Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung LCD TV LE37S73BD 10_Wiring Diagram
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8 Wiring Diagrams
8 Wiring Diagram
8-1 LE27S73BD/LE32S73BD/LE37S73BD/LE40S73BD Wiring Diagram
8-1
8 Wiring Diagrams
8-2 Main Board Layout
CN4004 30PIN CN5002 34PIN CN5003 34PIN
LVDS JACK DTV Module Connector
MAIN AMP
CONTROL
CN402
MICOM
PANEL
SOUND BLOCK
STV 8257
POWER SUPPLY
CN10016PIN
SVP-PX56
BLOCK
TUNER
SUB BLOCK
MICOM
CN5001 15PIN CN1002 CN1003 CN2002_32
JA714_OP JA712_OP JA717_OP
Option 26" Function SPEAKER JACK CONTROL
8-2
8 Wiring Diagrams
8-3 PIN characteristic
CN1001 - Main Board power supply
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
NAME B12V GND B5V B5V B5V GND GND GND B12VS B12VS B12VS GND GND GND A5V A5V
Function Define
- 12V B5V_VCCA, B5V_VCCB, IC611 POWER SUPPERLY
- 5V B5V, B3.3V, B2.5V_VDD, B3.3VD, VCC50
- 12VS B12VS
CN1002 / CN1003 - SPEAKER CONNECTOR
PIN 1 2 3 PIN 1 2
NAME R-OUT NOP R-REFERENCE NAME L-OUT L-REFERENCE
8-3
8 Wiring Diagrams
CN5001 - Front control
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
NAME GND GND A5V - KEY KEY GND - IR - LED_ LED_ GND SDA SCL
INPUT1 INPUT2 GREEN LED
Function Define
- A5V Front control board poewr supply
- KEY INPUT1,2/SDA/SCL Key control, from the memu, change up/down Etc.
- IR Remote control signal
- LED_GREEN/LED_RED Control the timing and stand by LED color
CN4002 - Panel control
PIN 1 2 3 4 5
NAME SW_inverter Ana_dimming PWM_dimming GND SENSOR POWER
Function Define
- SW_inverter panel inverter control, about 5V
- Ana_dimming panel dimming control
- PWM_dimming panel PWM control, duty 40% ~ 90%
- SENSOR POWER brightness sensor power supply
8-4
8 Wiring Diagrams
CN4004 - LVDS Signal
PIN NAME PIN NAME
1 VCC 16 TXOUTCLK +
2 VCC5P 17 TXOUTCLK -
3 VCC5P 18 GND
4 VCC5P 19 TXOUT2 +
5 VCC5P 20 TXOUT2 -
6 GND 21 GND
7 GND 22 TXOUT1 +
8 NOP (NOT USE) 23 TXOUT1 -
9 SDA 1 24 GND
10 SCL 1 25 TXOUT0 +
11 PANEL_SYNC_EN 26 TXOUT0 -
12 GND 27 GND
13 TXOUT3 + 28 SW_INVERTER
14 TXOUT3 - 29 ANA_DIMMING
15 GND 30 PWM_DIMMING
8-5
8 Wiring Diagrams
8-4 Power Board Layout
CNI802 14PIN CNI801 14PIN
CNB806 LAMP power supply
AC input
LAMP power inverter
4 Multi
Line filter
1 5
Main Board
Power supply
3
PFC
Stand By Power factor correction
(IC control)
2
Main Board Panel
Stand by Power supply Control
CNB811 CNM801 14PIN CNI804
8-6
8 Wiring Diagrams
CNB811 - Stand by supply
PIN I 2 3
NAME Live Netural SW_POWER
VOLTAGE AC AC ON/OFF
Functing Define
- Refer to : CN802 function define
CNM801 - Main Board power supply
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14
NAME 12V GND 5V 5V 5V GND GND GND 12V 12V 12V GND GND GND
Functing Define
- Refer to : CN801 function define
CNM804 - Panel control
PIN 1 2 3 4 5
NAME SW_inverter Ana_dimming PWM_dimming GND SENSOR POWER
Functing Define
- Refer to : CN815 function define
8-7
8 Wiring Diagrams
CN801 - Main Board power supply
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14
NAME 24V 24V 24V 24V 24V GND GND GND GND GND GND B/L A_D P_D
Functing Define
- 24V LAMP INVERTER Voltage
- B/L Brightness sensor power
- A_D ANA_DIMMING
- P_D PWM_DIMMING
8-8
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