Sony MCE-K550,MCE-K750 Service Manual

MCE-K550/K750

E Model

Chinese Model

SERVICE MANUAL

VIDEO CD PLAYER

MICROFILM

Model Name Using Similar Mechanism MCE-S70
CD Mechanism Type CDM14-5BD24
Base Unit Type BU-5BD24
Optical Pick-up Type KSS-213B/S-N

SPECIFICATIONS

PHOTO: MCE-K750

VIDEO CD player

Laser Semiconductor laser
Wavelength 780-790nm

Signal format system NTSC, PAL

Frequency response 2Hz to 20kHz±1dB
Signal-to-noise ratio More than 94dB

General

Power requirements (model for Chinese)

220-240V AC, 50/60Hz
(model for other countries)
110-120V or 220-240V AC,
adjustable, 50/60Hz

Power consumption K550:21W, K750:24W
Dimensions (approx.) 430×108×350mm

(w/h/d) inchl. projecting parts
Mass (approx.) 4.4kg

Supplied accessories

Audio and video connecting cord (1)
Remote commander (remote) RMT -K750V/K550V (1)
Sony SUM-3 (NS) battery (2)
Plug adaptor (1) (except model for China)

Desing and specifications are subject to change without notice.

Outputs

AUDIO OUT

VIDEO OUT

S VIDEO OUT

(K750)

PHONES

Jack
type

Phono
jack

Phono
jack

4-pin mini
DIN

Phono
jack

Maximum
output
level

2V
(at 50 kilohms)

1Vp-p

Y:1Vp-p

C:0.286Vp-p
10mW

Load impedance

Over 10 kilohms

75 ohms, unbalanced,
sync negative, white
peak

75 ohms, unbalanced,
sync negative

32ohms

Maximum
input
level

100mVp-p

Inputs

MIC 1,
MIC 2

Jack
type

Phone
jacks

Load impedance

600ohms

— 2 —

TABLE OF CONTENTS

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH
MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY .

Notes on chip component replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be
damaged by heat.

This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.

This caution label is located inside
the unit.

The laser component in this product is
capable of emitting radiation exceeding
the limit for Class 1.

CAUTION

Use of controls or adjustments or performance of
procedures other than those specified herein may result in
hazardous radiation exposure.

1. SERVICING NOTE ················································ 3

2. TEST MODE ·································································· 4

3. GENERAL ······································································ 6

4. DISASSEMBLY

4-1. CABINET··········································································· 7
4-2. BASE UNIT (BU-5BD24) ················································· 7

5. ELECTRICAL ADJUSTMENTS ····························· 8

6. DIAGRAMS

6-1. CIRCUIT BOARDS LOCATION ····································10
6-2. BLOCK DIAGRAM — BD SECTION — ······················ 11
6-3. BLOCK DIAGRAM — MAIN SECTION —·················13
6-4. SCHEMATIC DIAGRAM — BD SECTION —·············16
6-5. PRINTED WIRING BOARD — BD SECTION —········ 19
6-6. PRINTED WIRING BOARD

— VIDEO SECTION —················································· 21

6-7. SCHEMATIC DIAGRAM

— VIDEO SECTION —·················································· 23

6-8. SCHEMATIC DIAGRAM

— DIAPLAY SECTION — ············································· 27

6-9. PRINTED WIRING BOARD

— DISPLAY SECTION— ···············································31
6-10. PRINTED WIRING BOARD — MAIN SECTION—··· 33
6-11. SCHEMATIC DIAGRAM — MAIN SECTION— ·········35
6-12. IC BLOCK DIAGRAMS ················································· 38
6-13. IC PIN FUNCTION ························································· 41

7. EXPLODED VIEWS

7-1. CASE SECTION ······························································45
7-2. CHASSIS SECTION························································ 46
7-3. MECHANISM DECK SECTION (CDM14M-5BD24)··· 47
7-4. BASE UNIT SECTION (BU-5BD24) ····························· 48

8. ELECRICAL PARTS LIST ······································ 49

— 3 —

SECTION 1

SERVICING NOTE

SELF-DIAGNOSIS

This model has the self-diagnosis function for the video and audio
decoder sections.
Immediately after the power on, the self-diagnosis function searches
each operation of IC’s around the mechanism control microcomputer
(IC504).
The LED (D502) on the VIDEO board indicates their results.

