Philips AZ-1150 Service Manual

Handling chip components ............................................................1-1

Technical specification...................................................................1-2

Service tools..................................................................................1-2

Service measurement setup..........................................................1-3

Connections and controls......................................................2-1...2-2

Disassembly diagram ....................................................................3-1

Service Test Program....................................................................4-1

Pin description of ICs.............................................................4-2...4-3

Set block diagram..........................................................................5-1

Set wiring diagram.........................................................................5-2

KEY BOARD

circuit diagram ..........................................................................6-1

layout diagram..........................................................................6-1

FRONT BOARD

circuit diagram ..........................................................................7-1

layout diagram..........................................................................7-2

FEATURE BOARD

circuit diagram ..........................................................................8-1

layout diagram..........................................................................8-2

TUNER BOARD

circuit diagram ..........................................................................9-1

layout diagram..........................................................................9-2

tuner adjustment table..............................................................9-2

CD99/MP3 BOARD

circuit diagram I ......................................................................10-1

circuit diagram II .....................................................................10-3

layout diagram........................................................................10-4

MP3 DECODER BOARD

circuit diagram ........................................................................11-1

layout diagram........................................................................11-2

AMPLIFIER BOARD

circuit diagram ........................................................................12-1

layout diagram........................................................................12-2

SUPPLY BOARD

circuit diagram ........................................................................13-1

layout diagram........................................................................13-2

Exploded view..............................................................................14-1

Mechanical partslist.....................................................................14-2

Electrical partslist.............................................................15-1...15-11

© 3140 785 22691

Published by YT 0141 Service Audio Printed in The Netherlands Subject to modification

MP3-CD Soundmachine

AZ1150
AZ1155

all versions

TABLE OF CONTENTS

©

Copyright 2001 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.

CLASS 1

LASER PRODUCT

HANDLING CHIP COMPONENTS

© WARNING

All ICs and many other semiconductors 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 wristband with
resistance. Keep components and tools at this potential.

f ATTENTION

Tous les IC et beaucoup d´autres semi-conducteurs sont
sensibles aux décharges statiques (ESD). Leur longévite
pourrait être considérablement écourtée par le fait qu´aucune
précaution nést prise à leur manipulation.
Lors de réparations, s´assurer de bien être relié au même
potentiel que la masse de l´appareil et enfileer le bracelet
serti d une résistance de sécurité.
Veiller à ce que les composants ainsi que les outils que l´on
utilise soient également à ce potentiel.

d WARNUNG

Alle ICs und viele andere Halbleiter sind empfindlich
gegenüber elektrostatischen Entladungen (ESD).
Unsorgfältige Behandlung im Reparaturfall kann die
Lebensdauer drastisch reduzieren.
Sorgen Sie dafür, daß Sie im Reparaturfall über ein Puls­armband mit Widerstand mit dem Massepotential des
Gerätes verbunden sind.
Halten Sie Bauteile und Hilfsmittel ebenfalls auf diesem
Potential.

ñ WAARSCHUWING

Alle IC´s en vele andere halfgeleiders zijn gevoelig voor
electrostatische ontladingen (ESD).
Onzorgvuldig behandelen tijdens reparatie kan de levensduur
drastisch doen vermindern. Zorg ervoor dat u tijdens reparatie
via een polsband met weerstand verbonden bent met hetzelfde
potentiaal als de massa van het apparaat.
Houd componenten en hulpmiddelen ook op ditzelfde potentiaal.

i AVVERTIMENTO

Tutti IC e parecchi semi-conduttori sono sensibili alle scariche
statiche (ESD).
La loro longevità potrebbe essere fortemente ridatta in caso di
non osservazione della più grande cauzione alla loro
manipolazione. Durante le riparationi occorre quindi essere
collegato allo stesso potenziale che quello della massa
delápparecchio tramite un braccialetto a resistenza.
Assicurarsi che i componenti e anche gli utensili con quali si
lavora siano anche a questo potenziale.

