P a g e 2 of 10
A C T I O N
C K T N O
P A R T N U M B E R
S/N
475 Se r v i c e
D E S C R I P T I O N
C h g
R 4 9 4 A
3 1 7 - 0 6 2 1 - 0 0
B 0 5 0 0 0 0
620 fl, 1/8 W, 57o
A d d
R 4 9 4 B
3 1 1 - 0 6 3 3 - 0 0
B 0 5 0 0 0 0
5 kfl, Var, (added w h e n r e q u i r e d )
A d d
R 5 5 0
3 1 7 - 0 5 6 0 - 0 0
B 0 6 0 0 0 0
56 0, 1/8 W, 5%
A d d
R 5 6 0
3 1 7 - 0 5 6 0 - 0 0
B 0 6 0 0 0 0
56 0, 1/8 W, 57„
A d d
R 5 8 4
3 1 6 - 0 2 2 0 - 0 0
B 0 6 0 0 0 0
22 n, 1/4 W, 107»
A d d
R 7 9 2
3 1 6 - 0 2 2 0 - 0 0
B 0 6 0 0 0 0
22 fl, 1/4 W, 107,
C h g
R 8 0 6
3 1 5 - 0 6 8 1 - 0 0
B 0 6 0 0 0 0
680 Q , "1/4 W, 57
A d d
R 8 2 4
3 1 6 - 0 2 2 0 - 0 0
B 0 6 0 0 0 0
22 0, 1/4 W, 107,
A d d
R 9 1 0
3 2 1 - 0 2 2 0 - 0 0
B 0 6 0 0 0 0
1.91 kfl, 1/8 W, 17,
C h g
R 9 1 1
3 2 1 - 0 3 1 4 - 0 0
B 0 6 0 0 0 0
18.2 kfi, 1/8 W, 17»
C h g
R 9 1 2
3 2 1 - 0 2 6 1 - 0 0
B 0 6 0 0 0 0
5 . 1 1 kn, 1/8 W, 17,
C h g
R 9 5 2
3 2 1 - 0 1 9 8 - 0 0
B 0 6 0 0 0 0
1.13 kfi, 1/8 W, 17o
A d d
R 1 1 0 3
3 1 5 - 0 2 7 2 - 0 0
B 0 6 0 0 0 0
2,7 kfi, 1/4 W, 57o
Chg
T 1 4 0 0
1 2 0 - 0 7 9 9 - 0 1
B 0 70000
L V P ower
S C H E M A T I C D I A G R A M a n d B O A R D P H O T O C H A N G E S
S c h e m a t i c <\ ^ >
R125 w a s a v a r i a b l e r e s i s t o r
in e a r l y p r o d u c t i o n .
S e c o n d b o a r d outline
d o w n f r o m
top of page s h o u l d
be titled:
P A R T I A L A 4 V E R T I C A L M O D E - G A I N
S W I T C H BOARD.
O u t p u t at
r i g h t of T1 7 8 s h o u l d read:
C H 1 + V E R T S I G N A L < ^ >
to P i n 11
U 3 7 0 < ^ > .
O u t p u t at
r i g h t of R 1 8 9 s h o u l d read:
C H 1 - V E R T S I G N A L
To P i n 10 U 3 7 0
<V ^ )#
R e f e r to a c c o m p a n y i n g p a r t i a l
s c h e m a t i c
for other changes.
Fig.
7-7
T i t l e
for b o a r d in p h o t o a nd grid
l o c a t i o n c h a r t s h o u l d read:
A 4 V e r t i c a l M o d e - G a i n S w i t c h C i r c u i t Board.
Cl/373
Summary of Contents for 475
Page 6: ...475 475 Oscilloscope ...
Page 20: ......
Page 46: ......
Page 151: ...A B C D E F G Fig 7 4 P 0 A4 Vertical Mode Switch circuit board ...
Page 152: ...n m m m 1 t siumm c ii im ...
Page 154: ...Diagrams 475 A B C D E F G ...
Page 155: ...GRID LOCATOR Fig 7 8 P O A3 Vertical Preamp circuit board ...
Page 157: ...Diagrams 475 ...
Page 158: ...GRID LOCATOR 2 3 4 5 6 7 8 9 1 10 11 1 12 Fig 7 10 P 0 A3 Vertical Preamp circuit board ...
Page 160: ...Diagrams 475 GRID LOCATOR Fig 7 11 A5 Vertical Output circuit board ...
Page 163: ...Diagrams 475 GRID LOCATOR Fig 7 12 P O A8 Trigger Generator And Sweep Logic circuit board ...
Page 167: ... 415 OSCILLOSCOPE B T R IG G E R G E N E R A T O R g B TR IG G E R GEN ER A TO R ...
Page 168: ...Diagrams 475 GRID LOCATOR ...
Page 172: ...SWEEP G E N ER A TO R S ...
Page 175: ...TIM IN G HORIZONTAL DISPLAY SWITCHING ...
Page 177: ...A 011 HORIZONTAL AMPLIFIER 8 l j k J Ll J Ol Z o N C O X U 1 C L O o v O o _J V v P O in r ...
Page 179: ... 476 OSCILLOSCOPE ...
Page 180: ...POWER SUPPLY ...
Page 182: ...CRT CIRCUIT ...
Page 185: ...C A L IB R A T O R A N D F A N C I R C U I T 4 C A LIB R A TO R FAN MOTOR C IR C U IT ...
Page 189: ......
Page 190: ...4 T 475 OSCILLOSCOPE FIG 1 FRO NT PANEL ...
Page 191: ...475 OSCILLOSCOPE FIG 2 MAIN FRAME ...
Page 199: ......
Page 200: ...FIG 3 RIGHT SIDE l 475 OSCILLOSCOPE ...
Page 201: ...V S X O t l B O T T OVJ 8 8 ...
Page 209: ......
Page 210: ...5 ...
Page 211: ...4 4 75 O S C ILLO S C O P E FIG 5 CAB IN ET ...
Page 215: ......
Page 237: ......
Page 241: ... 1 I R I II9A po S IT I o n f i n e I R l 130 PAGE 4 OF 5 R 1234 Ml 9 91 9 473 ...