2. NO OPERATION, POWER LED OFF
1. DC P/S O/P VOLTAGE SET AT 17V,CURRENT SET
AT 200MA. POSITIVE CONNECT TO C112”+”.
NEGATIVE CONNECT TO C105”-“.
2. SCOPE SET AT 10V/DIV, 10US/DIV, PROBE
CONNECT TO Q101-GATE AND C105”-“.
POWER SW
TURN OFF
CHECK
F101
CHECK
Q101
CHECK
U101
U101 PIN6
PULSE O/P
POWER SW
TURN ON
FAILURE
R111, ZD101
CHECK
U101 PIN 7 VCC
PIN 4 SAWTOOTH
PIN 8 5V
NO
33
Summary of Contents for MultiSync V520
Page 9: ...6 MultiSync MV521 Diamand Scan 51...
Page 71: ...11 Monolithic triple 13 5nS CRT driver 68...
Page 72: ...69...
Page 73: ...70...
Page 74: ...71...
Page 103: ...95 SCHEMATIC DIAGRAMS 1 Video Board...
Page 104: ...96 2 Main Board...