Static Tests; Q5 Bias - Elenco Electronics AM/FM-108TK Assembly And Instruction Manual

ASSEMBLY INSTRUCTIONS
TP10 - Test Point Pin
(see Figure B)
T2 - FM IF Coil
(Green Dot)
C17 - .01µF Discap (103)
R16 - 10kΩ Resistor
(brown-black-orange-gold)
R18 - 1kΩ Resistor
(brown-black-red-gold)

STATIC TESTS

Q5 BIAS

Connect your VOM to the circuit as shown in Figure 35.
Turn the power ON. The voltage at the base of Q5
should be approximately 1.4 volts. Turn the power OFF.
Amps COM
TP15
If you don't have an RF generator and oscilloscope, skip to Section 8.
V
V/Ω
If you do not get this reading, check R17, R16, R18, Q5
and T2.
Figure 35
-38-
R17 - 47kΩ Resistor
(yellow-violet-orange-gold)
R19 - 10kΩ Resistor
(brown-black-orange-gold)
Q5 - 2N3904 Transistor
(see Figure D)
C20 - .01µF Discap (103)
C18 - .01µF Discap (103)