Philips AZ-1750 Service Manual

CD Soundmachine

AZ1750

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CONTENTS

Version variation and technical specification .........................1-1..1-2

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

Service aids .................................................................................1-4

Instructions on CD playability ...............................................2-1.. 2-2

Block diagram ................................................................................3-1

Wiring diagram ..............................................................................4-1

Main/Tuner/Control board

Circuit diagram ..................................................................5-1..5-3

Layout diagram ..................................................................5-4..5-5

Exploded view diagram .................................................................6-1

Revision list ...................................................................................7-1

©

Copyright 2011 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 GD 1151 Service Audio Subject to modification

Version 1.0

3141 785 37120

VERSION VARIATION

Type /Versions:

Board in used:

Service policy

CONTROL BOARD
TUNER BOARD

MAIN BOARD

Type /Versions:

Features

Feature diffrence

RDS

VOLTAGE SELECTOR
ECO STANDBY - DARK

* TIPS : C -- Component Lever Repair.

M -- Module Lever Repair

-- Used

AZ1750

/12

(APMEA)

M/C
M/C
M/C

AZ1750

/12

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3Description

Pos.

Battery location

CABINET

Dimensions with Boxes (W x D x H): 416x131x236 mm Material ABS/HIPS
Dimensions without Boxes: 416x131x236 mm (W x D x H ) Finishing:

Weight (including packing):. 1.8 kg
Weight (excluding packing and batteries): 1.5kg

Unit in Mastercarton: N/A 35
Units in Dealercarton: 1 set 36

Description Pos.
SPEAKER GRALLE（LIFT）

1

TOP CABINET

2

FRONT CABINET

3

BACK CABINET

4

POWER KNOB

5

DISPLAY LENS

6

TUNING KONB

7

OPEN KNOB

8

CD FUNCTION KNOB

9

DBB KNOB

10

VOL KNIB

11

FUNCTION PUSH KNOB

12

PROG KNOB

13

SPEAKER GRALLE（RIGHT）

14

CD DOOR

15

INTERCONNECTION POSSIBILITIES

33
34

Pos. Connection/Function Connector type Electrical data (input or R.O.P)

37 DC Jack
38 Aux in jack

Subscr.

39
40
41
42
43
44
45
46

ACCESSORIES :

(1) AC CORD

REMARKS :

2011-04-01

1

2

Name: Supers: Tot.Sh.: 8

KT

Check:

3

CD/FM/MP3-LINK

Date: © PHILIPS Electronics Hong Kong Ltd., BU- PORTABLE AUDIO

SET SPECIFICATION

Sh. 190 - 1

47

A4

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Subscr.

General description: AZ1750- PORTABLE CD SOUNDMACHINE TUNER

LIFETIME : 5 YEARS (ACC. TO UAN-D1611)
PERFORMANCE CLASSES :

TUNER

SUPPLY,

AMPLIFIER

I x x x 3

II x 4

III 5

SAFETY REQUIREMENTS:

IEC 60065:2001(SEVENTH EDITION)+AI:2005------SAFETY

RADIATION, IMMUNITY REQUIREMENTS: (EMC)

EN55013:2001+A1:2003+A2:2006;EN55020:2007 EN61000-3-2:2006+A2:2009;EN61000-3-3:2008
EN61000-4-5:2006; EN61000-4-11:2004

CLIMATIC REQUIREMENTS: (acc. to UAN-D1590)
All climates: -10 C till +50 C (Functional); Set has to be pre-conditioned for 2 hour, except CD function 8
For all measurements: 25 C 9

POWER SUPPLY:
MAINS (AC) operation DC (int. or ext.) operation / Backup Buffer

Voltage

Battery type: 10

selection:
Selection:

See table below

Frequency: External DC: YES 12

POWER CONSUMPTION:

Standby: Less than ＜0.5W
Maximum: 7 W Maximum: 14

General:

Q and R according to production division rules : Q < 1% (Major), Q < 4% (Minor)
Measured according to: R < 3% (CE52)

DERIVED VERSIONS: APPROBATION

Versio

n

12

Voltage on

typeplate

230V ± 10%, 50Hz

REMARKS:

SPEAKER

BOXES

Tolerance Frequency Tuner

RECORDER CLOCK CD DCC TELEPHONE

Standby: 13

±10%

50Hz

FM,

REC.

PLAYER

6

7

11

15

16

1
2

TUNER PART

TECHNICAL description:

2011-04-01

1

2

Name: Supers: Tot.Sh.: 8

KT

Check:

3

CD/FM/MP3-LINK

Date: © PHILIPS Electronics Hong Kong Ltd., BU- PORTABLE AUDIO

SET SPECIFICATION

Sh. 190 - 2

A4

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Subscr.

(circuitry) FM (active components) FM

RF
IF

Detector
Decoder

SA2111 SA2111

SA2111 SA2111

SA2111

QD

GENERAL part:

WAVE RANGE TOLERANCES TUNING

FM 87.5MHz - 0.3 MHz

108MHz + 0.5 MHz

1MHz 6

1MHz 7

9

10

AERIAL:

FM telescope - 540 mm 12

FM wire : N/A Execution - Rotational 180 13

INDICATORS:

Pointer stroke: Execution pointer: 14
Knob indication over: Field Strength: 15

ELECTRICAL DATA:

AM: nom. limit FM:

-3dB limiting point
Amplification reserve
AFC holding range
Distortion (RF 1mV, f 67.5kHz)
Stereo -46dB quieting

Cross-talk (RF 1mV, f 40kHz,

nom.

