Onkyo TX-866 User manual

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e Congratulations on your purchase of the ONKYO TX-866, TX-844 Tuner-Ampiifier.
@ Please read this manual thoroughly before making connections and turning power on.
® Following the instructions in this manual will enable you to obtain optimum performance
and listening enjoyment from your new TX-866, TX-844. @ Please retain this manual for future
reference.
CONTENTS
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SPECIFICATIONS ©... .0 cece cece ete c ence cece cece ce ee ne een eenE CEE PEE CE COE PEE E PEE EEOC SS OE CDDP DOES ede Dn donee enecae saa tn esse tenes eeeseeeeseaeengees 14
Features
® Plenty of Clean Power
TX-866: 80 watts of continuous power per channel into 8 ohms with no more than 0.04% total harmonic distortion. (2 x 185 watts dynamic
power at 2 ohms)
TX-844: 60 watts of continuous power per channe!} into 8 ohms with no more than 0.08% total harmonic distortion. (2 x 155 watts dynamic
power at 2 ohms)
@ Direct Access Tuning
Instead of using the UP or DOWN tuning keys to scan through the available frequencies untill you find your station, Direct Access Tuning
lets you punch in the broadcast frequency directly using the 10 numeric keys.
For example, to select 103.5 MHz you simply press the 1, 0, 3 and 5 keys.
® Classified Memory Preset
The memory presets are divided into six classes, A through F, which you can use for different types of programs (rock, news, classical,
etc.). Or you each member of the family can have a separate class (class A for Dad, class B for Mom, class D for Junior). You can assign
each preset station to one of the classes. The tuner will give you a sample of each station, in turn, in a particular class.
@ Multiple Room Remote System
You may wish to install an optional remote sensor in another room in which you have installed an additional set of speakers. Then you
will be able to operate the TX-866 or TX-844 by remote control while listening in that room, without having to go back to the room in
which the tuner amplifier is located.
You can also install yet another sensor and purchase an optional universal remote control to operate a VCR, videodisc player, TV monitor,
and/or other AV components from other manufacturers; this too is possible from another room.
@ 40-Station FM/AM Random Preset Memory
® APR (Automatic Precision Reception) System
® All Full-Logic Keys (Including Power On/ Standby)
® Seven Input sources Including Video tnput and Dubbing Facilites
® Dynamic Bass Expander and Stereo Image Expander (TX-866)
@ Selective Tone/Loudness Control
® Remote Controllable Motor-Driven Volume Knob
® Sleep Timer (Max. 90 Minutes; Operable via Remote Control)
CAUTION “WARNING”
“TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE “TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT
COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.”
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.”
yi
@ For models having power cords with a polarized plug.
CAUTION: To PREVENT ELECTRIC SHOCK DO NOT USE
THIS (POLARIZED) PLUG WITH AN EXTENSION CORD, RE-
CEPTACLE OR OTHER OUTLET UNLESS THE BLADES CAN BE
FULLY INSERTED TO PREVENT BLADE EXPOSURE.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
® The lightning flash with arrowhead symbol, within
_ @ Sur les modéles dont la fiche est polarisée.
an equilateral triangle, is intended to alert the user
to the presence of uninsulated “dangerous voltage” ATTENTION: pour PREVENIR LES CHOCS ELECTRIQUES
within the product's enclosure that may be of suffi- NE PAS UTILISER CETTE FICHE POLARISEE AVEC UN PRO-
cient magnitude to constitute a risk of electric shock LONGATEUR, UNE PRISE DE COURANT OU UNE AUTRE SORTIE
to persons. DE COURANT, SAUF SI LES LAMES PEUVENT ETRE INSEREES
A FOND SANS EN LAISSER AUCUNE PARTIE A DECOUVERT.
® The exclamation point within an equilateral triangle
is intended to alert the user to the presence of im-
portant operating and maintenance (servicing) in-
structions in the literature accompanying the appli-
ance.
—j|-

Important safeguards
ee
1. Read Instructions — All the safety and operating instructions
should be read before the appliance ts operated.
2. Retain Instructions — The safety and operating instructions
should be retained for future reference.
3. Heed Warnings - Ali warnings on the appliance and in the op-
erating instructions should be adhered to.
4. Follow Instructions — All operating and use instructions should
be followed.
5. Water and Moisture — The appliance should not be used near
water — for example, near a bathtub, washbow/l, kitchen sink, laundry
tub, in a wet basement, or near a swimming pool, and the like.
6. Carts and Stands -— The appliance should be used only with a
cart or stand that is recommended by the manufacturer.
6A. An appliance and cart combination
should be moved with care. Quick stops,
excessive force, and uneven surfaces
may cause the appliance and cart
combination to overturn.
PORTABLE CART WARNING
7. Wall or Ceiling Mounting — The appliance should be mounted
to a wall or ceiling only as recommended by the manufacturer.
8. Ventilation — The appliance should be situated so that its location
or position does not interfere with its proper ventilation. For example,
the appliance should not be situated on a bed, sofa, rug, or similar
surface that may block the ventilation openings; or, placed in a built-in
installation, such as a bookcase or cabinet that may impede the flow
of air through the ventilation openings.
9. Heat — The appliance should be situated away from heat sources such
as radiators, heat registers, stoves, or other apphances (including
amplifiers) that produce heat.
10. Power Sources - The appliance should be connected to a power
supply only of the type described in the operating instructions or as
marked on the appltance.
11. Grounding and Polarization - The precautions that should
be taken so that the grounding or polarization means of an appliance
is not defeated,
12. Power-Cord Protection — Power-supply cords should be routed
so that they are not likely to be walked on or pinched by items placed
upon or against them, paying particular attention to cords at plugs,
convenience receptacles, and the point where they exit from the ap-
pliance.
13. Cleaning - The appliance should be cleaned only as recommended
by the manufacturer.
14. Power Lines —- An outdooor antenna should be located away from
power lines.
15. Nonuse Periods - The power cord of the appliance should be
unplugged from the outlet when left unused for a long period of time.
16. Object and Liquid Entry ~ Care should be taken so that objects
do not fall and liquids are not spilled into the enclosure through
openings.
17. Damage Requiring Service - The appliance should be serviced
by qualified service personnel when:
A. The power-supply cord or the plug has been damaged; or
B. Objects have fallen, or liquid has been spilled into the appliance;
or
C. The appliance has been exposed to rain; or
D. The appliance does not appear to operate normally or exhibits a
marked change in performance; or
E. The appliance has been dropped or the enclosure damaged.
18. Servicing ~- The user should not attempt to service the appliance
beyond that described in the operating instructions. All other servicing
should be referred to qualified service personnel.
bo
19. Outdoor Antenna Grounding — !f an outside antenna is con-
nected to the receiver, be sure the antenna system is grounded so as
to provide some protection against voltage surges and built up static
charges. Section 810 of the National Electrical Code, ANSI/NFPA
No. 70-1984, provides information with respect to proper grounding
of the mast and supporting structure, grounding of the lead-in wire
to an antenna discharge unit, size of grounding conductors, location
of antenna-discharge unit, connectian to grounding electrodes,
and requirements for the grounding electrode. See Figure 73.1.
FIGURE 73.1:
EXAMPLE OF ANTENNA GROUNDING AS PER NA-
TIONAL ELECTRICAL CODE
| ANTENNA
ate" LEAD IN
WIRE
GROUND
CLAMP
ANTENNA
DISCHARGE UNIT
(NEC SECTION 810-20)
ELECTRIC
SERVICE
EQUIPMENT
<“GROUNOING CONDUCTORS
(NEC SECTION 810~21)
GROUNO CLAMPS
Sg POWER SERVICE GROUNOING
° ELECTRODE SYSTEM
(NEC ART 250, PART H)
NEC ~ NATIONAL ELECTRICAL CODE
SZ2898A