©

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

i

Le norme di sicurezza estigono che l´apparecchio venga
rimesso nelle condizioni originali e che siano utilizzati i
pezzi di ricambiago identici a quelli specificati.
Componenty di sicurezza sono marcati con

ñ

Veiligheidsbepalingen vereisen, dat het apparaat in zijn
oorspronkeliijke toestand wordt teruggebracht en dat
onderdelen, identiek aan de gespecificeerde, worden toegepast.
De Veiligheidsonderdelen zijn aangeduid met het symbool

s Varning !

Osynlig laserstrålning när apparaten är öppnad och
spärren är urkopplad. Betrakta ej strålen.

∂ Advarsel !

Usynlig laserstråling ved åbning når sikkerhedsafbrydere
er ude af funktion. Undgå udsaettelse for stråling.

ß Varoitus !

Avatussa laitteessa ja suojalukituksen ohitettaessa olet alttiina
näkymättömälle laserisäteilylle. Älä katso säteeseen !

f

"Pour votre sécurite, ces documents doivent être utilisés par
des spécialistes agréés, seuls habilités à réparer votre
appareil en panne".

ESD

SAFETY

d

Bei jeder Reparatur sind die geltenden Sicherheitsvor­schriften zu beachten. Der Originalzustand des Gerätes
darf nicht verändert werden. Für Reparaturen sind Original­ersatzteile zu verwenden.
Sicherheitsbauteile sind durch das Symbol markiert.

f

Les normes de sécurité exigent que l`appareil soit remis
à l`état d`origine et que soient utilisées les pièces de
rechange identiques à celles spécifiées.
Les composants de sécurité sont marqués

CLASS 1

LASER PRODUCT

©

DANGER: Invisible laser radiation when open.

©

After servicing and before returning the set to customer
perform a leakage current measurement test from all
exposed metal parts to earth ground, to assure no
shock hazard exists.
The leakage current must not exceed 0.5mA.

AVOID DIRECT EXPOSURE TO BEAM.

1-1

SPECIFICATIONS

GENERAL

Mains voltage -/00 : 230 V

-/01 : 120 / 230 V

-/05 : 240 V

-/17 : 120 V

Mains frequency -/00/05 : 50 Hz

-/01 : 50 / 60 Hz

-/17 : 60 Hz

Battery mains : 9 V (R14 x 6)

remote : 3 V (R6 x 2)
Power consumption : 35 W
Dimension (W x H x D) : 404 x 194 x 314 mm
Weight : 3.1 Kg

AMPLIFIER

Output power mains : 2 x 1.6 W

battery : 2 x 1.2 W
Speaker impedance : 2 x 8 ohm, 8W
Frequency response : 100 Hz - 10 kHz (±3dB)

COMPACT DISC

Frequency response : 100 Hz - 10 kHz
S/N ratio : 60 dB
Channel difference 1 kHz : 2 dB
Channel crosstalk 1 kHz : 40 dB
Laser wavelength : 780 ± 20 nm
Laser light power : < 0.3 mW

TUNER - FM SECTION

Tuning range : 87.5 - 108 MHz
IF frequency : 10.7 MHz ± 0.03 MHz
Sensitivity : 18 dB at 26dB S/N
Selectivity : 24 dB at 300kHz
IF rejection : 85 dB
Image rejection : 24 dB

TUNER - AM SECTION

Tuning range MW : 531 - 1602 kHz

-/17 : 530 - 1700 kHz
LW : 153 - 279 kHz

Sensitivity MW : 3200 µV/m at 26dB S/N

LW : 5500 µV/m at 26dB S/N

Selectivity MW : 22 dB

LW : 29 dB

IF rejection MW : 60 dB

LW : 60 dB

Image rejection MW : 32 dB

LW : 38 dB

1-2

SERVICE TOOLS

Audio signal disc SBC 429.......................................................................4822 397 30184

