in or mo
is app
t expose
shock hazard, do n
ent f
“To prev
To 2
e Explanation of Graphical Symbols
The lightning flash with arrowhead
symbol, within an equilateral triangle,
of uninsulated “dangerous voltage”
within the product's enclosure that
may be of sufficient magnitude to
constitute a risk of electric shock to
The exclamation point within an
equilateral triangle is intended to alert
you to the presence of important
operating and maintenance (servicing)
instructions in the literature accom-
panying the appliance.
is intended to alert you to the presence
1 Read Instructions — All the safety and operating
instructions should be read before the appliance is operated.
= Retain instructions — The safety and operating
instructions should be retained for future reference.
3 Heed Warnings — All warnings on the appliance and in
the operating instructions should be adhered to.
4 Follow Instructions — All operating and other instruc-
‘tions should be followed.
4 Water and Moisture — The appliance should not be
used near water — for example, near a bathtub, washbowl!,
© kitchen sink, laundry tub, in a wet basement, or near
swimming pool, etc.
© Carts and Stands — The appliance should be used only
with a cart or stand that is recommended by the manufac-
/ Wall or Ceiling Mounting — The appliance shouid be
mounted to a wall or ceiling only as recommended by the
© 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 installe
tion, such as a bookcase or cabinet that may impede the flov
of air through the ventilation openings.
9 Heat — The appliance should be situated away from
heat sources such as radiators, stoves, or other appliances
that produce heat.
d O Power Sources — The appliance should be connect-
ed to a power supply only of the type described in the
operating instructions or as marked on the appliance.
q 1 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
“1 — Cleaning — The appliance should be cleaned only
as recommended by the manufacturer.
1 3 Nonusa Periods — The power cord of the appliance
should be unplugged from the outlet when left unused for a
long period of time.
d Zl Object and Liquid Entry — Care should be taken
so that objects do not fall into and liquids. not spilled into
the inside of the appliance,
1 => Damage Requiring Service — The appliance should
be serviced by qualified service personnel when:
A. The power-supply cord or the plug has been damaged;
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 cabinet damag-
11 С Servicing — The user should not attempt to service
the appliance beyond those means described in the operat-
ing instructions. All other servicing should be referred to
qualified service personnel.
The K-220 is a sophisticated stereo cassette deck. To en-
sure proper operation for the best possible performance,
please read this manual carefully.
Choose the installation of your K-220 carefully. Avoid
placing it in direct sunlight or close to a source of heat.
Also avoid locations subject to vibration and excessive
dust, heat, cold or moisture. Keep it away from such
sources of hum as transformers or motors.
Do not open the cabinet as this may result in damage to
the deck or electrical shock. If a foreign object should get
into the deck, contact your local dealer.
When removing the power piug from the wall outlet, al-
ways pull directly on the plug; never yank the cord.
Do not use forece when operating switches and knobs.
When moving the deck be sure to first pull out the power
plug and remove all cords connecting the deck to other
Do not attempt to clean the K-220 with chemical solvents
as this may damage the finish. Use a clean, dry cloth.
Never allow metallic items {e.g. screwdrivers, tools, etc.) to
come near the record/playback head assembly. Doing so
may not only scratch or damage the head's mirror-smooth
finish, it may change the magnetic characteristics of the
heads, causing a deterioration in reproduction perfor-
mance quality.
Although the record/playback head used in the K-220 is a
high quality permalloy laminate head with outstanding
reproduction characteristics, it can become dirty through
the use of old tapes of from dust accumulation over time.
This can have a serious effect on reproduction quality.
Clean the heads regularly with one of the commonly avail-
able head cleaners or with cleaning solutions as explained
later in this manual.
Be sure to read the “Troubleshooting” section of this
manual for advice on common operating errors before
concluding that your K-220 is faulty.
Keep this manual in a safe place for future reference.
Be sure to connect the left (L) and right {R) channels consistently.
Nm — ©
| Sots || Ain aio |
or K-220 rear panel | М (7
Um TES |
—— 1. Open the cassette compartment cover by pressing
Connect to the Eject button,
Deck sid Amplifier side an AC power outlet 2. The side of the tape you wish to record or play-
eck side mp LUST SI back should be facing the front. Insert the cassette
LINE IN/REC-—#—#REC OUT hth d d no
LINE OUT/ with the exposed tape edge down, and fit it into
PLAYBACK PLAY —" TAPE PB the chamber.
| ‚ 3. Push the cassette cover closed until you hear an
Verify L and R, then plug in audible click
firmly. 4. To unload the cassette, press the Eject button.
