Samsung HPR4272CX/XAC Service Manual page 95

13-2-6 Main SMPS
(1) CN800: AC IN (110V)
(2)
CN804-1(MAIN SMPS)
↔
CN1002(MAIN B'D)
Pin No Signal
FAN-D
1 ■
2 FAN-ON
3 STB5V
4 RTN
5 PS-ON
6 12V
7 RTN
8 RTN
9 VCA
10 VCS
11 RTN
12 5.3V
※ CN811, CN806, CN807 and CN808 are not used.
Samsung Electronics
(3)
CN803(MAIN SMPS) CN810(Main SMPS)
↔
CN1001(MAIN B'D) CN2004(Logic B'D)
Pin No Signal Pin No
1 ■ RTN 1 ■
2 VT(33V)
3 RTN_AMP
4 RTN_AMP
5 18V_AMP
6 18V_AMP
7 RTN
8 12V
9 RTN
10 6V
(4)
CN809(Main SMPS)
↔
CN3(DC-DC SMPS)
Signal Pin No
5.3V 1 ■
2 5.3V 2
3 RTN 3
4 RTN 4
5 5.3V 5
6 RTN 6
7 PS-ON 7
8 N.C 8
9 VS-ON 9
10 STB 5V 10
11
12
Circuit Description
(5)
↔
Signal
5.3V
Vg
RTN
RTN
RTN
RTN
RTN
Va
Va
N.C
Vs
Vs
13-5