Philips FWM583 55 Service Manual

Mini System

FWM583/

55

TABLE OF CONTENTS

Versions Variation .......................................................1-2

Specifi cations ..............................................................1-3

Measurement Setup ....................................................1-4

Service Aids, Safety Instruction, etc ............................1-5

CD Playability Check .........................................1-6 to 1-8

Disassembly Instructions ................................................2

Service Program Test .................................................... 3

Block & Wiring Diagram.....................................4-1 to 4-2

Front Board & Key Board ...............................................5

MCU Board .....................................................................6

ECO6 Tuner Board : Systems Non-Cenelec ................7A

CD Board .......................................................................8

Mains Board & Mic Board .................................................... 9

High Amp Board & Power Board & USB Jack Board....10

AF9 Board ....................................................................12

Mechanical Exploded View & Parts List .......................13

Electrical Parts List .......................................................14

©

Copyright 2007 Philips Consumer Electronics B.V. Eindhoven, The Netherlands

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without
the prior permission of Philips.

Published by SL0728 Service Audio Printed in The Netherlands Subject to modifi cation.

Page

CLASS 1

LASER PRODUCT

GB

3141 785 31980

Version 1.0

VERSION VARIATIONS

Features &
Board in used:

Karaoke
News
RDS
Rotary Encoder (volume control) x
Jog Shuttle
Voltage Selector
Aux Input x
Digital Output
Headphone Socket x
Line Output
Matrix Surround Loudspeakers
Standby - FTD Clock Display
ECO Standby - LED Display
ECO6 Tuner board - System Non-Cenelec x
ECO6 Tuner board - System Cenelec
ETF7 Tape Module: Non-Autoreverse Ferro
USB Direct

1-2

Type /Versions: FWM583

/55

x
x

x

SPECIFICATIONS

1-3

AMPLIFIER

RMS output power

LF channel .................................. 105 W per channel

HF channel ................................. 105 W per channel

Total Bi-Amp power ......................................... 420 W

Signal-to-noise ratio ............................. 60 dBA (IEC)

Frequency response .......................... 50 – 15000 Hz

Input sensitivity

AUX .......................................................... 900/2400 mV

Output

Speakers ........................................................................ 3 :

Headphones ............................................................. 32 :

(1) (3 :, 1 kHz, 10% THD)

CD/MP3-CD PLAYER

Number of programmable tracks ......................... 99

Frequency response ............. 50 – 20000 Hz -3dB

Signal-to-noise ratio ............................................ 60 dBA

Channel separation ......................... 60 dBA (1 kHz)

Total harmonic distor tion ........................... < 0.003%

MPEG 1 Layer 3 (MP3-CD) .......... MPEG AUDIO

MP3-CD bit rate ....................................... 32-256 kbps

(128 kbps advised)

Sampling frequencies ....................... 32, 44.1, 48 kHz

SPEAKERS

System 2-way; double port bass reflex

Impedance ........................................................................ 3 :

Woofer ...................................................................... 1 x 5.5"

Tweeter.......................................................................... 1 x 2"

Dimensions (w x h x d) . 248 x 310 x 195 (mm)

Weight ............................................................. 3.65 kg each

GENERAL

Material/finish ................................... Polystyrene/Metal

AC Power ........................... 110 – 127 / 220 – 240 V;

....................................................... 50/60 Hz Switchable

Power Consumption

Active ......................................................................... 90 W

Standby .................................................................. d 15 W

Dimensions (w x h x d) .. 265 x 310 x 367 (mm)

Weight (without speakers) ................................. 9.1 kg

TUNER

FM wave range ................................... 87.5 – 108 MHz

MW wave range (9 kHz) ............. 531 – 1602 kHz

MW wave range (10 kHz)........... 530 – 1700 kHz

Tuning grid ............................................................ 9/10 kHz

Number of presets ........................................................ 40

Antenna

FM ....................................................................... 75 : wire

MW ............................................................ Loop antenna

USB PLAYER

USB ................................................................. 12 Mb/s, V1.1

......................................... support MP3 and WMA files

Number of albums/folders ................. maximum 99

Number of tracks/titles ...................... maximum 400

MEASUREMENT SETUP

Tuner FM

1-4

Bandpass

LF Voltmeter

e.g. PM2534

RF Generator

e.g. PM5326

DUT

250Hz-15kHz

e.g. 7122 707 48001

Ri=50Ω

S/N and distortion meter

e.g. Sound Technology ST1700B

Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).