Playability test disc SBC 444

...................................................................4822 397 30245

Test disc 5 (disc without errors ) +
Test disc 5A (disc with dropout errors, black spots and fingerprints)

SBC 426/426A.....................................................................4822 397 30096

Burn in test disc (65 min. 1kHz signal at -30 dB level without “pause”)

.....4822 397 30155

anti-static table mat

large 1200x650x1.25mm 4822 466 10953

small 600x650x1.25m 4822 466 10958

anti-static wristband

4822 395 10223

connection box (3 press stud connections, 1MΩ) 4822 320 11307
extendible cable (2m, 2MΩ, to connect wristband to connection box) 4822 320 11305
connecting cable (3m, 2MΩ, to connect table mat to connection box) 4822 320 11306
earth cable (1MΩ, to connect any product to mat or to connection box) 4822 320 11308
KIT ESD3 (combining all 6 prior products - small table mat) 4822 310 10671
wristband tester 4822 344 13999

AVAILABLE ESD PROTECTION EQUIPMENT

1-3

SERVICE MEASUREMENT

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

DUT

RF Generator

e.g. PM5326

S/N and distortion meter

e.g. Sound Technology ST1700B

Tuner SW

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).

Ri=50Ω

Aerial replacement

Capacitor

R=50Ω

Bandpass

250Hz-15kHz

e.g. 7122 707 48001

LF Voltmeter

e.g. PM2534

DUT

S/N and distortion meter

e.g. Sound Technology ST1700B

Frame aerial

e.g. 7122 707 89001

Tuner AM (MW,LW)

To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.

RF Generator

e.g. PM5326

Ri=50Ω

Low pass filter 22kHz

L

R

LEVEL METER

e.g. Sennheiser UPM550

with FF-filter

S/N and distortion meter

e.g. Sound Technology ST1700B

DUT

CD

Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3)
L.P.F. = 13

th

order filter 4822 395 30204

2-1

CONTROLS

&*

)

(

AC MAINSAC MAINS

12^

3

4

5

6

#

$

%

7

90!

@

8

Top and front panels

1 2; – starts or pauses MP3-CD/CD playback

2 OPEN•CLOSE – press to open/close CD door

3 BAND – selects FM/MW (AM)

4 PROGRAM

– MP3-CD/CD: programs/ reviews programmed tracks;
– TUNER: programs tuner stations

5 CD MODE

– plays MP3-CD tracks/CD/a program in random order
– repeats a track/MP3-CD/CD/ program

6 + ALBUM, PRESET

– MP3-CD only: selects next album
– TUNER: selects the next preset station

7 ROTARY NAVIGATION 5 , 6

– MP3-CD/CD: fast searches backwards, forwards within a track
– TUNER: tunes radio (manually: down, up)

¡ , ™
– MP3-CD/CD: skips to previous, next title/track
– TUNER: automatic search tuning
(down, up)

8 STOP 9 – stops MP3-CD/CD playback; erases a MP3-CD/CD

program

9 IR SENSOR (AZ1155 models only)

– infrared for remote control

10 Display – backlit only when using AC mains supply

– MP3-CD: orange backlight
– TUNER/CD: green backlight

11 - ALBUM, PRESET

– MP3-CD only: selects previous album
– TUNER: selects previous preset station

12 SOURCE – selects sound source for MP3-CD/CD or TUNER

13 POWER – switches the set on/ off

14 LOW BATT – indicator lights up if battery power running low

15 ULTRABASS 2 – enhances bass response

16 VOLUME – adjusts volume level

Back Panel

17 Telescopic aerial – to improve FM reception

18 Voltage selector – (inside the battery compartment, not all

versions) adjust to match the local voltage 110/220V before
plugging in the set

19 AC MAINS – inlet for mains lead

20 Battery door – open to insert 6 x R-14, UM-2 or C-cells

2-2

REMOTE CONTROL

DIGITAL REMOTE CONTROL (for AZ1155
model only)