RECORDING * Remember to keep the cassette compartment
cover closed when not using the deck to protect
he head di
e REAR PANEL CONNECTIONS a nr ne eel om exon 19
ест Connect the power cord to an AC outlet or to the AC outlet 3 -
E. provided on the rear panel of your receiver, integrated The exposed edge of the tape should
TER, > CL amplifier, or control amplifier. be facing down when inserted into
MBA the cassette compartment for
en > Make sure that power to both the K-220 and your amplifier either playback @ recording @
CIO / \ (receiver, etc.) is turned off before making connections.
М SS The White plug on the paired connecting cables corresponds
to the Left channel and the Red plug corresponds to the
Integrated amplifier, Right channel. The Line Out (Play jacks on the K-220
preamplifier or recejver. should be connected to the Tape PB (Playback Input) jacks
on your amplifier, and the Line In (Rec) jacks on the K-220
should be connected to the Rec Out (Rec Output) jacks on
*Please refer to the amplifier instruction your amplifier, Make sure that the left and right channel
manual for more detailed instructions connections are properly made, and that the plugs are
on connecting the deck to your system, insterted firmly. \_
TNVO-MO FCO pComauter Controles |eacsport
5 [3
OU Power Switch (POWER)
This | is a ‘’push-on, push-off"” type power switch.
© Eject Button (EJECT)
To load a cassette tape, press the Eject button and the
cassette compartment cover will open. Keep cover closed
when the deck is not in use to protect heads and
mechanism from dust, etc,
€ Cassette Compartment
E) Tape Counter/Reset Button (TAPE COUNTER)
Before recording a tape, ¡it's a good idea to press the Reset
Button to set the tape counter to “000”. This allows you
to keep track of where on the tape individual selections
begin and end, so that setting the tape counter to “000”
again before playback will let you use it as a guide in
locating selections on the tape during playback.
Gh Rewind /Play/ Fast Forward /Stop (Tape Travel
Operation Control Panel)
REW Press the << ” section of the contro panel to
rewind the tape.
PLAY Press the “PLAY” section of the control panel
for playback. It is also necessary to use this
control to engage the record mode, To begin
recording, it is necessary to engage the Play mode
white in Rec Standby,
FFWD Press the ” > “ section of the control panel to
fast forward the tape,
STOP Press the “STOP” section of the control panel to
stop the tape while in any mode.
Rewind >x=>] Fast Forward
Press the symbol lightly
Selection 1 ... “000”
Selection Z ... “065”
Selection 3 , .. "123"
Selection 4 ... “170”
@ Rec Indicator (REC)
When the Rec/Pause button is pressed, the Rec stand by
mode will be engaged, and this indicator will light.
It will flicker during the Auto Rec Mute mode.
() Dolby NR indicators (DOLBY NR)
The corresponding Dolby NR indicators will light up
when the Dolby NR switch is turned on, and either Dolby
B or C type noise reduction is selected.
The deck will stop automatically when the tape
reaches the end of a side during playback, record, fast
forward or rewind,
Pressing the control panel in between the indicated
sections instead of directly on them may give you a
mode other than the one you want.
&) Rec/Pause Button (REC/PAUSE)
Pressing this button engages the Rec Standby mode, and a
red indicator “REC” will light. While in this mode, the
level meters will function, allowing you to monitor the
recording signal level of your program source and set the
proper recording level before beginning to record. (Please
refer to the “Setting the Recording Level” section of this
manual.) To initiate recording from the Rec Standby
mode, press the Play button. Pressing the Rec/Pause
button during actual recording engages the Pause mode,
and the Play button will be automatically released. To
begin recording again from the Pause mode, press the Play
Lt r Light
9 Standby |
(Adjust level, balance)
O Rec Mute Button (MUTE)
During Recording: When the MUTE button is pressed at
any time during-recording, a 4-second blank interval is
automatically recorded on the tape. Then, the Rec Pause
mode is engaged automatically. (Auto Rec Mute
In order to record a biank interval longer than 4 seconds,
press the MUTE button and hoid it in for the desired
length of time, After the button is released, the 4-second
blank interval will also be recorded automatically, after
which the Rec Pause mode is engaged automatically. To
create a blank interval on the tape during continuous
recording, press the Play button during rec mute
@ Tape Selector (TAPE)
Press the appropriate button for the type of tape being
used—Normal (INORM), Chrome (I1/CrO4), or Metal
(IV/METALI. The K-220 will adjust the proper bias, level,
and equalization settings for the type of tape being used.
