X1000100Mhz

32LC50C INTERCONNECT DIAGRAM

J3

J1

Power Supply

Main (Digital) Board

T-CON Board

Front PWB Assembly(Interface)

Side (Key) Controls

P400

P201

F200

F100SK101

LN 6.3A / 250V

A/C Fuse

IR ReceiverPower Button

To Speakers

P101

Reset

63V/2A

J3 J4

TO TFT MODULE

SMPS TEST 1: To Force Power Supply On.

Disconnect P1100 and P1101 on Main PWB.Jump pin 2 to pin 3 thru a 10K Ohm resistor. As seen in the image to the left. This should force the SMPS to the on state. All Voltages should be produced. (6V, 19V, 12V)

SMPS TEST 2:To force the ballast on short pin 5 to pin 8 thru a 100 Ohm resistor.

LVDS

IC11091 (3.3V)2 (3.3V)3 (GND)4 (1.2V)5 (2.6V)

IC506

Warning:T-Con PWB under shield. Be sure to reinsert

screws before operating set with shield removed.

UC1

D1

L3

U4 1) 0V2) 1.8V3) 3.3V

P204 "SMPS" to CN1 "Inverter PWB"

12V to T-CON Pin 1, 2, 3, 4.

To Back lights

F1 (12V)

TO TFT MODULE

CN5

15.7V

LD200P1204

TUNER

P600

P206N/C

P204

LD201IC302

IC1000

IC202

T2T2

T2T2

T2T2

Pin 28-31 = 12V to TCON

P1200

P500

P1101 P1100

P202P203N/CP201 “SMPS” to P1100 "Main PWB"

P202 “SMPS” to P1101 "Main PWB"

X90127Mhz

X30027Mhz

X50119.6Mhz

X20027Mhz

P401IC400

IC1109 IC1108

IC11081 (2.6V)2 (2.6V)3 (GND)4 (1.2V)5 (1.3V)

IC11141 (2.6V)2 (5.0V)3 (GND)4 (3.3V)5 (1.2V)

IC1114

To Side A/V

To Adapter PWB

To Back lights

To Back lights

To Back lights

To Back lights

To Back lights

Pin Label STBY Run Diode Check1,2,3,4,5 24V 0V 24V 0.86V6,7,8,9,10 Gnd Gnd Gnd

11 BRI 0V Open12 5.1V13 (PWM) DIM 3.3V14 ERROR 2.3V

0V0V0V

0V

OpenOpenOpen

CN1

63V 8A

Pin Label STBY Run Diode Check1 5.1V2 1.6V345

5.0V

6I-C (Inv-On)

2.3V7

Gnd

0V Open8

Gnd

Open9

5.0V

10 0V 3.3V11 0.3V 6.1V12

4.18V 1.8V

1.6V

OpenOpen

OpenOpen

13

ADC (AC Det)

0V 1.9V 1.1V

(PWR) On/OffSTBY 5V

ErrI-B (BRI)STBY 5V

Gnd(PWM) DIM

6V

3.4_ON

2.7V

5.1V

0V5.1V

0V0V0V5.1V

Pin Label STBY Run Diode Check1 12V 11.8V 12.3V2

MPI-DOUT2.2V3

45 SPI-DOUT6

SPI-CLOCK7Gnd85V9

10 4.9V

Open

1.28V

1.2V

.5VOpen

MPI-DIN

SPI-DIN

IR-DOUT

Gnd2.77V

0V5.0V5.0V

1.8V

1.2V

P1200 ‘Main PWB” to P1201 "Adapter PWB"

11 0V OpenSpare

5.0V

5.0V4.9V

2.77V0V

5.0V5.0V

0V

5.0V

5.0V

IC1200

Pin Label STBY Run Diode Check1 LED-R 3.2V2

0.5V30V

45 TX6

KEY27Gnd8KEY19

10

Open0V

2.9V

1.3V

1.3V

ST5VLED-O

5.0V

4.7V

P1204 ‘MainPWB” to J1 "IR / Key PWB"

3.2V

3.2V

0V3.2V5.0V

4.7V

3.2V

3.2V1 10K ohm

¼ Watt

100 ohm ¼ Watt

2345678910111213

24V

P201

IC1110

IC1104IC1106

IC1101

IC11061 (6.0V)2 (3.2V)3 (GND)

IC11041 (1.1V)2 (2.6V)3 (GND)4 (3.2V)5 (3.2V)

IC11101 (1.1V)2 (2.5V)3 (GND)4 (4.9V)5 (1.4V)

IC11011 (6.0V)2 (6.0V)3 (5.0V)4 (GND)5 (GND) Update

U1616Mhz

X12007.3728

Mhz

X40018.432Mhz

I-C (Inv-On)

BALLAST PWB

16

Pin Label STBY Run Diode Check1 19V 0V 18.5V2

Gnd

345 6V 6.1V6

3.4V7Gnd812V9 0V 12.3V

10

Open

Open

Open

1.6V

Open

19V

Gnd

Gnd

Gnd18.5V0V

0V

0V 3.4V

Gnd Gnd GndGnd Gnd Gnd

Gnd Gnd Gnd

Gnd Gnd Gnd

Gnd Gnd Gnd

Gnd Gnd Gnd

Gnd Gnd Gnd

Gnd Gnd Gnd

Gnd Gnd Gnd

Gnd Gnd Gnd Gnd

Gnd Gnd Gnd Gnd

Gnd Gnd Gnd Gnd

Gnd Gnd Gnd

Gnd Gnd Gnd

Note: Stby 5V and AC Det must be present at all times.

Note: STBY 5V (P201 pin 8) and AC Det (ADC) (P201 pin 1) must be present at all times. Check both ends of the the cable. If AC Det missing, check ohms to see if shorted. If yes, replace responsible board. If not, jump STBY 5V to ADC. If Main board responds correctly, SMPS at fault. If not, Main board at fault.

Gnd