HP 1317A Operating And Service Manual page 60

Changes and Options
Model 1317A
Table 7-2. Standard Options
Option Description
005 Form fitting neutral density (smoke gray) contrast filter with antiglare coating to
improve trace contrast for easier viewing in bright lighting.
006 Form fitting blue contrast filter with antiglare coating.
008 Designed to meet UL listing requirements for medical and dental equipment.
Includes a special input power cord (HP Part No. 8120-1992) and the special con-
trast filter which is Option 005.
050 TTL blanking input. High state (+2.5 V to +5 V) blanks any analog Z-input. Low
level (0.0 V to 0.8 V) returns blanking to analog Z-axis input.
051
Differential inputs to X, Y, and Z amplifiers. Inputs for each axis are through
separate BNC connectors (shield grounded).
052 Four bit binary Z-axis input provides 16 levels of gray (TIL compatible). Settling
time ,,300 ns. See schematic 7 for optional components. With pins 4,5,6, and 7 of
J5 open, display is fully unblanked. With pins 4, 5, 6, and 7 of J5 shorted to ground,
display brightness is minimum. Adjust Option 052 circuitry as follows:
a. Disconnect all inputs to J5.
b. Apply fully-unblanking voltage to J3 and position beam off screen to avoid
burning CRT screen.
c. Monitor dc voltage at A5TPI.
d. Adjust A5R20 for +60 V at A5TPI.
/
e. Short pins 4, 5, 6, and 7 of J5 to ground.
f. Adjust A5R71 for +12 V at A5TPI.
To make signal connections to J5, the following three components are recom-
mended: Mating Connector, HP Part No. 1251-0063, Mfr Code 71785, Mfr Part
No. DBM-25P. Hood for Mating Connector, HP Part No. 1251-0392, Mfr Code
71785, Mfr Part No. DB-51212-I. Retainer, Mating Connector, HP Part No.
1251-1042, Mfr Code 71468, Mfr Part No. DB-51221-I.
053
Light output varies linearly (±20%) with linear change in Z-axis drive (Gamma
correction).
054
TTL blanking input. Low state (0.0 V to +0.8 V) blanks any analog input. High
stage (+25 V to +5 V) returns blanking to analog Z-axis input.
055
Fixed slides for use in EIA standard 19 inch rack.
604
P4 phosphor, aluminized, open graticule CRT in lieu of P3I.
607
P7 phosphor, aluminized, open graticule CRT in lieu of P3I. Includes amber
contrast filter with antiglare coating.
639
P39 phosphor aluminized, open graticule CRT in lieu of P3I. HP Part No.
5083-4572.
905
2-1/2-foot power cord for use in rack-mount installations (HP Part No. 8120-1625).
I
Conforms to standard CEE 22-VI.
7-2