Panasonic AJ-YA120AG, Service Manual

Page: 397 / 647

MECH-7
1-12. ENV Waveform Adjustment
TP
TP105: R/P L ENV (RF/EQ Board: Slot 1)
TP5: R/P L HSW (RF/EQ Board: Slot 1)
ADJ.
S2, T2 Post Height
MODE
PLAY (ATF)
TAPE
VFM3580KM or VFM3580KL
M. EQ
Oscilloscope
TOOL
VFK1149B (Post Driver)
SPEC.
V1/Vmax, V2/Vmax, V3/Vmax
≥
0.8
1. Play back the alignment tape.
2. Adjust the T2 post and then the S2 post height so
that the ENV output is within the specification.
Upon adjusting the S2 and T2 posts, first make a
post higher until the output becomes small, and
then lower until the output becomes flat.
3. After the adjustment, unload and load a tape and
confirm that the envelope is still in the specification
as shown in figure 1-12-1.
Figure 1-12-1