Teac MT-20D-IO - Page 88

(37) TP3 (TCH) PCBA Interface Control
Test point for measuring the tachometer pulses.
TP3 is used to check the tachometer pulse frequency.
TP3
1/16 frequency division signal
of ENC signal at J4-l2
Fig. 358 Example of waveform at TP3
(38) TP4 (RD) PCBA Interface Control
Test point for measuring the read data signal.
TP4 is used to monitor the read data signal transferred from the
drive to the PCBA Interface Control.
(39) TP5 (RDP) PCBA Interface Control
Test point for measuring the read data pulses.
TPS is used to check the read data pulse width, etc.
TP4 ~
TP S ~ rmn ....... "-------'nIID flII1J
250 ns III
600~
Fig. 359 Example of waveforms at TP4 and TPS
(40) TP6 CWO) PCBA Interface Control
Test point for measuring the write data signal.
TP6 is used to monitor the write data signal transferred from the
PCBA Interface Control to the drive.
(41) GND PCBA Interface Control
This point is connected to 0 v.
- 376 -