4 7 5 Se r v i c e
Page 3 of 10
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 Ch a n g e s
Fig. 7-8
C213, R 2 1 3 a n d C 2 1 9 are m o v e d to the b a c k of the b o a r d in later
pro d u c t i o n .
R293, R294, R2 9 6 a n d R 2 9 8 are located on b a c k of board.
S c h e m a t i c
R225 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 o u tline
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 B O A R D
O u t p u t a t r i g h t of T 2 7 8 s h o u l d read:
C H 2 + V E R T S I G N A L T o P i n 3, U 3 7 0
The line b e t w e e n R293 a n d R295 s h o u l d be conne c t e d .
O u t p u t at r i g h t of R 2 8 9 s h o u l d read;
C H 2 - V E R T S I G N A L T o P i n 2
U 3 7 0
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 s for ot h e r changes.
-I-15 V
U 120
H 1 3 6
P A R T I A L -
C H I V E R T IC A L PREAMP
C 1/373
R e v / 5 7 3
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 ...