1CD– selects MP3-CD/CD sound source

2 y – switches the set to standby

3 + VOLUME - – adjusts volume level (up down)

4 SHUFFLE – plays all MP3-CD/CD tracks in random order

5 BASS – selects ULTRABASS 2 on/off

6 2; – starts MP3-CD/CD playback

– pauses MP3-CD/CD playback

7 SEARCH 5 , 6 – fast searches backwards, forwards within a

track

8 BAND – selects FM/MW (AM) waveband

9 PRESET 3 , 4 (up, down)

MP3-CD : selects an album
TUNER : selects a preset radio station

10 TUNING ∞ , § (down, up) – tunes to tuner stations

11 TUNER – selects tuner sound source

12 9 – stops MP3-CD/CD playback;

– erases a MP3-CD/CD program

13 ¡ , ™ – skips to the beginning of a current track previous/

subsequent track

14 MUTE – interrupts/ resumes sound

15 REPEAT – repeats a track/ program/ entire MP3-CD/CD

Power Supply

Whenever convenient, use the mains supply if you want to
conserve battery life. Make sure you remove the plug from the set
and wall socket before inserting batteries.

Batteries (not included)

1 Open the battery compartment and insert six batteries, type R-

14, UM-2 or C-cells, (preferably alkaline) with the correct

polarity as indicated by the "+" and "–" symbols inside the
compartment.

• Remote control (AZ1155 model only)

Open the battery
compartment and
insert 2 batteries,
type AAA, R03
or UM4
(preferably

alkaline).

2 Replace the compartment door, making sure the batteries are

firmly and correctly in place. The set is now ready to operate.

➜If LOW BATT lights up, battery power is running low. The

LOW BATT indicator eventually goes out if the batteries are
too weak.

Batteries contain chemical substances, so they should be
disposed of properly.

For more information onoperation instruction please visit Philips Audio internet site :
http://www.audio.philips.com

CD

1
%
$

#

REPEAT

MUTE

K

VOLUME

L

B

SHUFFLE

BASS

2
3

4
5
6

@

7
8
9

!

0

TUNER

PRESET

TUNING

SEARCH

BAND

6 x 1.5V R14/ UM2/ C CELL

3-13-1

DISASSEMBLY DIAGRAM

1. TO REMOVE TOP CABINET ASEMBLY

A. Remove Volume Knob (423)
and battery Door (432)
B. Remove screws

7 3x10 - 2 pcs.

(inside CD comprtment)
C. Remove screws

0 3x25 - 6 pcs.

(2 pcs. inside battery compartment)

1C

1A

0(6x)



2. TO REMOVE FRONT CABINET ASSEMBLY

A. Remove screws 8 3x12 - 2 pcs

6 3x8 - 2 pcs.

7(2x)

1B

B. Remove screws

2B

6(2x)

8(2x)

2A

1A

4. TO DISASSEMBLY MAIN CHASSIS ASEMBLY

3. TO REMOVE MAIN CHASSIS ASEMBLY
FROM BOTTOM CABINET

A. Remove Rubber Foot (423) - 2 pcs.
B. Remove screws

8 3x12 - 4 pcs.

(2 pcs. under the rubber foot)

A. Remove feature board

(screws

7 3x10 - 6 pcs.)

B. Remove CD module assembly

(screws

6 3x8 - 4 pcs.)

C. Remove Tuner and key board

(screws

7 3x10 - 8 pcs.)

5. TO DISASSEMBLY SOUND BOX ASSEMBLY

A. Remove Loudspeakers

(screws

6 3x8 - 8 pcs.)

B. Remove Soundbox top

(screws

C. Remove Soundbox top

(screws

0 3x25- 4 pcs.)

8 3x12 - 3 pcs.)

