Sharp DV-760H (serv.man3) Service Manual ▷ View online
DV-700S
DV-760S/H
DV-760S/H
For details on the use of each control.
4. PART NAMES
4-1
(DV-700S)
DV-700S
DV-760S/H
DV-760S/H
4-2
(DV-760S/H)
DV-700S
DV-760S/H
DV-760S/H
5. MAINTENANCE CHECK ITEMS AND EXECUTION TIME
Parts
Maintained
1,000 hrs.
2,000 hrs.
Pickup
Spindle Unit
Sled Motor
Loading Motor
Belt
Note
: Part Replacement
: Cleaning
(For cleaning, use a lint-free cloth danpened with pure isopropyl alcohol.)
Use the following table as a guide to maintain the mechanical parts in good operating condition.
CARES WHEN USING THE PICKUP
1. The laser light having wavelength 650 nm is emitted from the objective lens. BE CAREFUL SO THAT THE LASER
LIGHT DOES NOT ENTER DIRECTLY INTO YOUR EYE.
2. The semiconductor laser may be easily damaged by electrostatic charges. When handling the pickup, take care so that
the electrostatic charge is not generated.
3. The semiconductor laser may be easily damaged by overcurrent. Use the power supply unit which does not give any
spike current when the power is turned on and off.
4. Carefully remove the dust and dirt from the objective lens with the lens blower.
When handling the objective lens, take due care so that it is not contaminated with fingerprint, etc. If the objective lens
is contaminated, impregnate the cleaning paper with a small quantity of solvent (isopropyl alcohol), and gently wipe to
clean.
5. The ozone layer depleting components (ODC) are not used in the production process for the product.
MECHANICAL PARTS REGUIRING PERIODICAL INSPECTION
5-1
DV-700S
DV-760S/H
DV-760S/H
6. DISASSEMBLY AND REPLACEMENT OF MAIN PARTS
6-1. DISASSEMBLY
1. Remove five screws (A), and remove the cabinet.
Note: When assembling it, tighten the screws in
order of 1 - 2 .
(Because the set may rise a little by tightening
the screws.)
6-1
17. Remove five screws (T) which install the volume
PWB of the front panel.
18. Remove six screws (U) which install the display
PWB.
19. Remove six screws (V) which install the operate
PWB.
* The spacer and insulation seat under the indication
tube of (W) are bonded with both-side sticking tape.
7. Disconnect the lead lines (F) and (G) and (H) from
the main PWB under the mechanism.
8. Remove three screws (J) on both sides of the termi-
nal angle frame.
9. Remove three screws (K) which install the terminal/
power PWB.
10. Remove three screws (L) which install the terminal
block.
11. Remove three screws (M) of the display PWB.
12. Remove four screws (N) of the mecha angle.
13. Remove one screw (P) of the mecha angle.
14. Remove two screws (Q) of the decorative leg.
15. Push out the middle pin (R) of the setting leg in the
direction opposite to insertion. (Two places)
16. Remove two screws (S) which install the main
PWB under the mechanical unit.
2. Remove two screws (B).
3. Remove three screw (C).
4. Release the hooks of the front panel at two places on
both sides and at three places on the bottom, and
slide the front panel toward you.
5. Disconnect the connector (D).
6. Remove four screws (E) which installs the mechani-
cal unit.
Top Cabinet
(A) x2
1
(A)
2
(A) x2
1
(D)
(E) x4
(B) x2
(C) x1
Front Panel
(C) x1
(C) x1
Remove it when you remove
a front panel because screw
catch is done with terminal
in the substrate (headphone)
and the angle from the panel.
a front panel because screw
catch is done with terminal
in the substrate (headphone)
and the angle from the panel.
(L) x3
(K)
(J) x3
(N) x4
(P)
(R) x2
(K)
Terminal PWB
(Q) x2
(M) x3
(S)
(S)
(F)
(G)
(H)
Mechanism
Main PWB
Volume PWB
(W)
Operate PWB
Display PWB
(V) x6
(T) x5
(U) x6
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