Samsung HPR4272X/XAC Service Manual page 101

13-2-8 DC-DC SMPS
(1)
CN809(Main SMPS)
↔
CN3(DC-DC SMPS)
Pin No Signal
5.3V
1 ■
2 Vg
3 RTN
4 RTN
5 RTN
6 RTN
7 RTN
8 Va
9 Va
10 N.C
11 Vs
12 Vs
(6) D5.3V, Vg, Ve Test Point
(7) Va, Vset, Vscan Test Point
Samsung Electronics
(DC-DC SMPS)
(4) CN1 - N/A CN2(DC-DC SMPS)
(5) CN5
↔ CN5003(Y B'D)
↔ CN2601(F-Buffer)
Pin No
Pin No Signal
1 ■
RTN
1 ■
2 N.C
3 5.3V
4 N.C
5 Va
10
(2)
CN4(DC-DC SMPS)
↔ CN4004(X B'D)
Signal Pin No
Vs
1 ■
2 Vs 2
3 RTN 3
4 RTN 4
5 Vset 5
6 RTN 6
7 Vscan 7
8 RTN 8
9 Vg 9
5.3V
Circuit Description
(3)
Signal
Vs
Vs
RTN
RTN
Ve
RTN
RTN
Vg
5.3V
13-13