5A

7(4x)

7(6x)

5B

0(4x)

4A

8(3x)

5C

4B

6(4x)

7(8x)

4C

3A

8(4x)

3B

5A

7(4x)

4 - 1 4 - 1

SERVICE TEST PROGRAM

To enter Service

Testprogram hold

CD MODE & UB 2

depressed and

POWER

press

buttons

Door switch is ignored → CD door can be opened.

*

In CD- and Tuner tests the sound settings

*

DSC, IS and DBB

but flags will not be indicated on the display in all steps.

function as in normal mode,

Volume up/down

,

N

ULTRA BASS 2

button

pressed?

Y

Display shows all

segments and flags

for checking open circuits.

see figure 1

N

UB 2

button

pressed?

Y

Display shows figure 2.

STOP

N

button

pressed?

Y

DISPLAY TEST

N

N

FOCUS search

objective moves up&down
disc motor for 300ms "on"

CD SERVO TEST

CD MODE

button

pressed?

Y

Display shows

CD99

PLAY

button

pressed?

Y

Display shows

Err9

FOCUS found?

Y

Display shows

nErr

disc motor turns.

STOP

button pressed in any step returns

to begin of Service Testprogram.

SLIDE MOTOR test

BAND

pressed?

Slide moves

outside as

long as

is held

depressed.

N

NNN

button

YYY

button

CD MODE

button pressed?

Slide moves

inside as

button

long as

is held

depressed.

Display shows
version number
of the µP - software.

S 53

DISC MOTOR test

SOURCE

pressed?

Display shows:

CCC

Disc motor turns

clockwise

as long as button

is held depressed.

stands for Service mode

S

Slide servo, Radial servo, Focus servo, Disc motor
and Laser are switched off.
Mute is switched on via decoder IC.

button

PROG

pressed?

Display shows:

Disc motor turns

counter clockwise

as long as button

is held depressed.

button

Y

N

FORMAT EEPROM

EEPROM is cleared and

default values are stored.

This test should be done at the
end of the production process
so that every set is customised
before leaving factory.

BAND

button

pressed?

Y

Display shows

EPF

for 2s.

TUNER TEST

Y

PROGRAM

N

N

N

PRESET +

button

pressed?

Display shows version

of tuner board as long as

any key will be pressed.

e g

EUR

Tuner is normal working
except for the
button.

POWER

switched off?

Y

Exit Service Testprogram

MP3CD

MW

AM

LW

stereo

stereo

CD

TUNER

program

repeat

title

FM

fig. 1

CD

repeat all

fig. 2

shuffle

all

N

PLAY

button

pressed?

Y

Display shows

DISK

button

Y

button

Y

N

TUNER VERSIONS

PLAY

pressed?

Display shows

rdl

release mute

STOP

pressed?

EUR USA OSE

REGION

&

SET VERSIONS

1)

To toggle frequency grid press

Display will show either or for 2 s.

EUROPE

FM/MW

/00 /05

CD MODE

09 10

button for more than 5s in normal tuner mode (not in service testmode).

USA

FM/MW

/17 /01 /11 /19

table 2

OVERSEAS

FM/MW

1)

Grid switchable

100/10kHz - 50/9kHz

CD ERROR CODES

Error number Error type

E1000 Focus error

E1001 Radial error

E1002 Slide-in error

E1003

E1005 Jump error

E1006

E1007 PLL error

E1008

E1020 Focus search error

Error type

Triggered when the focus is lost during playing the CD.

Triggered when the radial servo is not on track for a certain time during playing the CD.

The sledge did not reach its inner position (innerswitch is closed) before approximately 6
seconds have pressed by - innerswitch or sledgemotor problem.

Slide-out error

The sledge did not come out of its inner position (innerswitch is open) before
approximately 300ms have passed by - innerswitch or sledgemotor problem.

Triggered when the jump destination could not be found within a certain time.

Subcode error

No valid subcode for a certain time during play.

