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TROUBLESHOOTING & REPAIR |
T1 TRANSFORMER TEST (continued)
6.If all of the secondary voltages are correct the T1 transformer is func- tioning properly.
A.If all of the secondary voltages are missing or incorrect make certain that the correct input volt- age is being applied to the correct primary leads. See Table F.1.
B.If the correct input voltage is being applied to the primary leads and any or all of the secondary voltages are incorrect the T1
transformer may faulty. | See |
Main Transformer and Output
Choke Removal and Replacement. Also check the leads for broken or loose connec- tions between plugs J3, J4 and the T1 transformer.
7. Replace case
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TABLE F.1 T1 TRANSFORMER VOLTAGE
TEST POINTS | ACCEPTABLE VOLTAGES |
|
|
SECONDARY WINDINGS | SECONDARY VOLTAGES |
|
|
PLUG J3 PIN 8 (LEAD #210) |
|
TO | 18VAC |
PLUG J3 PIN 7 (LEAD #209) |
|
|
|
PLUG J3 PIN 4 (LEAD #201) |
|
TO | 18VAC |
PLUG J3 PIN 3 (LEAD #204) |
|
|
|
PLUG J4 PIN 2 (LEAD #260) | CHECK DURING FIRST 5 SECONDS OF POWER UP |
TO | 115VAC |
PLUG J4 PIN 3 (LEAD #232) |
|
|
|
X1 TO X2 | 80 VAC |
|
|
PRIMARY WINDINGS | PRIMARY VOLTAGES |
|
|
H1 TO H2 | 208VAC |
|
|
H1 TO H3 | 230VAC |
|
|
NOTE: If the input voltages vary the secondary voltages will vary accordingly.