DOWNLOAD Sharp DV-NC100H (serv.man6) Service Manual ↓ Size: 1.4 MB | Pages: 25 in PDF or view online for FREE

Model
DV-NC100H (serv.man6)
Pages
25
Size
1.4 MB
Type
PDF
Document
Service Manual
Brand
Device
DVD / Deck mechanism section
File
dv-nc100h-sm6.pdf
Date

Sharp DV-NC100H (serv.man6) Service Manual ▷ View online

2-1-2
H9740MEN
Cleaning
Video head cleaning procedure
1. Apply one drop of cleaning liquid to the cleaning
paper with the baby oiler.
2. Gently press the cleaning paper against the video
head to fix your finger, and move the upper drum so
that each head is passed to and for 5 times (do not
move the cleaning paper).
3. Wipe with the dry cleaning paper.
Notes :
• Use the commercially available ethanol of Class 1 as
cleaning liquid.
• Since the video head may be damaged, do not move
up and down the cleaning paper.
• Whenever the video head is cleaned, replace the
cleaning paper.
• Do not apply this procedure for the parts other than the
video head.
Rotate the upper drum
with one hand.
Gently press the cleaning paper to fix 
with your finger, and rotate the upper 
drum to clean.
Move to and for 5 times for each head.
(Do not move the cleaning paper.)
Parts Code
Description
Code
ZPAPRA56-001E
Cleaning Paper
AW
ZOiLR-02-24TE
Babe Oiler (Spoit)
AH
Cleaning of ACE Head
Clean the head with a cotton swab.
Procedure
1. Remove the top cabinet.
2. Dip the cotton swab in 90% isopropyl alcohol and
clean the ACE Head. Be careful not to damage the
upper drum and other tape running parts.
Notes:
1. Avoid cleaning the ACE Head vertically.
2. Wait for the cleaned part to dry thoroughly before
operating the unit or damage may occur.
ACE Head
2-2-1
H9740FIX
SERVICE FIXTURE AND TOOLS
J-1-1, J-1-2, J-1-3, J-1-4, J-1-5
J-2
J-3
J-4
J-5
J-1-1
J-1-2
J-2
9HSFL6A
9HSFL6NS8
---
---
---
---
J-3
J-4
J-5
BX
Head Adjustment of ACE Head
BX
BX
J-1-3
Test Tape
Ref. 
No.
Name
Parts No.
Code
Adjustment
Test Tape
Guide Roller Adj. 
Screwdriver
Mirror
Azimuth Adj. 
Screwdriver +
Flat Screwdriver 
Test Tape
9HSFL6HA
Available Locally
Available Locally
Available Locally
Available Locally
Azimuth and X Value Adjustment of ACE Head /
Adjustment of Envelope Waveform
For Measurement of Hi-Fi Output Level
BX
J-1-4 Test Tape
9HSFL6M
For Measurement of Resolution
BX
J-1-5 Test Tape
9HSFL6K
For Measurement of Audio Frequency Response
Guide Roller
ACE Head Height
Tape Transportation Check
X Value
2-3-1
H9740MA
Explanation of alignment for the tape to correctly run
starts on the next page. Refer to the information below on
this page if a tape gets stuck, for example, in the
mechanism due to some electrical trouble of the unit.
Service Information
A. Method for Manual Tape Loading/Unloading
To load a cassette tape manually:
1. Disconnect the AC plug.
2. Remove the Top Case and Front Assembly.
3. Insert a cassette tape. Though the tape will not be
automatically loaded, make sure that the cassette
tape is all the way in at the inlet of the Cassette Holder.
To confirm this, lightly push the cassette tape further
in and see if the tape comes back out, by a spring
motion, just as much as you have pushed in.
4. Turn the LDG Belt in the appropriate direction shown
in Fig. M1 for a minute or two to complete this task.
To unload a cassette tape manually:
1. Disconnect the AC plug.
2. Remove the Top Case and Front Assembly.
3. Make sure that the Moving guide preparations are in
the Eject Position.
4. Turn the LDG Belt in the appropriate direction shown
in Fig. M1 until the Moving guide preparations come
to the Eject Position. Stop turning when the prepara-
tions begin clicking or can not be moved further.
However, the tape will be left wound around the
cylinder.
5. Turn the LDG Belt in the appropriate direction con-
tinuously, and the cassette tape will be ejected. Allow
a minute or two to complete this task.
MECHANICAL ALIGNMENT PROCEDURES
B. Method to place the Cassette Holder in the tape-
loaded position without a cassette tape
1. Disconnect the AC Plug.
2. Remove the Top Case and Front Assembly.
3. Turn the LDG Belt in the appropriate direction shown
in Fig. M1. Release the locking tabs shown in Fig. M1
and continue turning the LDG Belt until the Cassette
Holder comes to the tape-loaded position. Allow a
minute or two to complete this task.
Moving guide T preparation
(Eject Position)
LDG Belt 
Push the locking tab gently to unlock
when loading without a cassette.
Side View
Moving guide S preparation
(Eject Position)
Push the tape 
to load it.
UNLOAD 
/EJECT
LOAD
Fig. M1
Top View
Fig. M2
Bottom View
Cam Gear
LDG Belt (B)
UNLOAD
/EJECT
2-3-2
H9740MA
1. Tape Interchangeability Alignment
Note:
To do these alignment procedures, make sure that the Tracking Control Circuit is set to the preset position every time
a tape is loaded or unloaded. (Refer to page 2-3-4, procedure 1-C, step 2.)
Equipment required:
Dual Trace Oscilloscope
VHS Test Tape (9HSFL6NS8) (Refer to "SERVICE FIXTURE AND TOOLS" section.)
Guide Roller Adj. Screwdriver
Flat Screwdriver (Purchase Locally)
Note: Before starting this Mechanical Alignment, do all Electrical Adjustment procedures.
Adjust the X Value for maximum envelope.
(Page 2-3-3) (Use Alignment Tape.)
Check to see that the tape is not creasing
and that there is no slack on the supply
and take-up side Guide Rollers.
(Use a blank tape.)
Adjust the height of the Guide Rollers
(Supply side and take-up side).
(Use a blank tape.) (Page 2-3-3)
Loading (Use a blank tape.)
Adjust the envelope. (Page 2-3-4)
Check the envelope.
Adjust the Audio Section.
(Azimuth Alignment) (Page 2-3-4)
Check the audio output.
Check the following:
1. X Value (Page 2-3-3)
2. Envelope (Page 2-3-4)
Adjust the X value and envelope.
No good
Completion
No good
OK
OK
OK
No good
No good
OK
Flowchart of Alignment for tape traveling
1-A
1-A
1-B
1-C
1-C
1-D
1-D
1-B, 1-C
1-B, 1-C
Do the final tape-traveling test to see that 
the tape runs normally in play mode with-
out creasing or slacking.
OK
Check to see that the tape is not creasing
and that there is no slack on the REV Post.
(Use a blank tape.)
1-E
1-A
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Sharp DV-NC100H (serv.man6) Service Manual ▷ Download

  • DOWNLOAD Sharp DV-NC100H (serv.man6) Service Manual ↓ Size: 1.4 MB | Pages: 25 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp DV-NC100H (serv.man6) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp DV-NC100H (serv.man6) DVD. Information contained in Sharp DV-NC100H (serv.man6) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.