Philips 32PFS5709/12 Service Manual page 69

7.2.1 Power Supply Unit
All power supplies are a black box for Service. When defective,
a new panel must be ordered and the defective one must be
returned, unless the main fuse of the panel 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
panels.
Important delta's with the TPM14.2E LA classis platform are:
• New power architecture for LED backlight
• "Boost"-signal is now a PWM-signal + continuous variable.
The control signals are:
• Stand-by
• Lamp "on/off"
• DIM (PWM) (not for PSDL)
In this manual, no detailed information is available because of
design protection issues.
The output voltages to the chassis are:
• +4V7-STANDBY (Stand-by mode only)
• +12V (on-mode)
• +Vsnd (+24V) (audio power) (on-mode)
• +12V (bolt-on power) (on-mode)
• +12V (stanby:8.5V Output;on-mode:12V Output)
• +12_audio(+12V) (audio power) (on-mode)
32"
Number CN9101 CN8501
Descriptio
n to SSB to panel
Pin 14 6
1 DIM VLED+
2 ON/OFF VLED+
3 n.c. n.c.
4 n.c. n.c.
5 GND VLED-
6 GND VLED-
7 GND -
8 GND -
9 +12V_audio -
10 +12V_audio -
11 +12V -
12 +12V -
13 +12V -
14 +12V -
40" 6900 series
Number CN9301
Description to SSB
Pin 16
1 DIM
2 ON/OFF
3 PS_ON
4 2D/3D
5 GND
6 GND
7 GND
8 GND
9 +12V_AUDIO
10 +12V_AUDIO
11 +12V
12 +12V
13 +12V
14 +12V
15 +3.3V(option） -
16 +3.3V(option） -
40" 6800 series 40"
CN9301 CN9101 CN9101
to SSB to panel to SSB
14 14 14
DIM DIM DIM
ON/OFF n.c. ON/OFF
PS_ON ON/OFF PS_ON
n.c. n.c. 2D/3D
GND GND GND
GND GND GND
GND GND GND
GND GND GND
+12V_AUDIO GND +12V_AL VLED2-
+12V_AUDIO +24LED +12V_AL VLED2-
+12V +24VA +12V_AL n.c.
+12V +24VA +12V_AL VLED2+
+12V +24VA +12V_AL -
+12V +24VA +12V_AL -
Connector
48"& 55" 6900 series
CN8101 CN9100 CN8601
to panel to SSB to panel
7 16 7
VLED- DIM VLED-
VLED- BL_ON.OFF VLED-
n.c. PS_ON n.c.
n.c. 3D_ON n.c.
n.c. 24/36V n.c.
VLED- GND VLED-
VLED- GND VLED-
- GND -
- +12V_A -
- +12V_A -
- +12V -
- +12V -
- +12V -
- +12V -
+5V(option) -
+5V(option) -
Circuit Descriptions
• Output to the display; in case of
- IPB: High voltage to the LCD panel
- PSL and PSLS (LED-driver outputs)
- PSDL (high frequent) AC-current.
7.2.2 Diversity
The diversity in power supply units is mainly determined by the
diversity in displays.
The following displays can be distinguished:
• CCFL/EEFL backlight: power panel is conventional IPB
• LED backlight:
- side-view LED without scanning: PSL power panel
- side-view LED with scanning: PSLS power panel
- direct-view LED without 2D-dimming: PSL power panel
- direct-view LED with 2D-dimming: PSDL power panel.
PSL stands for Power Supply with integrated LED-drivers.
PSLS stands for a Power Supply with integrated LED-drivers
with added Scanning functionality (added microcontroller).
PSDL stands for a Power Supply for Direct-view LED backlight
with 2D-dimming.
7.2.3 Connector overview
Table 7-1 Connector overview
Connector
42" & 47"& 55" 48"
CN8101 CN8101 CN9301 CN8101
to panel to panel to SSB to panel
12 12 14 12
LED1+ VLED+ DIM VLED+
n.c. n.c. ON/OFF n.c.
LED1- VLED_1 PS_ON VLED_1
LED1- VLED_1 2D/3D VLED_1
n.c. n.c. GND n.c.
n.c. n.c. GND n.c.
n.c. n.c. GND n.c.
n.c. n.c. GND n.c.
VLED_2 +12V_audio VLED_2
VLED_2 +12V_audio VLED_2
n.c. +12V n.c.
VLED+ +12V VLED+
- +12V -
- +12V -
7.3 DC/DC Converters
The on-board DC/DC converters deliver the following voltages
(depending on set execution):
• +5V-STANDBY, permanent voltage for the Stand-by
controller, LED/IR receiver and controls
• +12V, input from the power supply for the panel common
(active mode)
• +12V, input from the power supply for audio amplifier
• +1V2, core voltage supply for MT5591
• +1V5, supply voltage for DDR2 (diagram B03B)
• +3V3, general supply voltage
• +5V, supply voltage for USB and CAM
• +3V3-TUN, supply voltage for tuner
• +5V-USB, input intermediate supply voltage for USB
• +3V3 from the power supply for the scaler IC MT5591
• +12V input from the Power supply for the Ambilight
common.
• +3V3-DVBS, clean voltage for DVB-S2 channel decoder.
• +1V2-DVBS, core voltage for DVB-S2 channel decoder.
Figures gives a graphical representation of the DC/DC
converters with its current consumptions:
back to
div. table
TPM14.2E LA 7.
58"6800 series 65" 6600 & 7500 series
CN9301 CN9301 CN9101 CN9301
to SSB to SSB to panel to SSB
14 14
14 14
DIM DIM DIM DIM
ON/OFF ON/OFF n.c. ON/OFF
PS_ON PS_ON ON/OFF PS_ON
2D/3D 2D/3D n.c. 2D/3D
GND GND GND GND
GND GND GND GND
GND GND GND GND
GND GND GND GND
+12V +12V GND +12V
+12V +12V +24LED +12V
+12V +12V +24VA +12V
+12V +12V +24VA +12V
+12V +12V +24VA +12V
+12V +12V +24VA +12V
EN 69
CN8102
to panel
12
VLED+
n.c.
VLED_1
VLED_1
VLED_1.
n.c.
n.c.
VLED_2
VLED_2
VLED_2
n.c.
VLED+
-
-
2014-Sep-26