[VIDEO BOARD] — SIDE A —

HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH
TURNS OFF

Insert a screwdriver into the aperture of the unit bottom, and turn in
the direction of arrow (to OUT direction).

*

T o close the disc tab le, turn the screwdriver in the re verse direction
(to IN direction).

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT

The laser diode in the optical pick-up block may suffer electrostatic
break-down because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick­up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

LASER DIODE AND FOCUS SEARCH OPERATION
CHECK

Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output three times.

LED (D101) INDICATION

Light

1 Time blinking (Repeatedly)

2 Time blinking (Repeatedly)

SYMPTOM

No error
Video decoder error
(IC503)
Video RAM error (IC502)

Screwdriver

IN

OUT

Pull out disc table.

IC503

IC502

IC504

D502

SL501

SL503

SL502

— 4 —

SECTION 2

TEST MODE

VIDEO CD COLOR-BARS MODE

On this mode, the data of the color-bars signal as a picture signal
and the 1kHz sine wave signal as a sound signal are output by the
mechanism control microcomputer (IC504) for video CD signal
check. When measurement of the voltage and waveform on the
MAIN board, perform it in this mode.
For reference, the color-bars signal can be observed at J103 (VIDEO
OUT) and the sound signal can be observed at J104 (AUDIO OUT)
using an oscilloscope.

1. Connect the SL503 (C BAR (MICON)) on the VIDEO board
with solder.

2. Turn the power on.

3. After measuring, remove the soldering installed.

SERVO CHECK MODE

1. Connect the SL502 on the VIDEO board with solder.

2. Turn the power on.

1) Coefficient display and gain display
The following hexadecimal data is displayed on the FL tube
when the JOG SELECTOR key is pressed. Every pressing of
the JOG SELECTOR key toggles between the following
displays.

2) Pressing of the DNR/COMET key toggles between ON and
OFF of the tracking and sled servo.

3) Pressing the PLAY MODE key (KARAOKE PON in K750)
during playback increases the FB value (every 4 steps).
Pressing the REPEAT key (SURROUND in K750) decreases
the FB value (every 4 steps).

4) Pressing the ACTIVE key toggles between the normal speed
and double speed.

5) Pressing the RETURN key toggles between the up FIL and
NO FIL.

6) Pressing A⇔B key performs re-measurement of focus bias.

Display
position→

Display
mode 1

Display
mode 2

Display
mode 3

Display
mode 4

Display
mode 5

Display
mode 6

Display
mode 7

TRACK

01

02

03

04

05

06

07

INDEX

FB POINT
(when jitter
is minimum)

00

TRVSC
RESISTER

VC
OFFSET

FCS AUTO
GAIN

RF PEAK –
RF
BOTTOM

Set the
present FB
REGISTER
value

MIN

AUT O F B
POINT

FB upper
limit

00

FE
OFFSET

00

RF PEAK

00

SEC

RF JITTER
MINIMUM
VALUE

FB lower
limit

TE
RESISTER

RF
OFFSET

TRK AUTO
GAIN

RF
BOTTOM

Present RF
JITTER
value

TRACK

MIN SEC INDEX

Initial display (K550)

TRACK

MIN SEC INDEX

Initial display (K750)

— 5 —

Lighting of All Fluorescent Indicator Tube
Displays and Key Check Mode

1. Connect SL501 on the VIDEO board with solder.

2. Turn the power on.

3. All the Fluorescent Indicator tube displays light up.

4. Press any button to enter the key check mode. In the key check
mode, each time a button is pressed, figures displayed on the
Fluorescent Indicator tube displays increase. However , f igures
will not increase for buttons which have been pressed once.
The button number corresponding to the button pressed will
also be displayed. Button numbers are displayed only while
the corresponding buttons are pressed.

