DOWNLOAD Sharp DV-RW250H (serv.man5) Service Manual ↓ Size: 4.36 MB | Pages: 117 in PDF or view online for FREE

Model
DV-RW250H (serv.man5)
Pages
117
Size
4.36 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / Complete
File
dv-rw250h-sm5.pdf
Date

Sharp DV-RW250H (serv.man5) Service Manual ▷ View online

DISASSEMBLY INSTRUCTIONS
B2-2
2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)
Remove the screw 
1
.
Remove the Loading Motor.
Remove the Worm.
1.
2.
3.
Fig. 2-6-A
• Screw Torque: 3 
±
 0.5kgf•cm
Loading Motor
1
Main Chassis
Worm
2-7: TENSION ASS'Y (Refer to Fig. 2-7-B)
Turn the Pinch Roller Cam clockwise so that the
Tension Holder hook is set to the position of Fig. 2-7-A
to move the Tension Arm Ass'y.
Remove the Tension Spring.
Unlock the 2 supports 
1
 and remove the Tension
Band.
Unlock the support 
2
 and remove the Tension Arm
Ass'y.
Unlock the support 
3
 and remove the Tension
Connect.
Float the hook 
4
 and turn it clockwise then remove the
Tension Holder.
1.
2.
3.
4.
5.
6.
Fig. 2-7-A
Tension Arm Ass'y
Fig. 2-7-B
Fig. 2-7-D
Tension Band
Tension Spring
1
2
4
Tension Band
Tension Arm Ass'y
3
1
Tension Holder
Tension Connect
NOTE
1.
2.
3.
In case of the Tension Band installation, note the
direction of the installation. (Refer to Fig. 2-7-C)
In case of the Tension Band installation, install correctly
as Fig. 2-7-D.
In case of the Tension Connect installation, install as
the circled section of Fig. 2-7-E.
Tension Band
Tension Connect
Tension Connect
[OK]
[NG]
Fig. 2-7-E
Tension Connect
Main Chassis
Fig. 2-7-C
Tension Band
Tension Connect
NOTE
1.
2.
3.
In case of the Worm installation, check if the value of
the Fig. 2-6-B is correct.
In case of the Loading Motor installation, hook the wire
on the Cassette Opener as shown Fig. 2-6-C.
When installing the wires between Capstan DD Unit
and Loading Motor, connect them correctly as shown
Fig. 2-6-D.
Loading Motor
Capstan DD Unit
-
+
L2
L1
Pink
Fig. 2-6-D
White
Fig. 2-6-B
19.2 
±
 0.1mm
Safety surface for pressing
of the insert.
Fig. 2-6-C
Loading Motor
Cassette Opener
DISASSEMBLY INSTRUCTIONS
B2-3
Fig. 2-9-B
Big Hole
(S Reel)
Small Hole
(T Reel)
Fig. 2-9-C
Idler Arm Ass'y
[OK]
[NG]
Clutch Gear
Idler Arm Ass'y
Clutch Gear
Fig. 2-8-B
T Brake Band
NOTE
1. In case of the T Brake Band installation, install correctly
as Fig. 2-8-B.
T Brake Arm
[OK]
[NG]
T Brake Band
T Brake Arm
2-9: S REEL/T REEL/IDLER ARM ASS'Y/IDLER GEAR
(Refer to Fig. 2-9-A)
Remove the S Reel and T Reel.
Remove the 2 Polyslider Washers 
1
.
Remove the Idler Arm Ass'y and Idler Gear.
1.
2.
3.
NOTE
Take care not to damage the gears of the S Reel and T
Reel.
The Polyslider Washer may be remained on the back of
the reel.
Take care not to damage the shaft.
Do not touch the section "A" of S Reel and T Reel. (Use
gloves.) (Refer to Fig. 2-9-A) Do not adhere the stains
on it.
When you install the reel, clean the shaft and grease it
(FG-84M). (If you do not grease, noise may be heard in
FF/REW mode.)
After installing the reel, adjust the height of the reel.
(Refer to MECHANICAL ADJUSTMENT)
1.
2.
3.
4.
5.
6.
Fig. 2-9-A
S Reel
1
(A)
T Reel
(A)
1
Idler Arm Ass'y
Idler Gear
NOTE
1.
2.
In case of the S Reel and T Reel installation, check if the
correct parts are installed. (Refer to Fig. 2-9-B)
In case of the Idler Arm Ass'y installation, install correctly
as Fig. 2-9-C.  And also set it so that the section "B" of
Fig. 2-9-A is placed under the Main Chassis tab.