Tuner AM (MW,LW)

RF Generator

e.g. PM5326

Ri=50Ω

DUT

Frame aerial

e.g. 7122 707 89001

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

S/N and distortion meter

e.g. Sound Technology ST1700B

To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.
Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).

CD

Use Audio Signal Disc
(replaces test disc 3)

DUT

SBC429 4822 397 30184

L

R

S/N and distortion meter

e.g. Sound Technology ST1700B

LEVEL METER

e.g. Sennheiser UPM550

-

SERVICE AIDS

1-5

Service Tools:

Universal Torx driver holder .................................4822 395 91019

Torx bit T10 150mm ...........................................4822 395 50456

Torx driver set T6-T20 .........................................4822 395 50145

Torx driver T10 extended .....................................4822 395 50423

GB

All ICs and many other semi-conductors are
susceptible to electrostatic discharges (ESD).
Careless handling during repair can reduce life
drastically.
When repairing, make sure that you are
connected with the same potential as the mass
of the set via a wrist wrap with resistance.
Keep components and tools also at this
potential.

WARNING

GB

Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified,
be used

Safety components are marked by the symbol

!

.

Compact Disc:

SBC426/426A Test disc 5 + 5A ...........................4822 397 30096

SBC442 Audio Burn-in test disc 1kHz .................4822 397 30155

SBC429 Audio Signals disc .................................4822 397 30184

Dolby Pro-logic Test Disc ....................................4822 395 10216

ESD

CLASS 1

LASER PRODUCT

Lead free

INSTRUCTIONS ON CD PLAYABILITY

Customer complaint

"CD related problem"

Set remains closed!

check playability

1

1-6

playability

ok ?

Y

Play a CD

for at least 10 minutes

check playability

playability

ok ?

Y

N

"fast" lens cleaning

check playability

playability

ok ?

N

3

For flap loaders (= access to CD drive possible)
cleaning method

4 is recommended

Standard repair procedure

N

Y

clean the lens

check playability

playability

ok ?

check "EYE-Pattern"

4

Y

N

5

return set

add Info for customer

"SET OK"

return set

1 - 7

For description - see following pages

2

replace Signal Processor

return set

EYE-Pattern

ok ?

Y

check Laser current

Laser current

ok ?

Y

check CD Drive offsets

Y

CD Drive offsets

ok ?

N

replace CD Drive

6

return set

N

replace CD Drive

7

return set

N

replace CD Drive

return set

INSTRUCTIONS ON CD PLAYABILITY

1-7

1

PLAYABILITY CHECK

For sets which are compatible with CD-RW discs

use CD-RW Printed Audio Disc....................7104 099 96611

TR 3 (Fingerprint)
TR 8 (600µ Black dot) maximum at 01:00

• playback of these two tracks without audible disturbance
playing time for: Fingerprint ≥10seconds

Black dot from 00:50 to 01:10

• jump forward/backward (search) within a reasonable time

For all other sets

use CD-DA SBC 444A..................................4822 397 30245

TR 14 (600µ Black dot) maximum at 01:15
TR 19 (Fingerprint)
TR 10 (1000µ wedge)

• playback of all these tracks without audible disturbance
playing time for: 1000µ wedge ≥10seconds

Fingerprint ≥10seconds
Black dot from 01:05 to 01:25

• jump forward/backward (search) within a reasonable time

4

LIQUID LENS CLEANING

Before touching the lens it is advised to clean the
surface of the lens by blowing clean air over it.
This to avoid that little particles make scratches on
the lens.

Because the material of the lens is synthetic and coated
with a special anti-reflectivity layer, cleaning must be done
with a non-aggressive cleaning fluid. It is advised to use
“Cleaning Solvent B4-No2”, available with codenumber
4822 389 10026.

The actuator is a very precise mechanical component and
may not be damaged in order to guarantee its full function.
Clean the lens gently (don’t press too hard) with a soft and
clean cotton bud moistened with the special lens cleaner.

The direction of cleaning must be in the way as indicated in
the picture below.

