JVC 330 Service Manual page 81

SYSCLK 4.05MHz clock signal
IICCLK Clock signal for the IIC data bus.
+SERCLK Serial data transfer clock.
-SERCLK Serial data transfer clock.
+SERDATA Serial data transfer.
-SERDATA Serial data transfer.
I/O
IICDATA
Input
/IICINT
Output
IICCLK
+SERCLK
-SERCLK
+SERDATA
-SERDATA
RXCORR
RYCORR
GXCORR
GYCORR
BXCORR
BYCORR
Model 330, 340SC and 370SC Service Manual
Vertical Deflection Board
Description
Data line for transferring the following data (I = input, O =
output), the input data are associated with an interrupt
pulse.
I SLOAD
Description
Interrupt used to tell the SCB that the VDB has data to
report.
Description
Clock signal for the IIC data bus.
Serial data transfer clock.
Serial data transfer clock.
Serial data transfer. Used to transfer the following command
data:
VH+, VH- to control the vertical amplitude (height)
VCENTRED, VCENTGRN, VCENTBLU to control
vertical
centering of the red, green and blue rasters respectively;
TRAPCORR to control keystone correction;
LRPNCORR for left and right pincushion correction;
TBPNCORR for top and bottom pincushion correction;
HLINCORR for horizontal linearity correction.
Serial data transfer.
Horizontal correction output from DAC with 140 ohm Zout.
Vertical correction output from DAC with 140 ohm Zout.
Similar to RXCORR.
Similar to RYCORR.
Similar to RXCORR
Similar to RYCORR.
Chapter 2—Functional Description
2-69