No Raster - Mitsubishi Diamond Plus 93SB Service Manual

5. NO RASTER

NO RASTER
YES
CHECK
B+
YES
CHECK
U501 PIN 14, 15
H/V SYNC
YES
CHECK
U701 PIN 35, PIN 2 IS
LOW
YES
CHECK
U501 PIN 6, 8
BDRY, HDRY
YES
CHECK
Q504 DRAIN ABOUT
180Vp-p fH=93KHz
YES
CHECK
Q314 COLLECT PULSE
1000Vp-p
YES
Next page
NO
NO
NO
CHECK ISCL, ISDC
NO
NO
NO
6-6
POWER SUPPLY
CHECK
PROBLEM IN
MCU U701
TROUBLE
YES
IN U501
TROUBLE IN
D505, T501, Q504,
R525, Q502, Q503
TROUBLE IN
Q314, Q313, D317, T304