5. After the test mode, remove the soldering installed.

7-segment display

Initial display (K550)

Initial display (K750)

[ VIDEO BOARD ] — SIDE A —

8888

n

Count up display

Button number display

n

Button Name
NEXTˆ

§OPEN/CLOSE
RETURN
PREV

º
‚

DNR
MPX (K750)

L/R/STEREO (K550)
SURROUND (K750)

REPEAT (K550)
KEY CONTROL N

(K750)
KARAOKE STAR

(K750)
KEY CONTROL #

(K750)
KEY CONTROL ˜

(K750)
KARAOKE PON

(K750)
PLAY MODE (K550)

JOG SELECTOR
(PUSH SELECT)

ACTIVE/COMET

p

∏

·

Button Number (Displayed only
while a button is pressed.)

Figure 0E
Figure 16
Figure 30
Figure 31
Figure 33
Figure 34
Figure 48

Figure 50

Figure 5d

Figure 67

Figure 68

Figure 6b

Figure 6c

Figure 77

Figure 81
Figure 88

All Fluorescent Indicator tube
displays light up

Music calendar light up alternately
(K550)
(odd numbor to even number)
KEY indicater light up alternately
(K750)

7-segments displays light up
alternately
The odd number digits and the even
number digit of the upper 7-segments
displays and the lower 7-segments
displays light up alternately.

13

79

5

11 13

17 19

15

68

24

10

16 18

12 14

20

↔

IC503

IC502

IC504

D502

SL501

SL503

SL502

— 6 —

SECTION 3

GENERAL

Location of Parts and Controls

Front Panel

Rear Panel

1 STANDBY botton
2 KEY CONTROL botton (K750 MODEL)
3 KARAOKE STAR botton (K750 MODEL)
4 OPEN/CLOSE botton
5 RETURN/PREV/NEXT botton
6 DNR/COMET botton
7 ACTIUVE botton
8 ) botton
9 0 botton
!º JOG SELECTOR

!¡ p botton
!™ P botton
!£ · botton
!¢ MPX/KARAOKE PON/SURROUND botton (K750

MODEL)
L/R/STEREO/PLAY MODE/REPEAT botton
(K550 MODEL)

!∞ ECHO LEVEL/MIC 1 LEVEL/MIC 2 LEVEL/

VOCAL LEVEL/MUSIC LEVEL

!§ MIC1/MIC2 jack
!¶ MIC CONTROL jack (K750 MODEL)
!• PHONES jack-LEVEL
!ª MODE switch (K750 MODEL)

@º MUSIC LEVEL switch (K550 MODEL)
@¡ AUDIO OUT jack
@™ VIDEO OUT jack
@£ S VIDEO OUT jack (K750 MODEL)
@¢ COLOR SYSTEM switch
@∞ VOLTAGE SELECTOR switch (Singapore, Malaysia, Taiwan MODEL)

Video CD

1

2

3

4567

8

!•

!ª

9

!º

!¡!™!£

!¢!∞

!§

!¶

@º @¡ @™ @£ @¢ @∞

K750
MODEL

— 7 —

SECTION 4

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

4-1. CABINET

• In order to remove the front panel block when the power supply

does not turn on, rotate the cam with screwdriver as the figure
shows, and the disk table will be moved.
Then pull out the disk table by your hand to remove the loading
panel. After that take out the front panel block.

4-2. BASE UNIT (BU-5BD24)

Screwdriver

Pull out disk table

1

Turn the cam to the
direction of arrow
(counter clock wise)
by screwdriver

2

T ak e off the disk table.

3

Yoke bracket

4

Remove the MD (BU-5BD24)
to the direction of arrow.

BU-5BD24

— 8 —

SECTION 5

ELECTRICAL ADJUSTMENTS

Procedure :

1. Connect oscilloscpe to test point TP (TE) on BD board.

2. Turned Power switch on.

3. Connect the SL502 on the VIDEO board with solder.

4. Put disc (YEDS-18) in to play the number two track.

5. Press the DNR button. (The tracking servo and the sledding
servo are turned OFF.)

6. Check the level B of the oscilliscope's waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following :
A/B x 100 = less than ± 22%

Traverse wavefor m

Note : A clear RF signal waveform means that the shape “◊” can

be clearly distinguished at the center of the waveform.

