Pye Video PY90VG, Service Manual

Page: 59 / 83

1-15-1 W3N4HTI
SYSTEM CONTROL TIMING CHARTS
< VCR Section >
Mode SW: LD-SW
Note: EJ RS: Loading FWD (LM-FWD / REV “H”)
RS EJ: Loading REV (LM-FWD / REV “L”)
Stop (A) = Loading
Stop (B) = Unloading
Note:
LD-SW Position detection
A/D Input voltage Limit
(Calculated voltage)
Symbol
3.76 V ~ 4.50 V (4.12 V) EJ
4.51 V ~ 5.00 V (5.00 V) CL
0.00 V ~ 0.25 V (0.00 V) SB
1.06 V ~ 1.50 V (1.21 V) TL
0.66 V ~ 1.05 V (0.91 V) FB
1.99 V ~ 2.60 V (2.17 V) SF
1.51 V ~ 1.98 V (1.80 V) SM
3.20 V ~ 3.75 V (3.40 V) AU
0.26 V ~ 0.65 V (0.44 V) AL
4.51 V ~ 5.00 V (5.00 V) SS
2.61 V ~ 3.19 V (2.97 V) RS
Note:
Symbol Loading Status
EJ Eject
CL Eject ~ REW Reel
SB REW Reel ~ Stop (B)
TL Stop (B) ~ Brake Cancel
FB Brake Cancel ~ FF / REW
SF FF / REW ~ Stop (M), (FF / REW)
SM Stop (M), (FF / REW) ~ Stop (A)
AU Stop (A) ~ Play / REC
AL Play / REC ~ Still / Slow
SS Still / Slow ~ RS (REW Search)
RS RS (REW Search)