Jvc FS 5000 Service Manual

Page 1

FS-5000/FS-6000

Area Suffix

J .......... The U.S.A
& Canada

Contents

Safety Precautions .............................................. 1-2
importance Admistering point on the safety
Important for Laser Products
Instructions (For FS-SOOO) .......
Description of Major |Cs ................
Internal connections of FL Display .
Removal of Main parts ......................
Main Adjustment ................................................. 2-18
Flow of Functional Operation

Until TOC read ................. 2-22

[filfigé

DIGITAL AUDIO

Maintenance of Laser Pickup ......
Replacement of Laser Pickup ..
Self diagnosis Function of CD .
Block Diagrams ...........
Schematic Diagrams ..
Printed Circuit Boards .
Parts List ........................

COPYRIGHT © 1998 VICTOR COMPANY OF JAPAN, LTD

No.20713
Jul. 1998

Page 2

FS-5000lFS-6000
--Safety Precautions

1.This design of this product contains special hardware and many circuits and components specially
for safety purposes. For continued protection, no changes should be made to the original design
unless authorized in writing by the manufacturer. Replacement parts must be identical to those
used in the original circuits. Services should be performed by qualified personnel only.

2.Alterations of the design or circuitry of the product should not be made. Any design alterations of
the product should not be made. Any design alterations or additions will void the manufacturers ;
warranty and will further relieve the manufacture of responsibility for personal injury or property i
damage resulting therefrom.

3. Many electrical and mechanical parts in the products have special safety-related characteristics.
These characteristics are often not evident from visual inspection nor can the protection afforded
by them necessarily be obtained by using replacement components rated for higher voltage,
wattage, etc. Replacement parts which have these special safety characteristics are identified in
the Parts List of Service Manual. Electrical components having such features are identified by
shading on the schematics and by (A) on the Parts List in the Service Manual. The use of a
substitute replacement which does not have the same safety characteristics as the recommended
replacement parts shown in the Parts List of Service Manual may create shock, fire, or other
hazards.

4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the
like to be separated from live parts, high temperature parts, moving parts and/or sharp edges
for the prevention of electric shock and fire hazard. When service is required, the original lead
routing and dress should be observed, and it should be confirmed that they have been returned
to normal, after re-assembling.

5, Leakage currnet check (Electrical shock hazard testing)
After re-assembling the product, always perform an isolation check on the exposed metal parts
of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control
shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.

Do not use a line isolation transformer during this check.

.Plug the AC line cord directly into the AC outlet. Using a Leakage Current Tester", measure
the leakage current from each exposed metal parts of the cabinet , particularly any exposed
metal part having areturn path to the chassis, to a known good earth ground. Any leakage
current must not exceed 0.5mA AC (r.m.s.)

.Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms
per volt or more sensitivity in the following manner. Connect a 1,5009 10W resistor paralleled by
a0.15;z FAC-type capacitor between an exposed

metal part and a known good earth ground. GringgihgoEol-ER
Measure the AC voltage across the resistor with the 7 ohms/volts,

AC voltmeter. or more sensitivity)
Move the resistor connection to each exposed metal ° °

part, particularly any exposed metal part having a 0.15IJF ACTYPE

return path to the chassis, and measure the AC .
voltage across the resistor. Now reverse the plug in l -_II- :33: as a
the AC outlet and repeat each measurement voltage er ' seam exmsed
measured any must not exceed 0.75 V AC (r.m.s.). 150052 10W metal part.

This corresponds to 0.5 mA AC (r.m.s.).
Good earth ground

|- Warning
1.This equipment has been designed and manufactured to meet international safety standards.

2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

3. Repairs must be made in accordance with the relevant safety standards.

4.lt is essential that safety critical components are replaced by approved parts. 5

5. If mains voltage selector is provided, check setting for local voltage.

ACAUTION Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such bun's in the case of preforming repair of this system.

1-2

Page 30

FS-5000/FS-6000

lRemoving the CD door assembly
(See Fig 11.12)

CD Door

Disengage the two engagement section on both _ . - . I. 1' 1%???
the right and left sides of the CD door while '
expanding the sections outward.

CD Door

Fig. 12

I Removing the operation switch P.C.Board
(See Fig 13.14)

1.Ftemove the top panel while expanding the right and
left side hooks outward.
2.Flemove the operation switch P.C.Board upward.

Operation SW
RC. Board

w

Fig. 14

2-16

Page 35

FS-5000/FS-6000

ICD Section
items Conditions Adjustment and Confirmation Procedure Standard Value
1.Jitter Measuring Connect the jitter meter between zen-sec or
check instrument TP601(GND) and TP602(ARF) and less
:jitter meter when test disc (track 1) is played, confirm
Test point that the meter reading is 26n-sec or less.
:TP601(GND side)
:TP602(ARF side)
*Test disc
:CTS-1000
Z-RF level 'Measuring Connect the oscilloscope between within 1.1Vt
(eye pattern) instrument TP601(GND) and TP602(ARF) and when 0.2V
:Oscilloscope test disc (track 1) is played,confirm that
*Test point peak-to-peak value of oscilloscope waveform
:TP601(GND side) is within 1.1V:0.2V.
:TP602(ARF side)
*Test disc
:CTS-1 000 Eye pattern waveform
y'tlvv'v
V v3 The maximum value of this
.0. waveform should be in the range
A \ of specifications and the
l waveform should be clear
1. AIM. ..
3.0uter most *Test disc Select "Track 26" on the outer area of test
area check :CTS-1000 disc directly and check that it begins playback
smoothly and that there are no abnormal
conditions such as a tracking error.
4.Pickup unit *Test disc Allow the pickup to skip over from the disc's within 10
movement :CTS-1000 outer most area to "Track 1" and check that it seconds
check(From tales within 10 seconds for the player to enter
the outer play mode.
area to the
inner area)

2-21