2

CUSTOMER INFORMATION

It is proposed to add an addendum sheet to the set which
informs the customer that the set has been checked
carefully - but no fault was found.
The problem was obviously caused by a scratched, dirty or
copy-protected CD. In case problems remain, the customer
is requested to contact the workshop directly.
The lens cleaning (method 3) should be mentioned in the
addendum sheet.

The final wording in national language as well as the printing
is under responsibility of the Regional Service Organizations.

3

FAST LENS CLEANING (dry brush)

Use lens cleaning CD

SBC AC300...........................................9082 100 00043

Insert the lens cleaning CD, press PLAY and follow the
voice guide´s instructions on the CD.

Sanyo DA12T3

CD Drive

A

A

F

C

B

E

C

D

E

VCC

B

VREF

F

D

9

10

11

12

13

14

15

16

1800

+5V_HF

VrefCD10

A

D

E

B

C

F

GND

8

E

D

A

B

C

F

Laser power control

100n

2878

470n

2876

3821

1R

1K

3823

2880

33p

+5V

BC807-40

7879

3817

47R

3820

4R7

47R

3819

1n

2879

2877

47u

1

8

4

7811-A

LM358D

3

2

10K

3822

47R

3818

2841

100n

47n

2869

+5V_HF

LASER DIODE

U >250mV

->Laser damaged !

4,6V

3V

3,3V

3,9V

2V

0,17V

0,17V

Sanyo
DA12T3

HF-Amplifier

D3

D2

D1

680R

3905

3903
3K3

BC847B

7877

47n

2818

1K5

3902

5

7

4

2

1

6

3

64

8

9

10

11

470R

3893

+3.3V

2K2

3908

10K

3923

BC847B

7878

BC847B

7876

4n7

2813

3896
100R

220u

2885

2881
560p

47n

2887

560R

3901

2883
470n

2817

4u7

3n3

2814

3898
220R

3895

27K

470n

2884

+3.3V

3909

820R

3907

100R

3920

33K

3897

2882

82p

3K3

3904

2K7

3899

3906

470R

+5V_HF

HFIN

VrefCD10

100p

28152816

22n

LDON
to 3826,3827

VREF GE

VDDA1

VRIN

VSSA1

ISLICE

LD

ON

D1

D2

D3

D4

HFIN

HFREF

IREF

CD_DA: 0V / CD_RW: 3V

Σ (A-D)

800mVpp

TB = 0.5µs/div

EYE-PATTERN

1,8V

1,2V

2,4V

2,6V

0,65V

INSTRUCTIONS ON CD PLAYABILITY

1-8

5

EYE-PATTERN SIGNAL – JITTER MEASUREMENT

Measure the signal on the input of the Signal processor
using an analog oscilloscope. Please find the exact
measuring point in your Service Manual.

See below examples of the signal. Amplitude should read at
least 700mVpp using SBC444A.

6

CD DRIVE – LASER CURRENT MEASUREMENT

The laser current can be measured as a voltage drop on a
resistor. The resistor is marked in every Service Manual.
The value depends on the type of CD drive.

typical value most probably defect

VAMxxxx : 150-230mV ≥350mV
MCDxx : 170-230mV ≥300mV
DA1x : 210-250mV ≥350mV
DA2x : 175-200mV ≥250mV
Use SBC444A (CD-DA) for measurement.

If the oscilloscope shows a signal like the ‘bad’ one, and/or
the amplitude decreases within 1 minute - the CD drive has
to be replaced.

good

bad

7

CD DRIVE – OFFSET MEASUREMENT

The photodiodes of the CD-drive may have an offset. These
offsets have to be compensated by the signal processor.
High offsets can lead to poor playability of some CDs
(skipping tracks).

To measure the offset values, start the Service Test
Program - section “Focus Test” without a CD.

The offsets can be measured with a DC Millivoltmeter
directly on the connector (see drawing below). Pin
numbering varies from drive to drive.

The values from diode A-D should read 0±10mV.
Diodes E and F are less critical.

If one of the offsets is higher than ±10mV the CD drive has
to be replaced. Otherwise replace the Signal Processor.

DISMANTLING INSTRUCTIONS

2-1

2-1

Dismantling of the CDC Module and Front Panel

1) Loosen 4 screws to remove the Cover T op of the set.

