Dc-Dc Smps Board - Samsung PL-42P7HP Service Manual

PCB Diagram

9-6 DC-DC SMPS Board

①
CN809(Main SMPS)
↔
CN3(DC-DC SMPS)
Pin No. Signal Pin No.
1 5.3V
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
9-6
②
CN2(DC-DC SMPS) CN4(DC-DC SMPS)
↔
CN5007(Y SMPS) CN4001(X SMPS)
Signal Pin No.
1 5.3V 1
2 Vg 2
3 RTN 3
4 Vscan 4
5 RTN 5
6 Vset 6
7 RTN 7
8 RTN 8
9 Vs 9
10 Vs
④ CN1 : N/A
③
⑤ CN5(DC-DC SMPS)
↔
↔
CN2509(E-Buffer)
Signal
Pin No.
Vs 1
2
Vs
3
RTN
4
RTN
5
Ve
RTN
RTN
Vg
5.3V
Signal
RTN
N/C
5.3V
N/C
Va
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