Tascam DA-30 - 4. Electrical Adjustments; 4-1. Adjustment of the Servo System

4. ELECTRICAL ADJUSTMENTS
GARB
(€
*Measuring
conditions
K
MERE
1. Environment 5
There
should
be
no
draft.
-
SUR
RMA
MO
§
~35T
Temperature: 5 to 35°C ME 30 ~90%
Humidity: 30 to 90% 835.3
2.
Supply
voltage
2.
BRSE
HO
12.5%
2 :
eee
One
rave
3.
MBE
$0(60lz)
+
1%
3. Line frequency
50 (60) Hz 1%
4. Ambient illumination and noise
400 lux or more, 40 phons or less
*Definition
1. OdBV is equal to 1.0 V.
2. The output impedance is 10 kilohm unless otherwise
noted.
3. The reference playback output refers to a LINE OUT-
PUT of 2.0 0.5 V when PGM NO. [1] (1 kH, 0 dBV)
of the test tape TY-7551 ‘is played back.
4. The reference recording input/output refers to a LINE
( OUTPUT of 2.0 +0.5 V immediately before the OVER
of the evel meter: lights with the INPUT LEVEL
volume adjusted when the test tape TY-30B is loaded
and the unit'is set to the recording monitor mode
(the REC.button is pressed) with a signal level-of 2.0 V
(+6 dBV) being input from the LINE IN.
4-1. Adjustment of the Servo System
*PCB to be adjusted: Digital PCB (Fig. 4-1)
(@
RF UNIT
DIGITAL PCB
Fig. 4-1 Adjustment of the servo i and test
point locations
—ERABECTFAR KL > bit .
4. RRRMRBLRS 400luxELE, 40:k- ~ELF
KER
1. OdBY~1.0¥ Eva.
2.
waty
YE-S
YAUWEIMORVED
10K
b+.
3.
EMM
DRM
LIL,
72
FAT,
TY-1551
PCN
WO.
F
1(1KH2.
0480)
eREL,
LANES
ouTPUT
162.0
+0.
NORGE
S.
wb
4.
MBMIBAMDRMLE,
2K
Lg
F-7
W508
€#
MH
LREC
=H
—
(RECHT
YORT)
RHOE#,
Li
NE
IN
£D
2.0V(+6dBY)
AAU
INPUT
LEVELE
Y
2
—
AERWL,
UXWA-9—-OFOVERI
AMAA
LIN
E
OUTPUTAE
2.00,.SYDIRKELYS.
4-1. 9B
*RBPCB :
FYINPCB (4-1)
DIGITAL PCB
TP404 © tno .
ro at T402 TP403
Hel Leg R
TP402 +5V GNO
GND
GNO XTEST
TP405
TP407°
TP410
° TP4I13
R496
PILOT GND
486
TP4i2 a as 8
21
SRE
ESEME
SAS
LESION
AY
SEEN
aga
oy
a
wees: