Tascam Portastudio 414mkII Owners Manual

35
Features and ControlsCare and Maintenance
38. REMOTE PUNCH IN/OUT jack (on the
front panel):For connection to an optional
RC-30P remote footswitch.
39. RECORD FUNCTION switches 1-4:These
switches put the respective tracks into Record
Ready. Recording starts when RECORD is
pressed together with PLAY.
In the center position (SAFE) no recording
takes place.
NOTE
Dont operate the RECORD FUNCTION
switches to punch in and out. Otherwise,
clicks will remain on tape.
The RECORD FUNCTION switches also select...

36
Care and MaintenanceHow the dbx Works
Cleaning the Pinch Roller
Clean the pinch roller at least once each day the deck
is used. Use a good rubber cleaner.
1. Clean the pinch roller with a cotton swab
moistened with rubber cleaner, until there is no
visible residue on the pinch roller.
2. Using a clean cotton swab, wipe off all excess
rubber cleaner from the pinch roller. Make certain
that there is no foreign matter remaining on the
pinch roller.
Cleaning the Capstan Shaft
After cleaning the pinch...

38
37
SpecificationsMECHANICAL CHARACTERISTICS
Tape:Compact Cassette (C-60 to 90), 
High-Bias (CrO2)
Track Format:4-track/4-channel
Head Configuration:
4-channel record/play (permalloy) x 1
4-channel erase (ferrite) x 1
Motor:DC servo motor x 1
Tape Speed:9.5 cm/sec. (3-3/4 ips) 
Pitch Control:± 10 % (approx.)
Wow and Flutter:0.2% WRMS or less
Fast Winding Time:115 sec. (approx.) with C-60
Dimensions (W x H x D)367 x 100 x 247 mm
(14-7/16 x 3-15/16 x 9-3/4)
Weight:2.1 kg (4-10/16 lbs.)
ELECTRICAL...

39
40
Block Diagram
LINE OUT
(-10dBV) L
R
MONITOR(-10dBV)
(-10dBV) EFFECT 1 SEND
EFFECT 2 SEND
/TAPE CUE OUT
ATTPHONES
(60mW+60mW)
MONITOR OUT
(-10dBV) L/R
EFFECT 1
L
SAFE
SAFE
SAFE
SAFE1
R
2
LTRK1
TRK2EFFECTF 2
/TAPE CUEL
R
LED METER 3
R
4TRK3
TRK4
RECORD FUNCTION
4TRK 4CH R/P AMP   DBX TYPE 2 NRTRK1 TRK2 TRK3 TRK4
TAPE1
TAPE2
TAPE3
TAPE4
DBX UNIT
REC 1
REC 2
REC 3
REC 4
SYNC
DBXDBX
SYNC
ON
OFF
PAN
L
R
EFFECT 1 INPUT
FADER
TRIMINPUT
MIC/LINE
GUITAR IN
TAPE (-50 to -10dBV)MIC/LINE 1
MIC/LINE 2
(-50 to...

41
Level Diagram
1210
93
7
8
4
5 6
TRK 2
TRK 3
TRK 4 TRK 1
REPRO
EQ AMP
REC/REPRO
HEAD
REC
REPRO
REC
EQ AMP
BIAS
ADJ.
ERASE
HEADTRAP
BIAS
AMPREC
MUTEREC
LEVEL
85kHz OSCENC OUTIN
DEC OUT
PLAY
MUTE dbx NR REPRO
LEVEL EQLPF
REC IN
TAPE OUT
REC IN
TAPE OUT
REC IN
TAPE OUT
REC IN
TAPE OUT
5
( dBV )
0 dBV = 1.0 Vrms
+10
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
(–21) (–18)
(–79)
(315Hz 160nWb/m)
REPRO
HEAD
1
34
2
TAPE OUT
(–10)
(–18)
(–21)
(–28)
(–38)REC HEAD
6
78
9
10
REC IN
+10dB
–10dB
0 dBV = 1.0 Vrms CH1 –...

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