Samsung E2330B Block Diagram 7

8. Level 3 Repair

8-1. Block Diagram

FLM,LCD RD

LCD_RS

LCD Module LCD_DATA(0:7)

LCD_RST,RS,WR

Back Light Driver
		EN_LCD_BL

			CAM_SCL, RST
				CAM_SDA
1.3M Camera			CAM_VSYNC HBYNC
			CAM_DATA(0:7)
			CAM_MCLK_OUT
			CAM
			LDO		EN_CAM_PWR

BT ANT

			BT Module
	SAW
			Option

CLK26M_BT

BT_RST

BT_REQ_CLK

PCM_CLK

PCM_SYND

PCM_TXD

PCM_RXD

UART2_TXD

UART2_RXD

	FM_ANT					FM_LNA_SW
				FM	FM_LNA_OUT
				LNA
						3.5_DETECT
3.5 pi		EAR_3.5				EAR_SPK_L/R
Socket		L/R

EAR_KEY

COMP

EAR_PHONE EAR_ADC

BASE Band

Catfish 118

PMB8808

SAW

DCS1800/PCS190_RX

GSM850/900_RX Main ANT

	BS1/BS2
			2G PAM
	TX_EN
	VLOGIC		SWITCH
	RAMP		Module		RF
					SW
	HB / LB _TX

AD(0:15) 256M_NOR+128M_PSRAM A(16:24) MEMORY

	DETECT_SD
	SD_CMD	SD	SD
	SD_CLK	Socket
			CARD
	SD_DATA(0:3)

	SIM_RST	SIM			SIM
	SIM_CLK
	SIM_I/O	Socket			CARD

Key_ROW(0:4)

Main Key

CON

ONKEY_N

		RCV P
		RCV N				RCV
		SPK P
						SPK
		SPK N

8-1

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Level 3 Repair

8-2. PCB Diagrams

8-2-1. Top

8-2

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Level 3 Repair

8-2-1. Bottom

ONE

TWO

THREE

	C523
	105DEL
	225R
RUOF	IFEV

C522

305DEL

R524

SIX

NEVES

EIGHT	NINE
125C	025C
125R	325R
005 DE	205 DE
L	L

STAR

OREZ

PRAHS

8-3

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Level 3 Repair

8-2-3 SUB TOP

EN

O_

TF

OS

DN

ES

EL TF

UP

OK	TGH I
	R

DOWN

OW

T_

TF

OS

E DN

8-4

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Level 3 Repair

8-2-3 SUB BTM

8-5

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Level 3 Repair

8-3. Flow Chart of Troubleshooting

presetting methods for checking TP

-GND & TP(exp. VBAT=C106, C220, C323) using Oscilloscope

-look over the coming out signal.

← Oscilloscope

GND

TP (Test Point)

8-6

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Level 3 Repair

← Multi-meter

←Checking the TP(test point) using Multi-meter

-EX) to look up the TP, shunt Cap. - if checking the GND, you can listen "beep"

if checking the Signal, you can't listen it.

8-7

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Level 3 Repair

8-3-1. Power On

' Power On ' does not work

Yes

Check the Battery Voltage is more than 3.7V

(TP:C525 C513 C512

Yes

VDD_1.8V = 1.8V?

(TP: C205)

Yes

Check the Clock at UCP200 A11pin (CLK26M)=26MHZ (TP:OSC201 1,3pin)

Yes

END

No	Change the Battery

(Because of batt. power low)

No

Check the Main Chip related to SD1_FB=1.8V (TP:C231)

(to lookover the Chip damage)

Check the Main Chip

No (to lookover the Chip damage) (TP : OSC201 1,3pin / look over the

waverform

using the oscilloscope)

8-8

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Level 3 Repair

VBAT

00

C513

C512

5D

C525

BTC500

1	1									R520
2	2													VF
3	3
NC	4
	5
NC
NC	6				105V					C514
	7
NC

BATT.CON

S 4C 30

505C

BTC500

215C

C525

315C

005D

C300

105V

R300

00V5

803

103 Q

025R

415 C

R

103U

005 L

R309

Q300

R306

503R

203R

USE AS GPO

0.3T ROUTE FROM C236(0.1T)

