Service manual

Section I: Imagesetter
Diagnostics 3-21
DEC Tests
Test Function
Register Test Test SPI registers (offgate, ongate, vacuum, vacuum 2)
DSP Echo Test Verify DEC - DSP communications
Carriage Test Verify encoder feedback from carriage movement
Supply Motor Test Supply Motor on/off bit tests at 0 current
Take-up Motor Test Take-up motor on/off bit tests at 0 current
Video 1 Int Test Image buffer test with 0x55 pattern
Video 2 Int Test Image buffer test with 0xAA pattern
Video 3 Int Test Image buffer test with incrementing pattern
Sensor Test Verify Sensor Array integrity (Not all FFs)
Vid Path-All Test Post PWM Video Path Test for all resolutions (VIDTEST bit at
beam-on)
OCP Echo Test (Unimplemented)
K1 SRAM Test
Vid Path-12 Test Post PWM Video Path Test for 1200dpi (VIDTEST bit at beam-on)
Vid Path-18 Test Post PWM Video Path Test for 1800dpi (VIDTEST bit at beam-on)
Vid Path-24 Test Post PWM Video Path Test for 2400dpi (VIDTEST bit at beam-on)
Vid Path-36 Test Post PWM Video Path Test for 3600dpi (VIDTEST bit at beam-on)
Supply Punch Test Supply Punch Motor-on/off bit tests at 0 current
Spindle B Test Spindle B Motor-on/off bit tests at 0 current
Spindle A Test Spindle A Motor-on/off bit tests at 0 current
Supply Cassette Test Supply Cass. Motor-on/off bit tests at 0 current
Take-up Punch Test Take-up Punch Motor-on/off bit tests at 0 current
Nips Test Nips Motor-on/off bits tests at 0 current
Take-up Cutter Test Cutter Motor-on/off bit tests at 0 current
Take-upCassette Test Takeup Cass. Align Motor-on/off bit tests at 0 current
Carr Speed Var Test
K1-SRAM Data (0x55)
K1-SRAM Data (0xAA)
K1-SRAM Data (0xCC)
K1-SRAM Data (0xF0)
K1-SRAM March (1’s)
K1-SRAM March (0’s)
K1-F1.ROM CHECKSUM