6.
Block Diagrams, Testpoint Overviews, and Waveforms
Test Points and Waveforms IBO Zapper
F_15740_025.eps
201005
+12V (11.7V) 1 of 1534
+12VA (11.7V) 2 of 1004
On bottom side
On bottom side
7600
7700
7100
1600
General RESET
Tuner I2C bus (pin 8 & 9 of 1600)
5V , no command
3625-3629
Local I2C bus
idem bus TV
+5V 2-7307
+5Vclean 2-7308
+1V2 MOJO 5101-5102
+1V8FE 2-7302
+3V3 S-7311
IRQ 4 of 1206
5V; start with 0V
after command
FE_LOCK 3621
3.1V fixed ;
0V without reception