(Please refer to the “Cassette Tapes” section of this
* This deck is not suited for use with Ferrichrome
(FeCr) tapes.
DP Peak Level Meters (LEVEL)
Indicates the peak of the signal level during recording and
playback over a range from —10dB to +6dB.
® Dolby NR Switch (DOLBY NR)
Dolby noise reduction is an extremely effective method
of reducing background hiss on tapes. The K-220 incorpo-
rates both Dolby B NR and the newer Dolby C NR
system. Dolby C NR is approximately twice as effective as
Dolby B NR, providing new levels of noise-free perfor-
mance. Switch the Dolby NR system on with the button
on the left, then select Dolby B or C NR with the button
on the right,
Tapes recorded with Dolby B NR should be played back
with Dolby B NR en, and tapes recorded with Dolby €
NR should be played back with Dolby C NR an. Tapes
not Dolby NR-encoded should be played back with-Doiby
NR off.
OF ‘à ane The Doiby NR switch 1S
ON a CTYPE set to the same position
] on record and play.
oO ||
Dolby and the double D mark are trademarks of
Dolby Laboratories Licensing Corp. Dolby noise
reduction system manufactured under license from
Dolby Laboratories Licensing Corp.
O Auto Mode Switch (AUTO MODE)
Repeat: This will initiate repeat playback for one entire
side of the cassette tape. After the tape has been
reproduced, it will be rewound to the beginning, and it
will be played back again. This function will stop after
16 consecutive operations.
Timer Play: By using a separately available timer, this
function permits timer activated playback, so you can
wake-up to your favorite music, etc. {See page 7.)
Timer Rec: By using a separately available timer, this
function allows you to carry out unattended recording.
(See page 7.) |
* Turn the corresponding switches off when not using
the repeat playback feature or the timer feature.
Especially for the TIMER REC position, the unit will
stay in the recording mode as long as the power is on,
and therefore can accidentally erase the prerecorded
contents of the tape.
& Headphone Jack (PHONES)
Connect a set of headphones here for monitoring
recording or playback.
@ Recording Level Controls (REC LEVEL)
These controls are used to adjust the input leve! of the
signal coming from the rear panel input jacks for
recording, and the adjustable signal level is displayed on
the Level meters. (Please refer to the “Setting the Record-
ing Level” section of this manual for an explanation of
how to set proper recording levels.)
* Auto Source Change
When tape playback has finished and the auto stop
function has cancelled the play mode, the LINE IN
signal (if the tuner is connected to the LINE IN
inputs, then the tuner output signal) will automati-
cally be switched to, Signal level can then be adjusted
with the REC Volume control.
In order to make recordings with the best possible signal-
to-noise ratio, it is important to set the recording level at
the highest level possible without introducing distortion,
Push the Rec/Pause button to engage the rec standby
mode, and play a section of the program to be recorded.
Watch the level meters and adjust the recording level so
that the average meter reading is between —5dB and
+3dB, with occasional peaks no higher than +8dB. Adjust
the level balance as necessary. Now you are ready to
begin recording.
Set so peaks reach +6dB
occasionally. Exceeding
this point can cause
In normal cases, set
so the maximum
value is in this range.
[Г ет ЕЕ НЯ Пион ин Troy
de — CO IC DOS 1 D I 3 1 & | =
Use the Rec Level
controls to set the
proper level.
Prior To Recording:
Make sure that all power cord connections and all con-
nections between components are properly made,
Check that the AUTO MODE switch is off, then turn
on the Power swtich,
Open the cassette compartment cover by pressing the
Eject button.
