Samsung HP-R5052 Service Manual page 101

13-2-7 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
(4), (5)
CN1, CN5 CN2(DC-DC SMPS)
(DC-DC SMPS)
↔ CN5007(Y B'D)
↔
Pin No
CN2501(E-Buffer),
1 ■
CN2701(G-Buffer)
Pin No Signal
RTN
1 ■
2 N.C
3 5.3V
4 N.C
5 Va
10
(2)
CN4(DC-DC SMPS)
↔ CN4000(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
13-9