Sharp GX30 Service Manual - Page 142

GX30

6 – 22

CONFIDENTIAL

IC707 RH-IXA021AFZZL (BD6015): POWER MANAGEMENT

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Pin

No.

Terminal

name

Input/Output

Input

level

ESD Diode

Description of terminal

Initial status

Power side

GND side

1

T1

–

–

–

GND1

Dummy terminal (internally connected with T2)

–

2

LEDG

Output

–

–

GND1

Green LED drive output terminal (constant current

drive)

LED off

3

GND1

–

–

VBAT1

–

Ground

–

4

VBAT1

–

–

–

GND1

VBAT power supply terminal

–

5*

LSO11

O, CMOS output

–

WVOUT

GND3

Level shift output 1 (Not used)

0 V output

6*

LSO12

O, CMOS output

–

WVOUT

GND3

Level shift output 1 (Not used)

0 V output

7

WVOUT

Output

–

–

GND3

2/4 times step-up charge pump output

Step-up stop

8

T2

–

–

–

GND1


–

9

TEST

I, CMOS input

–

VBAT1

GND1

Test terminal (pulldown with IC, inside)

–

10

LEDR

Output

–

VBAT1

GND1

Red LED drive output terminal (constant current drive)

LED off

11

LEDB

Output

–

–

GND1

Blue LED drive output terminal (constant current drive)

LED off

12

TRSW

Output

–

VBAT1

GND1

DC-DC switching Tr drive terminal for R/G/B LED

Step-up stop

13

CAPP1

Output

–

WVOUT

GND3

2/4 times step-up charge pump C1 connection terminal

Step-up stop

14*

CAPN1

Output

–

WVOUT

GND3


(Not used)

Step-up stop

15

SENSP

Input

–

VBAT1

GND1

DC-DC switching current sense terminal for R/G/B

LED

Step-up stop

16

SENSN

Input

–

VBAT1

GND1

DC-DC switching current sense terminal for R/G/B

LED

Step-up stop

17

CAP3

Output

–

–

GND3

2/4 times step-up charge pump output terminal

Step-up stop

18

CPIN

Input

–

–

GND3

2/4 times step-up charge pump input terminal

–

19

CAPP2

Output

–

WVOUT

GND3


Step-up stop

20

VIO

–

–

–

GND2

Logic system power supply terminal

–

21

VPLUS2

Input

–

–

GND1

DC-DC step-up voltage feedback input for R/G/B LED

Step-up stop

22*

CAPN2

Output

–

CPIN

GND3


(Not used)

Step-up stop

23

GND3

–

–

VBAT1

–

Ground

–

24

STRB

I, CMOS input

VIO

VIO

GND2

Three-wire serial strobe input

–

25

CLK

I, CMOS input

VIO

VIO

GND2

Three-wire serial clock input

–

26

VPLUS12

Input

–

–

GND3

DC-DC step-up voltage feedback input for front/rear

backlights

Step-up stop

27

CAMP

Output

–

VPLUS12

GND3

+15 V voltage output terminal for camera

0 V output

28

DATA

I, CMOS input

VIO

VIO

GND2

Three-wire serial data input

–

29

FRP

I, CMOS input

VIO

VIO

GND2

Level shift circuit, rectangular wave input terminal

–

30

IREF

Output

–

VBAT1

GND3

Resistor connection terminal for current reference

–

31

VREF

Output

–

VBAT1

GND3

Voltage reference terminal (connected with C)

–

32

LEDCTL

I, CMOS input

VIO

VIO

GND2

On/Off control terminal for R/G/B LED

–

33*

ERROUT

Output

–

VBAT2

GND2

SWREG1 error detection amplifier output (Not used)

No output

34

FLED

Output

–

–

GND2

White LED drive terminal for front backlight

LED off

35

GND2

–

–

VBAT2

–

Ground

–

36

SBD

Input

–

–

GND2

SBD input terminal

–

37

VNEG

Input

–

VBAT1

–

Negative power supply terminal for camera

–

38

CAMN

Output

–

VBAT1

–

–8 V voltage output terminal for camera

0 V output

39

T4

–

–

–

GND3


–

40

RSTB

I, CMOS input

VIO

VIO

GND2

Reset input (reset by low input)

–

41

BLED

Output

–

–

GND2

White LED drive terminal for rear backlight

LED off

42

SW

Output

–

–

GNDP

DC-DC coil switching terminal for front/rear backlights

Step-up stop

43

GNDP

Output

–

VBAT2

–

Ground

–

44

VBAT2

–

–

–

GND2

VBAT power supply

–

45

VPLUS11

Input

–

–

GND2

DC-DC step-up voltage feedback input for front/rear

backlights

Step-up stop

46

T3

–

–

–

GND3


–

Section	Page
FRONT	1
SERVICING CONCERNS	2
GENERAL DESCRIPTION	3
[1] Specifications	3
[2] Names of parts	4
[3] Operation manual	5
ADJUSTMENTS, PERFORMANCE CHECK, AND FIRMWARE UPGRADE	9
[1] SHARP Program Support Tool (SPST)	9
1. System requirements	9
2. Introduction	9
3. Adjustments for GX30	12
4. Functions	13
5. Other tests	51
[2] Test points	52
[3] Troubleshooting	56
1. Power is not turned on.	56
2. Voice transmission/recording is impossible.	58
3. No voice is heard from the earpiece.	60
4. Battery does not charge.	62
5. Vibrator does not work.	62
6. Clock Settings are reset.	63
7. Speaker does not work.	63
8. MP3 cannot be played.	64
9. Video/Voice Recorder playback is impossible.	65
10. Back Light does not turn on.	66
11. Out of range and incoming/outgoing calls are impossible.	67
12. The display does not appear on Main Display.	68
13. The display does not appear on External Display (in 65K color mode).	69
14. Pictures cannot be taken.	70
15. Flash light does not work.	71
16. SIM card is not recognized.	72
17. SD (Memory) card is not recognized.	73
18. IrDA (Infrared) communication is not possible.	74
19. Bluetooth communication is impossible.	75
20. USB connection is impossible.	76
DISASSEMBLY AND REASSEMBLY	77
[1] Servicing Concerns	77
1. For disassembling	77
2. For reassembling	77
[2] Disassembly and reassembly	80
DIAGRAMS	84
[1] Block diagram	84
SCHEMATIC DIAGRAM AND WIRING SIDE OF P.W.BOARD	88
[1] Notes on schematic diagram	88
[2] Types of transistor and LED	88
[3] Waveforms of circuit	89
[4] Schematic diagram/Wiring side of P.W.Board	92
OTHERS	121
[1] Function table of IC	121
[2] Function table of Camera	147
[3] Function table of Display	148
PartsGuide	151
[1] INTEGRATED CIRCUITS	152
[2] TRANSISTORS	152
[3] DIODES	152
[4] FILTERS	153
[5] COILS	153
[6] VARIABLE RESISTORS	153
[7] VIBRATORS	153
[8] THERMISTOR	153
[9] ARRAY PARTS	153
[10] CAPACITORS	154
[11] RESISTORS	156
[12] OTHER CIRCUITRY PARTS	159
[13] CABINET PARTS	160
[14] ACCESSORIES/PACKING PARTS	163

Sharp GX30 Service Manual - Page 142

IC707 RH-IXA021AFZZL BD6015: POWER MANAGEMENT, Terminal, Input/Output, Input, level, ESD Diode

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