2) Loosen 2 screws to remove the Panel Left and 2 screws
to remove the Panel Right of the set.

3) Slide out the CDC Tray as shown in the diagram below with
the help of a flat head screw driver.

Dismantling of the CDC Module and Front Panel

4) Remove the Cover Tray CDC as indicated.

Sliding Out The CDC Tray

Remove Cover Tray CDC

5) Loosen 2 screws A and 2 screws B to remove the CDC
Module as indicated.

6) Remove 2 screws at the bottom to separate the
Front Panel Assembly from the Plate Bottom .

Front View CDC

Remove CDC Module

SET BLOCK DIAGRAM

4-1

4-1

74HCT04D + HEF4013BT

SET WIRING DIAGRAM

4-2

4-2

5-1 5-1

PCB LAYOUT - FRONT BOARD (TOP VIEW)

5-2 5-2

PCB LAYOUT - FRONT BOARD (BOTTOM VIEW)

5-4

5-4

CIRCUIT DIAGRAM - FRONT BOARD

C238

C238

470pF

470pF

JUMP15MM

JUMP16

JUMP16

JUMP6
TP223TP223
TP224TP224
TP225TP225
TP226TP226
TP227TP227
TP228TP228

CON_6PIN_FFC_1.27mm

CON_6PIN_FFC_1.27mm

TP208TP208
TP209TP209
TP210TP210
TP211TP211
TP212TP212
TP213TP213
TP214TP214
TP215TP215
TP216TP216
TP217TP217
TP218TP218
TP219TP219
TP220TP220
TP221TP221
TP222TP222

