Philips 8601 Series Service Manual page 39

7.2 Power Supply
7.2.1 Power Supply Unit
All power supplies are a black box for Service. When defective,
a new board must be ordered and the defective one must be
returned, unless the main fuse of the board is broken. Always
replace a defective fuse with one with the correct
specifications! This part is available in the regular market.
Consult the Philips Service web portal for the order codes of the
boards.
The control signals are:
• Power On (PSU On/Off)
• Backlight On/Off (BL_On/Off)
• DIM (PWM-1 to PWM-4)
• Boost = analog dimming (also PWM), to set the
LED-current.
Three modes of operation:
• Standby
• Semi-Standby
• On
For output voltages to chassis refer to following Table:
Table 7-1 PSU Output Voltages
Voltage Testpoint
+3V5-Standby F003U
+3V3-Standby F004U
+12V F009U
Power Architecture MTK 2k15 - Connector from PSU
CN1190
+3V5-STANDBY
+12V
+12V-AMBI
+12V
Motor
CN1112 connector
+3V5-STANDBY
D4300
+3V3-STANDBY
+3V3 +3V3-STANDBY
+5V-SW
(provision for
(provision
voice wake up)
for TPV)
3D emitter
Skype
CN1108 connector
Figure 7-3 Power PSU Connector
Circuit Descriptions
Voltage
+12V-AL
+5V-SW
1V2-MTK
1V5-MTK
3V3
1V0-HDMI
1V1-DVBT2
3V3-DVBT
V-LNB
3V3-LAN
1V0-M
1V5-M
2V5-M
3V3-NVT
3V3-BE
1V8
1V2
1V3-HDMI
Note
In this manual, no detailed information is available because of
design protection issues. Refer to GSC in Philips for Servicers
for Electrical diagrams.
7.2.2 Power Architecture
For the power architecture:
• PSU Connector, refer to Figure
• PSU Front End, refer to Figure
• PSU Back End, refer to Figure
+3V3
D4303
+12V-AMBI
+3V3-STANDBY
+12V
U4404 or U4405
IR sensor
Standby Led
+
Word mark
AL + Keyboard
CIP
CN1106 connector
back to
div.table
QM15.1E LA
Testpoint
F001U
F005U
F040U
F006U
F008U
F123C
I002F
F004F
F012F
F027U
I057B
F021B
F023B
F022B
7-3
9.5
9.4
SIP32429DN-T1-GE4
or AOZ1360DIL5
F8203
Over
+3V3
(2 sides AL)
current
protection
U9416
AMBI-POWER
Wifi + Bluetooth
CN1110 connector
7. EN 39
and Figure 9.4.
+3V5-SB
WIFI-PWR-EN
TPS61230
DRCR
+3V3-WIFI
19800_034_151117.eps
15-11-21
2016-May-09