Philips S37SD-YD02 Service Manual page 44

EN 44 6.
6.2 PSU Board diagram
6.2.1 PSU 37" SD v4
SX
D5VL
VG
GND
Vscan
GND
Vset
GND
GND
VS
VS
CN8003
VA
D5VL
GND
CN8005
VR8002
VSCAN
CN8004
8V_STBY
VA
GND
HIC8003
VSCAN
+8.8 V
D5VL
GND
V9
+5.2V
VE
GND
VSET
+12V
VG
GND
+8.6V
POWER_OK + 6.2V
5V_Relay
+12V
GND
D3V3
STANDBY
GND
VA8003
AC_DET
DC_PR07
POWER_OK
DC_PR07
PIRO
PIRO
GND
GND
GND
PFC_OK
GND
GND
+6V2
THEM_SEN
+5V2
CN8007
A5SY CODE
LJ44-00084A
Table 6-1 Adjustment voltage level overview
No Output voltage (V)
2 VS
3 VA
4 VE
5 VSET
6 VSCAN
7 D5VL
8 D3V3
9 VCC
10 5V2
11 9V_Standby
Check voltage label on the PDP for correct values.
SDI PDP Block Diagrams, Test Point Overview, and Waveforms
V5
VR8005
VR8009
VG
VA8008
VR8004 VR8006
VSET
D5VL
VA
VE
D5VL D3V3
GND
CN8006
SERIAL NO.
Voltage Setting (Nominal Load)
170 V
70V
180 V
173 V
-160 V
5.2 V
3.3 V
15 V
5.4 V
8.5 V ~ 9.5 V
HOT(LIVE)
CN8008 0V
VPFC
VA8007
L D8001
L D8004
D3V3
+5V2
Vedj L D8003
Vuo
Figure 6-9 PSU layout
Output Voltage Variable Point
160 V ~ 185 V
60 V ~ 80 V
165 V ~ 195 V
160 V ~ 180 V
-145 V ~ -175 V
5.0 V ~ 6.0 V
2.8 V ~ 3.8 V
Fixed
4.5 V ~ 5.6 V
Fixed
VPFC
VR8001
PBA Flev
A B C D E F G H I
1 2 3 4 5 6 7 8 9
N AC INPUT L
100-240V ~ 50/60Hz 6.3 A
PS-374-PH 20040420 ED05