Service Manuals, User Guides, Schematic Diagrams or docs for : Samsung LCD TV LE26R71B 14_Wiring Diagram
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8 Wiring Diagrams
8 Wiring Diagram
8-1 LE26R71B/LE32R71B/LE40R71B/LE26R72B/LE32R72B/LE37R72B/LE40R72B Wiring Diagram
8-1
8 Wiring Diagrams
8-2 Main Board Layout
8-2
8 Wiring Diagrams
8-3 PIN characteristic
CN800 - 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
- B12V B8V, B5V-T
- B5V B5V-1, B5V, 5V-P, B1.8V
- B12VS B12VS
- A5V A5V, A3.3V-3, A3.3V, A3.3V-1, B3.3V, A1.8V
CN600 / CN601 - SPEAKER CONNECTOR
PIN 1 2 3 PIN 1 2
NAME R+ NC R- NAME L+ L-
8-3
8 Wiring Diagrams
CN221 - Front control
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
NAME SDA-T SCL-T GND KEY LED GND A5V GND IR KEY KEY GND IDENT HP-L HP-R
INPUT1 INPUT1 INPUT2 HP
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 Control the timing and stand by LED color
CN501 - Panel control
PIN 1 2 3 4 5
NAME SW_inverter Ana_dimming PWM_dimming GND GND
Function Define
- SW_inverter panel inverter control, about 3.3V
- Ana_dimming panel dimming control
- PWM_dimming panel PWM control, duty 40% ~ 90%
8-4
8 Wiring Diagrams
8-5
8 Wiring Diagrams
8-4 Power Board Layout
8-6
8 Wiring Diagrams
CN801 - AC Input
PIN I 2
NAME Live Netural
VOLTAGE AC AC
Functing Define
- Refer to : AC Input
CN801 - Main Board power supply
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
NAME 13V GND 5.4V 5.4V 5.4V GND GND GND 12V 12V 12V GND GND GND ST7V PWR
Functing Define
- ST7V Stand-By Output
- PWR Power On/Off Control
- 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
CN802 - Inverter 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
- AMLCD Panel Inverter Power
- 24V LAMP INVERTER Voltage
- B/L Brightness sensor power
- A_D ANA_DIMMING
- P_D PWM_DIMMING
CN803 - Inverter 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 A_D B/L P_D GND
Functing Define
- AUO Panel Inverter Power
- 24V LAMP INVERTER Voltage
- B/L Brightness sensor power
- A_D ANA_DIMMING
- P_D PWM_DIMMING
8-8
8 Wiring Diagrams
8-9
8 Wiring Diagrams
CN801 - AC Input
PIN I 2
NAME Live Netural
VOLTAGE AC AC
Functing Define
- Refer to : AC Input
CN801 - Main Board power supply
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
NAME 13V GND 5.4V 5.4V 5.4V GND GND GND 12V 12V 12V GND GND GND ST7V PWR
Functing Define
- ST7V Stand-By Output
- PWR Power On/Off Control
- 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
8-10
8 Wiring Diagrams
CN803 - Inverter 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
- AMLCD Panel Inverter Power
- 24V LAMP INVERTER Voltage
- B/L Brightness sensor power
- A_D ANA_DIMMING
- P_D PWM_DIMMING
CN804 - Inverter 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 B/D P_L GND B/L
Functing Define
- CMO Panel Inverter Power
- 24V LAMP INVERTER Voltage
- B/L Brightness sensor power
- P_D PWM_DIMMING
8-11
8 Wiring Diagrams
Memo
8-12
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