Precautions
ne
1. Warranty Card
The serial number is written on the rear panel of this unit. Copy
the sertal number and model number onto your warranty card
and keep it in a safe place.
2. Recording Copyright
Recording of copyrighted material for other than personai use
is illegal without permission of the copyright holder.
3. AC Fuse
The fuse is located inside the chassis and is not user serviceable.
lf power does not come on, contact your Onkyo service center.
4. Care
From time to time you should wipe off the front and rear panels
and the cabinet with a soft cloth. For heavier dirt, dampen a soft
cloth in a weak solution of mild detergent and water or a mild
ammonia cleaner, wring it out dry, and wipe off the dirt. Fol-
lowing this, dry immediately with a clean cloth. Do not use rough
material, thinners, alcoho! or other chemical solvents or cloths
since these could damage the finish or remove the panel fettering.
Before using this unit
1. Supplied Accessories
AM loop T-shaped FM
antenna x 1 antenna X 1
2. Transmitter Battery Insertion
Precautions when using batteries
@ The remote control transmitter is powered by two batteries.
Before using this unit for the first time, insert the two batteries
(included) as shown in the diagram.
@® Average battery life is about one year. This period may be shorter
depending on the frequency of use and environment (temper-
ature and humidity) in which the remote contro! transmitter is
used.
Memory Preservation
This unit does not require memory preservation batteries. A
built-in memory power back-up system preserves the contents
of the memory during power failures and even when the unit
is unplugged. The unit must be plugged in and the power switch
turned on and off once tn order to charge the back-up system.
Note that since this is not a permanent memory, the power switch
must be turned on and off a few times each month to keep the
back-up system operative.
The memory preservation period after power has been turned
off varies depending on climate and placement of the unit. On
the average, memory contents are protected over a period of a
few weeks after the last time power has been turned off. This
period is shorter when the unit is exposed to a highly humid
climate.
anf poe,
fRi remote contro! cable x 1 Remote control transmitter x 1
Batteries x 2
If the remote control transmitter does not operate even though
front panei controls function normally, the batteries should be
replaced. Use only batteries listed in the following chart.
Manga- AA
in, 1.5V R6
UM-3
Do not leave an expired battery in the case as it may leak
or damage the battery case.
When inserting the batteries, be sure the (+) and (—) ends
are properly aligned.
Do not use nickel-cadmium (rechargeable) batteries.
Do not use one specified (manganese) battery and one al-
kaline Battery at the same time.
Replace both batteries at once; do not use one old and one
new battery together.

System connections
en
General
Note to CATV system installer:
Switch
the
main
power
switch
off
before
performing
connections.
This
reminder
is
provided
to
call
the
CATV
system
installers
at-
Also
be
sure
to
perform
left
and
right
channel
connections
properly.
tention
to
Article
820-22
of
the
NEC
that
provides
guidelines
for
proper grounding and, in particular, specifies that the cable ground
shall be connected to the grounding system of the building, as close
to the point of cable entry as practical.
Indoor T-Shaped FM 75 ohm coaxia! cable
antenna or 300 ohm
(3C-2V, 5C-2V)
FM QCutdocr Antenna
Outdoor AM antenna
S— AM LOOP
Connect only one
ANTENNA
FM antenna at
one time ( |
SS
a
Ti/
POWER
AMPLIFIER
1 4 ‘
l
1
!
\
VIDEO DISC PLAYER
PRE
or VIDEO CASSETTE
AMPLIFIER PLAYER (VCR-1)
VIDEO CASSETTE
RECORDER (VCR-2)
\
\
|
1
\
Monitor TV
ye ot
ALTIC:
my
oO NOT OPEN
ALTION SPEAREPR [MPEP Anos
ak a cay ne OD he!
ONKYO.
MODEL NO. TX-866
ONHYO coor yes
Ground connection ts nat
necessary for turntabte
without ground lead
eb AC POWER
fF SUPPLY CORD
+] |- 1,
to SPEAKER (B)
+
SPEAKER IMPEDANCE
|
Oe
A
or
8:
4
ohms
MIN/SPEAKER
SS ee FEL PLAY He er A+ B: 8 ohms MIN/SPEAKER
COMPACT CASSETTE TAPE CASSETTE TAPE
TURNTABLE
psc
DECK
1
DECK
2
SPEAKER
(A)
PLAYER or GRAPHIC
EQUALIZER
FM Antenna Connections
Use the T-shaped antenna if you live in an area where signal strength
of FM broadcasts is high. Connect the antenna to the FM 300 ohms
terminals and place the antenna on a wall or other surface in the
position in which reception is best. If signal strength ts low in your
area, use a multi-element FM outdoor antenna and connect to this
unit using a 75 ohm coaxial cable because this type of cable is
more resistant to interference than 300 ohm cable. Consult your
Onkyo authorized service center about the right type of antenna
for your area.
Directional linkage
type splitter
NOTE:
To receiver
To TV (or VCR)
Do not use the same antenna for both FM and TV (or VCR)
reception since the FM and TV (or VCR) signals can interfere
with each other. If you must use a common FM/TV (or VCR)
antenna, use a directional linkage type splitter.

