Onkyo TA-2044 Service Manual

TA-2044
Outputs: Line OUT: 2
Std output level: 5OOmV (0 dB)
Opt load impedance:
over 50 kohms
Headphone Jack: 1
Opt load impedance:
8 — 200 ohms
Motors: DC servo motor: 1
DC motor: 2
Heads: Rec/pb head: Special Hard
Permalloy
Erase head: Ferrite
Semiconductors: TR: 57 Diodes: 36 IC: 9
LED: 10
Power Consumption: 27 watts
Dimensions: 435(W) x 112(H) x 371(D) mm
(17-1/8” x 4-3/8” x 14-5/8”)
Weight: 6.0 kg. (13.2 lbs.)
Specifications and external appearance are subject to change
without notice because of product improvements.
SERVICE PROCEDURES
1. Replacing the lamps
This unit used the lamps listed below.
Circuit No. Parts No. —_ Description
PL-902 210149 PLI14V 0.06A W3.0
PL-901 210165 PL1I4V 150mA
Caution; Before replacing the lamps. be sure to unplug
the power supply cable.
. Instruction resistance measurement
Connect the insulating-resistance tester between the
plug of power supply cord and chassis.
Specifications; D model 500 V 3.3+0.33 MQ
G/W models 500 V more than 10 MQ
. Replacing the Hall ICs
Cautions: As the position of leg of DN6838 and DN838
differ, use the same Hall IC when replacing.
DN6838 (222558) DN838 (222470)
Printed side
Holder
§N271901 73
Cut
Jumper lead
NATD-1756
2
FEATURES
Microcomputer Controlled Multi-Program System
A highly efficient microcomputer is used to provide a wide
range of programmable functions. The song location
function rapidly winds tape directly to the beginning of
any particular song on a cassette up to nine songs away
from the present location in either direction. A repeat
function repeatedly plays a particular song or the section
of a cassette between the [O00] tape counter point and
either the beginning or end of the cassette up to ten times.
There’s also an automatic music search function that plays
about the first eight seconds of each song in the forward
or reverse direction.
Auto Space Rec Mute Button
Press this button while you’re making a recording to auto-
matically enter a blank section of tape about five seconds
long. Once the blank section has been entered, the TA-2044
will automatically switch to the REC-PAUSE mode. To
continue recording, simply press the PLAY button. This
function is convenient for temporarily interrupting record-
ing, editting tape during dubbing and inserting unrecorded
sections long enough for the automatic continuous song
location function to detect.
Special Hard Permalloy Head Designed for Metal Tapes
The special process used to obtain the extra hard permalloy
head surface ensures greater resistance to wear and a better
saturation flux density in order to take full advantage of
high performance metal tapes. The hyperbolic shape also
improves head-to-tape contact.
2-Motor Tape Transport with Separate Head Assembly
Motor
The tape transport system, along with the heads, determines
the level of performance of a cassette deck. To guarantee
extremely stable and accurate transport the TA-2044
uses a DC servo controlled capstan motor. This motor is
frequency or instantaneous changes in load. A highly
reliable, simple drive transmission system and precision
vertical cassette holder further enhance overall accuracy
and stability. As a result, wow and flutter is under 0.04%.
In addition, separate DC motors drive the reel tables and
head base and the head assembly is constructed to move
silently with no annoying clicks.
Dolby B and C Noise Reduction
Along with standard Dolby B NR, the TA-2044 also has
the even more effective Dolby C NR system. Dolby C
NR reduces tape background noise by 20 dB at 5 kHz,
about 3 times more than Dolby B NR. In addition to its
wide band noise reduction, Dolby C NR uses a sliding band
technique that varies the band width of noise reduction
according to the input level, thereby avoiding noise “pump-
ing”. Dolby C NR also has an anti-saturation effect to
reduce the chance of tape saturation in the high range. All
these features combine to eliminate the adverse effects on
tape sound that other noise reduction systems can cause.

Onkyo TA-2044 Specifications

General

Brand	Onkyo
Model	TA-2044
Category	Tape Deck
Language	English