2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)
Remove the T Brake Spring.
Turn the T Brake Arm clockwise and bend the hook
section to remove it.
Unlock the 2 supports 
1
 and remove the T Brake
Band.
1.
2.
3.
T Brake Band
Hook section
T Brake Spring
T Brake Arm
1
1
Fig. 2-8-A
(B)
DISASSEMBLY INSTRUCTIONS
B2-4
A/C Head
2
2
A/C Head Spring
1
(3)
(1)
2
(2)
A/C Head Base
Spring Position
Fig. 2-11-B
2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)
Remove the screw 
1
.
Remove the FE Head.
1.
2.
FE Head
• Screw Torque: 5 
±
 0.5kgf•cm
• The FE Head is not installed on the Video Cassette Player.
Fig. 2-11-A
• Screw Torque: 5 
±
 0.5kgf•cm (Screw 
1
)
Fig. 2-12
1
2-11: A/C HEAD (Refer to Fig. 2-11-A)
Remove the screw 
1
.
Remove the A/C Head Base.
Remove the 3 screws 
2
.
Remove the A/C Head and A/C Head Spring.
1.
2.
3.
4.
NOTE
Do not touch the A/C Head. (Use gloves.)
When you install the A/C Head Spring, install as shown in
Fig. 2-11-B.
When you install the A/C Head, tighten the screw (1) first,
then tighten the screw (2), finally tighten the screw (3).
1.
2.
3.
2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/
P5 ARM ASS'Y (Refer to Fig. 2-10-A)
Unlock the support 
1
 and remove the Cassette
Opener.
Remove the Pinch Roller Block and P5 Arm Ass'y.
1.
2.
Fig. 2-10-A
1
Cassette Opener
P5 Arm Ass'y
Pinch Roller Block
Main Chassis
NOTE
Do not touch the Pinch Roller. (Use gloves.)
In case of the Pinch Roller Block and the Pinch Roller
Cam installation, install correctly as Fig. 2-10-B.
1.
2.
Fig. 2-10-B
Can be seen the hole of the
Main Cam.
Can be seen the hole of
the Pinch Roller Cam.
P5 Arm Ass'y
Pinch Roller Block
2-13: CYLINDER UNIT ASS'Y (Refer to Fig. 2-13)
Disconnect the following connector:
(CD2001)
Remove the 3 screws 
1
.
Remove the Cylinder Unit Ass'y.
1.
2.
3.
When you install the Cylinder Unit Ass'y, tighten the
screws from (1) to (3) in order while pulling the Ass'y
toward the left front direction.
NOTE
Fig. 2-13
1.
• Screw Torque: 3 
±
 0.5kgf•cm
Cylinder Unit Ass'y
1
1
1
(1)
(3)
(2)
DISASSEMBLY INSTRUCTIONS
B2-5
2-16: LOADING GEAR S/T UNIT (Refer to Fig. 2-16-A)
1.
2.
Remove the E-Ring 
1
 and remove the Main Loading
Gear.
Remove the Main Rod, Tension Lever, Loading Arm S
Unit and Loading Arm T Unit.
1
Main Rod
Main Loading Gear
Tension Lever
Loading Arm T Unit
Loading Arm S Unit
Fig. 2-16-A
2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14)
Remove the Capstan Belt.
Remove the screw 
1
.
Remove the Capstan Holder.
Remove the 3 screws 
2
.
Remove the Capstan DD Unit.
1.
2.
3.
4.
5.
• Screw Torque: 4 
±
 0.5kgf•cm
Capstan DD Unit
Capstan Belt
Fig. 2-14
1
2
Capstan Holder
2
2
Fig. 2-15-A
NOTE
In case of the Pinch Roller Cam and Main Cam
installation, install them as the circled section of Fig. 2-
15-B so that the each markers are met. (Refer to Fig.
2-15-B)
Fig. 2-15-B
2-15:
Remove the E-Ring 
1
, then remove the Main Cam.
Remove the E-Ring 
2
, then remove the Pinch Roller
Cam and Joint Gear.
1.
2.
MAIN CAM/PINCH ROLLER CAM/JOINT GEAR
(Refer to Fig. 2-15-A)
1
Main Cam
Pinch Roller Cam
Joint Gear
2
1.
Pinch Roller Cam
Main Cam
Marker
NOTE
1. When you install the Loading Arm S Unit, Loading Arm
T Unit and Main Loading Gear, align each marker.
(Refer to Fig. 2-16-B)
Fig. 2-16-B
Loading Arm T Unit
Main Loading Gear
Marker
Marker
Loading Arm S Unit
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