Akai 1730-SS

LINE OUT
Fig. 3
RIO74.7K
tw
C107 10/16
C213 10/16
a LINE OUT
8 bs —_
iC-201 ES
LD-314I '
Cc
ian 10/725
9 8 t
ic-liol = & My
LD-3141 | Fz
REC LEVEL 1ORA
CONTROL
y.
7,
MONITOR
SW2
Fig. 4
3. ADJUSTMENT OF LINE OUTPUT LEVEL
1. Playback (See Fig. 3) Tape 2. Recording and Playback (See Fig. 4)
a. Set the Source/Tape Monitor Switch to “TAPE” a. Connect V.T.V.M. to the Line Output Jack.
position. b. Set the Source/Tape Monitor Switch to
b. Connect a V.T.V.M. (use one with Milli-Volt “SOURCE” position.
scale) to the Line Output Jack. c. Load a Scotch-150 blank tape and set the
c. Playback a test tape (250 Hz “0” VU recorded) Record/Playback Knob to recording position.
at 7-1/2 ips. tape speed and turn the volume d. Feed in a 1,000 Hz sine wave signal from an
VR-201 (10 KB) until the Line Output level Audio Frequency Oscillator to the Line Input
reaches “0” VU 1.228 V (+4 dB). of the 1730-SS and turn the Recording Level
Volume Control VR1 to 4 (10 KA) unti the
Line Output Level reaches “O” VU 1.228 V
(+4 dB).
e. Set the Source/Tape Monitor Switck to
“TAPE” position and turn the Recording level
Volume Control VR1 to 4 (10 KA) again antil
the Line Output Level reaches “O” VU.
f. Set the Source/Tape Monitor Switch to
“SOURCE” position again and turn the
Volume Control VR-101 (2 KB) until the Line
Output Level reaches “0” VU.
g. Repeat twice in the same way as indicaticl in
items e. and f. above.