Tektronix 2235 User Manual

AT ES
AG RAM
T ROUBLESHOOT
PREREGULATOR
A
ND I NVERTER
C I RCU I TRY .
W ARN I NG
(NOTE 3)
7*
YES
AD J UST F OCUS AND
I NTENS I TY CONTROLS
F OR Α WELL-DEF I NED
V I S I BLE
D I SPLAY .
U SE MANUAL
PERF O RM A N CE C HE C K
PR OC ED
URE TO
VER I FY I NSTRUMENT
FUNCT I ONS
RELEASE

Y ES
BEAM F IND,
TURN I NTENSITY
CONTROL FULLY

DOES Α \
CW > AND AD J UST

B
ASE L I NE T RACE
THE
VERT
I CAL

A PPEAR?
AND
HORIZONTAL
P OS I TION
CONTROLS

ΝΟ
ARE A LL

No ~

T ROUBLESHOOT
V OLTAGES

F AULTYSUPPLY
B
AD?

7*
SEE
MANUAL
AD J USTMENT
PROCEDURE TO
AD J UST CRT
GR I D B I AS
AND
F
OCUS
TROUBLESHOOT
C I RCU I TRY
ASSOC I
ATED
W ITH ANY
F
A ULTY
FUN CT
I ONS
L OCATED
PRESS IN
A
ND
H
OLD
BEAM F I ND
PUSH
BUTTON
DOES Α
B ASE
L I NE T RACE
A PPEAR?
ΝΟ
TURN C RT
GR
I D B I AS
AD J R851
FULL Y
CL
OCKW I SE
7*
TR O UBLE SH OOT
Z-AXIS
A ND CR T CI RCU I TS
7*
RELEASE
BEAM
F
I ND
CHECK TP842 FOR Z-AXIS
UNBLANK I
NG PULSE
(VAR I ES FROM 10V
TO 60V
Ρ -Ρ W
I TH I NTENS I TY
CONTROL)
7*
T
RO UBLE SH OOT
S

YES

DC
RESTORER
UNBLANK
I
NG
PULSE

A ND CRT
`R SENT?

C I RCU I T
7*
NO
C HECK
R707 F OR THE
Α S WEEP
SAWTOOTH
( ' 12V Ρ-Ρ )
4*
Α S
WEEP
_
I S CORRECT
\

.i ρ

G ENERATOR I
Α
S WEEP SAWTOOTH }-

A
ND Α S WEEP
PRESENT? /

Ι
L
OG I C
C I RCU I TS
4*
YES
CHECK C RT
HORIZONTAL
DEFLECT I ON PLATE P
I NS
F
OR Α S WEEP SAWTOOTH
(,' 40V Ρ- Ρ
ON E ACH LEAD)
/ I S
CORRECT
Α S WEEP SAWTOOTH

NO
PRESENT ON BOTH
P
INS?
Y
ES
Y ES
1S TRACE
NEARLY CENTERE
ΙΝ ΤΗΕ GRAT I CULE
WITH
BOTH
P
OS I TION C
(HORIZONTAL
AND VEF
\ENTERED IN THE
R ANGE?
T
ROUBLESHOOT
TROUBLESHOOT
HORIZONTAL
AMPL I FIER
A ND SWEEP
S W I TCH I NG
C I RCU I TS
5 ,6 *
Y ES

Tektronix 2235 Specifications

General

Brand	Tektronix
Model	2235
Category	Test Equipment
Language	English