20 26 dBf

0 -4 dB

-

1 7 %

48 52

25 20 dB

limit

1kHz)

wave range Sensitivity for

50mW

18 24 55 122dB
22 20 50 111dB

FM

nom.
lim.

noise limited sensitivity

IF

(26dB)

Image

rejectio

n

IF

rejectio

n

large

signal

f
f

29
30

31

unit

V/m

V

dBf

dBf dB dB dB

mV/m

dBV/m

REMARKS:

1
2

3
4

5

8

16
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24

25
26
27

28

2011-04-01

1

2

Name: Supers: Tot.Sh.: 8

KT

Check:

3

CD/FM/MP3-LINK

Date: © PHILIPS Electronics Hong Kong Ltd., BU- PORTABLE AUDIO

SET SPECIFICATION

Sh. 190 - 3

A4

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Subscr.

SUPPLY, AF-AMPLIFIER & LOUDSPEAKER (Boxes) PART:

TECHNICAL description:

Power supply Tone Control AF-Amplifier Loudspeaker
Active

UTC8227 1
components
Passive

2 X 8, 2W

3
components
4
GENERAL part:
Aux in jack type Ø 3.5mm 5
Loudspeaker filter, high pass None 6
Loudspeaker filter, low pass None 7
Power stage protection Temperature – YES; Short circuit – YES 8
Public address No 9

INDICATORS:

Output power or VU-meter No 11
Frequency response No 12
Low power (battery) No

13

14

ELECTRICAL DATA:

TONE/EQUALIZER/DBB
DSC Balance control No 15
Mechanical noise (ISO 1996) 16
Noise overall (ISO) 17

Channel difference at -46dB Type: < 3 dB 18

Hum (vol.max.-20dB to vol.min.) Limit: 2mV 19
Residual noise(volume min) Limit: 2mV 20
DBB on (Vol.max.-20dB): 100Hz, +6dB

(2dB) w.r.t. 1kHz at DBB on

DBB off (Vol.max.-20dB): 100Hz, -2dB

(2dB) w.r.t. 1kHz at DBB on

DBB has no dynamic, fixed to

6dB

22

21

Input sens.:Nom. 500 mV 23

for 50mW Limit: 600 mV 24

Line outp.: Nom. mV 25

voltage Limit: mV 26

OUTPUT POWER:
Mains operation: D=10%

2 X 1W 8

Limit: -1dB 27
28
Music power (MPO) / (PMPO): (acc. to DIN45324) 29
Short term maximum output power: - (acc. to IEC 60268-15) 30
Long term maximum output power: - (acc. to IEC 60268-15) 31
Headphone output voltage/power: n.a. 32
Bandwidth FTC – 1dB at: n.a. (acc. to FTC/16/1/D/432) 33
Bandwidth DIN – 3dB at: - (acc. to IEC 60268-15) 34
Frequency response at Vol. max – 20dB:

typ. 60Hz to 20kHz (

3dB)

35
LOUDSPEAKER (output):

Low pass crossover frequency: - kHz tolerance: Hz 36
High pass crossover frequency: - kHz tolerance: Hz 37
Short term maximum output power: - W (acc. to IEC 60268-15) 38
Long term maximum output power: - W (acc. to IEC 60268-15) 39
Frequency response at: - Hz kHz 41

REMARKS:

42
27 : Measured in Tuner mode;
28: CD or Tape mode.

2011-04-01

1

2

Name: Supers: Tot.Sh.: 8

KT

Check:

3

CD/FM/MP3-LINK

Date: © PHILIPS Electronics Hong Kong Ltd., BU- PORTABLE AUDIO

SET SPECIFICATION

Sh. 190 - 4

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Subscr.

TAPE function

General description:

3
5

6
7

Mechanical specification:

10
11
12
13
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19

Indicators:

Recording level No 21
Play back level No 22
Tape counter No 23

Electrical data:

Bias system FM/AM 24
RIF switch No 25
Erase system FM/AM 26
Erasing damping 27
Channel separation (IEC1) 28
Track separation (IEC1) 29
Frequency response (PB) 30
SNR 250nWb/m 31
Signal/hiss 250nWb/m 32
Signal/hum 250nWb/m 33
Channel difference (PB) 34
Distortion 250nWb/m 35
ALC attack time 36
ALC release time 37
Crosstalk Between forward to reverse track 38
REMARKS: 31: * not according to PQR clause 18.5 class I
31: ** Chromium performance not fulfilled

Amplification Reserve for Tape = 1dB 2dB

For details, please see specification SH-190 of ECO-MTF-PA-SD (3140 117 14890).

: (ECO-MTF-PA-SD-MS (FE) Module)

1

8

20

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39

5

CD-PART

: ( CD MECHAISM-DA11B3VF)(SANYO)

2011-04-01

1

2

Name: Supers: Tot.Sh.: 8

KT

Check:

3

CD/FM/MP3-LINK

Date: © PHILIPS Electronics Hong Kong Ltd., BU- PORTABLE AUDIO

SET SPECIFICATION

Sh. 190 - 5

A4