Panasonic RX-C300 - Location of Controls and Components

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CONTENTS
ITEM PAGE ITEM PAGE
Safty Precautions/Insulation Resistance Test ............... 2 SElectricaliPants:List’ c.oc5cBeiccoiiageaectacadiomatesaeds 20
e@Location of Controls and Components ................0-5- 2 Schematic Diagram (Cassette Deck) Model RX-C300........ 22
eDisassembly Instructions ............. 0.0 eee eee eee eee 4 @Circuit Board and Wiring Connection Diagram (Cassette Deck)
e@Measurements and Adjustments .................0000 eee 6 Model. RX=C300 | iiss jsisisse sai Seastvartsnseene, due vausravaceiaes wubnenaresina ded avinere 25
SCITCUIE DESCHIPLIONS: eceessce 5 cenecanseh sd seeiscoip ie sreverecsity sega eeeneeit 9 e@Mechanism Parts Location .............. eee eee eee ees 28
eSchematic Diagram (Tuner) Model RX-C300 .............. 11 @Cabinet Parts LOCAtOM s.sic3:5:é:scsce-s aisosrare sectaraers drarerarannaeeiara aes 29
eSchematic Diagram (Amplifier) Model RX-C300 ............ 14
eCircuit Board and Wiring Connection Diagram (Tuner Amplifier)
Model RX-C300 ......... cece cece eee eee eee eeee 17
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SAFETY PRECAUTIONS (For 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,
sheilds, 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.
INSULATION RESISTANCE TEST (For u.s.a.)
1.
2.
3.
Unplug the power cord and short the two prongs of the plug with a jumper wire.
Turn on the power switch.
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 3MQ and 5.2MQ to
all exposed parts’. (Fig. 1) Equipment without antenna terminals should read
approximately infinity to all exposed parts. (Fig. 2)
* Note: Some exposed parts may be isolated from the chassis by design. These will read
infinity.
. If 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.
Antenna
terminal
Exposed
metal
part
Ohmmeter
Fig. 1
Resistance = 3M2—5.2MQ
Exposed
metal
part
Ohmmeter
Fig. 2
Resistance = Approx
LOCATION OF CONTROLS AND COMPONENTS