Onkyo P 301 Service Manual

Page 1

P-301

ReI.No. 3387

ONKYO@ SERVICE MANUAL
Infrared Wireless Remote Controlled
Stereo Preamplifier

MODEL P-301

UD 120V AC, GUI-I2

SAFETY-RELATED COMPONENT WARNING
COMPONENTS IDENTIFIED BY MARK A ON
THE. SCHEMATIC DIAGRAM AND IN THE
PARTS LIST ARE CRITICAL FOR RISK OF FIRE
AND ELECTRIC SHOCK. REPLACE THESE
COMPONENTS WITH ONKYO PARTS WHOSE
PARTS NUMBERS APPEAR AS SHOWN IN THIS
MANUAL.

MAKE LEAKAGE~CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT
EXPOSED PARTS ARE ACCEPTABLY
INSULATED FROM THE SUPPLY CIRCUIT
BEFORE RETURNING THE APPLIANCE TO
THE CUSTOMER.

TABLE OF CONTENTS

Specifications.

Remme control lransmmer
Block diagram ....................
IC Block diagram...
From panel Iacililicsn
Chassis-exploded view ..
Primed board pans list...
Packing pans list

Schematic diagram .
System connections

ON KYO.
AIIIIIII BIIMPIIIIHIIS

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P-30

SPECIFICATIONS

Rated Output and Impedance: lV/3.3 Kohms MAX 5V

Total Harmonic Distomon:
IM Distortion:

Frequency Response:
Sensitivtty and Impedance:

0.009%

0.09%

15 - 30,000 Hz :1dB

Phone: 2.5mV/50 kohms

Tuner, CD. Tape Play
VCR, VDP Sound: 150mV/50 kohms

Tape Rec: 150mV/2.2 kohms
(phono)
Phono Overload: lZOrnV RMS at 1 kHz, 0.09% THD
Bass Control: :10 dB at tOOHz
Treble Control' :lO dB at 10,000 Hz

-15 dB at 50Hz
*6 dB at 10.000Hz
Signal to Nolse Ratio: Phono:

Selective Tone Control:

General
Power Supply: AC120V, 60Hz

Dimensions (W x H x D): 455 x 110 x 312mm

83dB Source Direct: IOOdB (IHF»A, I V output)

17-15/16" x 4-3/8" x 12-1/4"

Weight: 4.1 kg, 9.0 lbs.

Remote control transmitter FIG-200$

Transmitter: InIrared

Signal range: Approx. Smeters (flGlt 4")
Power supply: Two "AA" batteries (1.5V x 2)

Specmcations and features are subject to change Without notice,

REMOTE CONTROL TRANSMITTER

System Power Button (POWER)
This button has the same function as the
POWER button on the front panel.

Input Selector Buttons

(TUNER. PHONO. CD. TAPE- TAPE-1,
VIDEO-2. VIDEO-1)

These buttons have the same functions as the
input selector buttons on the front panel.
NOTE: The AUX button does not operate on
the P-301.

Source Direct Button (SOURCE DIRECT)
This button has the same function as the
SOURCE DlRECT button on the trout panel.

Audio Muting Button (AUDIO MUTING)
and Indicator

This button temporarily switches oil the sound
lrom the speaker or headphone. Pressing this
button will operate the P-SOl's audio muting
circuit. The audio muting indicator
_will light. Pressing the button again
will turn off the audio muting.

This function can be operated with the remote
control transmitter only.

Volume Buttons( I up. I DOWN)
These buttons have the same lunction as that
ol the volume control. The volume level can
be adjusted by pressing the UP or DOWN
button, with the volume control knob rotating
simultaneously.