AM Antenna Connections
An AM loop antenna is included in the installation instructions bag.
Take out the connection jine and connect it to the AM antenna
terminals. This loop antenna can be placed on top of any stable
surface or attached to a wall. Try several positions to determine
which gives the best reception. Be sure the antenna is not near a
speaker, power cord, television set, VCR, or motorized appliances.
When using an external AM antenna, do not remove the loop an-
tenna: connect both antennas to the AM antenna terminals.
AM loop antenna assembly
Cannect ta the AM
antenna terminals.
®
Remove the vinyl tie and
take out the connection
line.
Bend in the reverse
direction
- C
aT,
@)
a. With the antenna on
top of any stable surface
b. With the antenna
attached to a wall
I
AM reception is easily affected by television sets and VCRs.
Installation hole
Mount on a wall, etc.
Therefore, AM reception may be poor if this unit is placed too
close to a TV or a VCR.
Speaker Connections (SPEAKERS)
1. Connect the speakers to A and/or B terminals.
2. When connecting speakers, proper polarity is important. Always
connect the (+) terminal (red) on this equipment to the (+)
terminal on the speaker and the (—) terminal (black) on this
equipment to the (—) terminal on the speaker.
3. Do not connect a single speaker in parallel to the right and left
channel outputs.
4. Use speaker cables that have a low impedance and that are as
short as possible.
« Attach speaker cables to the rear panel speaker terminals with
care, being sure that connections are made firmiy and that there
is no possibility of a short circuit occurring.
Compact Disc Player or Other Component Connections
(CD)
Connect the output leads of the CD player or an additional audio
camponentto the CD jacks. An Onkyo CD player with remote contro!
that has the FRI mark can be operated by the TX-866/844 (Please
refer to “Connections for Remote Control” on page 6.) For more
details, refer to your CD player instruction manual.
Turntable Connections (PHONO)
Connect the output Jeads of the turntable to the PHONO jacks.
Be sure to connect the ground (earth) lead wire from the turntable
to the ground terminal (GND). Lack of proper ground connection
will cause hum. Turntables not provided with GND wires do not
need to be connected.
1. Place the turntable on a firm shelf or deck free from vibrations
(especially those generated by the speaker system). If the
turntable is permitted to pick up such unwanted vibrations, not
only with the performance of the unit drop, but distortion in the
bass frequencies and howling In the speakers may also occur.
2. Check the turntable instruction manual for any other precautions.
3. The loud noises that occur when connecting and disconnecting
the turntable leads, replacing the cartridge or lowering the
tonearm could damage the speakers. Always turn the power
switch off before making connections.
4. If an Onkyo turntable with remote control jack is used with this
unit, the remote control transmitter can also be used to start and
stop turntable operation. In this case, the turntable and
TX-866/844 must be connected with a remote control cable.
Insert the plug into the PHONO jack of the REMOTE CONTROL
on the rear panel of the TX-866/844. (Please refer to “Con-
nections for Remote Control on page 6.)
Tape Deck and Graphic Equalizer Connections (TAPE-1,
TAPE-2)
1. This unit has facilities for two tape decks. If you are using only
one tape deck, connect it to the TAPE-1 jacks. If you have two
tape decks, connect one to the TAPE-1 jacks and the other to
the TAPE-2 jacks.
2. Connect the output leads of the tape decks to the TAPE-1 and
TAPE-2 “PLAY” jacks. Connect the input leads of the tape decks
to the TAPE-1 and TAPE-2 “REC” jacks of the unit. For more
details, refer to your tape deck instruction manual.
3. To connect a graphic equalizer, too, use the TAPE-2 jacks and
connect the second tape deck to the tape jacks of the equalizer.
(See the figure)
To connect a graphic equalizer and second tape deck
to the TAPE-2 jacks.
To TAPE-2 “REC” jacks of TX-866/844
To TAPE-2 “PLAY” jacks of TX-866/844
Graphic equalizer
REC PLAY Second tape deck
4. |f you have an Onkyo tape deck with the FRI remote control
jack, connect it to the TAPE-1 jacks. Please refer to the section
“Connections for Remote Control” on 6 page regarding con-
nection of the remote control cable.

Video Disc Player (or Video Cassette Player) Connections
(VCR-1/VDP)
Connect the ViDEO output of the video disc player to the
TX-866/844 (VIDEO) VCR-1/VDP “IN” jack and the AUDIO
output to the (AUDIO) VCR-1/VDP “IN” jack. The VCR-1/VDP
jack is only for playback, there is no OUT jack. If the audio output
from the video unit is monaural, connect to VCR-2. For more
detatis, refer to the video disc player instruction manual.
Video Cassette Recorder Connections (VCR-2)
1. Connect the VIDEO output of the VCR to the rear panel (VI-
DEO) VCR-2 “IN” jack and the VIDEO input of the VCR to
the rear panel (VIDEO) VCR-2 “OUT” jack. Then connect the
AUDIO output of the VCR to the (AUDIO VCR-2 L and R
“IN” jacks. Finaliy, connect the AUDIO input of the VCR to
the (AUDIO) VCR-2 L and R “OUT” jacks.
2. When using a monaural VCR (having a stngle audio input and
output), set the VCR-2 MODE switch on the rear panel to
MONO and use either the R or L audio jacks. If the switch is
in the “STEREO” position, sound will be heard from only the
right or left speaker system.
REC PLAY REC PLAY
L L L L
©-O© MODE MODE
R
STE
R
A
EO; MONO
R STEREO MONO
MONO VCR Hi-Fi VCR
In case af VCR-2
3. When using a playback-only VCR, only the output connections
need to be performed.
4. For more details, refer to the VCR instruction manual.
TV Connections (MONITOR)
1. Connect the TV VIDEO input to the TX-866/844 MONITOR
“OUT” jack. There ts no need to perform an audio connection
since sound will be sent directly from the TX-866/844 to the
speaker systems.
2. The TX-866/844 does not have an RF converter. Therefore,
it can be used with only a monitor TV equipped with a video
input jack.
3. Since the television set, tuner (FM/AM) section of this unit
can Cause interference that may disrupt sound and/or picture
quality, the TV and TX-866/844 and their respective con-
nection cables should be placed as far apart as possible. The
use of a common TV/FM antenna !s not recommended (see
antenna section).
AC Outlets
@ SWITCHED:
These outlets are switched on and off by the Power button
on the front panel and remote contro! transmitter. Capacity is
total 100 watts.
Amplifier Connections (PRE OUT/MAIN IN)
(TX-866 only}
Another stereo power amplifier can be connected to the “PRE
OUT” jacks. A separate stereo pre-amplifier can be connected to
the “MAIN IN”.
Make sure the power
to the main unit is off
before connecting the
jumper plug. Also,
make sure connec-
Jumper ptug tlons are made to the
correct terminals.
Remove both jumper plugs
Connections for Remote Control (REMOTE CONTROL)
NOTE:
Onkyo turntables, cassette decks, CD players, etc. with the
f21) mark as well as Onkyo turntables without the FRI mark
can be operated by remote control.
@ A cassette tape deck, compact disc player, and turntable
that have the Onkyo FRI mark can be operated using the
accessory remote contro! transmitter with the TX-866/844.
TURNTABLE with the Fl mark
FRE REMOTE
CONTROL
REMOTE CONTRI,
=> TT \ (PHONO \
<S
TX-866 /844
FR REMOTE
CONTROL
COMPACT SS)
DISC PLAYER Connect a remote control cable to the
$ black jack with the f= f mark. Never
FRI REMOTE . ; .
CONTROL connect ft to the green jack with
qe the (I mark
CASSETTE =)
TAPE DECK ta
fAl REMOTE
©
CONTROL
An FRE remote contro! cord equipped with a 0.136" (3.5mm) di-
ameter miniature two-conductor phone plug ts attached to the
TX-866/844 and to any turntable or CD player, with the —RI mark.
TURNTABLE with no f2] mark
For this spectai cable.
_* Contact an Onkyo Service Center.
( For a turntable
TX-866/844
(3.5 mm pin to 7-pin plug cable)
FRI Remote +. HONGO part number: 2040140
CONTROL rl
Insert the accessory [RI remote contro! cable plug attached to
the Onkyo turntable with the FRI mark into the PHONO of the
TX-866/844 REMOTE CONTROL. To use an Onkyo compact disc
player and cassette tape deck with the RI mark, insert the ac-
cessory remote control cable plug into the REMOTE CONTROL jack.
As far as connecting sequence is concerned, it doesn’t matter
whether the cabie is connected from the TX-866/844 to the cassette
tape deck or to the compact disc player. The connecting sequence
is fixed only for the turntable. The remote control transmitter is
operated by facing it towards the remote control sensor of the
TX-866/844.
@® Onkyo turntables that can be remote controlled but de not have
the fA mark. This equipment has a 7-pin DIN jack on the
rear panel. Connect this jack and the jack on the rear of the
TX-866/844 with the special cable for this purpose, which is
sold separately.
NOTE:
Remote control operation is not possible when only the remote
control cable is connected. Remote controi cable and pin cord
must be connected.

