Panasonic SA-PM53E Service Manual page 118

12.1.5. Bias Voltage Check
1. Connect an electrical voltmeter. (Fig. 9) (Fig. 12)
2. Set the function to "TAPE" position.
3. Insert a normal blank cassette tape (QZZCRA).
4. While pressing and holding down [REC (
[TAPE (
the buttons till the recording pause mode is activated.)
5. Check that the output level is within the standard range.
Standard Range: 13.5 ± 4mV
)] button to pause the recording mode. (Repeat pressing
Fig. 11
/
Fig. 12
118
)] button, press