Secondary Voltages - Sony CPD-420GS Training Manual

Secondary Voltages

The following voltages are produced by T601 SRT.
1. The output at T601/13 is rectified by D650 to produce +183V DC used
for deflection and video circuits.
2. The output at T601/14 is rectified by D651 to produce +80V DC used
for video circuits.
3. The output at T601/16 is rectified by D652 and D655 to produce +16V
DC and +16V-2 DC used for deflection, +5/+12V Regulator IC605.
4. The output at T601/17 is rectified by D654 to produce +7V DC used
for +5/+12V Regulator IC605 and +6.3V Heater regulator IC604.
SECONDARY VOLTAGES
OUTPUT OFF 'Active OFF'
B+ 0 +145V
+80V 0
+16V 0
-16V 0
+12V 0
+8V 0 +5.5V
+5V 0
Heaters 0
H. Centering 0
15
5. The output at T601/18 is rectified by D653 and D656 to produce -16V
DC and -16V-2 DC used for the deflection circuits.
6. The output at T601/10 through R621 is rectified by D648 to produce
the H+ used for Horizontal Centering.
· The output at T601/12 through R622 is rectified by D649 to produce
the H- used for Horizontal Centering.
· The output at T601/11 is used for the H+ and H- floating ground refer-
ence. The H+ and H- voltages in reference to floating ground are
±8V.
NOTE: Care should be taken not to short the floating ground to the sec-
ondary ground.
'Suspend/Standby'
+145V
+62V +62V
+9V +9V
-12V -12V
0 0
+5.5V
+5V +5V
0 +3.2V
± 5V ± 5V
'Active ON'
+183V
+80V
+16V
-16V
+12V
+7V
+5V
+6.3V
± 8V