Onkyo TAR 22 Service Manual

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SERIAL No. 3218

ONKYO SERVICE MANUAL

STEREO CASSETTE
TAPE DECK
MODEL TA-R22

Black and silver models

UDN, UDC, UD 120V AC, 60Hz

UG 220V AC, 50Hz

UW 120 or 220V AC, 50/60Hz

UQA, UQB 240V AC, SOHZ

SAFTY-RELATED COMPONETN WARNINGI! SPEC|F|CAT|ONS

COMPONENTS IDENTIFIED BY MARK A ON Track Format: 4 tracks, 2 channels
THE SCHEMATIC DIAGRAM AND IN THE PARTS Erasing System: AC erase
LIST ARE CRITICAL FOR RISK OF FIRE AND Tape Speed: 4.8 cm/sec.(1-7/8 i.p.s.)
ELECTRIC SHOCK. REPLACE THESE COM- Wow & Flutter: 0,07% (wms)

PONENTS WITH ONKYO PARTS WHOSE PARTS

Frequency Response: 20 7 15,000 Hz (30 7 14,000 Hz
NUMBERS APPEAR AS SHOWN IN THIS MANUAL.

i3dB) (normal position tape)

MAKE LEAKAGE-CURRENT 0R RESISTANCE 20 16,900 Hz?" 15,000 HZ

MEASUREMENTS To DETERMINE THAT EX- i3) 011% P°Sm°n tape)

POSED PARTS ARE ACCEPTABLY INSULATED 2° 17,000 "199 163000 HZ

FROM THE SUPPLY CIRCUIT BEFORE RETURN- 4 _ _ 3) (metal P951? mp9)

INC THE APPLIANCE TO THE CUSTOMER. Signal-to-Nmse Ratio: 1:81:13 (316ml posmon tape, Dolby
01]

A noise reduction of 10dB above
SkHz and SdB at lkHZ is possible
with Dolby B NR. A noise reduc-
tion of 20dB at SkHZ is possible
with Dolby C NR.
Input Jacks: Mic jacks: 2
Input sensitivity: 0.6mV/
600 ohms
Input impedance: 2I7 kohms
Line IN: 2
Input sensitivity: 60mV
NKY ® Input impedance: 50 kohms

DIN in jack: 1

Minimum input level: 0.1mV/
l kohm

Input impedance: 2.7 kohms

_1_

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Outputs:

Motors:
Heads:
Power Supply:

Power Consumption:

Line OUT: 2
Std output level: SOOmV (OdB)
Optimum load impedance: over
50 kohms

Headphone jack: 1
Optimum load impedance: 8 -
200 ohms

DIN out out jack: l
Std output level: SOOmV (OdB)
Optimum load impedance: over
50 kohms

DC servo motor: 1

DC motor: 1

Rec/PB head: Special Hard Permalloy

Erase head: Ferrite

ACZZOV/SOHZ, 120/220V, 50/60Hz,

240V/50Hz, I20V/60Hz

23 watts

Dimensions: 435(W) x 112(H) x 258(D)mm
(17-1/8 x 4-7/16x10-3/16")

Weight: 4.5 kg. (9.9 lbs.)

0 Models for use with only an AC 120V power supply are

not equipped with 2 DIN terminal.
Specifications and external appearance are subject to
change without notice,

SERVICE PROCEDURES

1. Replacing the lamp

This unit used the lamp listed below,
Circuit No. Parts No. Description
PL601 210090 PL14V 150mA

Caution: Before replacing the lamp. Be sure to unplug the

2.

power supply cable.

Instruction resistance measurement

Connect the insulating-resistance tester between the plug of
power supply cord and chassis.
Specifications; 500V more than lOMQ

3.

Replacement of power supply cord

There are two power supply cord outlets on the strain-
relief. Insert them in prescribed direction to ensure safety,
AS-UC-3 (UD model) should be inserted length-
wise and other types of cords should be inserted horizontal-

ly.

Power Supply Cord Power Supply Cord

3
length wise Horizontal
direction direction

Blank Skip Operation

When no signal is detected on the tape for more than 20
seconds during playback, blank skip functions just as the
song location function to locate the beginning of the next
song and then return the deck to the play mode. Blank skip
operates only when the blank skip switch is on. The same
blank tape detection circuit is used during both AMCS and
standard playback; the gain is changed depending on
whether AMCS or blank skip is being used.

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