475 Service
Page 1 of 10
I n c l u d e s c o r r e c t i o n s a n d c h a n g e s w i t h s t a r t i n g S / N as f o l l o w s :
B 0 2 0 0 0 0
M 1 9 ,949
B 0 3 0 0 0 0
M 2 0 , 0 1 7
B 0 4 0 0 0 0
M 1 9 ,283
M 1 9 , 9 1 5
B 0 5 0 0 0 0
M 2 0 ,104
M 1 9 , 9 9 4
B 0 6 0 0 0 0
M 1 9 ,883
M 2 0 , 3 1 0
M 1 9 . 8 5 5
M 1 9 , 9 3 5
M 2 0 , 2 0 5
B 0 7 0 0 0 0
M 1 9 , 9 4 7
E L E C T R I C A L P A R T S L I S T C O R R E C T I O N S
( C h a n g e d p o r t i o n s a r e u n d e r l i n e d , A D D ' s a r e a l l n e w )
A C T I O N
C K T NO.
PA R T N U M B E R
S /N
D E S C R I P T I O N
C h g
A 4
6 7 0 - 2 2 4 3 - 0 0
A L L
V E R T M O D E - G A I N SW. Ckt. Brd. Assv.
C h g
A 9
6 7 0 - 2 2 3 9 - 0 0
A L L
I N T E R F A C E Ckt. Brd. Assy.
C hg
C 4 2 0
2 8 1 - 0 5 4 7 - 0 0
B 0 6 0 0 0 0
2.7 pF, Cer, 500 V
C h g
C 4 9 4 A
2 8 3 - 0 1 9 8 - 0 0
B 0 5 0 0 0 0
0.22 pF, Cer, 50 V, 2 0%
A d d
C 4 9 4 B
2 8 3 - 0 3 4 1 - 0 0
B 0 5 0 0 0 0
0 . 0 4 7 p F (added w h e n r e q u i r e d )
C hg
C515
2 8 1 - 0 6 0 5 - 0 0
B 0 6 0 0 0 0
2 0 0 pF, Cer, 500 V
R e m o v e
C 517
2 8 1 - 0 5 7 9 - 0 0
B 0 5 9 9 9 9 X
21 pF, Cer, 500 V, 5%
R e m o v e
C 708
2 8 1 - 0 5 7 9 - 0 0
B 0 5 9 9 9 9 X
21 pF, Cer, 500 V, 5%
Chg
C735
2 8 1 - 0 6 0 5 - 0 0
B 0 6 0 0 0 0
200 pF, Cer, 500 V
Chg
C913
2 9 0 - 0 5 2 3 - 0 0
B 0 6 0 0 0 0
2.2 pF, E l e c t . , 20 V, 2 0%
A d d
C R 9 1 0
1 5 2 - 0 1 4 1 - 0 2
B 0 6 0 0 0 0
Silicon, 1N4152
R e m o v e
L552
2 7 6 - 0 5 2 8 - 0 0
B 0 5 9 9 9 9 X
Core, f e r r a m i c s u p p r e s s o r
R e m o v e
L562
2 7 6 - 0 5 2 8 - 0 0
B 0 5 9 9 9 9 X
Core, f e r r a m i c s u p p r e s s o r
A d d
L 669
2 7 6 - 0 5 0 7 - 0 0
B 0 3 0 0 0 0
Core, f e r r a m i c s u p p r e s s o r
R e m o v e
L 7 9 4
2 7 6 - 0 5 0 7 - 0 0
B 0 5 9 9 9 9 X
Core, f e r r a m i c s u p p r e s s o r
C h g
Q 5 5 2
1 5 1 - 0 4 3 4 - 0 0
B 0 6 0 0 0 0
Silic o n , PNP, 2 N 4 2 6 1
C h g
Q 5 6 2
1 5 1 - 0 4 3 4 - 0 0
B 0 6 0 0 0 0
Silic o n , PNP, 2 N 4 2 6 1
Chg
Q 7 7 2
1 5 1 - 0 4 3 4 - 0 0
B 0 6 0 0 0 0
Silic o n , PNP, 2 N 4 2 6 1
C h g
Q 7 8 2
1 5 1 - 0 4 3 4 - 0 0
B 0 6 0 0 0 0
Silic o n , PNP, 2 N 4 2 6 1
C hg
R32, R34,
R 3 5 , R36, R 4 4 7 , & R 4 5 4 are
s e l e c t e d parts, n o m i n a l
i n s t a l l e d
v a l u e is listed
C l / 3 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 ...