Panasonic rr 930 service manual

Page 2

SAFETY PRECAUTIONS

Before servicing. unplug the power cord to prevent an electric shock.

When replacing parts. use only manufacturers recommended components for saiety,
Check the condition of the power cord. Replace ii wear or damage is evident.

After servicing, be sure to restore the lead dress, insulation barriers, insulation sheets, shields, etc.
Before returning the serviced equipment to the customer, be sure to make the iollowing
insulation resistance test lo prevent the customer from being exposed to a shock hazard.

IMPN.

INSULATION 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 the 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 SM) and 5.2 MD to all exposed parts. (Fig. 1)
Equipment without antenna terminals should read approximately infinity to all exposed parts.
(Fig- 2)
sNote: Some exposed parts may be isolated Irom the chassis by design. These will read

infinity.

4. If the measurement is outside the specified limits, there is a possibility of a shock hazard.
The equipment should be repaired and rechecked beicre it is returned to the customer.

LOCATION OF CONTROLS AND COMPONENTS

Antenna
lermrnal NJ I

EXDosed 9

melal
pail

Exposed
MCIOI

pail

0 Speaker (60, 6.5 cm)

9 Power Switch (POWER)

9 Power Indicator (POWER)

0 Recording indicator (REC)

a Quick Erase Indicator
(QUICK ERASE)

9 Tape Running Indicator
(TAPE RUN)

0 Tape Counter and Reset Button
(COUNTER)

9 Cassette Holder

9 Stop/Elect Button
(I STOP/A EJECT)

(a Fast Forward/Cue Button
(<4 FF/CUE)

0 Playback Button (4 PLAY)

® Rewind/Review Button
(REW/REV >>)

m Record Button( 0-)

0 Pause Button (I I PAUSE)

6 Volume Control (VOLUME)

0 Built-In Microphone (MIC)

0 Tone Control (TONE)

0 Auto Back Space Control
(BACK SPACE CONTROL)

0 Tape Speed Control
(SPEED CONTROL)

® Tape Speed Selector
(TAPE SPEED)

@ Monitor Jack (MONITOR)
(an, (53.5)

Q External Microphone Jack (MIC)
(6000, $3.5)

w Remote Jack (REMOTE)

® Foot Controller Jack
(REMOTE/REVIEW)

@ AC Power cord

Ohmmeler
F ig, 1

Resistance : 3 M9 -5 2 M9

Oflmmeler
Fig. 2

Resistance = Approx no

OACCESSORIES
/-"fl
Head Set

Foot Controller

® Back Space Pedal
(BACK SPACE)
® Start Pedal (START)

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