RF signal waveform

CD SECTION

Note :

1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.

2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.

3. Use an oscilloscope with more than 10MΩ impedance.

4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the
following checks.

S Curve Check

BD board

TP (FE)
TP (VC)

BD board

TP (RF)
TP (VC)

level : 1.3 p-p

TP (TE)
TP (VC)

BD board

C (DC
voltage)

T racking servo
Sled servo

ON

T rac king servo
Sled servo

OFF

Procedure :

1. Connect oscilloscope to test point TP (FE) on BD board.

2. Connect between test point TP (FEI) and TP (VC) by lead wire.

3. Turned Power switch on.

4. Put disc (YEDS-18) in and turned Power switch on again and
actuate the focus search. (actuate the focus search when disc
table is moving in and out.)

5. Check the oscilloscope waveform (S-curve) is symmetrical
between A and B.
And confirm peak to peak level within 3±1 Vp-p.

S-curve waveform

symmetry

within 3 ± 1 Vp-p

A

B

6. After check, remove the lead wire connected in step 2.
Note : • Try to measure several times to make sure than the ratio

of A : B or B : A is more than 10 : 7.

• Take sweep time as long as possible and light up the
brightness to obtain best waveform.

RF Level Check

Procedure :

1. Connect oscilloscope to test point TP (RF) on BD board.

2. Turned Power switch on.

3. Put disc (YEDS-18) in to play the number five track.

4. Confirm that oscilloscope waveform is clear and check RF
signal level is correct or not.

E-F Balance (Traverse) Check

oscilloscope

oscilloscope

+0.25
–0.20

oscilloscope

7. Press the DNR button. (The tracking servo and sledding servo
are turned ON.) Confirm the C (DC voltage) is almost equal to
the A (DC voltage) is step 6.

Traverse wavefor m

Center of the waveform

B

A (DC voltage)

level : 1.3

±

0.6 Vp-p

VOLT/DIV : 200mV
TIME/DIV : 500ns

8. Remove the soldering installed in step 3.

0V

0V

— 9 — — 10 —

VIDEO SECTION
Frequency adjustment (NTSC)

1. Connect the frequenc y counter to c hec k point of the VIDEO
board.

Adjustment Location :

[ BD BOARD ] — SIDE A —

2. Color system switch (S300) select to NTSC and turn the
POWER switch ON.

3. Adjust CT503 of the VIDEO boar d so that the frequenc y
counter read 27.0MHz ± 80Hz at ST OP condition.

Frequency adjustment (PAL)

1. Connect the frequenc y counter to c hec k point of the VIDEO
board.

2. Color system s witc h (S300) select to P AL and turn the PO WER
switch ON.

3. Adjust CT503 of the VIDEO boar d so that the frequenc y
counter read 27.0MHz ± 80Hz at ST OP condition.

VIDEO board

27.0 MHz

frequency counter

GND

VIDEO board

27.0 MHz

frequency counter

GND

[ VIDEO BOARD ] — SIDE A —

SECTION 6

DIAGRAMS

6-1. CIRCUIT BOARDS LOCATION

CN board

BD board

VOL board

MAIN board

VIDEO board

DISPLAY board

LOADING board

MIC board

IC103

20

11

1

10

(RF) (VC)

(FE)

(FEI)

IC101

IC513IC512

X505

CT503

IC504

SL503
SL502
SL501

GND

27MHz

CN504

MCE-K550/K750

— 11 — — 12 —

6-2. BLOCK DIAGRAM — BD SECTION —

MCE-K550/K750

6-3. BLOCK DIAGRAM — MAIN SECTION —

— 13 — — 14 —

— 15 —

384BD

S700-705

C2PO

72
69

7

13
16

88
81

120
5
6

.
.

.

.