Load a cassette tape and briefly fast forward the tape
to get past the leader tape on the beginning of the
Leader tape
Cassette: shell
Select the proper Tape Selector setting for the type of
tape being used — Normal (1/NORM), Chrome
(I/CrO2), or Metal (1V /METAL).
For recording to be made with Dolby NR, turn the
Dolby NR switch on, and select either Dolby B or C.
Press the Rec/Pause button to engage the Rec Standby
Run a sample of the program source to be recorded
through the deck so that a proper recording level can
be set using the Rec Level controls and the Level
meters. (Please refer to the previous instructions regard-
ing level setting.)
Press the reset button to reset the tape counter to the
“000” position to reference the position of individual
selections on the tape. The tape counter may thus be
used as a program guide during later playback,
Starting To Record: :
When the “Play” section of the control panel is pressed,
the deck will begin recording.
You can monitor the recording by connecting head-
phones or through speakers connected to the amplifier.
When MUTE button is pressed during recording, a
4-second blank interval is automatically recorded on the
tape, after which the rec pause mode is engaged,
(Please refer to page 5 ” €) Rec Mute Button”)
If you wish to suspend recording temporarily, pressing
the Rec/Pause button engages the Rec Standby mode
which serves the same function as a Pause button found
on other decks, To begin recording again, press the
“Play” section of the contro panel.
. When you have finished recording, press the “Stop”
section of the control panel,
Prior to Playback:
Make sure that all connections between components
and all power cord connections are made properly and
Make sure that the AUTO MODE switch is set to the
OFF position,
Turn the Power switch on. :
Open the cassette compartment cover by pressing the
Eject button.
Load a recorded cassette tape.
Select the proper Tape Selector setting for the type of
tape being used — Normal (I/NORM), Chrome
(I[/CrO»), or Metal (V/METAL).
For tapes recorded with Dolby NR, make sure that the
Dolby NR switch is turned on, and select either Dolby
B or C as appropriate.
Set the auto mode switch to the REPEAT FULL
position when carrying out repeat playback.
Beginning Playback:
. When the “PLAY” section of the control panel is
pressed, the Play mode will be engaged.
Adjust the Balance, Volume, and Tone controls of
your amplifier to the desired settings.
Press the “STOP” section of the control panel ta end
When using the Timer Rec/Play switch in combination
with a conventional audio timer such as the Yamaha DT-2,
it is possible to make recordings and initiate playback at
‘any time automatically by presetting the deck in advance.
e Timer Recording:
1. Refer to the Connection Diagram and make sure that
all power cord connections between the timer and
amplifier are properly made, No change in any of the
other connections between deck and amplifier, etc,, is
necessary. |
2. After turning on the power to each component, select
the station on your FM tuner which you want to
record and turn down the volume on your amplifier.
This will have no effect on the recording signal level.
Remember to set the proper recording level for taping
from the tuner (as explained earlier in this manual)
prior to setting the deck for timer recording.
3. Following the instructions given in the “Prior To
Recording” section of this manual, put the K-220 into
the Rec mode.
4, Set the AUTO MODE switch to the TIMER REC
5. Set the timer to the desired times. It is advisable to set
the timer to begin recording slightly before the actual
recording time, and to end slightly before the actual
recording time, so that you leave some room for later
6. The timer will send power to the amplifier, tuner and
deck at the preset time, turning all the components cn
and initiating the recording mode,
IT the tape cannot be ejected after time recording, turn the
AUTO MODE switch off and the K-220's power switch on;
the tape can then be ejected,
e Connection for timer = nan mere
recording/playback =
{ Set the recording
== level in advance, |
Make sure all 4
Power switches <
are turned on.
Ed Gr e
No change in con-
nections between
deck and amp.
grito J
The power cord of both
deck and tuner should be
connected to the amplifier's |
… rear panel AC outlet.
/ Timer
The power cord of the amplifier
should be connected to the AC
outlet on the audio timer.
Timer Playback: |
All connections are the same as for timer recording.
Following the instructions given in the “Prior To Play-
back” section of this manual, put the K-220 into the
Play mode,
. Turnon the amplifier and adjust the Balance, Volume
and Tone controls.
