LG Electronics RAD-243A, WG1805RY6, WG2405RY6, RAD-183A service manual Diagram, CN-TH1

ROOM-TH

PIPE-TH

5V

	CN-TH1
	SMW250-04
1	1
2	2
3	2	5V
4	4
	R03H	R21H	R22H
	0K	12.1K	12.1K
		1%	1%

					R01A
					20K		5V
		OSC01B
R02H	R01H	RT8.00MG				1	IC01A
6.2K	12.1K				3	3.6V
1%	1%			+			S7136
		R01B	C01A		C02A	2
		1M	0.01		1uF
			50V		50V

				EEPROM
				24LC01BT
			1	A0	Vcc 8		R02P	5V
		5V	2	A1	WP	7		R03P
			3				20K	20K
				A2	SCL 6
			4	GND SDA 5
TH	TH	out	in

Q04G	5V
A101S
	Q03G
	A101S
	Q02G
	A101S
	Q01G
	A101S

Electronic Control	Schematic
Device

SYNC

MOTOR

S/V-

4WAY

FAN

MOTOR

CAPACITOR

FAN

C

HERM

MAIN POWER

COMP

12V

	CN-SYNC
3	3	RY-SYNC
1	1
	CN-4WAY
3	3	RY-4WAY
1	1
	CN-RD	RY-LOW
	CN-BL	RY-MED
	CN-BK	RY-HI
	CN-WOR
		C01J
		0.1/275V

R01J

120 1/2W

ZNR01J

TVR14271

RY-COMP

G4A-1A-E-LG

FUSE

250V/T3.15A

OR1HOR2H

RY-COMP		10	7
RY-SYNC		11	6
RY-4WAY		12	5
RY-LOW		13	4
		14	3
RY-MED		15	2
RY-HI		16	1
	12V	9	8
		IC01M
		ULN2004A

POWER TRANS
1	7	D05D
	D02D
	D03D	D04D	+
2		C01D
	4
	D02D~D05D	1000
	1N4004	35V

	Option2		Option1	Pipe	Room		VAref		VSS	Osc	Osc	/Reset		TEST		Tx
		22	21	20	19		18		17	16	15		14	13	12		Rx
COMP	23															11		R04P
																		1K
SYNC																	SDA
	24															10
4WAY																	SCL
	25															9
LOW																	Digit4 (Scan4)
	26															8
HVB																	Digit3 (Scan3)
	27							MICOM								7
ION																	Digit2 (Scan2)
	28					TMP87CH47U										6
																	Digit1 (Scan1)
MED	29															5
																	Digit0 (Scan0)
HI	30															4
Receiver																	SEG-a
	31															3
Buzzer																	SEG-b
	32														2
LED out3																	SEG-c

331

34 35 36 37 38 39 40 41 42 43 44

LED out2

LED out1

LED out0

KEY1

KEY0

SLIDE SW

VDD

SEG-g

SEG-f

SEG-e

SEG-d

R12F

1

16

20K

C02F

R02F

R01F

2

15

C01F

5V

0.001

10K

0.001

10K

3

14

4

13

R02E

20

5

12

R01E

6

11

1K

7

10

IC01G

8

9

12V

ULN2004A

12V

5V

R01L

1K

IC01D

IC02D

I

O

I

O

C01L

7812

7805

+

680pF

C02D

+

C04D

C05D

C06D

C03D

220

0.01

0.1

1000

0.01

10V

50V

50V

16V

50V

	2	3	4	5
	16	15	14	13
TEMP UP	TEMP DOWN	MODE		ON/OFF
SW7	SW5	SW4		SW6
D07F	D05F	D04F		D06F

				ENERGY	TIMER	FAN			AUTO SWING
				SAVER
				SW3	SW2		SW1			SW8
		17	1	D03F	D02F	D01F			D08F
	5V			5V
		1	17					10			6
		13	5
		14	4				Digit1			Digit0
R01G	150	6	12			5	a
					COOL		b		a		a
R02G	150		11			4
		7
				A/SWING
R03G	150				DEFROST		c	f	b	f	b
		8	10			3
				A/RESTART	DRY/HEAT		d
R04G	150		9			2
		9							g		g
					TIMER
R05G	150	10					e
			8			1
					FAN
R06G	150	11					f	e	c	e	c
			7		E/SAVER	7
R07G	150			AIR PURIFIER			g
		12	6			8
									d		d
		15	3					88 SEGMENT
		16	2		BZ01E
					PKM13EPY
					-4002		Vcc		5V
	CN-DISP		CN-DISP
									+
						Vout			C22L
							GND		220
									10V
						RECEIVER

Diagram

Service Manual 22

Schematic Diagram