Samsung ML-1610XBH Service Manual page 130

Circuit Description
The main signals used in LSU Controller are shown in the table.
Name Direction
PVC-VDO
nLREADY
nHSYNC
nPSync
LSU_VDO
nHSYNC
windowOn
ldOn
windowOnTime
windowOffTime
ldOnTime
ldOffTime
testPattern
pattern start
counter start
PVC_ V D O
12.1.5 ADC Controller
Jupiter4E ADC Controller has 3 analog input channels.
It automatically converts the 3 channels in turns with 10 bit 500KSPS adc1275x_pc, and also it makes the conversion
on the desired time by manually controlling STC of the register. After finishing the conversion, it makes the interrup-
tion to be pending. When AD conversion of 3 rd channel ends for the PI Control of LSU, it sends the 10bit digital data
converted with the latch short pulse signal to LSUC.
Service Manual
12-6
Description
I The video data output from PVC.
I Its activity becomes low as the polygon motor of LSU gets the regular speed.
I It informs the beginning of one line. It is the same as nLSYNC of PVC.
0 It is inputted to nFSync of PVC.
0 The completed video data output by masking video window on PVC_VOD.
Laser Diode & Window On/Off Time
first field second field
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