JVC 330 Service Manual page 43

IICDATA IIC data line. Bi-directional serial line for synchronous data transfer
Inputs Description
/VFBST Signal to control the vertical oscillator frequency and retrace timing
/HSYNCR Regenerated horizontal sync signal
Outputs Description
/HVFLBCK Pulse signal representing horizontal flyback used to determine phase of
Inputs Description
GEOCORR Periodic signal for L/R keystone and L/R pincushion correction
FLRCLING TTL level indicating whether or not raster is inverted
Outputs Description
VERTDR Pulse output from vertical oscillator.
HLINR DC voltage controlling horizontal edge linearity correction
HFDBK DC voltage proportional to the H power supply output voltage
WIDTH DC voltage indicating commanded width.
TBKEYCOR DC voltage representing commanded top and bottom keystone correction
HSENSRED DC voltage, high when flyback pulse for red yoke is present at normal
HSENSBLU Similar to HSENSRED.
HSENSGRN Similar to HSENSRED.
Inputs Description
/INLCK Return from series daisy-chain for sensing yoke connectors installed.
Outputs Description
+INLCK Negative voltage supply from the horizontal power supply to the daisy-
+BHORYK Positive supply from the centering current source to the blue horizontal
-BHORYK Return from the blue horizontal main deflection coil to the horizontal
+GHORYK Similar to +BHORYK.
-GHORYK Similar to -BHORYK.
+RHORYK Similar to +BHORYK.
-RHORYK Similar to -BHORYK.
Model 330, 340SC and 370SC Service Manual
between SCB and other circuit boards. See detailed description for
list of signals transferred and data direction.
Raster Timing Generator
image
Vertical Deflection Board
frequencies.
Main Horizontal Deflection Coils
chained yoke connector interlock.
main deflection coil.
deflection power transistor.
Chapter 2—Functional Description
2-31