Model 3300A
Section V
Table 5-4. Troubleshooting Aid (Cont'd)
SYMPTOM
POSSIBLE CAUSE
Half of sine wave clipped on both channels.
Check A14Q5 and A14Q7.
The synthesizer waveform is symmetrical about 10 volts at the base of
A14Q5 and at the corresponding junctions along the voltage divider
R10 to R15 and R25 to R20.
Loss of square wave symmetry at lowest
range.
Inoperative oven, open thermal fuse.
No oscillation on X.1 and X.01 RANGE; dial
at 1.
Check A11Q8.
+20 volts ok when oven cold, high when
oven hot.
Check A11Q1, A11Q2.
Slow symmetry drift.
Check A14CR21, A14CR20, A11Q6, A11Q7.
Figure 5-8. Troubleshooting Tree
5-9
Summary of Contents for 3300A
Page 31: ...Model 3300A Section VI Figure 6 1 3300A Top and Bottom Views 6 2 ...
Page 32: ...Model 3300A Section VI Figure 6 2 Oscillator Circuit Schematic A11 A13 and A14 6 3 ...
Page 33: ...Model 3300A Section VI Figure 6 4 Output Amplifiers Schematic A15 and A16 6 5 6 6 ...
Page 34: ...TM 11 6625 2495 14 P THIS PAGE CURRENTLY NOT AVAILABLE FOR DIGITIZATION PAGE Figure 6 3 6 4 ...
Page 35: ...Model 3300A Section VI Figure 6 5 Power Supply Schematic A12 and A11 6 7 6 8 ...
Page 36: ...Model 3300A Section VI Figure 6 6 J6 Plug In Receptacle 6 9 ...
Page 58: ...SECTION IV REMARKS REFERENCE REMARKS CODE A Visuals B Performance checks D 5 ...
Page 60: ......
Page 61: ...PIN 046175 000 ...