Assembly instructions static tests – Elenco SEE AMFM108CK User Manual
Page 38
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ASSEMBLY INSTRUCTIONS
STATIC TESTS
Q5 BIAS
Figure 34
TP10 - Test Point Pin
(see Figure A)
T2 - FM IF Coil
(Green Dot)
C17 - .01
μ
F Discap (103)
R16 - 10k
Ω
Resistor
(brown-black-orange-gold)
R18 - 1k
Ω
Resistor
(brown-black-red-gold)
R17 - 47k
Ω
Resistor
(yellow-violet-orange-gold)
R19 - 10k
Ω
Resistor
(brown-black-orange-gold)
Q5 - 2N3904 Transistor
(see Figure C)
C20 - .01
μ
F Discap (103)
C18 - .01
μ
F Discap (103)
TP15
COM V
V
Connect your VOM to the circuit as shown in Figure 34.
Turn the power ON. The voltage at the base of Q5
should be approximately 1.4 volts. Turn the power
OFF. If you do not get this reading, check R17, R16,
R18, Q5 and T2.
If you don’t have an RF generator and oscilloscope, skip to Section 8.
See also other documents in the category Elenco Measuring instruments:
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- Capacitor Substitution Box (8 pages)
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- 3 1/2 Digit Cap./ Trans./ Freq (4 pages)
- Digital Bench Multimeter (26 pages)
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- Tone Generator (4 pages)
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- Digital / Analog Trainer Kit Version (52 pages)
- Digital / Analog Trainer in Case (16 pages)
- Deluxe Digital / Analog Trainer with Tools Kit Version (52 pages)
- Digital / Analog Trainer (12 pages)
- Deluxe Digital / Analog Trainer (16 pages)
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- Variable Voltage Power Supply (8 pages)