DOWNLOAD Sharp VC-S2000 (serv.man2) Service Manual ↓ Size: 1.2 MB | Pages: 52 in PDF or view online for FREE

Model
VC-S2000 (serv.man2)
Pages
52
Size
1.2 MB
Type
PDF
Document
Service Manual
Brand
Device
VCR / Service manual page 01 to 52
File
vc-s2000-sm2.pdf
Date

Sharp VC-S2000 (serv.man2) Service Manual ▷ View online

25
VC-S2000HM
Figure 4-43.
INSTALLING THE SHIFTER
Figure 4-42.
1. Make sure that the loading gear is at the PHASE-
MATCHING point 
1
 as shown below.
2. Install, paying attention to insert point 
5
 and release
point 
3
.
3. For the phase matching at the insert point  
1
, see the
PHASE-MATCHING point 
2
 as shown below.
4. Finally fix the inserts 
1
 and 
4
.
Capstan
D.D. motor
Drum
Reel pulley
(Bottom side of mechanism chassis)
Sifter
Phase-Matching
point 
2
Insert
point 
1
Half round notch
Shaft 
1
Round mark
Loading gear (T)
Insert
point 
3
Insert
point 
4
Insert
point 
5
Release
point 
3
Phase-matching
point 
1
Shaft 
1
Shaft 
1
Shaft 
2
Insert
point 
2
Rotation
point 
2
26
VC-S2000HM
INSTALLING THE MASTER CAM (AT REAR
SIDE OF MECHANISM CHASSIS)
1. Make sure beforehand that the shifter is at the point as
shown below.
2. Place the master cam in the position as shown below.
Note:
See the figure below for the phase matching between the
master cam and the casecon drive gear.
3. Finally fix with the E ring.
REPLACEMENT OF LOADING MOTOR
Removal
Replacement
Remove the loading motor, and install the replacement
loading motor as shown below.
Figure 4-46.
Figure 4-44-2.
When installing the master cam,
align the casecon drive gear
round mark with the half-round
notch of master cam.
The loading motor pressing-in must be less than 147 N (15
kgf).
Adjust the distance between motor and pulley to 10.2
     mm).
E ring
(XRESJ30-06000)
Master cam
Fully turn
clockwise
Fully turn counterclockwise
Figure 4-44-1.
Face the wide tooth side ward
Master cam
Casecon drive gear
10.2      mm
Round mark
Half-round notch
+0
.2
–0.2
Apply grease
Apply grease
No grease
Figure 4-45.
+0
.2
–0.2
27
VC-S2000HM
2. Synchro Gear, Drive Gear L and Drive Gear R
ASSEMBLY OF CASSETTE HOUSING
1. Drive Gear and R Drive angle ass’y
Figure 4-47.
MSPRT0381GEFJ
Apply grease
Apply grease
Apply grease
LANGF9592GEFW
Top surface should be free from scratches or soil.
Drive angle
Drive gear R
Frame
Figure 4-48.
28
VC-S2000HM
MODEL
INITIAL CHANNEL
SKIP
COLOUR SECAM
BLUE BACK
NICAM POWER
OUTPUT
POSITION
CHANNEL
SAVE
CHANNEL
VC-S2000HM
SHARP
AUTO
AUTO
AUTO
E36
5. ELECTRICAL ADJUSTMENT
Notes:
• Before the adjustment:
Electrical adjustments discussed here are often required after replacement of electronic components and mechani-
cal parts such as video heads.
Check that the mechanism and all electric components are in good working condition prior to the adjustments,
otherwise adjustments can not be completed.
• Instruments required:
Blank video cassette tape
DC voltmeter
Screwdriver for adjustment
Colour TV monitor
Dual-trace oscilloscope
         Alignment tape (VROCPSV)
Servicing precations
When the IC705 (E
2
PROM) has been replaced, make the following reprogramming. Depending on models, the IC705
(E
2
PROM) has been factry-adjusted for it’s memory function.
It’s therefore necessary to reprogram the memory function for the model in question.
Note that the servo circuit requires readjustments for the head switching point, slow and still modes.
• Location of controls and test points
• Establishment in shipping
Figure 5-1.
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