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Hi SPEAKER SYSTEM
Mi GENERAL
Type
1-Way speaker system
Power consumption
30W
Speakers
16cm cone type
Power supply
AC 120V, 60Hz
Impedance
8 ohms
Dimensions (W x H x D)
430 x 320 x 359mm
Input power
6W (music)
(16-19/32" x 12-19/32" x 14-1/8")
Output sound pressure level
88dB/W (1.0m)
Weight
5.4kg (11.9lb.)
Dimensions (W x H x D)
209 x 320 x 146mm
Weight
2.1kg (4.6 1b.)
Specifications are subject to change without notice for further
improvement.
Weight and dimensions shown are approximate.
gm CONTENTS
Page
SAFETY PRECAUTION
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EXPLODED
VIEW OF
LOCATION
OF CONTROLG............:::scccccssssseeesenes
saat
CASSETTE
DECK MECHANISM............:::ssccscsssseenees 23,24
PROTECTION
CIRCUITRY .........ccccsssecccsssesseeeeeneee
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REPLACEMENT
PARTS LIST...............
BEFORE
REPAIR AND ADJUSTMENT..................
BLOCK
DIAGRAM
.............sceseeenses
DISASSEMBLY
INSTRUCTIONG................:sc00000
SCHEMATIC
DIAGRAM
MEASUREMENTS
AND ADJUSTMENTS
..........
DESCRIPTION
OF LCD PANEL
HOW TO REPLACE
IC'S(Small outline type)
TERMINAL
GUIDE OF IC'S,
FUNCTION
OF TERMINALS ...............:ccccsssesseseneeeeeeeeeees
TRANSISTORS
AND DIODEG. .........:sccssccccssssserecseensrenens
RESISTORS & CAPACITORS ............csssssee
REPLACEMENT PARTS LIST
WIRING CONNECTION DIAGRAM
EXPLODED VIEW OF CABINET AND CHASSIS
PRINTED CIRCUIT BOARDS ............ccccsscsseeesesseeeeens
EXPLODED VIEW OF RECORD PLAYER................»
@
SAFETY
PRECAUTION
(this "safety precaution" is applied only in U.S.A.)
. Before servicing, unplug the power cord to prevent an electric shock.
. When replacing parts, use only manufacturer's recommended components for safety.
. Check the condition of the power cord.
Replace if wear or damage is evident.
. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
. Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to
prevent the customer from being exposed to a shock hazard.
OWN
e INSULATION
RESISTANCE
TEST
1. Unplug the power cord and short the two prongs of the plug with a jumper wire.
2. Turn on the power switch.
3. Measure
the resistance value with ohmmeter between the jumpered AC plug and each exposed metal cabinet part, such as
screwheads antenna, control shafts, handle brackets, etc.
Equipment with antenna terminals should read between 3MQ2
and 5.2MQ to all exposed parts.
(Fig. A)
Equipment without antenna terminals should read approximately infinity to
all exposed parts. (Fig. B)
Note:
Some exposed parts may be isolated from the chassis by design.
These will read infinity.
Antenna
terminal
Exposed
Exposed
metal
metal
part
part
Ohmmeter
Ohmmeter
(Fig. A)
(Fig. B)
Resistance = 3M2—5.2MQ
Resistance = Approx oo
4. |f the measurement
is outside the specified limits, there is a possibility of a shock hazard.
The equipment should be
repaired and rechecked before it is returned to the customer.
—2—
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