The Phase-Lock-Loop could not lock within a certain time.

Turntable motor error

Generated when the CD could not reach 75% of speed during start-up within a certain
time. Discmotor problem.

The focus point has not been found within a certain time.

W = Warning →

F = Fatal Error

set continues operation, message remains on the display until next error occurs
or any key is pressed.

→ set stops operation, message remains on the display.

Error description

table 1

W

W

W

W

W

W

W

W

F

4 - 24 - 2

Abbreviations and Pin-description of CD Ics

SERVO PROCESSOR SAA7325H

SYMBOL PIN DESCRIPTION

HFREF 1 comparator common mode input
HFIN 2 comparator signal input
ISLICE 3 current feedback output from data slicer
V

SSA1

V

DDA1

I

ref

V

RIN

D1 8 unipolar current input (central diode signal input)
D2 9 unipolar current input (central diode signal input)
D3 10 unipolar current input (central diode signal input)
D4 11 unipolar current input (central diode signal input)
R1 12 unipolar current input (satellite diode signal input)
R2 13 unipolar current input (satellite diode signal input)
V

SSA2

CROUT 15 crystal/resonator output
CRIN 16 crystal/resonator input
V

DDA2

LN 18 DAC left channel differential output - negative
LP 19 DAC left channel differential output - positive
V

neg

V

pos

RN 22 DAC right channel differential output - negative
RP 23 DAC right channel differential output - positive
SELPLL 24 selects whether internal clock multiplier PLL is used
TEST1 25 test control input 1; this pin should be tied LOW
CL16 26 16.9344 MHz system clock output
DATA 27 serial d4(1)ata output (3-state)
WCLK 28 word clock output (3-state)
SCLK 29 serial bit clock output (3-state)
EF 30 C2 error flag output (3-state)
TEST2 31 test control input 2; this pin should be tied LOW
KILL 32 kill output (programmable; open-drain)
V

SSD1

V2/V3 34 versatile I/O: input versatile pin 2 or output versatile pin 3 (open-drain)
WCLI 35 word clock iutput (for data loopback to DAC)
SDI 36 serial data input (for data loopback to DAC)
SCLI 37 serial bit clock input (for data loopback to DAC)
RESET 38 power-on reset input (active LOW)
SDA 39 microcontroller interface data I/O line (open-drain output)
SCL 40 microcontroller interface clock line input

(1)

4

(1)

5

analog ground 1

analog supply voltage 1
6 reference current output pin
7 reference voltage for servo ADC’s

(1)

14

17

(1)

analog ground 2

analog supply voltage 2

20 DAC negative reference input
21 DAC positive reference input

(1)

33

digital ground 2

Abbreviations and Pin-description of CD Ics

SERVO PROCESSOR SAA7325H

SYMBOL PIN DESCRIPTION

RAB 41 microcontroller interface R/W and load control line input (4-wire bus mode)
SILD 42 microcontroller interface R/W and load control line input (4-wire bus mode)
STATUS 43 servo interrupt request line/decoder status register output (open-drain)
TEST3 44 test control input 3; this pin should be tied LOW
RCK 45 subcode clock input
SUB 46 P-to-W subcode bits output (3-state)
SFSY 47 subcode frame sync output (3-state)
SBSY 48 subcode block sync output (3-state)
CL11/4 49 11.2896 MHz or 4.2336 MHz (for microcontroller) clock output
V

SSD2

DOBM 51 bi-phase mark output (externally buffered; 3-state)
V

DDD1(P)

CFLG 53 correction flag output (open-drain)
RA 54 radial actuator output
FO 55 focus actuator output
SL 56 sledge control output
V

DDD2(C)

V

SSD3

MOTO1 59 motor output 1; versatile (3-state)
MOTO2 60 motor output 2; versatile (3-state)
V4 61 versatile output pin 4
V5 62 versatile output pin 5
V1 63 versatile intput pin 1
LDON 64 laser drive on output (open-drain)

Note : All supply pins must be connected to the same external power supply voltage.