119

LED
DRIVE
Q700

34
31
33
77

100
21
22

79

48
12
38

80

SO1
CLK1
XRST

DNR CS
DVE CS
DF CS

SO1
CLK1
XRST

DNR CS

DVE CS

DF CS

FL CS

OSD CS

24
21
19
17

18
20
23
22
33

54
52
50
48
46
42
40
38

39
41
43
47
49
51
53
55

16

19
22

26

2

5
7

10

31

34
36

39

.

.

.

.
.
.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

XRST

DF CS

DVE CS

XRST

.

9

6

4

1

SO1

CLK1

XRST

C BUFFER
Q331-333

Y BUFFER
Q341-343

CV BUFFER

Q371-374

SO1

CLK1

64

63

61

62

40 - 33

DRIVE

MUTE
Q100

MUTE
Q101

MUTE
Q200

MUTE
Q201

MUTE SW

Q310

SO1

CLK1

XRST

DNR CS

RIPPLE FILTER

Q312

RECT
D906

RIPPLE FILTER

Q311

REG
IC304

REG CONT
Q900,901

LRCK

BCLK

ADATA

CTRL2

CTRL1

SCOR

CLK

DATA

MUTE

SQCK

LDON

XLT

SENS

SUBQ

XRST

CN101

SCLK

SCLK

MICON

MECHA CONTROL

IC504

2
36
1
4
6
37
10
3
5
18
11
19

SENS

SUBQ

XLT
LDON
SQCK
MUTE
DATA
CLK
SCOR
CONT1
CONT2

2

10

78

6

5

OUT1

OUT2

F IN

M

R IN

MOTOR DRIVE

IC501

3

2

1

REMOTE

CONTROL

IC700

+7V

+5V

(EVER)

LOADING

MOTOR

28

27

29

30

7

SIRCS

LOAD IN

LOAD OUT

IN SW

OUT SW

S152

LOAD IN

S153

LOAD OUT
PAL

AUTO

ON

NTSC

OFF

S300

S720

KEY 0

KARAOKE

N/P SW93

52

90

ADATA

BCLK
LRCK

.

VF2

-30V
(VFDP)

VF1

FL700

Q401

DI

CL

XBLK

CE

FL DRIVE

IC701

S1-S24 C1-C6

AMUTE

XRESET

PWON

XBLK

78

73

13

15

D700

D502

+5V

(EVER)

+5V

(EVER)

PWON LED

TEST LED

X IN

X OUT

X502

10MHz

X501

28.63MHz

X503
45MHz

VCDCS

RD

XRW

VCDINT

A3

A0

47

44

46

20

1
2

3

4
5

6

12
13

11

IC507

D7

D0

8

4

MPEG DECODER

IC503

A3

A0

HD7

Y/C PROCESSOR

IC506

8

4

XMWE

XHIRQ

HD0

MA8

MA0

DRAM
IC502

117
116

114

118

97

9

16

A8

A0

MD15

MD0

DQ16

DQ1

XWR

XHCS

XRST
XSGRST

XTL0I

XTL0O

3

2

107

106

35
34

37

13
14
28
29

59
58
57

56
92
95
93

XTL2I

XTL2O

W
RAS
UCAS
LCAS

XRAS

XCAS0

OSD R
OSD G
OSD B

XOSDEN
H SYNC
CBLNK/FSC
V SYNC

DATI
BCKI
LRCI
C2PO

DCLK

FID/FHREF

FSXI

DATA

111
112
110
109

100

89

94

103

16

OSD

IC509

384FS

CS
DATA
CLK
PCL

VR
VG
VB

V CBL

H SYNC

V SYNC

OSC

2
3
1
4

16
17
18

11
20

19
8

+5V(D)

13
12

11

IC505(4/4)

123

4

X202

27MHz

IC202

62

3

5

DCLK

V SYNC

SDI

XSCK

XRST

XCS

H SYNC

60

67

Y/GO7

Y/GO0

10BIT D/A CONV

IC511

Y7

Y0

8

32

29

24

C OUT

Y OUT

COMP O

98
97

100

31

30

93 29

60
59
62
56
57

48

49

55

51

50

H SYNC
V SYNC
FID
SYS CLK
PD CLK

SCK

XRST

XVRST

XCS

SI

D/A CONV

IC508

XRST

ML

L ON

R ON

BCLK
LRCK

6

5
8

22

1

14

12

LINE AMP
IC103(1/2)