. Set the input mode selector of your amplifier to the
Tape mode,
. Set the timer to shut off at the time you wish to end
Set the AUTO MODE switch on the K-220 to the
TIMER PLAY position,
At the preset times, the timer with turn power on to the
amplifier and tape deck and begin playback, It will shut
power off, at the preset time as well, ending playback.
There are many different types of cassette tapes sold on
the market; however, they all conform to standard specifi-
cations so that any brand may be used with the K-220.
e Classification of Cassette Tapes By Recording Time
Cassette tapes are available in a number of forms according
to the amount of time in minutes it takes to record or
playback both sides of the tape.
Record/Playback Time
Tvne Length of Tape
ve One way Two way (m)
(Min.) (Min.)
C-45 23 45 68
(C-46) (46)
C-60 30 60 90
C-90 45 90 135
Yamaha suggests that you not use C-120 cassettes since
the extreme thinness of the tape in these cassettes
makes them susceptible to mechanical and electrical
e Classification of Cassette Tapes by Formulation
Cassette tapes are available in four basic types depending
on their formulation, or type of magnetic material and
manufacturing process. These four types are commonly
known as Normal: Type I (LH), Chrome: Type II (CrO5),
Ferrichrome (FeCr}, and Metal: Type IV (Metal), and they
each require specific bias, level, and equalization settings
for optimum performance. The K-220 provides a tape type
selector which gives you the proper bias, level, and equaliza-
tion settings according to which type you have selected.
* The K-220 does not have the required setting for
Ferrichrome {FeCr) tape, since this tape formulation
is not widely used, Should you use a Ferrichrome tape,
it should be recorded and played back at the Normal
(LH) settings. This will result in an unnatural high fre-
quency emphasis. But this effect may be compensated
for somewhat by adjusting the tone controls of your
All cassette tapes are provided with erasure protection
holes to prevent recorded tapes from being accidentally
erased. There is a small tab covering the hole on each
cassette, and it should be broken off with a screwdriver
after recording a tape. Without this tab covering the hole,
it is impossible to record on that tape again; thus, you can
keep any recorded tape for as long as you wish without
fear of accidental erasure. Should you wish to use a cassette
tape protected. in this way for later recording, simply
covering the hole with scotch tape will permit erasure and
Break off tab with
scotch tape
Slack in the tape inside of the cassette shell can be cor-
rected by simply inserting a pencil into one of the spools
and winding it until all the slack is taken up,
Cassette shell
After putting a cassette back into its case, store in a loca-
tion away from exposure to direct sunlight, ‘humidity,
nigh temperatures, and magnetic fields (away from televi-
sion sets, speakers, etc.). High temperatures and humidity
will damage the tape itself, while exposure to magnetic
fields may cause a loss of recorded material.
— >
After using your K-220 for a certain length of time,
it is possible that the sound of your tapes may deter-
lorate with fading, vibration, or noise as a noticeable
result. This is caused by an accumulation of dirt or
dust on the heads, capstan, or pinch roller, and
magnetization of the heads. It is advisable to periodi-
cally clean and demagnetize the heads and to clean
the capstan and pinch roller. Use a commonly avail-
able cotton swab and head cleaning solution to do
this, or use a special head cleaning tape. Head demag-
netizers are also commonly available.
* When cleaning the heads, be careful not to apply
unnecessary pressure. When demagnetizing the
heads, be sure to follow the instructions of the
head demagnetizer carefully.
For better access to the head assembly, the cassette
compartment cover is detachable by pulling
upward on it after it has been opened, To re-attach
it, reverse the same procedure,
Rec/PB head UY
Erase head ©
Pinch roller
With cassette tapes, the most noticeable form of noise is
high-frequency hiss. To reduce this hiss noise, the K-220
has been equipped with a newiy developed Dolby C noise
reduction system in addition to its conventional Dolby B
NR. Either type of noise reduction may be selected with
the switch provided,
Dolby B NR has a noise-reduction effect of about 10dB in
the high-frequency range. The corresponding figure with
Dolby C NR is about 20 dB, but this is over the entire
rnage where the human ear is most sensitive to noise
(2 kHz to 8 kHz). Dolby C NR aiso improves the tape's
MOL. (maximum output level).