Connections for Multiple Room Remote Control
Multiple Room Remote System ({MTFR)
The Onkyo HR-10 Remote Sensor (sold separately) greatly
increases system flexibility. Used with your TX-844 or TX-866,
the HR-10 allows you to control speakers even when you are
not in the same room as the TX-844 or TX-866. In addition to
basic functions like speaker on-off and volume, you can also
control most Onkyo CD Players and Cassette Decks that use the
fRl (Remote Interactive) system. Adding an HE-50AC Remote
Emitter (also available as an option) allows you to control even
the non-Onkyo components in your home entertainment system
from a separate room. The HR-10/HE-50AC combination also
works when the components are behind the closed doors of an
equipment rack or wall unit.
SPEAKER
Remote control
transmitter
Cll it
crtit
HR-10 Remote sensor
2
—
Another (sub) Room
— eee a ee ee
Main Room
— ee
When set up
non-ONK YO i
components T |
| | Black terminal
HE-50AC vo Green terminal
Remote emitter 5 -s TTT
Le
AC adapter
HE-10 Remote emitter head
Remote sensor and emitter (like the HR-10 and HE-50AC) should
be connected with low capacitance shielded two coaxial cable
with mini-plug .136" (%"} (3.5mm) diameter connectors.
Maximum cable length is determined by the characteristics of
the particular cable used but approximately 164’ (50m) lengths
are generally practical. Ready made cable complete with
mini-plug connectors are available in the following lengths: 61%’
(2m) (HW-2), 9876’ (30m) (HW-30), and 164’ (50m) {HW-50). We
also offer HR-10W. (HR-10W is a single-packed system attached
the HW-30 with the HR-10.) Contact your Onkyo dealer or service
center for details. .
(Speaker connections, especially for those in another rooms,
should be made with heavy duty speaker cable. Conventional
18 gauge “zip cord,’ while generally suitable for
speaker/amplifier connections within the main room, may not
be sufficient for tong inter-room runs. Onkyo recommends 16
or 14 gauge stranded wire for these installations.)
(When speakers are connected to B)
When the HE-50AC its being used to control more than one
device from a distance but the infrared beams from the HE-50AC
remote control transmitter alone will not reach these devices
connect an HE-10 (remote emitter head) to the HE-50AC, and
set it up to be aimed at the devices to be controlled. The HW-2
cable 6%' (2m) is attached with the HE-10. Up to three HE-10
units can be used with this equipment.
Ul
Remote control
transmitter
TX-866/844
a ee
CASSETTE
TAPE DECK
COMPACT
DISC PLAYER
>]
non-ONKYO
component
When set up in a rack
which will not permit infra-red
beams to pass
|
|
|
|
|
|
|
Refer to the instruction manual which comes with the HR-10
(HR-10W) when making these connections. To enable remote
control operation when the TX-866/844 is mounted in a rack
which will not permit infra-red beams to pass, place the HR-10
somewhere outside the rack and set the HE-50AC ina position
which will permit remote control operation of the TX-866/844.
Use the cables described above to make the necessary
connections with the HE-50AC. Contact your ONKYO dealer or
service center.
NOTES:
Always unplug the AC power cords for the TX-844/866
and HE-50AC when connecting the MR.
Insert the MR mini-plug into the GREEN TERMINAL on
the rear panel of the TX-844/866.
Don't forget that you can always control your TX-844/866
with its supplied remote controller, even when you are
also using the HE-10/HE-50AC multi-room remote system.
Simply aim the standard remote controller at the
TX-866/844's front panel remote sensor.

NOTE:
® The features, specifications, and display for the TX-866 and
Control positions and names
TX-844 are slightly different. Read this manual carefully to
eens
operate the model you have purchased correctly.
Front panel
For more information about buttons or controls, turn to the page number listed inthe [ J.
FM Muting/Mode Button (MUTE/MODE) [11]
Direct Tuning Button (DIRECT TUNING) [11]
Memory Button (MEMORY) [11]
FM
APR
System
Indicators
[11]
Number
Buttons
(1
~9,
0)
[11]
Speaker Selector Buttons (SPEAKERS) [10] Selective Tone/Loudness Control Knob
(SELECTIVE TONE/LOUDNESS) [10]
Remote Control Sensor
Dynamic Bass Expander
Knob Control
Stand-By/Received
Indicator
(DYNAMIC
BASS
EXPANDER)
[10]
When
this
indicator
is
lit,
the
power
(TX-866
only)
can be turned on by the remote
contro} transmitter. This indicator
also
flashes
when
the
signal
is
re-
Volume
Control
Knob
and
Headphone
Jack
|
|
ceived
from
the
remote
control
tran-
indicator
(VOLUME)[10]
(PHONES)
smitter.
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Power Button (POWER) [10] Tuning Selector Buttons
(DOWN, UP) [11] Balance Control Knob
BALANCE) [1
Classified
Memory
Buttons
Stereo
Image
Expander
Button
(
CE)
[10]
(CLASS-A ~ CLASS-F) [12] (STEREO IMAGE EXPANDER) [10] Treble Control Knob
(TX-866 only) (TREBLE) [10]
Input Selector Buttons:
Audio Selectors (CD, PHONO, FM, AM. Simulated Stereo Button Bass Control Knob
TAPE-1, TAPE-2 MONITOR) [10] (SIMULATED STEREO) [10] (BASS) [10]
Video Selectors (VCR-2, VCR-1/VDP) [10,12] Classified Memory Scan Button
(CLASSIFIED SCAN) [12]
Display and indicators
Video input Selector Indicators Tape-2 Monitor Indicator
Stereo Image Expander indicator
(TX-866 only}
Speaker Selector Indicators
Simulated Stereo Indicator
-— Memory Indicator
. . . y
Audio Muting Indicator
OS SE
SPEAKERS.
>
(7A
CUE
INPUT SELECTOA) FARESUENCY
[ i
VIQEQ > i ¥en 1 __APE-2 MONITOR ME WOR
Sleep Indicator
i
STEREO IMAGE EXPANDER oMUJILATED STEREO
FM Muting On/Off CRITE (5 BB senso
Indicator
ULI VHLAVUUILEHINVTEEL
Preset Station/
Sleep Timer Display
Signal Strength Indicator
FM
Stereo
Indicator
Classified
Memory
Display
Input Selector/Frequency Display

