Tascam Computer Monitor 122MKIII User Manual

122mkIII  
Technical Documentation  
PRODUCT OVERVIEW  
When only the best will do, call on TASCAM's  
122mkIII. The 122mkIII is the de-facto  
standard for cassette mastering and playback  
in studios, broadcast, and live applications,  
and with good reason. Few products receive  
this much attention to detail during every  
aspect of the production. The advanced  
direct drive motor, Cobalt Amorphous heads,  
built in test tones and front panel bias and  
gear/clutch coupled record level controls  
combine to make the 122mkIII the industry  
standard recorder that professionals depend on.  
• Three Head Design  
• Precision VU Meters with Peak LEDs  
• Cobalt Amorphous Record and Play Heads  
• Advanced FG Servo Direct Drive Capstan Motor  
• Gear/Clutch Coupled Input Level Controls  
• Dolby B and C with HX Pro Headroom Extension  
• ±12% Pitch Control with Clear On/Off Switch  
Two Locate Points and Return To Zero Functions  
• Headphone Output with Level Control  
• Auto-Input Monitor Selector  
• Front Panel Line Inputs  
• Convenient Front Panel BIAS Calibration Controls  
• Built-in Tone Oscillators  
• Parallel Control Port  
• Fader Start Function  
• MPX Filter  
• Balanced XLR and Unbalanced RCA Analog I/O  
• Optional RC-134 Remote Control  
APPLICATIONS  
SPECIFICATIONS  
The 122mkIII is designed to offer convenience and reliability to  
those who need it all when working in demanding environments.  
If your facility has a need for high quality recording to cassette,  
there is nothing better than the 122mkIII.  
Performance Specifications:  
Track System:  
Heads:  
Type of Tape:  
Tape Speed:  
Pitch Control:  
Motors:  
4 track, 2 channel stereo  
(1) Erase, (1) Record, (1) Reproduce  
Cassette C-60, C-90  
1 7/8 ips, 4.76 cm/sec  
Approx ±12%  
Recording Studio Mixdown Deck  
1 FG DC servo direct-drive capstan motor  
1 DC reel motor  
Cassettes produced on the 122mkIII will absolutely be reference  
quality. The advanced FG servo direct drive capstan motor provides  
very stable recordings, with almost no wow and flutter effects. The  
three head design allows the user to listen to the recording from  
tape. You won't have to listen to the tape in another pass to make  
sure the tape didn't oversaturate. The built in tone generators and  
front panel bias controls make adjusting the machine to suit the  
specific tape a breeze.  
1 DC ancillary motor  
Frequency Response:  
25Hz-20kHz ±3dB Metal  
25Hz-19kHz ±3dB CrO2  
25Hz-17kHz ±3dB Normal  
Total Harmonic Distortion: <1% (1kHz, 160nWb/m)  
Signal to Noise Ratio:  
>80dB Dolby C, 1kHz, 3% THD wtd  
>70dB Dolby B, 5kHz, 3% THD wtd  
>60dB Dolby off  
Wow and Flutter:  
<0.04% (W RMS)  
±0.065 peak (DIN/IEC/ANSI wtd)  
150kHz  
-10dBu, 20kOhm  
+4dBu, 600 Ohm, balanced  
-10dBu, 100 Ohm  
+4dBu, 600 Ohm, balanced  
100mW + 100mW, 8 Ohm  
Live Theater  
Bias/Erase Frequency:  
Input RCA & 1/4":  
Input XLR:  
Line Output RCA:  
Line Output XLR:  
Headphone Output:  
Sound quality is important, but in live productions, there is no take  
two. Everything has to work right the first time. TASCAM's  
legendary reputation didn't develop overnight; it was the result of  
consistent delivery of robust products that never let the user down.  
Broadcast Applications - Radio Studios  
Let's face it, we aren't always polite when we press PLAY. Radio  
stations work 24 hours a day. Three seconds of dead air can cost  
you a substantial listener base, with ten seconds losing almost all  
of it. The 122mkIII is designed to withstand the beating given by  
engineers under pressure. Solid controls with status LEDs offer  
immediate intuitive readout of exactly what is going on. Plus, the  
parallel in control enables the user to directly interface the  
122mkIII with broadcast consoles for event starts or "recording"  
warning lights outside the studio.  
General Specifications:  
Power Requirements:  
120V AC, 60Hz (US/Canada Model)  
230V AC, 50Hz (Europe Model)  
240V AC, 50Hz (Australia Model)  
23W  
482 x 132 x 356 mm  
19" x 5 1/4" x 14"  
Power Consumption:  
Dimensions:  
Weight:  
Optional Accessories:  
8.4Kg, 18.5 lbs.  
Wired Remote (RC-134)  
7733 Telegraph Road  
Montebello, CA 90640  
(323) 726-0303  
Page 1 of 3  
122mkIII_TECHDOC.pdf  
032500  
All features and specifications are subject to change without notice. Contact your local TASCAM representative for the latest information.  
 
122mkIII Technical Documentation  
FRONT AND BACK PANEL  
OPTIONAL REMOTE (RC-134)  
PARALLEL I/O  
Pin  
1
2
Signal  
PLAY In  
FFWD In  
Control I/O Legend  
12  
10  
8
6
4
2
13  
11  
9
7
5
3
1
3
REW In  
4
PAUSE In  
5
STOP In  
6
7
8
9
REC In  
25  
23  
21  
19  
17  
15  
NOT USED  
NOT USED  
TAPE DIRECTION Tally  
NOT USED  
PLAY Tally  
FF Tally  
REW Tally  
PAUSE Tally  
STOP Tally  
REC Tally  
NOT USED  
NOT USED  
REEL PULSE  
NOT USED  
RTZ In  
FADER START In  
NOT USED  
GROUND  
24  
22  
20  
18  
16  
14  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
Parallel Control Notes:  
All command controls are labeled as "in" on  
the chart at left. The commands are active  
when brought to ground for more than 50  
milliseconds or longer.  
FADER START pin (22) operates as a latched  
function. Playback begins when the pin is  
brought to ground for more than 50 msec,  
and stops when the ground is released for  
more than 50 msec.  
Tally outputs indicates the corresponding  
transport function when the pin is brought  
to ground.  
+5V (Max 50mA)  
7733 Telegraph Road  
Montebello, CA 90640  
(323) 726-0303  
Page 3 of 3  
122mkIII_TECHDOC.pdf  
032500  
All features and specifications are subject to change without notice. Contact your local TASCAM representative for the latest information.  
 

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