32PD3000 / 42PD3000
27
Schematic Page 4 ; Power Circuit (Voltage Regulator) / Level Shifter
Power supply connector PSP from Power Supply board
1 POWER1 Power ON/Stand-by control H;ON, L;Stand-by
2 N.C.
3 N.C.
4 N.C.
5 +5VSTB Stand-by 5V for micro controller circuit
6 GND
7 N.C.
8 N.C.
9 GND
10 GND
11 +5.5V1 5.5V supply 1
12 GND
13 +9.5V1 9.5V supply 1
14 GND
15 +5.5V2 5.5V supply 2
16 GND
17 +9.5V2 9.5V supply2
18 GND
19 FE+30V 30V supply for tuner
Voltage regulators
I603
BA06T Input +9.5V2 - Output +8V
For video chroma circuit (page1)
IC602
SI-3050LSA Input +5.5V1 - Output +5VFE
For tuner (page1)
IC603
SI-3050LSA Input +5.5V2 - Output +5V
For audio processor circuit (page2), comb filter (page6)
IC601
SI-3033LSA Input +5VSTB - Output 3.3VSTB
For micro controller circuit
Q602
TK11125M Input +5VSTB - Output 2.5VSTB
For micro controller circuit
IC604
BA09FP Input +9.5V1 - Output +9V
For interface circuit (page 3)
Level shift for control buses
Q607
BSS138 3WB-DATA to change from 3V3 to 5V
Q603
2SC2412K 3WB-CLOCK to invert with 5V range
Q604
2SC2412K FC-ENABLE to invert with 5V range
Q605
2SC2412K MSC-ENABLE to invert with 5V range
Q614
BSS138 1900TX to change from 3V3 to 5V