5. NO RASTER
CHECK
U301 PIN 3, U402 PIN 4
H/V SYNC
NO RASTER
POWER SUPPLY
CHECK
CHECK
B+
CHECK
U301 PIN 7, U402 PIN 23,24
H/V SYNC
CHECK
T301 PIN 3 VOLTAGE
56V, 68V(AT H-FREQ.
31.5KHz)
PROBLEM IN
MCU U701
PROBLEM IN
U301, U402
PROBLEM IN
U102,Q102,D114,D111,L102
OR DEFLECTION YOKE
PROBLEM IN
Q307, Q308,T302, D307,
D308, Q309, Q325
CHECK Q307
COLLECTOR ABOUT
1050Vp-p
CHECK G1
VOLTAGE ABOUT
-45~65V
PROBLEM IN
Q305, Q306, ZD303
D318, T301, C344
PROBLEM IN
G2 VOLTAGE
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
NO
36
Содержание Diamand Scan 71
Страница 9: ... 6 Diamand Scan 71 ...
Страница 70: ...10 Monolithic triple 13 5nS CRT driver 67 ...
Страница 71: ...68 ...
Страница 72: ...69 ...
Страница 73: ...70 ...
Страница 102: ...99 SCHEMATIC DIAGRAMS 1 Video Board ...
Страница 103: ...100 2 Main Board ...