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Model 204ClD
Table of Contents
Scctiun VIll (:Cont’d) Page
N-6. Change No. 3 for 204C Serial No. 962-04140
and lower: 204GH20 Serial No. 951-03765
and lower; 204D Serial NO. 910-00225
and lUWFl 8.1
8-7. Change No. 4 ror 204C Serial No. 951.03990
and lower; 204CH20 Serial No. 962-04290
and lower: 204W Serial NO. 910.00225
and hwcr a.2
SE. Charm No. 5 for 204C Serial No. 968.04840
and-lower; 204C-HZ0 Serial No. 989.05115
amI lower: 204D Serial No. 987-00570
Section Vlll (Cont’d)
Page
8.10. Change No. 7 fur 204C Serial No.
OY89r-205715 and Iowe~: 204D Serial NO.
0987AOO745 and lower 8.2
8.11. Change No. 8 for 204C Serial No.
0989A15155 and luwcr: 204GH20 Serial
No. 1105A03675 and lower 8.2
Model 204C/204D
Model 204Cj204D
Section VIII
8-l
Section Vlll 8-2
and lower 8-2
Model 204C/204D Scctiun VIII
8,3
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8.9. Change No. 6 for 204C Serial No. 988.04840
and Iowcr; 204C-HZ0 Serial No. 989.05115
and luwcr; 204U Serial No. 987”00570 APPENDlCES
and lower a-2 A. Code List of Manufxturcrs
B. Sales and Service Officer
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LIST OF TABLES
Table
l-l, Specifications. ....................... l-l
54. Distortion Ch
1.2. General information ................... l-2
5.5. Factory Selected Componcnls (*). .......... 5-9
S-l, IRequired Test Equipment, ............... 5-O
6-l. Model 204C Replaceablc Parts
5.2. Dial Accuracy Chwk 5-t
(Including HZO) .................... 6-2
...................
5.3. Flatness Check ....................... 5”2 6.2. Model 204D Heplnceablc Parts. ............ 6.9
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LIST OF ILLUSTRATIONS
Figure Page
3-1. Dcvcriptiun ol‘Controls,
,rlic.l,nrr and Cnnncctors 3.2
4-1. Model 204C Block Diagram 4-l
4.2. RC Network Chwacterisrics. 4-2
5.1. Thermal Cor~verter Cheek 5-2
5-2. Flntncss Check 5.2
5-3. I MHz Distortion Check. 5-3
Figure
Pa@
5.4, 204D Attenuator Accuracy Check 5”4
5-5 S-5. Balance Check
S-6. Sync Input Check S-6
5.7. Hum wd Noise Check
s-7
6.1, Model 204C Exploded View 6.4
6-4. Model 204D Exploded View .6.12
iv
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