USIF2_TXD_MTSR					UART2_TXD
LEDDRV	L8	L9	EN_MAIN_KEY
LEDFBN
LEDFBP	K10
SENSEN	L6		SENSE_N
	M6
SENSEP			SENSE_P
FE1	B16		BS1	L200	C227
	A14
FE2	M10		BS2
FMRIN	M11
FMRINX			ISOLATE
	G11				C228
FSYS1			CLK26M_BT
FSYS2	F11
	K15
FSYS_EN			BT_REQ_CLK
HSL	R14		EAR_SPK_L
	T14
HSR			EAR_SPK_R
XO	A11
	B11
XOX
						VDD_1.8V
				NOISY	L201
ONOFF	R9		ONKEY
	R7
SD1SW	T6
SD1_FB
	R3		ADVn	VDD_IO1_1.8V		C231
	J1					2C
ADV_N						63
RD_N	L13		RDn	RST_BB_J
RESET_N	H15				R208	CLOSE TO THE PIN
TRST_N	J6		TRSTn	RST_BB
WAIT_N	R4		WAITn
WR_N	K16		WEn
TRIG_IN	B4
T2IN			3.5_DETECT
					R209
	C13

				TP_WEn
C214			732C
		71
		2R	TP_WAITn
102L
132 C	602 C
	232 C	432C
	532C
	C224
	61	40
	2C	2C	522 C	622C

C215

R510

402R nDR_PT

C503

905R

002PCU

2C 31

605DZ

2CSO
10
002C	102C
202C	812C
	712C
21C
7

50	C208
2C
			TP_WEn
	C214		PT_nDR
			712 R
	102L
63
2C	1	6
PMB8808	3	0
	2C	C2C232	432C
			002PCU
		532C

L8

LEDFBN

K10

LEDFBP

						C224
SENSEN	L6	SENSE_N
	M6					6	4
SENSEP		SENSE_P				2C	2C	522 C	622C	312C
FE1	B16	BS1	L200	C227		C215
	A14
FE2		BS2							OSC200
	M10					332C
FMRIN	M11					FM_LNA_OUT
FMRINX		ISOLATE
	G11			C228
FSYS1		CLK26M_BT
	F11
FSYS2
	K15
FSYS_EN		BT_REQ_CLK
HSL	R14	EAR_SPK_L				CLOSE TO XO(SHIELD & CUT FILL)
	T14
HSR		EAR_SPK_R					OSC201
XO	A11
	B11
XOX
					VDD_1.8V	2				1
			NOISY	L201
	R9
ONOFF	R7	ONKEY				3				4
SD1SW
SD1_FB	T6
	R3		VDD_IO1_1.8V		C231
ADV_N		ADVn
	J1
RD_N		RDn
	L13
RESET_N	H15		RST_BB_J
TRST_N		TRSTn	RST_BB	R208		CLOSE TO THE PIN
	J6
WAIT_N		WAITn

C211		CDH
402R
R510
C503		05
		0
605DZ
CSO
102
		02HT
002C	102C	0
202C	812C	5
		02R
	712C
21C		801R
7
131C	211C	511C
		R116
		R115
		001
		U

8-9

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Level 3 Repair

8-3-2. Initial

Initial Failure

Yes

CN200

(RST_BB_J) > 1.7V?

No

Resolder UCP 200

using the oscilloscope GND &

SHORT PAD.

RST_BB_J) must be higher than 1.7V.

Yes

Check the 16bit data signals.

Yes

END

VDD_IO1_1.8V

													CN200
													1
														1
TMS													2	2
TDI									3					3
									4
TCK														4
RST_BB_J									5					5
									6					6
TRSTn									7					7
									8
TDO														8
TXD1_J									9					9
RXD1_J									10					10

	732C	402R
		PT_nDR
7		C503
12	TP_WAITn	FS
		DD
R		_V
		TP
		905R

602 C
					002PCU	605DZ
432C
532C
C224
							002C
6
	4		C522	622C	312C
1C2	0C2						202C

C215

8-10

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Level 3 Repair

8-3-3. Charging Part

Abnormal charging part

Yes

Check the Battery & TA

connection.

Yes

R304 > 4.9V ?

Yes

Check the Q304 pin4 >4.9V ?

Yes

END

No

Reinsert the Battery or TA.

No			Resolder R304
		(be	possible that it's not soldering well)

No	Replace Q304 using a	Heatgun

8-11

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Level 3 Repair

		Q300		VBUS_5V_OUT
CS	1	6
CSB	2	5	VSHNT
	3	4	VDDCHG
				R300
				R302
	PARALLEL FROM R310(0.1T)
	N	P		3
	E	E
VBAT	SNE	SNE
	S	S
			1	4
			2
			5
			6	Q301
	R306	0.1,1% 1005		R308	C
					05
					5
					VCHG
				R309	BTC500

215C

CHARGING CIRCUIT

C525

315C

005D

C300

103U

105V	V
	005	803
025R	415 C	R
	005	R309
	L
		R306

503R

3Q 10

R300

Q300

203R

8-12

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