I need some help with my QCX20 ver. 3.? It originally worked, receiving well but only 1.75 watts output.? I measured 5.1 watts at the drain on all BS170¡¯s? I then reworked L1, L2 and L3 removing a couple of turns from each.? It seemed to make little difference in the output but then I smelled heat and smoke and shut it down immediately.??Capacitor C26 appears to have gotten very hot.??I have not replaced it yet. Now I have no LCD except the two rows of squares, no receive or output.
I have 13.36 and 5.0 out from the regulator.
I have .01 on both Clk0 and Clk1.
C2 is 3.42; D2 is 5.02; T1 pins 1,2,3,4 are 0 and pins 5, 6.7, 8 are 2.47.
Top of C43 is 2.47; C44 is 1.28; C45 is 1.28; C46 is 2.47.
LCD PIN 1 ¨C 0.00?????????????? (0.00)
LCD PIN 2 ¨C 4.98?????????????? (4.94)
LCD PIN 3 ¨C 1.58 ????????????? (0.57)
LCD PIN 4 ¨C 0.00?????????????? (4.92)
LCD PIN 5 ¨C 0.00?????????????? (0.00)
LCD PIN 6 - .20????????????????? (0.00)
LCD PIN 7 ¨C 4.97?????????????? (1.08)
LCD PIN 8 ¨C 4.96?????????????? (1.08)
LCD PIN 9 ¨C 4.96?????????????? (1.06)
LCD PIN 10 ¨C 4.96???????????? (1.04)
LCD PIN 11 ¨C 4.48???????????? (0.00)
LCD PIN 12 ¨C 4.36???????????? (4.94)
LCD PIN 13 ¨C 4.12???????????? (4.92)
LCD PIN 14 ¨C 4.12???????????? (0.00)
LCD PIN 15 ¨C 4.66???????????? )4.41)
LCD PIN 16 ¨C 0.00???????????? (0.00)
?Thanks for any help.
Gary K4VIG
