Specifications; Panel Facilities - Pioneer CT-91a Service Manual

1. SPECIFICATIONS
Systems sce es Meer eee sek re se eee ees 4 track, 2-channel stereo
Heads: -ssscs erst ere r cree er eces Recording and playback head
Laser amorphous playback head/
Hard permalloy recording head combination x 1
Erasing head: (Ferrite head) x 1
MOtors seserrressecerresreerersens DC servo capstan motor x 1
DC reel motor x 1
DC auxiliary motor x 1
Wow & flutlerss ssc reer crest eee ence tence neces 0.022% (WRMS)
+ 0.052% (DIN)
Fast winding time +++ +++ errr r eter eee Approximately 80 seconds
(C-60 tape)
Frequency response (-20 dB recording)
Metal tape corre eee er rece tree ee eeene ee 15 Hz to 23,000 Hz
Chrome tape -:- +++ 15 Hz to 21,000 Hz
Normal tape ssccsssrser essere ee eeceee 15 Hz to 21,000 Hz
Signal-to-noise ratio
DOLBY NR OFF eee eee ey More than 60 dB
Noise reduction effect
DOLBY B-type NR ON -- More than 10 dB (at 5 kHz)
DOLBY C-type NR ON More than 19 dB (at 5 kHz)
Harmonic distortion - -- No more than 0.6% (0 dB)
LINE: 67 mV
(Input impedance: 50 k Q )
(0) ) eee LINE: 316 mV
(Output impedance: 1.4 k Q)
Headphones: 0.8 mW
(Load impedance 8 2 VR Max.)
Subfunctions
3-mode Counter (4-digit electronic counter)
Auto Tape Loose Canceller function
Meter Range Selection (wide/expanded range}
Auto Monitor Function (TAPE/SOURCE auto selection)
Power Eject (OPEN/CLOSE)
Music Search (over + 15 selections)
Tape Return/Return Play
Headphones jack (with volume control)
Bias control
Rec calibration level control
MPX Filter
Auto Space Recording Mute
Auto Tape Selector
Playback/Recording timer start function
Dolby B-type and C-type Noise Reduction Systems
Dolby HX Pro system
FL Level Meter Peak-hold function (15 + 1 segments) eeoeeererereeoerere eee eo
Miscellaneous
Power requirements
U.S., Canadian models -++++++++rsrereereres AC 120V 60 Hz
U.S. militaly, other destination models -+++++++++++++++esere-
~AC 110V/120 — 127V/220V/240V (switchable), 50/60 Hz
Power consumption
U.S., Canadian models «++ ++ -+++++-+- ++ 26W
U.S. militaly, other destination models -++++++++++++r+5+ 28w
Dimensions -----+-+++e+sesee+ 457(W) x 133.5(H) x 372(D) mm
Weight (without package) + +--+ ++ 1er se eeeee cree eer ere eee 10.8 kg
Accessories
Operating instructions
Connecting Cords ----++ssesrere cece esse etter este ester rears
NOTE:
Specifications and design subject to possible modifications without
notice, due to improvements.
2. PANEL FACILITIES
@® POWER switch
Turns the power on and off.
After the power is turned on, the dotted lines in the level meter
flash for approximately 4 seconds until the circuits of the unit have
stabilized. The unit will not operate during this time.
@® Cassette door OPEN/CLOSE button
NOTE:
ff the cassette door is closed while the unit is turned OFF, and the
power is then turned ON, the cassette door may open and close
after pressing oné of the operation buttons. This occurs when the
microprocessor resets the door mechanism to its initial state and
does not indicate any malfunctioning of the unit.
@ COUNTER selectors
RESET:
Resets the counter indication to "0000".
MODE:
Each time this button is pressed, one of the following three modes
is set in sequence.
* Normal tape counter
¢ Time counter (displays the elapsed playback or recording time)
¢ Remaining time counter (displays the remaining time of the
tape).
@ TAPE CAPACITY selector
To indicate the correct time value in the remaining time counter
mode, this selector must be set in accordance with the tape used.
(ae C90 —»= C80L—e C60 —e ae ed
© TAPE RETURN button
This button is used in the tape counter mode to fast forward or
rewind the tape to a point near the counter reading "0000".
© DOLBY NR selectors
ON/OFF:
Used to turn the Dolby NR Systems circuits ON or OFF.
B/C:
With the ON/OFF switch in the ON position, Dolby B-type NR or
C-type NR can be selected with this switch.
@ MPX FILTER switch
Set this switch to ON when recording FM broadcasts with one of
the Dolby NR systems.
® REC LEVEL control
© REC BALANCE control
@ TIMER mode selector
REC:
Set to this position for timer recording.
PLAY:
Set to this position for timer playback.
OFF:
When the timer is not to be used, set the selector to this position.
(Normally leave the selector in this position.)
@ PHONES LEVEL control
Used for adjusting the volume when listening with needphones.
@ PHONES jack
For connection of standard stereo headphones.