HP 652A Operating And Service Manual page 41

�
When using the troubleshooting tree, set the 652A controls as follows,
unless stated otherwise for a particular step:
. . .
FREQUENCY RANGE . .
.
FREQUENCY Dial . . . . . . . . .
OUTPUT ATTENUATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.0V
OUTPUT MONITOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NORMAL
• OUTPUT AMPLITUDE and VERNIER controls . . . . . Adjust for an
A tolerance of +/- 1 0% should be allowed for
troubleshooting tree, unless stated otherwise. Refer to Paragraph 5-52
at each step of the tree.
•
N OT E
. . .
. . . . . . . . . . . . . . . . . . . . . . . XI K
.
. . . . . .
. . . . . . . . . . . . . . . . . . . 5
voltmeter indication of 3V
Re VIS
(use test setup shown in Figure
5-2)
all voltages given in the
FAlSE
'
""" " � � � � � � � � � � � �
I" " "" '§p-"W SB '--
__
4
I
+3CV ±O.9V AT AI P I N I
2:
- 2 5 V ±O.75V AT AI PIN
"'"
+
7 5
3ev RMS ,,5% A T A I PINS :; S 5 CHECK POWER SUPPLY
35V RMS f 5 % AT A1 PINS 6 S 7 CONNECTIONS TO ��� � � � -=- �
EX N R T
FALSE
r�UE
8 9
10
CHECK TI AND CHECK CHECK
6%�-b�� fs t��� ���
E T E V
N s y S y
L � � � � � � � � _ � � � � � � � �
'5�A-!,""aa
fALSE
2
CHECK FI AND ENSURE
55 is IN THE CORRECT POSITION
3
READ NOTE :;
OF PARAGRAPH 5 - 5 2
I
TRUE
I
p-p
i6V
AT A2 P I N 20
'"' '
''"'
I
1 2
CHECK I
POWER ���
AMPLiF
L J
l
� �
r �
I
6
CHECK
I I
i �Z �i
OS
' OR
, u
L _ _ _
�
OUTPUT UNO:$TORTED AND W I T H I N
SPEC1FICATIONS A T 90TH OUTPUT TERMINALS
NORMAL MONITOR CIRCIJIT
-- � - - - -
r
-,. �- - - - -
r
1 5
5.8V AC
AT AI P I N 14
""'
fALSE
1 3
1 6
O.
CHECK CHECK �2 R 4 1
COLLE(
OUTPUT A N D A2 C2S*
ATTNUATDR
FALSE
+
1 8
CHECK Al aS, A I 09
AND RECTIF!ER
L _ _ __ _ _ _ _ _ _ _ _ _
_