Tektronix 465B

Theory ol
Operation—
465B
Service
FROM
CHANNEL
PREAMPL!:
CH 1 DIODE
GATE
CR1445
CR1443
CR1447
CR1441
NORM
A
TRIG
PICKOFF
Q1215.Q1118
FROM A
TRIGGER VIEW
AMPLIFIER
TRIGGER
VIEW
DIODE
GATE
CR
1438, CR
1434
CR1432.CR1436
VDELAY
“
LINE
DRIVER
Q1428
Q1426
NORM
TRIG
SIGNAL
TO
TRIGGER
GENERATORS
,
VERTICAL
(
SIGNAL
(
T°
)
DFLAY
LINE
FROM
CHANNEL 2
PREAMPL
CH 2 DIODE
GATE
CR1645
CR1547
CR1543
CR1641
CH 1 SELECT
CH
2
SELECT
ADD SELECT
TRIG VIEW SELECT
XY SELECT
VERTICAL
SWITCHING
LOGIC
U1605
U1705
U1805O
01636
01619
Q1719
01617
TRIGGER
.
VIEW
OFFSET
ENABLE
TO
HORIZONTAL
DISPLAY
LOGIC
ALT/CHOP
VERTICAL ALT TRACE
SYNC PULSE
FROM
HORIZONTAL
DISPLAY LOGIC
CHOP.
CLOCK 8- ALT
LOGIC
U1905A.B.C.D
U1805AB.C, 01812
CHOPPED
BLANKING
TO Z AXIS
AMPLIFIER
37