SBE SB-36 - Voltage Table and Injection Points; Receiver DC Voltages - no Signal Input - USB Mode

SBE SB-36 OPERATION MANUAL
with a capacitance meter or by checking whether the capacitor passes
AC signals.
6.3.2 Voltage Table and Injection Points
Table 6.1 contains voltage measurements and injection levels to be
used as an aid in isolating a defective stage or component.
TABLE 6. 1 VOLTAGE TABLE AND SIGNAL INJECTION LEVELS
Table 6.1.1 Receiver DC Voltages - No Signal Input - USB Mode
V4 6BZ6 (R.F. Amplifier) Pin 1 0.08 V
Pin 2 1.0 V
Pin 5 320 V
Pin 6 102 V
Pin 7 1.0 V
V3 6AW8 (Receiver Mixer) Pin 6 1.95 V
Pin 7 0.1 V
Pin 8
50 V
Pin 9 320 V
Gate Source Drain
TR-7 (IF Amplifier) 0.01V 0.47V 20V
TR-28 (IF Amplifier) 0.15V 1.1V 20V
Base Emitter
Collector
TR-27 (IF Amplifier) 7.2V 6.6V 18V
TR-26 (IF Amplifier) 6.8V 6.2V 14.5V
TR-29 (AGC Amplifier) Base Emitter
Collector
AFC OFF -8V -8V 0
AGC ON – No Input -8V -8V 0
AGC ON - 10µV Input -7.5V -8V -4V
AGC ON – 1000µV Input -7.4V -8V -5.6V
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