TP229TP229
TP230TP230 TP1TP1
TP231TP231

CON_4PIN_FFC_1.27mm

CON_4PIN_FFC_1.27mm

CN201

CN201

6

P6

5

P5

4

P4

3

P3

2

P2

1

P1

CN202

CN202

1

P1

2

P2

3

P3

4

P4

5

P5

6

P6

7

P7

8

P8

9

P9

10

P10

11

P11

12

P12

13

P13

14

P14

15

P15

CON_15PIN_FFC_1mm27

CON_15PIN_FFC_1mm27

CN206

CN206

1

P1

2

P2

3

P3

4

P4

MIC1_DET

JUMP20 JUMP20MMJUMP20 JUMP20MM

MIC2_DET

JUMP21 JUMP20MMJUMP21 JUMP20MM
JUMP22 JUMP12.5MMJUMP22 JUMP12.5MM

REMOTE

F1_JU
F1

JUMP24 JUMP20MMJUMP24 JUMP20MM

JUMP30 JUMP7MM5JUMP30 JUMP7MM5

R267

R267

22K

22K

GND

REMOTE
VFD_CS
VFD_CLK
VFD_DATA

AD0
AD4
JOG1
JOG2

MIC1_DET
MIC2_DET

+3V3_CON

R242 10KR242 10K

R232 10KR232 10K

MIC1_DET
MIC2_DET

GND

R272

R272
330

330

R273

R273
330

330

JUMP17JUMP12.5MM JUMP17JUMP12.5MM
JUMP1JUMP20MM JUMP1JUMP20MM

+3V3_CON
LPC

NTC

GND

LPC
NTC

F2

F1

GND

C222

C222

0.1uF

0.1uF

ZD201

ZD201

5.6V

5.6V

-VKK

JUMP19
AD4

STANDBY_LED
MAX_LED
HP_GND

NTC
LPC

VFD_CLK

VFD_DATA

1

4

JUMP6

JUMP23 JUMP20MMJUMP23 JUMP20MM

JUMP25 JUMP12.5MMJUMP25 JUMP12.5MM

JUMP26 NCJUMP26 NC

GND

JUMP19 JUMP20MMJUMP19 JUMP20MM
JUMP7 JUMP20MMJUMP7 JUMP20MM

JUMP15

JUMP15

JUMP14 JUMP20MMJUMP14 JUMP20MM

JUMP13 JUMP12.5MMJUMP13 JUMP12.5MM

JUMP8 JUMP17.5MMJUMP8 JUMP17.5MM

JUMP9 JUMP17.5MMJUMP9 JUMP17.5MM
JUMP11 JUMP20MMJUMP11 JUMP20MM

JUMP12 JUMP20MMJUMP12 JUMP20MM

VFD_CS

JUMP10 JUMP20MMJUMP10 JUMP20MM

JOG2

JUMP3 JUMP12.5MMJUMP3 JUMP12.5MM

JOG2

JUMP4 JUMP12.5MMJUMP4 JUMP12.5MM

JOG1

JUMP2 JUMP12.5MMJUMP2 JUMP12.5MM

JOG200

JOG200
JOG

JOG

VOLUME

2

GND

JUMP15MM
JUMP15MM

JUMP15MM

JUMP20MM

JUMP20MM

GND

GND

-VKK

JUMP18 JUMP12.5MMJUMP18 JUMP12.5MM

-VKK

-VKK

JUMP28 JUMP12.5MMJUMP28 JUMP12.5MM

F2_JU

JUMP29 JUMP12.5MMJUMP29 JUMP12.5MM

C201

C201
47uF

47uF

D200D200

D201D201

JUMP27 JUMP20MMJUMP27 JUMP20MM

+3V3_CON

C200

C200

+

+

0.1uF

0.1uF

C203

C203

100pF

100pF

GND

ECO:100R

R237 NCR237 NC

R200 100R200 100

IR200

IR200

123

STANDBY

MAX

TSOP34138

TSOP34138

+3V3_CON

L201

L201

10uH

10uH

STANDBY_LED

MAX_LED

-VKK

C206

C206

47uF

47uF

GND

+

+

C205

C205

0.1uF

0.1uF

C239

C239
C240

C240
C241

C241
C242

C242
C243

C243
C244

C244
C245

C245
C246

C246
C247

C247
C248

C248
C249

C249

12

13

VSS1

VDD1

SG1/KS114SG2/KS215SG3/KS316SG4/KS417SG5/KS518SG6/KS619SG7/KS720SG8/KS821SG9/KS9

11

K2

10

R240

R240

100

100

R241100 R241100
R243100 R243100

MAX_LED
STANDBY_LED

R213100 R213100
R234200K R234200K

3

C232 22pFC232 22pF

C231 22pFC231 22pF

C230 22pFC230 22pF

C221

C221

0.1uF

0.1uF

K1

9

STB

8

CLK

7

DIN

6

DOUT

5

OSC

4

LED4

3

LED3

2

LED2

1

LED1

U200

U200

PT6315-LQFP

PT6315-LQFP

VSS244VDD243GR142GR241GR340GR439SG24/GR538SG23/GR637SG22/GR736SG21/GR835SG20/GR9

5

C204

C204

0.1uF

0.1uF

GND

R254

R254

2K2

2K2

0.873V 1.211V 2.108V

SW222

SW222
VAC

VAC

AUX

AUX
SW209

SW209

0.873V 1.211V 1.806V

R259

R259

2K2

2K2

R263

R263

2K7

2K7

SW223

SW223

PROGRAM

PROGRAM

ALBUM+

ALBUM+
SW213

SW213

R265

R265

2K7

2K7

1.516V 1.806V 2.380V 2.709V 2.979V 3.151V0V 0.3V

SW224

SW224
DBB

DBB

TITLE-

TITLE­SW217

SW217

1.516V

R248

R248

3K6

3K6

GND

R260

R260

3K6

3K6

GND

R253

R253

100

100

0.022uF

0.022uF
C220

C220

C219

C219

0.022uF

0.022uF

R258

R258

100

100

R2641KR264

1K

RECORD

RECORD
SW214

SW214

TUNER

TUNER
SW208

SW208

0V 0.3V

R2381KR238

1K

R2611KR261

1K

REPEAT

REPEAT
SW216

SW216

CD
SW206CDSW206

R2571KR257

1K

GND

0.572V

R239

R239

1K5

1K5

R262

R262

1K5

1K5

0.572V

STANDBY

STANDBY
SW218

SW218

USB

USB
SW207

SW207

G1
G2

470pF

470pF

G3

470pF

470pF

G4

470pF

470pF

G5

470pF

470pF

G6

470pF

470pF

G7

470pF

470pF

G8

470pF

470pF

G9

470pF

470pF
470pF

470pF

G10

470pF

470pF

G11

470pF

470pF

G12

R251

R251

5K6

5K6

SW215

SW215

PLAY/PAUSE

PLAY/PAUSE

TITLE+

TITLE+
SW220

SW220

R215 1KR215 1K
R216 1KR216 1K
R217 1KR217 1K
R218 1KR218 1K
R219 1KR219 1K
R220 1KR220 1K
R221 1KR221 1K
R222 1KR222 1K
R223 1KR223 1K

