HP 5300A - Page 49

Model 5300A
Maintenance
TEST 9 (SAME AS DIAGNOSTIC CARD NO. C) MOS "TIME BASE AND COUNTER CHECK"
Pin No. | Connected To Pin No. Description Display Should Be
—____—_—__+. (9) Gnd/Open, Print and Transfer
(20), (19)
———____+-(18) F //Time Base Output
—______—+
(16)
F,/Clock
Same
as
Paragraph
5-38
——————> (37) Digit Address ''X"/Digit Select 'X"
———_——~ (39) Digit Address 'Y''/Digit Select ''Y”
———__—_+- (41) Digit Address "Z"/Digit Select ''Z"
—_—————+ (25) DC-IN (22 V)
TEST 10 (SAME AS DIAGNOSTIC CARD NO. C) or Test 9. Same as Paragraph 5-39
yo Connect pins listed in TEST 9 and ground pin 22, Time Base Select "A".
TEST 11 (SAME AS DIAGNOSTIC CARD NO. C) or Test 9.
Same P h 5-40
a Connect pins listed in TEST 9 and ground pin 23, Time Base Select ''B". Seen aoe
4 TEST 12 (SAME AS DIAGNOSTIC CARD NO. C) or Test 9.
Connect pins listed in TEST 9 and ground pins 22 and 23, Time Base
7 Select "A", "B".
Same as Paragraph 5-41
TEST 13 (SAME AS DIAGNOSTIC CARD NO. D) or Test 9.
t
i
:
‘
’
;
‘Same
as
Paragraph
5-44
i
Connect
pins
listed
in TEST
9
and
ground
pin
24,
Time
Base
Select "'C"
Hi TEST 14 (SAME AS DIAGNOSTIC CARD NO. D) or Test 9.
ii
:
:
:
.
.
Same
as
Paragraph
5-45
i
Connect pins listed
in TEST
9
and
ground
pins 22
and
24,
Time
Base
iW Select "A", "C'.
‘ty TEST 15 (SAME AS DIAGNOSTIC CARD NO. D) or Test 9.
Connect pins listed in TEST 9 and ground pins 23 and 24, Time Base Same as Paragraph 5-46
Select "B", ''C".
TEST 16 (SAME AS DIAGNOSTIC CARD NO. D) or Test 9.
Connect pins listed in TEST 9 and ground pins 22, 23, and 24, Time
Base Select "A", "B', ''C".
Same as Paragraph 5-47
5-59. Oscilloscope Drift Method c. Set the oscilloscope time/cm to its fastest
sweep time. Set the oscilloscope triggering to
5-60. The 5300A oscillator may be adjusted against external.
a reference or “house” standard using the oscilloscope
drift. method. With this method, drift in “‘parts in 108” d. Adjust the oscilloscope vertical amplifier
can be monitored. To adjust the oscillator proceed controls and the time base controls until the oscillo-
as follows: scope display is exactly 10 cycles of the oscillator
waveforms. :
a. Connect 5300A rear panel OSC jack to oscillo-
scope vertical input. e. The oscilloscope display should be a station-
ary pattern. Unless the 5300A oscillator frequency
b. Connect the =Standard Reference 5 MHz and reference standard frequency are identical, the
source to the oscilloscope external input jack. display on the oscilloscope will drift left or right. A
5-14