HP AMP
IC105(1/2)

RV300

-1

-2

J300

PHONES

IC103(2/2)

IC105(2/2)

C

Y

CV

J103

J102

S VIDEO

OUT

R

+Vcc+V OUT

IC301

UNSWITCHED +5V

IC302

5

4

1

3

1

IN

OUT

RESET

+5V(D)

+5V

(UNSW)

+5V(A)

-10V

+10V

-UNREG

+UNREG

+7V

321

-30V

(VFDP)

VF2

VF1

ICP901

ICP900

T901

POWER

S901

F901

AC
IN

230V

115V

S900

XRST

2 - 7

56 - 42

FLUORESCENT
INDICATOR TUBE

GRID

CLOCK CONT

+5V REG

DIGITAL FILTER

R

L

VIDEO OUT

AUDIO

OUT

BD

BOARD

Signal path

: CD

: CHROMA

: Y

: VIDEO

A

51

58

CRO7

C/RO0

18

11

C7

C0

8

63

70

27

20

R/Cr7

R/Cr0

8

CRI7

C/RI0

71

73
76

80

.

G/Y7

G/Y0

8

Y/GI7

Y/GI0

18

11

DSP XRST

24

K550 MODEL

K750 MODEL

KARAOKE

K750

MODEL

ENCODER

S707-712

KEY 191

25
26

JOG 1
JOG 2

S713-719

KEY 292

95

STANDBY

49
50

KDSP CS
KDSP RDY

KDSP CS

KDSP RDY

54

53

MODE2

MODE1

+5V(D)

K550 MODEL

K750 MODEL

MUSIC

VOL

VOCAL

VOL

94

+5V

(EVER)

12dB

9dB

OFF

AUDIO

ATT

RV301 RV302

S301

VOCAL VOL

MUSIC VOL

89

97

MIC CONT

ECHO VOL

S35-40

22 - 17

LED

DRIVE

Q701-706

D701-706

6

C1

C1

5
4

6

+5V(D)

IC505(3/4)

1
2

3

+5V(D)

IC505(1/4)

10
9

8

IC505(2/4)

+5V(D)

QCK

DQ

DIVIDER
IC513(2/2)

812

11

9

QCK

DQ

DIVIDER
IC513(1/2)

18

19

X504
33MHz

XTI

XTO

DI

10

16

LO

RO

LPF

IC101(1/2)

LPF

IC102(1/2)

SO1

CLK1

MD

MC

23

24

KDSP CS

KDSP RDY

D/A CONV

IC510

XLT

READY

AO1N

AO2N

BCK
LRCK

92

93
94

1

99

33

39

DIGITAL FILTER

SI

40

34

AO1P

AO2P

XRST

CLK1

XRST

SCK

8

98

MLEN

3

BFOI

14

SO1

RVDT

4

AIN3

20
21

LO3

IC401(2/2)

MIX AMP

IC401(2/2)

MIC AMP
IC400(1/2)

MIC1 VOL

RV400

MIC2 VOL

RV401

MIC AMP
IC400(2/2)

MIC 1

IN

MIC 2

IN

MIC

CONTROL

K750 MODEL

911

IC402

OUT

IN

ECHO UNIT

K550 MODEL

K750 MODEL

LL

R

R

L

L

L

5

R

L

L

L

AUDIO OUT 1

AUDIO OUT 2

VIDEO

OUT

J104

K750 MODEL

K550 MODEL

K750 MODEL

D901

D903

D904

D905

Q309

POWER

SW

Q305

POWER

SW

Q313
Q314

IN–V OUT

–5V REG

IC305

3

2

–5V

CHINESE,

MODEL

SINGAPORE,

MALAYSIA,TAIWAN

MODEL

7

7

5
6

3
2

131

5

7

31

7

5

13