the address.
<Setting method>
3) Adjust the address by moving up and down the blinking numeral with the FF and REW key, and fix the address
by pressing the PB key.
4) Adjust to the setting by moving up and down the blinking numeral with the FF or REW key, and set data by
pressing the PB key.
5) Press the STOP key to set the address set state.
6) Repeat the operations 3), 4) and 5) as much as input addresses. After completion of input of all items hold
down the “CONTINUE” key to cancel the VCR adjustment mode.
7) Set the CAM/OFF/VCR selection switch to OFF.
Examples • During FLASH MEMORY (IC7702) replacement.
2. HSWP adjustment
Mode VCR ADJ mode
Procedure 1) Play back the alignment tape in the video mode.
2) Press the "CONTINUE" and "HSWP ADJ" keys on the adjustment remote control in this order.
→ This executes the HSWP adjustment.
When the adjustment is successful, the blue LCD lights up and the cassette is automatically ejected. If not
properly adjusted, the red LCD lights up.
Examples • During mechanism replacement.
• During E
2
PROM replacement (IC302 inside the head amplifier circuit board).
29
VL-FD1U
1.0±0.05
L
R
R
C
TL3366
L
C
D701
R714
R755R752
ADJUSTING THE ELECTROMAGNETIC CONVERSION CIRCUIT SYSTEM
1. PLL VCO adjustment
Mode VCR ADJ mode
Procedure 1) Playback the alignment tape (or a self-recorded tape).
2) Call the adjustment mode (V-ADJ).
3) Set the address "2A" and call the data.
4) Set the called data with the FF/REW key to the point where the playback screen appears.
(At this time, the screen full of block noise is OK.)
Examples • During E
2. Phase and equalizer adjustment → (Performed in the VCR mode)
Mode VCR ADJ mode
Procedure 1) Load a self-recorded tape into the deck.
2) After playback for 3 minutes, select the test mode 0F using the remote control for adjustment to start the
automatic adjustment. (The following sequence is automatically performed.)
2
PROM replacement. • During circuit board (Main) replacement.
VL-SD20U
The built-in VI/O
colour bar is recorded.
VS REW
PB
Phase and
equalizer are
adjusted
automatically.
OK:
Blue LCD comes on.
Judgment
NG:
Tape is EJECT.
Red LCD comes on.
3) Error rate check
Select and fix the TEST MODE 0B on the adjustment remote control.
4) Manual adjustment method (video adjustment mode)
* Perform this adjustment with the self-recording/playback in the LP mode.
For phase, vary the data for the address 26 and 2B, and for equalizer, vary the data for the address 25 and 27,
to set the error rate is made as small as possible.
Error rate
Synchronization error 20 or less
Error rate 200 or less (SP Mode)
330 or less (LP Mode)
Phase Equalizer
H ch side 2B 27
L ch side 26 25
Synchronization error
H
L
Examples • During mechanism replacement. • During circuit board (Main) replacement. • During E2PROM replacement.
ADJUSTING THE VIDEO I/O CIRCUIT SYSTEM
(Wiring board diagram: Main Side B)
TL715
IC7
R705
C708
R710
R715
TL3348
R713
R703
C712
C756R754
C760C764
C759C710
TL716
R711 C704
R702
R704
C705
R750 R753
R756
IC703
R7472
C7713
C755
C753
IC7402
C752
R7441
IC7401
C7714 C7716 C7715C7407R7406
C7701
R7714
R7713
C7718
C7719
R761
6702
6704
6706
6708
FB702
6715
L6713
L6711
TL6709
TL6707
TL6705
6701
TL6703
C7427
C7421
L7701
R7422
R7425
C7403
FB7402
C7419
R760
X7401
R762
TL753
C768
R765
R764
Q750
R763
FB701
TL752
TL751
TL750
C1732
R709
Q701
L1701
C762
C761
R743
C702 R712
R717
C1702CC1703
R1740
R701
IC705
C1707
C1708
R7442
R7443
C1709
R7444
R7447
R7446
C7405
R7445
R7448
C1711
C1713
C1717
C1715
C1718
TL1705
R1710
C1721
TL1703
TL1704
C1723
C1724
R7418 C7416
R7419
R7420
C1730
R7417
D7402
C7417
R7421
R7424
C7426
C7425
TL6717
D7401
R7434
R7433
R7431
R7436
TL7404
R7450R7427C7424
TL7405TL7403
TL7402
R7402
TL7401
R7423
R7426
C7423
1. PCO D/A-Y adjustment
Test point TL2409 (connected to oscilloscope) Mode EE mode
Procedure 1) Connect the AVS cable and then connect it to the monitor (TO).
2) Call the adjustment mode (V-ADJ).
3) Set the address to "22", and call the date.
(100% white signal is output.)
4) Vary the date with the FF and REW keys to set the signal appearing at TL2409 to 1.0Vp-p ± 0.05.
Examples • During E
2
PROM replacement. • During IC4401 replacement. • During IC1401 replacement.
L1702
R1716
R1704
IC1702
C1725
C1727
C7414
C1729
R7413
R7416
R7415
Q7401
30
R1721
Q1701
C1704
R1715
R1703
R1713
R1714
R1712
C1728
R7401
C7413
Q7402
R7403
Q7403
C7402
FB7401
R2407
FB2406
FB2408
TL6731
FB2410
R2409
TL2407
PCO D/A-C
C3401
R3404
C3403
C3402
TL3344
R1720
TL3321
R3401
R1722
TL3346
TL3360
TL3358
TL3356
TL3357
C1706
R1706R1702
R1707R1705
C1710
TL1701
C1712
C1714
R1708
R1709
C1716
C1719
C1720
C1722
TL3337
TL1702
TL3336
TL3335
R1701
R1711
C1726
TL3334
TL3411
TL2407
TL6730
TL6729
TL2405
TL2408
TL2410
FB2405
TL3343TL3310TL3345
SC2401
TL2404
TL2409
TL3320
TL3323
TL3367
R3498
TL3315
C3440
R3459R3464
SC3301
R3496
TL3309
TL3308
R3460
TL3307
TL3303
TL3324
R3495R3466R3467
TL3314
Z1
TL6733
TL6732
TL2402
TL6728
TL2401
TL2406
TL2409
PCO D/A-Y
Q3401
R3458
R3465
R3497
Q3407
C3441
C3442
R3489
Q3406
Q3405
R3494
IC3405
R3475
C3462 C3443
R3474
R2402
C2401
R2404
R2405
TL2403
R2401
L2401
FB2401
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