First of all I must say that I received the manual in just a few minutes after placing the order. The copy is well done and very readable. I will buy others soon... Thanks, Meyer
Text excerpt from page 18 (click to view)
No SW_12VG
YES
No SW_FD(+)
YES
Is the VCC (14V) supplied to Q165 Collector?
YES
NO
Check D124 on SMPS Board and Replace
Is the VCC (FD+) supNO plied to Q163 Collector ?
YES
Check D121 on SMPS Board and Replace
Is there about 12.5V at NO ZD152 & Q165 Base?
YES
Check Q165 and Replace
Is there about 5.3V at R184 and Q153 Collector ?
YES
NO
Check Q163 and Replace
Is the VCC (33V) sup- NO plied to Q160 Emitor?
YES
Check D126 on SMPS Board and Replace
Is the VCC (5.3V) supplied to Q153 Emitor ?
YES
NO
Check 5.3VA on SMPS Board
Is there about 0V at NO Q160 Base?
YES
Check Q160 and Replace
Is there about 0V at Q153 Base ?
YES
NO
Check the �STANBY H� signal from µ-COM
Is there about 5.3V NO at Q166 Base?
YES
Check SW_5.3VA
Check Q153 and Replace
Check Q166 and Replace
No 1.8V
YES
No 1.25V
YES
Is the VCC (3.3V) supplied to Q159 NO Emitor And IC154 pin 1,2,8 ?
YES
Check 3.3V power supply
Is the VCC (2V) supplied NO to Q154 Emitor ?
YES
Check D155 and 2.5V power supply
Is there about 3V ~ 3.3V at Q159 Base and IC154 pin 3 ?
YES
NO
Check Q159 and Replace
Is there about 2V ~ 2.5V at Q154 Base and IC154 pin 4?
YES
NO
Check Q159 and Replace
Check IC154 and Replace
Is the VCC (3.3V) sup- NO plied IC154 pin 1,2,8 ?
YES
