Tektronix 7623, Instruction Manual

Page: 263 / 266

Page 4 of 7
7623
Fig. 6-9
Back of Diagram 6
CHANGE:
Title of photo to read;
Fig. 6-9. A10 High Voltage No. 2 circuit board
Fig. 6-10 Back of Diagram 6
CHANGE :
Title of photo to read:
Fig. 6-10. A9 High
Voltage No. 1 circuit board.
CHANGE : R1240 to read R1242
CHANGE :
C1215 above R1208 to read CR1215
CHANGE :
CR1255 to read VR1264
CHANGE : CR1254 to read CR1255
ADD:
CR1264 above R1258
ADD: CR1254 between C1250 and top of T1225
MOVE: R1245 down to the right of CR1232
Diagram 7 Refer to Electrical Parts List for correct values or
removal of the following: R1195, R1196, R1126, R1210
CHANGE Terminal numbering for P1170 (top to bottom) to read
as follows: 7,6,5,4,3,2,1,8 (one is the index).
Fig. 6-11
Back of Diagram 7
C827 is located below R833 for some serial numbers,
see insert for M20,382. In later production C827,
R806, R808, R809, R811, R814, R821, R822, C811, C813
and C821 are relocated on the board, electrical
connections remain as shown on diagram 8 or as stated
on inserts in your manual.
Fig. 6-12 Back of Diagram 7
CHANGE : The R966 next to R983 to read R986
ADD: C975 at left of Q952
NOTES :
R973 is located on back of board for some SN. C876
and C936 (added at SN B080000)were located on back
of board.
C5/1273