Sharp ViewCam VL-WD255U User manual

VL-WD255U
1
In the interests of user-safety (Required by safety regula-
tions in some countries) the set should be restored to its
originalconditionandonlypartsidenticaltothosespecified
be used.
S41R8VL-WD255
LIQUID CRYSTAL DIGITAL CAMCORDER NTSC
SERVICE MANUAL
Page
2. SPECIFICATIONS.............................................................................................................................. 2
3. PART NAMES .................................................................................................................................... 3
10.ADJUSTING THE ELECTRICAL CIRCUITS...................................................................................... 3
14.SCHEMATIC DIAGRAMS .................................................................................................................. 4
15.SEMICONDUCTOR LEAD IDENTIFICATION ................................................................................. 18
16.PRINTED WIRING BOARD ASSEMBLIES...................................................................................... 19
17.REPLACEMENT PARTS LIST ......................................................................................................... 21
18.PACKING OF THE SET ................................................................................................................... 26
CONTENTS
MODEL
This document has been published to be used for
after sales service only.
Thecontentsaresubjecttochangewithout notice.
SHARP CORPORATION
VL-WD255U
In this Service Manual, only the differences from VL-WD250U/WD450U
(SY0N4VL-WD250) are described.
Therefore, for the parts which are not described in this Service Manual, refer
to the Service Manual for VL-WD250U/WD450U (SY0N4VL-WD250).
SERVICE MANUAL LIQUID CRYSTAL DIGITAL CAMCORDER NTSC MODEL VL-WD255U

2
VL-WD255U
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" (6.4 mm, effective size: 4.5 mm) CCD image sensor
(with approx. 460,000 pixels including optical black)
Lens: 26 ×optical/780 ×digital power zoom lens (F1.6, f=3.5-91.0 mm), full-range auto
focus
Lens Filter Diameter: 37 mm
Viewfinder: Electronic LCD color viewfinder
Monitor: 2.5" (6.3 cm) full-color LCD screen (TFT active matrix)
Microphone: Electret stereo microphone
Color Temperature Compensation: Auto white balance with white balance lock
Minimum Illumination: 1 lux (9 lux measured by EIA standard)(with gain-up, F1.6)
Still Image Compression
System/Recording Format: JPEG base line conformance/JPEG (Exif2.1)
Still Image Recording Medium: 3.3V type SmartMediaTM card (SSFDC)
Power Requirement: DC 7.4 V
Power Consumption: 4.0W(duringcamerarecordingusingtheviewfinderinFullAutomodewithzoom
motor off)
4.8 W (during camera recording using the LCD monitor in Full Auto mode with
zoom motor off and backlight in normal mode)
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.): 3 11/16" (W) ×4 21/32" (H) ×7 11/32" (D)
[93.7 mm (W) ×118 mm (H) ×186.5 mm (D)]
Weight (approx.): 1.58 lbs (715 g)
(without battery pack, lithium battery, video cassette and lens cap)
2. SPECIFICATIONS
SERVICE INFORMATION (For the U.S.)
ForthelocationofthenearestSharpAuthorizedService,ortoobtainproductliterature,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)
Specifications are subject to change without notice.
AC Adapter/Battery Charger
(UADP-0321TAZZ)
Power Requirement: AC 110-240 V, 50/60 Hz
DC Output: 7.3 V
Power Consumption: 23 W
Dimensions (approx.): 2 23/32" (W) ×1 11/16" (H) ×4 7/16" (D)
[69 mm (W) ×43 mm (H) ×113 mm (D)]
Weight (approx.): 0.35 lbs (160 g)
SmartMediaTM Card (Commercially Available)
Memory Capacity: 8 MB
Memory Type: NAND flash EEP-ROM
Power Requirement: 3.3 V
Operating Temperature: 32°F to 104°F (0°C to +40°C)
Storage Temperature: –4°F to 149°F (–20°C to +60°C)

VL-WD255U
3
3. PART NAMES
For details on the use of each control.
10. ADJUSTINGTHE ELECTRICAL CIRCUITS
[Making adjustments]
Adjusting the servo system controller and related parts
1. Setting the system codes
Replacement of IC703 E2PROM 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 code 3. Specification code 4. Menu selection code 5. Software switching code 6. Calender switching
Address 01 09 02 0A 03 0B 04 0C 05 0D 07 0F
Data 04 FB 01 FE 14 EB 00 FF 00 FF 01 FE
Media Selection switch (TAPE/CARD
selection switch)
Left view
W/B (White Balance) button
CAT'S EYE switch
Lens hood
Zoom lens
Remote sensor
Stereo microphone
GAMMA/BRIGHTER button
AUTO ON/OFF button
Operation button
MENU/DISPLAY button
Bottom view
Card slot cover Tripod socket
Right view
S-VIDEO socket
VIDEO jack
AUDIO L jack
AUDIO R jack
STILL button
Power Zoom Wide angle/
Telephoto control/
VOLume control
Jack cover RECord START/STOP button
Power switch (CAMERA/VCR
select switch)
Cassette compartment door
Cassette compartment door release
PC connection
jack
DV terminal
EarPHONES
jack
Jack cover
Speaker
Hand strap
Power source
mounting surface
Left view
Zoom microphone
mounting hole
LCD monitor
LCD monitor
OPEN release
button
Lithium battery
compartment door
Viewfinder
Diopter adjustment
Power source
PUSH release
button

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A
B
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D
E
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VL-WD255U
4–5
14. SCHEMATIC DIAGRAMS 14-1. OVERALL SCHEMATIC DIAGRAM

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VL-WD255U
6~7
14-2. MEC/SYS_MICON SCHEMATIC DIAGRAM

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VL-WD255U
8~9
14-3. POWER1 SCHEMATIC DIAGRAM

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VL-WD255U
10~11
14-4. CAM/CARD MICON SCHEMATIC DIAGRAM

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VL-WD255U
12~13
14-5. MIC AMP SCHEMATIC DIAGRAM

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VL-WD255U
14-6. POWER SCHEMATIC DIAGRAM åAND SHADED COMPONENTS=SAFETY RELATED PARTS
14~15

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VL-WD255U
16~17
14-7. JOINT SCHEMATIC DIAGRAM