Figure 4.6.15 Detection Of Sync Pulse - Fujitsu M2361A Customer Engineering Manual

d. Sync pulse detector
CRA~P
TP3
TMGT
TP4
TN
LTSVC
*GSYNC
4 - 74
The Gated Sync Pulse signal (*GSYNC) is generated using the signal
generated by slicing the Carrier Amplifier signal (CRAMP). *GSYNC is
absent at the locations where the index pulses in the valid Index
pattern and the Guard Band patterns are written. This signal is used
for the VCO and logic circuits to detect patterns.
*GSYNC is generated by ANDing TP4 and the LTSVC signal generated by
the logic circuit.
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Figure 4.6.15 Detection of Sync pulse
B03P-4825-0002A ••• Ol