se
$595
Remote control transmitter RC-170S
Power Button (POWER) [10]
input Selector Buttons (TAPE-1,
TUNER, PHONO, CD, TAPE-2, VCR-2,
VCR-1/VDP) [10]
* When the TUNER button ts pressed, the
Sleep Button (SLEEP)
Press to set the power off timer. The sleep timer is a function which
turns off the power to the system from the time it ts set. When this
button is pressed, “90 MIN” ts displayed on the tuner’s display for 5
seconds, and the power goes off 90 minutes later. Each time the button
is pressed during 5 seconds, the timer setting changes, by 10 minute
intervals, such as 80, 70, 60.... While the sleep timer is operating,
the[SLEEP] indicator is lighted. If the sleep button is pressed during
this time, the amount of time remaining on the sleep timer is displayed,
and if the button is pressed during that display, 10 minutes will be
subtracted from that time.
lf the button is pressed when the panel display shows 10 minutes or
less, the sleep timer Is cancelled, and the power is not turned off.
station which was received previously {s
recalled. Selection of AM or FM should be
done on the main unit.
Phono Operation Button (PLAY/REJECT)
This button is used to operate the turntable.
The phono operation button can be used only
when the PHONO input selector button has
been pressed. Each time the phono operation
button is pressed, the remote control transmitter
|
[to
Speaker
Selector
Buttons
(SPEAKERS)
[10]
Tuner Operation Buttons (TUNER) [1712]
CLASS: Class selector button
@ PRESET P -: Preset memory DOWN/UP
buttons
Tape Operation Buttons
(DECK-A, DECK-B)
These buttons control Onkyo double cassette
tape decks that can be remote controlled. Use
alternately emits the play or reyect command.
CD Operation Buttons (CD)
the DECK-B buttons to contro/! single cassette
tape decks with the [FRE mark.
@/un : When this is pressed, the recording
stand-by mode is entered.
< - The tape plays, moving from night
aa
These buttons are used to operate an ONKYO
CD player with the RI mark.
> : Press this button to play the CD
player.
" : Press this button to pause the CD
—-al -e
play back. To resume disc play,
press the PLAY button.
DISC: Press to use for sequential selection
of discs in the order they were
loaded on the CD changer.
HM =:Press this button to stop the CD
player.
: Press this button to go back to the
beginning of the current track and
again to skip back to the previous
track.
: Press this button to skip to the next
track.
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to left, or, in the recording stand-by
mode, recording begins.
| ‘interrupts all operations.
> : The tape plays, moving from left to
right, or, in the recording stand-by
mode, recording begins.
: Fast forward from right to left.
' Fast forward from left to right.
Audio Muting Button (AUDIO MUTING)
and Indicator
This button temporarily switches off the sound
from the speaker or headphone. Pressing this
button will operate the TX-866/844 audio
muting circuit. The audio muting indicator
“AUDIO MUTING” wil! flash. Pressing the
button again or using the POWER button on
the remote control transmitter to turn the power
on will turn off the audio muting.
|
>>
Volume Buttons ( 4 UP, ¥ DOWN) [10]
Using the remote control transmitter
1. Remove the batteries if the remote control transmitter isnot going
to be used for a long time.
2. The batteries of the remote control transmitter must be replaced
periodically.
3. This unit uses infrared rays. Therefore, commands may not be
received properly if the front panel of this unit ts exposed to
bright light. To prevent this from occurring, place this unit so
that it is not dtrectly exposed to bright light.
4. lf this unit is placed inside an audio rack behind a glass door,
the door should not have colored giass or have any decorations
on it, since this could shorten the range or prevent commands
from being received.
5. Use of other infrared remote contro! devices in the same room
may cause interference.
6. The transmitter operates up to a distance of about five meters
(16 feet). The transmitting window must always be pointed at
the reception window when a command is sent to the
TX-866/844.
7. If this remote control transmitter does not operate properly,
confirm that the batteries are not dead. If the problem persists,
contact your Onkyo Service Center.
TX-866/844
Remote sensor
approx. 5m
(16 feet)
4
Remote control transmitter
— 9 —

Operations
ea
To listen to your favorite Source
Gd) POWER
2) SPEAKERS and HEADPHONES
(3) Input Selector Buttons
4) Starting Source Selected in®
©) VOLUME
@ 1} |
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FJETTTIIriT
Tits}
00
0
—--— — —-4
(6) Tone Controls
(1) Press the POWER button to turn on the power.
Press this button to switch the on/off status of the power supply
and the AC outlets on the rear panel. Power can also be turned
on by using the remote contro! power button.
@) Select the desired pair of speakers by depressing the corre-
sponding speaker selector button.
@® This unit can drive two pairs of speakers in pairs (A or B)
or fours (A + B). To listen to both speaker systems at once,
depress both speaker selector buttons.
@ Stereo headphones with a standard binaural plug can be
connected here.
(3) Press one of the desired Input Selector Button (CD, PHONO,
FM, AM, TAPE-1, TAPE-2 MONITOR, VCR-1/VOP or VCR-2)
Make sure that the connections between the input sources are
correct.
@ The button pressed is shown in Display. For FM or AM, the
band and the frequency are shown in Display.
® Confirm that the TAPE-2 MONITOR indicator is off when
asource other than the TAPE-2 MONITOR has been selected.
Also check the audio muting is off.
(4) Start play of the selected input source.
@ Follow the operating instructions of that unit.
@ if FM or AM is selected, please refer to the section “Tuner
Reception’.
(65) Adjust the Volume Control knob to the appropriate level.
® Turn clockwise to increase the volume level. The volume
can be adjusted manually and by the remote contro!
transmitter's Volume UP/DOWN button.
(6) Adjust the Tone Controls to obtain the desired tone setting.
M@ Bass Control Knob (BASS)
Adjust to strengthen or weaken bass response.
M@ Treble Control Knob (TREBLE)
Adjust to strengthen or weaken treble response.
M Balance Control Knob (BALANCE)
Use this control to adjust the relative volume levels of the
left and right speaker systems.
@ Dynamic Bass Expander Level Control Knob (DY-
NAMIC BASS EXPANDER) (TX-866 only)
Set this knob to the right position to add an extra feeling
of power and realism to the low range. Its function is unlike
that of the conventional bass control. Adjust level control
to raise and lower the amount of the dynamic bass expander
effect. Sliding this knob al! the way to the left eliminates
this effect.
M@ Selective Tone/Loudness Contro! Knob (SELECTIVE
TONE/LOUDNESS)
Set this knob to the right position, creating a clear reprod-
uction quality of the ultra low frequencies and high fre-
quencies. Boosting of a selective tone can be controlled via
the level control. Sliding this knob all the way to the left
eliminates this effect.
B Simulated Stereo Button (SIMULATED STEREO)
Switching on this button lights up the display indicator and
adds a stereo-like effect to monaural sources (TV programs,
mono VCR, AM radio, etc).
M@ Stereo image Expander Button (STEREO IMAGE
EXPANDER) (TX-866 only)
Switching on this button lights up the display indicator and
adds an extra feeling of width and depth to stereo sound.
NOTE:
lf an Onkyo cassette tape deck or CD player is connected to the
TX-866/844 with the FRI remote control cable, Operations
and (4) above will differ slightly because the direct function
feature is used. Please see the section ” Direct Function Feature”
on this page.
Direct function feature
NOTE:
This function works when an Onkyo cassette tape deck or CD
player with the fRQI mark is connected to a TX-866/844 with
an fl remote control cable. -
Just by directly operating the desired component (compact disc
player, or tape deck), the TX-866/844 input selector automatically
switches to that component. The component that was being used
stops, and the desired component starts operation. Therefore, it
is Not necessary to switch the TX-866/844 input selector when
changing listening sources.
Example
When the compact disc player's play button is pressed, the
TX-866/844 input selector will switch automatically to “CD.” If the
current listening source was a tape deck, tape playback will stop
and the compact disc player will start playing.
NOTE:
| The direct function feature does not apply to turntable. |
IQ —

