jedyne do czego mogę mieć zastrzeżenie to jakość zdjęć zawartych w przesłanej instrukcji serwisowej ponieważ są fatalnej jakości, praktycznie nieczytelne. tak poza tym jestem zadowolony to jest to czego szukałem.
Instrukcja bardzo czytelna. zawiera co potrzeba. Polecam
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A
4) No Power
Check the condition of the input power & cable connection. (JP35(3V3STB, A+12V, +6.5V), JP36(5VSTB,35V), JP34(5V), JP33(S_16.5V)) Check the condition of on-board regulators. Check for short circuits between each power terminal and the ground.
B
No Power When Powered On
#5,6,7(3V3STB) at JP35 in Main Assy
NG
Check Power supply unit & the short circuit between 3V3STB and GND
#3(5VSTB) at JP36 In Main Assy Waveform 1 #9,11(M_SDA/SCL) at J1(When power on) In Main Assy
NG
Check Power supply unit & the short circuit between 5VSTB and GND
NG
Check Power supply unit & Panel Module
C
Check 1V8VDD 2V5VDDLine at U47,48 In Main Assy Waveform 2 The signal waveform of Y1 in Main Assy NG Check the power of +3V3_PLL and replace the part of Y3 NG Check the state of soldering in U47, U48 and related components.
D
Check the other Power of Power supply unit (A+12V,+6.5V,5V,+16.5V)
NG
Check for short circuits between each power terminal and the ground
