Jvc AX 1100 BK Owners Manual

Page 1

Contents

Safety Precautlons,

Instruction Book. .r
Description of Technology
Remova Procedures.. , ,,
Adjustment Procedures V ., . .V .,.1-14

Page

Schematrc Dragrams....r.,., ,,.Insertion
\nternal Block Diagrams of IC ..Insertion
Connection Diagram ,. .. Insertion
Paris List. .. ,. , . Sepalate Volme Insertion
Block Dragrmm ... ..r W- 1 5
N02994-

Jun1987

Page 2

AX-i 100BK

Safety Precautions

1. The design of this product contains special hardward 5. Leakage current check

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 circuitst Service should be
performed by qualified personnel only,

. Alterations of the design or circuitry of the product
should not be made. Any design alterations or addi-
tions will void the manufacturer's warranty and will
further relieve the manufacturer of responsibility for
personal injury or property damage resulting thereforrn.

. Many electrical and mechanical parts in the product
have special safety-related characteristics. These char-
acteristics 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 indentified
in the Parts List of Service Manual. Electrical compon-
ents having such features are identified by shading on
the schematics and by (A) on the Parts List in the Ser-
vice Manual. The use of a substitute replacement
which does not have the same safety characteristics as
the recommended replacement part shown in the Parts
List of Service Manual may create shock, fire, or other
hazards.

. The leads in the products are routed and dressed with

ties, clamps, tubings, barriers and the like to be separat-
ed from live parts, high temperature parts, moving parts
and/or sharp edges or 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.

(Electrical shock hazard testing)

After re-assembling the product, always perform an iso»

lation check on the exposed metal pars of the product

(antenna terminals, knobs, metal cabinet, screw heads,

headphone jack, control shafts, etc.) to be sure the pro-

duct is safe to operate without danger of electrical
shock,

Do not use a line isolation transformer during this

check.

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

0 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. Use an AC line
cord directly into the AC outlet. Connect a 1.500 52
10 W resistor paralleld by a 0.15 pF AC-type capaci»
tor between an exposed metal part and a known
good earth ground.

Measure the AC voltage across the resistor with the
AC voltmeter.

Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a re-
turn path to the chassis, and measure the AC voltage
across the resistor. Now, reverse the plug in the AC
outlet and repeat each measurement. Any voltage
measured must not exceed 0.75 V AC (r.m.s.). This
corresponds to 0.5 mA AC (r.m.s.}.

E AC VOLTMETER
(HAVING iOOOQ/V.
OR MORE SENSITIVITY)

0.15M AC-TYFE
I i 7 .
I PLACE THIS PROBE
ON EACH EXPOSED
METAL PART

150052 1 OW

GOODEARTH GROUND

CHECK THE VOLTAGE SELECTOR'S SETTING

(Except for U.S.A.. Canada, Australia, U.K. and Continental Europe.)

Before inserting the power plug, please check that the voltage selector's setting corresponds with the line voltage in
your area. If it doesn't, be sure to reset the voltage selector before this equipment.

The voltage selector may be located on the rear or bottom of the unit, or underneath the platter.

fl

CAUTION: Before setting the voltage selector to the proper voltage. disconnect the power plug. J

1-2 (No.2994)

Page 7

AX 1100BK

GD MONO/STEREO
MONO i - 1: Set to this position to have
both speakers produce me sound of
both the lefi- and rigmmhannei
signals mixed.
STEREO ( 1 ): Normaiiv 53'! :0 this posi-
tion.
0 Aux
Convenient for conneczing an extrai Audit:
equipment.

® 50 SUESONIC
SUESONIC I.-. ): Press in if uitra-iow
noise is nmiceabie.
OFF (1): Nermaily set to this position,
Note:
nThis human oparaas only when tho
SOURCE SELECTOR is m it PHONO.
When a sound source other than PHONO is
seq, characteristics will not change on Iurn-
ing this button ON and OFF.

® MC/MM switch
MCI .- ): Press in when using an MC car-
1ridge having an output of less than
0.5 mV.
MM( 1): Press again when using an MM
or MC cartridge having an output of
more than 0.5 mV.

(No.2394) 1-7