Tuner Reception
Press the FM or AM Input Selector button and make sure that the
TAPE-2 MONITOR indicator is off and audio muting is off.
@ Tuning with the TUNING buttons
TUNING
~— DOWN UP»
To tune in an FM or AM station not stored in the memory, press
one of the Tuning selector buttons. If you press UP, the fre-
quency ts increased. Pressing DOWN decreases. Note that the
frequency is changed in 200kHz steps in FM and 10kHz steps
in AM when the Tuning Selector button ts pressed in single steps.
lf this button is pressed continuously for more than 0.5 seconds,
the auto tuning made is entered, and frequencies are scanned
automatically. When a broadcast signal is received, scanning
stops and that frequency is displayed. If a different frequency
is desired, press the button once again.
® Scanning will not stop for broadcasts weak enough to be sup-
pressed by the muting circuit. To receive a weak FM broadcast,
set the MUTE/MODE button to the OFF position and select the
frequency of the desired broadcast station.
M@ Receiving a station by inputting the frequency for the
station directly (Direct Tuning)
If the frequency for the desired station is known, input the fre-
quency number directly.
2) DIRECT TUNING
8)Number Buttons
qd) Press the AM or FM button of the tnput selector buttons.
@) Press the DIRECT TUNING button.
@ “--" or “-" will flash for 16 seconds in the Frequency Display.
(3) Input the desired frequency number by using the Number But-
tons while the cursors are flashing. For instance, if you wish to
receive the station of 88.1MHz. press the Number Buttons, 8,
8 and 1.
@ For AM reception, inputting a number to the 10kHz digit
sets 0 to the 1kHz digit automatically.
@ |f the desired frequency set in this operation does not exist,
the frequency which is the nearest and lower than the desired
frequency will be received. !f the frequency set is not in the
receive frequency range, the frequency flashes for two sec-
onds and then the previous frequency will be displayed.
® \|fawrong frequency has been set, press the DIRECT TUNING
button and start again.
B How to use the FM Muting/Mode Button
(MUTE/MODE)
In the Muting ON (STEREO) setting, FM stereo reception is
possible and the muting circuit Suppresses interstation noise
and weak FM stations. In the OFF (MONO) setting, interstation
naise will be heard and even weak FM stations can be received.
(Muting/ Mode operation is effective for only FM reception.)
MEMORY MUTE/MODE
t___ FRASE ———
® The Stereo indicator will light up !f the broadcast is being
received in stereo. The Stereo indicator will not light up if
the broadcast is monaural or too weak to be received in
Stereo.
Automatic Precision Reception System (FM Mode)
APR system is Onkyo’'s unique computer-controlled system. |
APR system automatically sets the RF stage gain (Distance/
Local}, the NR function (OFF/ON) (TX-866 only) for reducing
noise in weak signals, the HI- BLEND function (OFF/ON) for
reducing noise In weak stereo signals, and the auto stereo/mono
reception modes to the proper settings for the qualily of the
broadcast currently being received. This indicator changes each
time the APR circuit switches between the LOCAL/DX, NR
OFF/ON, HI-BLEND OFF/ON or AUTO/MONO to show the
current APR setting. (APR system Is effective for only FM re-
ception.)
APR System Indicators
APR SYSTEM
Hi BLENO AF MOOE STEREO MODE
NLA.
LOCAL AUTO
TX-866 only
NOTE:
@ When MUTE/MODE button ts OFF (MONO), the APR Mode
selection function does not operate, and the STEREO MODE
indicator is forced to “MONO".
@ The RF MODE will indicate LOCAL when sufficient signal
Is received.
Classified Memory Function
The memory can be divided (classifred) for different users or pro-
grams of stations.
NOTE:
There are times when frequencies are left in the machine’s me-
mory from the final testing done prior to shipment. If this is the
case with your TX-866/844, cancel unnecessary preset stations
according to “How to cancel memorized stations” and memorize
desired frequencies.
~ Ti
M@ How to classify stations
With this model. six classes (CLASS A to F) are available and
stations can be memorized tn any class. A total of 40 stations
can be memorized tn classes fram Ato F. Although the same
station can be memorized in different classes, the memory
number for the station will differ depending on the order in which
the station is memorized in the classes. °
Tune in the desired station {see section on “Tuner Reception’).
Press the MEMORY button.
@ The MEMORY indicator will flash for 8 seconds.
Press the desired Classified Memory button (one of buttons A
to F).
@® The station is memorized in the selected class with the me-
mory number which is the smallest of the unoccupied
numbers in the class.
By repeating the operations above, up to 40 stations can be me-
morized. If an attempt is made to memorize 41 stations or more,
“FULL” will be displayed in the Input Selector/Frequency Display,
indicating that no more stations can be memorized.
») OO

