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Old 10-01-2021, 04:33 PM
zeno's Avatar
zeno zeno is offline
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The TNR shield is a great COLD ground so use that. Measure on ch 3 or 4
PCB markings will vary by set but typically be marked:

IF
AGC
5V
Data
cont
enable
TV
B+
clock
+32.......................

Looking at the basic numbers may show a problem.

Quote:
Originally Posted by jmm83 View Post
do i just test the pins on the tuner for the voltages?
can i hook my millimeter to the tuner shield for the ground?
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Old 10-02-2021, 01:24 AM
jmm83 jmm83 is offline
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rca tuner voltage readings

Hi
i did not see the board marked the same way but maybe it's a little different
there were 10 pins on the tuner. let me know if i need to do anything else

AGC 8.01
BV/U 9.65
BS1 13.12
Tune Volt 4.69
BS2 13.08
12vDC 9.84
IFout - No reading
5vdc 4.97
PSC5v 0.05
FLO/K 3.51
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