The archive shows the circuit of a PTS receivers Humax F1 series
1) Linear power supply
2) Clock generator for TDA8043 (TDA8044)
3) TS-Interface
4) Surge Protectors
5) QPSK-demodulyator
6) Keys voltage 7.5 V, 5 V and 3.3 V
7) The ACK signal generator
8) CI-Interface 1
9) CI-Interface 2
11) FLASH-Memory
12) RAM (SDRAM)
13) The stabilizer 5V controller signals STBY and PWRON
14) Interface SMART-Map 1
15) Interface SMART-Card 2
16) Modem Interface
17) The controller front panel
18) The decoder MPEG-2
19) Video encoder "digital / analog"
20) The DAC beeps
21) RF modulator
22) Video / audio matrix CXA1855Q
23) SCART Interface
24) Serial interface for connection to PC
25) Video / audio matrix STV6411AD
26) Interface nodes front and back panels