B How to cancel memorized stations
Retrieve the class number you want to cancel (see "How to
retrieve memorized stations’) and then press the MUTE/MODE
button while holding down the MEMORY button. Another
Station can be memorized with the memory number which has
been cancelled.
MEMORY MUTE/MODE
L___ ERASE ——_
NM How to retrieve memorized stations
(1) Press the Classified Memory button for the desired class. If
remote control is used, the class next to the present one is re-
trieved when the CLASS button is pressed.
@ The memory number (station) which was being received
before the class is retrieved will be received.
(2) There are several methods to proceed after the above operations
are carried out. Use any of the following methods.
a, Pressing the same Classified Memory button again permits
the next preset memory number (station) to be received.
b. Input the memory number you wish to receive by using the
Number buttons.
@ |f the memory number consists of 2 digits, input two
numbers, immediately one after the other. For instance,
when inputting "15", “15” will not be registered if you
wait more than one second before inputting “5”, resuiting
in only "1" being registered.
@® if anumber other than a number from 1 to 40, or a number
which has not been memorized is input, the number
flashes for 2 seconds and then the number which was
displayed before wilt be displayed.
® ‘f a number between 1 and 4 is pressed, the display and
Station are changed 1 second fater.
c. Press the CLASSIFIED SCAN button
@® Stations memorized in the present class will be scanned
in a order and the corresponding memory number will
flash in the Preset station display at each scan. After the
last memory number of the class is reached, scanning
starts again from the first memory number of the class.
Pressing the CLASSIFIED SCAN button again stops scanning.
d. When the PRESET UP or DOWN button of the remote
controler is pressed, the memory number of the class cur-
rently being received will be incremented or decremented.
Keeping pressing the button increments or decrements
continuously. After the maximum or minimum number is
reached, the next class or one before the present class wil!
be entered.
Tape Recording
(1) Make all connections between the tape deck and the unit as
shown in the System Connections Diagram.
(2) Radio: Press the FM or AM Input Selector button.
Record: Press the PHONO Input Selector button.
CD: Press the CD Input Selector button.
VCR-1/VDP: Press the VCR-1/VDP Input Selector botton.
VCR-2: Press the VCR-2 Input Selector button.
(3) Put the tape deck in the recording mode. The recording can be
monitored through the speakers or headphones as desired. For
TAPE-2, turn on the corresponding Tape Monitor button to hear
the signal that, having been recorded, is returned from the deck
to the TX-866/844. (if the deck has three heads).
(4) Set the proper recording level using the controls on the tape
deck used for recording. Also, during recording and dubbing
operations, never change the positions of any controls (bass,
treble, etc.) on this unit.
Tape-to-Tape Dubbing
D Connect the two tape decks to this unit as shown in the System
Connections diagram.
Load the original tape in tape deck 1 and the blank tape in tape
deck 2.
Press the TAPE-1 Input Selector button.
Put tape deck 1 In the playback mode and tape deck 2 in the
recording mode.
The source signal can be monitored through the speakers or
headphones, when the TAPE-2 MONITOR button its in the OFF
position. if tape deck 2 has three heads, the Just-recorded signal
can be monitored (when the TAPE-2 MONITOR button is in
the ON position). Refer to the tape deck Instruction manuals
for more details.
©) eH ©
Using the Graphic Equalizer
Connect the graphic equalizer to the TAPE-2 jacks on the rear
panel.
if a second tape deck is used, connect it to the tape jacks on
the graphic equalizer.
Press the TAPE-2 MONITOR button.
Follow the graphic equalizer operating instructions.
To record an equalized signal, use tape deck 2 (connected to
the equalizer) for recording.
COX ©
Video Cassette Recorder {or Player) Playback
Connect the VCR to the TX-866/844 as shown in the System
Connections diagram. Note that a playback only video unit has
no video or audio input jacks. Remember to switch the cores-
ponding VCR made switch to MONO when using a monaural
VCR-2. If this is not done, sound will be heard from only one
speaker. If the MONO setting is used with a hi-fi (stereo) VCR,
even stereo sound will be heard in the monaural mode. Then
connect a monitor or TV having a video input jack to the
TX-866/844 video “MONITOR OUT” jack.
(2) Press the VCR-2 Input Selector button.
(3) Switch on the monitor TV, and start playback of the VCR. The
picture will be sent to the monitor TV and sound to the speakers
connected to the TX-866/844.
(4) Refer to the video cassette recorder instruction manual for ad-
ditional information.
Video Disc Player to VCR Dubbing
Video disc programs can be recorded onto a VCR-2.
Load a disc in the video disc player, and a blank tape in the
VCR-2.
Press the VCR-1/VOP Input Selector button.
(3) Begin playback of the video disc player and recording of the
VCR-2.
(4) The VCR-1/VDP to VCR-2 duplication is possible when a
second VCR output are connected to the VCR-1/VDP jacks.
Refer to the video disc player and VCR instruction manuals for
additional information.
Video Disc Player Playback
Connect the video disc player to the TX-866/844 as shown in
the System connections diagram. Then connect a monitor or
TV having a video tnput jack to the TX-866/844 video “MON-
ITOR OUT"jack.
Press the VCR-1/VDP Input Selector button.
3) Switch on the monitor TV, and start playback of the video disc
player. The picture will be sent to the monitor TV and sound
to the speakers connected to the TX-866/844.
Refer to the video disc player instruction manual for additional
information.