Dalby C NR has two new circuits: a spectral skewing cir-
cuit and an anti-saturation network. By improving the
saturation level of the tape it is possible to prevent high-
frequency loss and encode/decode error, etc., improve
dynamic range and signal-to-noise ratio, and make it easier
о Frequency response С Туре
~~ (0dB) в TD
(—10d8) ss,
7 (—20d8) ~~
= —40
— Dolby off
60 Noise reduction effect B Type
`` 2048
—80 C Type
20 100 500 1K 2K 5K 10K 20K
Frequency (Hz)
to set the recording level. With Dolby C NR, it is possible
to achieve the same noise reduction effect at both high
and low signal levels and to set the recording level at a
point where side effects such as “breathing” are eliminated.
Also, by expanding the operating frequency range to two
octaves more than that of Dolby 8 NR, overall noise
balance is obtained and the system also becomes effective
against high frequencies from the power supply.
The graph shows the frequency response and the noise-
reduction effect of recording and playback with Dalby B
NR and Dojby C NR. The noise reduction effect of Dolby
C NR is larger — approximately 20 dB.
Dolby noise reduction is a 2-part process that acts both on
recording and playback; be sure that the Dolby NR switch
Is set to the same position on record and play.
* Noise in the source material can not be reduced with
the Dolby NR system,
Type a 4-track , 2-channel| record-
ing and playback stereo
cassette tape deck
Heads |
Rec/Play head ........ Hard permailoy
Erase head, ....... oe. Ferrite
Capstan .....oesrreo DC servo motor
Reel .............. Flat torque DC motor
Wow and Flutter . . . . .. .. No more than £0.15% W.peak
0.08% W.RMS
Fast winding time . ...... Approx. 95 seconds (C-60)
Frequency response
Normal tape (—20dB)
Chrome tape (—20dB) ....
Metal tape (—20dB)
Signal to Noise ratio
40 to 16,000 Hz +3dB
40 to 16,000 Hz +3dB
.. .. 40 to 16,000 Hz £3dB
Dolby off . .......... 583 dB
Dolby Ban . .... oca. 66 dB
Dolby Con .......... 74 dB
Harmonic distortion . . . . . . Less than 1%
Input Sensitivity/ Impedance
Line . ..orceocr ra. 45 mV/50 k-ohms
Output Level/Load Impedance
Line .............. 360 mV/47 k-ohms
Headphones . , . ....... 40 mV/8 ohms
Powersupply .......... AC120V, 60Hz
Power consumption. ...... 1DW
Dimensions (WxHxD). ... 435x112 x 225 mm
(17-1/8"" x 4-3/8" x
aaa ae ene 4.0 kg (8 lbs 13 oz)
Specifications subject to change without notice.
Before assuming that your amplifier is faulty, check the following troubleshooting list which details the corrective action
you can take yourself without having to call a service engineer. If you have any doubts or questions, get in touch with your
® Tape doesn't move (in recording and playback).
nearest Yamaha dealer.
Power plug not properly piugged in.
Check connection, and reinsert plug properly.
End of tape.
Replace with new cassette tape.
e [ape stops in the middle of recording, or playback.
Slack tape, or tape spillage caught around capstan.
Remove tape.
e Falls to record.
Protective tab broken off,
Cover the hole remaining after removal of tab with scotch
REC LEVEL control turned down.
Properly re-adjust REC level.
® The recorded sounds are distorted.
Too high REC level,
Properly re-adjust REC level,
Tape worn,
Replace with new cassette tape.
e Excessive noise,
e Sounas become faint and sometimes inaudible,
Tape worn.
Replace with new cassette tape.
Connection cord improperly inserted.
Check connection, and reinsert plug properly.
Head is magnetized.
Demagnetize head with head demagnetizer.
Head js dirty,
Wipe off dust and dirt with commonly available cotton
swab dipped into head cleaning liquid.
® Excessive Wow (Wavering of the sound).
Dirty capstan, pinch roller, etc.
Wipe off dust and dirt with commonly available cotton
swab dipped into head cleaning liquid.
Tape is unevenly wound,
Rewind tape using F. FWD button, or REW button.
® Playback sounds are poorly balanced.
Dolby NR switch not properly set.
Dolby B-encoded tapes: play back with Dolby Bon,
Dolby C-encoded tapes: play back with Dolby Con.
Others: Dolby off.
SINCE 1887
BWgG.B Printed in Japan E
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