Kenwood KR-6030 Service Manual

Bees
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DISASSEMBLY FOR REPAIR
POWER AMP
POWER SUPPLY POWERYTIC CAPACITOR
O.@ Remove the screws.
Power supply PC
. y board ass’y
6) Pull out the PC board mounting plate.
ee @ The powerlytic capacitor can be replaced.
,
@
Pull
out
the
lead
wires
from
e
pro
tection
cover
M3X
10
(Br-Tap)
the
clamper
of
a
protection
cover.
@ Remove the screws.
@ Remove the protection cover.
@ Remove the screws, and the
power amp block can be pulled
out.
M3X8
' (Br-Tap) PC board mount-
ing hardware
M3X8 (8r-Tap)
mounting
hardware
Power amp PC
board ass’y
(Br-Tap)
Sy,
Powerlytic capacitor
Sub panel
Lamp PC
board ass’y
PANEL ASS’Y
Lamp PC
board ass’y
@
Note:
Since +50V or —50V is fed to the
heat sink directly, insulate the heat
sink from the chassis when repair-
ing.
M3X8 (Br-Tap)
M3X8
(Br-Tap)
2
Panel ass’y
M3X 10 (Br-Tap)
PC board mount-
ing hardware
> Power transistor
g-
Heat sink
Lamp
(B30-0084-05)
Meter
(B31-0262-05)
The lamp PC board ass’y can be
removed by pulling up the hook.
Knob y
(K27-0051-04 :
Knob ; : (N87-3008-46)
(K23-028 1-04)
@ Remove the protection
cover,
@ The meter can be remov-
ed by removing the screws
illustrated.
Insulated sheet
Knob
{(K23-0280-04)
Varistor
(STV-4H (W))
REAR
PANEL
ASS’Y
TUNER
PC
BOARD
ASS’Y
DIAL
CALIBRATIONS’
LAMP
The
tuner
PC
board
ass’y
(X05-1500-
)
can
be
removed
by
removing
the
screws
illustrat-
ed,
the
screw
()
(PANEL
ASS‘Y)
and
the
boss
()
(PANEL
ASS’Y).
y Tuner PC board ass’y
Rear
panel
can
be
removed
by
removing
the
screws
illustrated.
Dial
board
ass’y
@ Remove the screw.
@ Take out the lamp win-
dow.
@ Extend the tab, and the
lamp can be replaced.
Note:
It
is
not
necessary
to
remove
the
star-marked
screws
(*).
Terminal board
(E29-0088-05)
(NO9-0287-05)
Note:
The dial calibrations can be
removed by removing the
dial board ass’y and the
lamp window.
Rear panel
M3X8 (Br-Tap)
Lamp window
, Dial calibrations
mounting
board Lamp
(B30-0137-05)
Dial pulley
Chassis

Kenwood KR-6030 Specifications

Amplifier Section

power output	80 watts per channel
total harmonic distortion	0.1% at rated power into 8 ohms
intermodulation distortion	0.1% at rated power into 8 ohms

Power

power consumption	600 W at full power
dynamic power output	340 W
maximum input level for phono	250 mV (RMS), T.H.D. 0.1% at 1, 000 Hz

Weight and Dimensions

weight	30.9 lbs (14.0 kg)
gross weight	35.2 lbs (16.0 kg)
dimensions	W 18-29/32" (480 mm), H 5-7/8" (149 mm), D 15-15/16" (405 mm)