Operations For Multiple Room Remote Control
IF A PROBLEM OCCURS, use the TX-844/866's front panel
@® Make all connections as shown tn the system connection controls to verify that the problem is with the remote controller.
diagram. If there is no problem when operating the TX-844/866 directly,
@ Remember thatthe HR-10 can't display the operating status check the batteries in the remote controller first before assuming
of the TX-844/866. We recommend the following that there is a controller malfunciton.
procedure to avoid confusion:
Select desired functions, including speaker selection, at the
TX-844/866 itself.
Start the program from the remote room and adjust volume
accordingly.
Remote program choices are not “locked in” and may be
inadvertently changed by someone adjusting the
TX-844/866. If you experience program Interruptions, check
the receiver itself.
® Non-Onkyo components can be operated by aiming that
device’s remote sensor at the HE-10 or HE-50AC.
Pragrammabie remote controllers, like Onkyo’s RC-AV10 or
RC-AV20, simplify system operation and are generally
recommended.
Trouble shooting guide
NOTES:
@ The source may be changed or recording being done on the
TX- 866/844 may be interrupted when operations are done
in the other room.
@ Some non-ONKYO remote control transmitters cannot be
used for.
If a problem occurs, first operate the unit using the front panel
controls to confirm that it is not due to a malfunction (or worn
out batteries) of the remote control transmitter.
No power. ® Power cord ts disconnected. @® Connect power cord.
@ AC fuse blown.
® Contact Onkyo Service Center.
Power but no sound. ® Tape monitor switch on. @ Switch to off.
® Audio muting switch on. @ Switch to off by remote control transmitter.
® Bad connections.
® Check input leads, speaker leads, pin plugs, etc.
® Amplifier protection circuitry has been |@ Contact Onkyo Service Center.
activated.
Hum, low frequency noise. ® Poor or no input ground. @ Check outer conductor of input plugs.
@ Poor or no phono motor ground. @ Check for proper ground connection.
Howling when the volume ts turned up. | @ Turntable and speakers are too close @® Move them farther apart.
together.
® Replace.
Rough or scratchy sound. High range is | @ Stylus of pick-up is worn.
not clear. @ Stylus tip is dirty. ® Clean.
@ Treble control too high. ® Turn treble contro! down.
@ AM loop antenna is not attached. ® Connect the included AM loop antenna to the AM
antenna terminals.
Buzzing noise on AM (particularly con- | @ Noise from electrical apparatus such as | @ Move AM loop antenna to different position.
spicuous at night or with weak stations). fluorescent lamp. ® Set up outdoor AM antenna.
High pitched noise or buzzing notse on | @ Noise from TV. ® Place the AM loop antenna as far as possible from
AM. the TV.
@ Move unit away from TV set.
AM stations cannot be received.
® Move antenna as far as posstble from the fluores-
cent lamp.
@ Install and FM outdoor antenna as far as possible
from the road.
@® Change the position or direction of the outdoor
antenna.
®@® Noise caused by turning fluorescent
lamp on and off.
® Noise from automobile ignition.
Crackling noise on AM and FM.
® Change to T-shaped antenna.
@ Use antenna which has better directivity and select
a point where the distortion is least.
FM tuned and stereo indicators light but | @ Station is too strong.
@ Multiple reflection of the radio waves
because of tall buildings or mountains.
sound ts distorted and stereo separation
is bad.
FM Signal Strength Indicators and stereo | @ Station is too weak. @ Install an outdoor FM antenna.
indicator flicker and hiss is heard on FM. | @ Stereo FM broadcasts cover only about | ® Change the position or direction of the outdoor
half the distance of an ordinary broad- antenna.
cast.
No station or undesired station is recalled | @ The power cord has been unptugged for] @ The memory contents are lost. Store all stations
when a preset button is pressed. a long time. again.
Front panel controls function but remote | @ No batteries in remote contro! transmit- | @ insert batteries.
control transmitter does not. ter. @ Replace batteries.
@ Batteries have worn out.
The tuning steps by which the tuned frequency changes on each band have been set at the factory to the proper value for the country where
each unit is to be sold. If you use the unit in a country where a different tuning step is required or if the broadcast frequencies in your country
change so that you can not tune in radio stations precisely, contact your authorized Onkyo Service Center.

Specifications
AMPLIFIER SECTION
Power Output:
Total Harmonic Distortion:
IM Distortion:
Damping Factor:
Frequency Response:
RIAA Deviation:
Sensitivity and Impedance:
Phono Overload:
Signal-to-Noise Ratio:
Tone Controis:
Muting
TUNER SECTION
FM:
Tuning Range:
Usable Sensitivity:
50dB Quieting Sensitivity:
Capture Ratio:
image Rejection Ratio:
IF Rejection Ratio:
Signal-to- Noise Ratio:
Alternate Channel Attenuation:
AM Suppression Ratio:
Harmonic Distortion:
Frequency Response:
Stereo Separation:
Muting Level:
AM:
Tuning Range:
Usable Sensitivity:
Image Rejection Ratio:
[F Rejection Ratio:
Signal-to- Noise Ratio:
Harmonic Distortion:
GENERAL
Power Supply:
Dimensions (W x H x D):
Weight:
TX-866
80 watts per channel, min. RMS, at 8 ohms, both
channels driven, from 20Hz to 20kHz, with no
more than 0.04% total harmonic distortion
0.04% at rated power
0.04% at rated power
60 at 8 ohms
20 — 30,000 Hz + 1dB
20 — 20,000 Hz + 0.8dB
Phono: 2.5mV/50 kohms
CD/Tape Play: 150mV/50 kohms
Tape Rec: 150mV/3.5 kohms
120mV RMS at 1kHz, 0.04% THD
Phono: 80dB (at 5mV input, IHF-A)
CD/Tape: 100dB (IHF-A)
Bass: + 10dB at 100Hz
Treble: + 10dB at 10kHz
—Ooo
87.9 - 107.9MHz (200kHz steps)
Mono: 10.8dBf, 1.9nV Stereo: 17.2dBf, 4.0pV
Mono: 17.2dBf, 4.0uV Stereo: 37.2dBf, 40nV
1.5dB
40dB
90dB
Mono: 73dB Stereo: 67dB
55dB
50dB
Mono: 0.15% Stereo: 0.25%
20 — 715,000Hz + 1.5dB
45dB at 1kHz / 30dB at 100 — 10,000Hz
17.2 dBf, 4uV
530 - 1710kHz (10kHz steps)
30LV
40dB
40dB
A0dB
0.7%
AC120V, 60Hz
435 x 137 x 350 mm
17-1/8"x 5-3/8"x 13-3/4"
9.0 kg.,19.8 Ibs
TX-844
60 watts per channe!, min. RMS, at 8 ohms, both
channels driven, from 20Hz to 20kHz, with no
more than 0.08% total harmonic distortion
0.08% at rated power
0.08% at rated power
60 at 8 ohms
20 — 30,000 Hz + 1dB
20 — 20,000 Hz + 0.8dB
Phono: 2.5mV/50 kohms
CD/Tape Play: 150mV/50 kohms
Tape Rec: 150mV/3.5 kahms
120mV RMS at 1kHz, 0.08% THD
Phono: 80dB (at 5mV input, |IHF-A)
CD/Tape: 100dB (!HF-A)}
Bass: + 10dB at 100Hz
Treble: + 10dB at 10kHz
_— oo
87.9 ~ 107.9MHz (200kHz steps)
Mono: 11.2dBf, 2.0uV Stereo: 17.2dBf. 4.0ynV
Mono: 17.2dBf, 4.0uV Stereo: 37.2dBf, 40uV
1.5dB
40dB
90dB
Mono: 72dB_ Stereo: 66dB
55dB
50dB
Mono: 0.15% Stereo: 0.30%
30 - 15,000Hz + 1.5dB
45dB at 1kHz / 30dB at 100 — 10,000Hz
17.2dBf, 4uV
530 — 1710kHz (10kHz steps)
30puV
40dB
40d8
40dB
0.7%
AC120V, 60Hz
435 x 137 x 350 mm
17-1/8" x 5-3/8" x 13-3/4"
9.0 kg., 19.8 Ibs.
Specifications and features are subject to change without notice.

ONKYO CORPORATION
International Division: Onarimon Yusen Bldg., 23-5, Nishi-Shimbashi 3-chome, Minato-ku,
TOKYO 105, JAPAN Tel: [phone] Fax: [phone]
ONKYO U.S.A CORPORATION
200 Williams Drive, Ramsey, N.J. 07446, U.S.A.
Tel: [phone] Fax: [phone]
SN 29341515B 024-12-1K-ASA Printed in Japan El