Sony DVS-7200A Maintenance Manual page 87

(3) Checking the test result
Check every test item of the "PIO data read".
(a) "1. STATUS [PIO-1 reg B]" is the adjustment item at the factory.
(b) "2. DIP SW [PIO-1 reg D]"
The switches 1, 3 and 4 of the DIP switch (S4) on the CPU-246 board must be selected to "ON"
and the other switches must be selected to "OFF".
(4) "1. Write" for the adjustment item at the factory
(5) Ending the "Read test"
Press your required terminal button to return to the "PIO test" display.
(6) Ending the "PIO test"
Input "Q" on the "PIO test" display and press [RETURN].
The display returns to the "H/W Tester on CPU-246" menu.
Input test No. > Q
DVS-7200AE MMP1
3-3. Troubleshooting (BKDS-7015)
3-3-4. Test Procedures
3-19