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15.1.5 Bias Voltage Check
1.
Connect an electrical voltmeter. (Cf. Fig. 9) (Cf. Fig. 12)
2.
Set the function to "TAPE" position.
3.
Insert a normal blank cassette tape (QZZCRA).
4.
While pressing and holding down [REC (
(Repeat pressing the buttons till the recording pause mode is activated.)
5.
Check that the output level is within the standard range.
Standard Range: 14 ± 4mV
15.1.6 Bias Frequency Check
1.
Connect a digital frequency counter (Figure 13).
2.
Set the function to "TAPE" position.
3.
Insert a normal blank cassette tape (QZZCRA) and press "REC" mode on main unit.
4.
Check that the output frequency is within the standard range.
Standard Value: 98 ±8 kHz
Fig. 11
/
)] button, press [TAPE (
Fig. 12
Fig. 13
)] button to pause the recording mode.
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