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Troubleshooting
1. Power Line-Up of Media Station's Main Board
STB SMPS
12V
33V
6VA
6VA
5V-STB
S-15V
6-8
1 No.
12V
2 No.
GND
3 No.
33V
4 No.
Power Mute
5 No.
GND
6 No.
S-15V
7 No.
GND
9V
9V Regulator
(78M09, IQ031)
8V
8V Regulator
(78MO, IQ032)
12V
33V
5VA
5V Regulator
(78D05, IQ033)
5V-VFD
5V Regulator
(78D05, IQ033)
2.5VD
2.5V Regulator
(LF25C, IQ035)
3.3VD
3.3V Regulator
(1086, IQ036)
5VD
2.5V-STB
2.5V Regulator
(LF25C, IQ039)
3.3V-STB
3.3 Regulator
(78RH33, IQ038)
5V-STB
14V
14V Regulator
KA278RA05, IQ037)
8 No.
GND
9 No.
5VD
10 No.
GND
11 No.
6VA
12 No.
Power-Control
13 No.
GND
14 No.
5V-STB
IC131(TEA6415), ICS201(TEA6422)
IC132(TEA6425), ICS201(TEA3452),
ICS421(TEA6425), ICS441(TEA6425).
ICS461(TEA6425)
IC202(TL062), IC203(TL062), IC204(TL062)
T101(Main Tuner), TU102(Sub Tuner)
IC201(MSP3452), IC205(TDA7050),
ICS481(74VHC4053), ICB401(PCF8574)
IC401(CXA2151AQ)
TO. VFD MODULE(BY CN806)
IC201(MSP3452), IC301(SDA6001).
IC302(M27160), IC302(4S641632)
IC301(SDA6001), IC501(VPC3230),
IC551(VPC3230), IC601(FLI2200),
IC03(4S643232), ICB602(CY2305),
IC651(AD9888), IC654(74LVX74),
IC653(74LCX374), IC701(SIL151B),
IC001(MN82860), ICT051(SIL160)
ICS621(QS34XR245Q3), ICS671(QS34XR245Q3)
IC801(PW166)
IC801(PW166), IC802(24C64),
IC921(29LV160), IC971(PCF8563)
IC803(MAX232), IC805(74LCX14),
IC804(7042), ICE051(S3P9428), ICE052(7042)
To. Sound Module(M201)
*CNP031
(14P Connector)
Samsung Electronics
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