22

SG10/KS10
SG11/KS11
SG12/KS12
SG13/KS13
SG14/KS14
SG15/KS15
SG16/KS16

VEE
SG17/GR12
SG18/GR11
SG19/GR10

34

R255

R255

8K2

8K2

SW221

SW221
ALBUM-

ALBUM-

C250

C250
C251

C251
C252

C252
C253

C253
C254

C254
C255

C255
C256

C256
C257

C257
C258

C258
C259

C259
C260

C260
C261

C261
C262

C262
C263

C263
C264

C264
C265

C265

GND

470pF

470pF

P1

470pF

470pF

P2

470pF

470pF

P3
P4

470pF

470pF
470pF

470pF

P5

470pF

470pF

P6
P7

470pF

470pF

P8

470pF

470pF

P9

470pF

470pF

P10

470pF

470pF

P11

470pF

470pF

P12

470pF

470pF

P13

470pF

470pF

P14

470pF

470pF

P15

470pF

470pF

P16

470pF

470pF

GND

23
24
25
26
27
28
29
30
31
32
33

L202 10uHL202 10uH

+

+

C233

C233
22uF

22uF

GND

R250

R250

20K

20K

STOP

STOP
SW219

SW219

CON_4PIN_FFC_1.27mm

CON_4PIN_FFC_1.27mm

R274 3R3 1WR274 3R3 1W

F1

R270 NCR270 NC

C266

C266

4.7uF

4.7uF

R245

R245

47K

47K

MAX

MAX
SW210

SW210

CN203

CN203

4

P4

3

P3

2

P2

1

P1

VFD201 VFD_AV_38P

VFD201 VFD_AV_38P

VFD_AV_38P

VFD_AV_38P

Fila11Fila22Fila33NoPin14P165P156P147P138P129P1110P1011P912P813P714P615P516P417P318P219P120NoExt121NoExt22212G2311G2410G259G268G277G286G295G304G313G322G331G34NoPin235Fila436Fila537Fila6

38

P10

P11

P12

P13

P14

P9P8P7P6P5P4P3P2P1

L205 2.2uHL205 2.2uH

C234

C234
2200pF

2200pF

+

+

4.7uF

4.7uF

-VKK

SW211

SW211
CLOCK

CLOCK

R252

R252

120K

120K

G1G2G3G4G5G6G7G8G9

R2021K R2021K

R2031K R2031K

R2011K R2011K

R2041K R2041K

SW212

SW212
DSC

DSC

GND

F1_JU

C267

C267

+

+

TP207TP207
TP206TP206

G10

G11

G12

R2091K R2091K

R2101K R2101K

R2121K R2121K

R2071K R2071K

R2081K R2081K

+3V3_CON

R2112K2 R2112K2

R266

R266
5K6

5K6

1

C235

C235
2200pF

2200pF

L204 2.2uHL204 2.2uH
L203 2.2uHL203 2.2uH

Q1

Q1
BC817-25

BC817-25

R2051K R2051K

R2061K R2061K

2 3

HP_GND HP_GND

P15

R2281K R2281K

R2271K R2271K

R2251K R2251K

R2241K R2241K

R2261K R2261K

HP_GND

C236 100pFC236 100pF

J201

J201
Phone Jack

Phone Jack

9
7
8

CON_4PIN_FFC_1.27mm

CON_4PIN_FFC_1.27mm

P16

F2_JU

+

+

+

+

GND

R2301K R2301K

R2291K R2291K

C237 22pFC237 22pF

345

6

HP_GND

4
3
2
1

CN205

CN205

R275 3R3 1WR275 3R3 1W

R271 NCR271 NC

C268

C268

4.7uF

4.7uF

C269

C269

4.7uF

4.7uF

P4
P3
P2
P1

F2

TP236TP236
TP235TP235
TP234TP234
TP233TP233

HP_RIGHT
HP_GND
HP_LEFT
HP_DET