50

52

57
58

(1)

(1)

(1)
(1)

digital ground 3

digital supply voltage 2 for periphery

digital supply voltage 3 for core
digital ground 4

4 - 3 4 - 3

CK DIAGRAM OF INTEGRATED CIRCUIT

400 TMP87CM23F

PINS DESCRIPTION OF IC 7400 TMP87CM23F

5 - 15 - 1

SET BLOCK DIAGRAM

+B

CD Supply

+CD

V

From
Processor

From
Processor

5

12

+A_ON

CD99 / MP3-TI

MODULE

+B

(5V4)

ECO6

TUNER MODULE

CD_ON_OFF

V

CD

V

TUNER

VV

+Vc

SOURCE
SELECTOR

V

JOG
Encoder

+B

(5V4)

V

MIXER

V

V

V

Ultrabass

BUFFER

Vc

V

V

VREF1

+A

POWER
ON/OFF

From
Processor

DIGITAL
VOLUME
CONTROL

Vc

+A_ON

+A

MUTE

PWM

ALC

V

BUFFER

V

V

+B

(5V4)

MUTE

V

V

POWER AMP

Ferture Board AF Board

8 OHM

8 W

LCD

+A_ON

LOW BATTERY
INDICATOR

CD_ON_OFF

+µp

EEPROM

2

+A_ON

Backlight

To CD

BKLT

V

To Tuner

MICRO
PROCESSER

(5V4)

+B

IR
receiver

(AZ1155
ONLY)

V

2

+µp +B

PWM

(5V4)

UB II

+Keys

RESET

Front Board

JOG
RING

Mute

UB II

V

Mute

V

Transformer

ON_OFF

+µp

V

+A+A_ON+B (5V4)+C

~

+

-

~

Voltage Selector
/01 Only

Mains

VOLTAGE

REGULATOR

6X1.5 V

9

+Keys

Keys
(CD mode,
Band, Program)

Key Board

Power Supply Board

5 - 2 5 - 2

WIRING DIAGRAM

CD DOOR

LATCH SWITCH

KEY

BOARD

1

CD99/MP3-TI

1

FRONT BOARD

Jog

Switch

1

1

11

1

1

1

1

Backlight

1

1

FEATURE BOARD

BOARD

1

8802

1

1900

MP3 DECODER

BOARD

1

1

1

AMPLIFIER BOARD

1

POWER

BOARD

ECO-6-PA

1

SECONDARY

TRANSFORMER

(for non /01 /11)

PRIMARY

(for /01 /11)

PRIMARY

(for /01 /11)

(for /01 /11)

6 - 16 - 1

CIRCUIT DIAGRAM - KEY BOARD

1990 A2
1991 A4

1992 C4
1993 C2

1994 C3
1995 C3

2990 C4
3990 C2

12345

A

1990

EH-S

TO CD MODULE

B

3991 C3
3992 C3

1

T992

2

T990 A2
T991 A4

T992 B2
T993 B4

T994 C4
T995 C4

CD DOOR SWITCH

T991T990

T993

1991

1

2

EH-S

FROM CD DOOR

A

B

KEY BOARD - LAYOUT DIAGRAM

12 3

12 3

A

A

B

B

1994 A21993 A3 1995 A21992 A11991 A11990 B1

A

B

C

D

1992

PH-S

1

2

TO FRONT BOARD

#

FORESEEN ONLY

BAND

1993
SKQNAB

3990

1K5

3991

1K

1994
SKQNAB

CD MODEPROGRAM

3992

470R

1995
SKQNAB

#

2990

10n

T994
T995

12345

C

D

12 3

12 3

2990 A3 3990 A1 3991 A2 3992 A3

12 3

A

3990

B

2990
3992

A

3991

B

12 3