Akai GX-260D

TAPE SPEED 7 | ips
<3dB
2KC 20KC. 23KB
Fig. 18
5. FREQUENCY RESPONSE ADJUSTMENT
1) Refer to section regarding Frequency Response
Measuring Method (Fig. 3 of this manual).
2) Adjust REC Amp. P.C. Board semi-fixed capaci-
tors TC1, TC2 (70P) so that a 20 kHz signal
output level is the same in relation to 2,000 Hz.
(See Fig. 18)
3) The Bias Voltage will vary depending on the
Recording Head and tape being used.
. NOTE
1) The frequency response will vary depending upon
the tape being used. For model GX-260D, Fuji
tape F-100 is used for frequency response adjust-
ment.
2) Prior to adjustment, record at non-signal input
and adjust Bias Trap L1 (22 mH) so that the bias
leak at line out is minimum. (See Fig. 15)
6. ERASE VOLTAGE
There is no way to adjust the Erase Voltage, but
correct value is about 35V at 7-1/2 ips, and 30V
3-3/4 ips.