Philips as 445 service manual

Page 1

AS440/2oo, r226, IZSG, l37G

Midi System
AS445/2oe, /21 G, /25C1, ISOG

0 Service
Service
Servrce

ervice Manua

COMPACT

DIGITAL AUDIO

TABLE OF CONTENTS

Specification .........
Measurement setu
Safety ...................
Connections & Controls
Service hints ......
Dismantling Hint
Servrce Testprogram
Wiring Diagram oi Set t.
Block Diagram of Set19 - 21
Micro Mix Board
Circuit Diagram
Component Layout
Front Board
Component Layout copperside view

Circuit Diagram AF-Part 5 v
Component Layout componentside vie 7 » 28
Circuit Diagram ControI~Pan t 9 - 30

Recorder Board
Adjustment Tablet
Component Layout
Circuit Diagram ......

Power Board (all version except 122)
Component Layout
Circuit Diagram .....

Power Board (tor/22 only)
Component Layout
Circuit Diagram .

Trato Board
Circuit Diagram ......
Component Layout

Published by Consumer Electronics Printed in The Netherlands Copyright reserved Subject to modification

PHILIPS

m

ECO 4 Tuner
Circuit Diagram
Component Layout
Adjustment Table .r
Tuner 92
Circuit Diagram ......
component Layout
Adjustment Table H
CD

Dismantling of CD Unitv - 59
Block Diagram ....... , 60
Component Layout - 62
Circuit Diagram ...... - 65

Faultfinding Tree - 67
Abbreviations ..... .68
Exploded View CD. - 70

Exploded Views oi Set
Partslist ........................

Annex
Service Manual Tape Transport RDN-11
Service Manual Record Player DL-40

CLASS 1

LASER PRODUCT

4822 725 24929

PHILIPS

Page 2

12

SERVICE TEST PROGRAM

The servlee lest pmgramm can be lelt:
- at each step: by switching power oil (disconnect mains)
- from servlce maln menu:
by pressing the Standby button twice the set is switched
to normal working mode except; in TUNER mode still the service preset
frequencies are available
in CD mode the error codes will be displayed

, V A-
N
display shows Display snows Display shows
vsrsron ol tunte; tor 25 ~ :3 -- picture i Display shows P
-servtce prese requ are Key numbers m EEPROM
copied to trre RAM table 2 are Show :5 tested lay MP
(599 We on (he drsplay
Tuner is normal working
> $332522: ~ 7
AUTOPROGH 2) button pressed /
MONO/STEREO N
bullon pressed? [- V a
y Display shows
Power om PM 2 v
-L
Displ r
N Hsn [or 2 m
bulton pressed?

Scrwce mode tan

2) Preset lrequencies al table 1 can be used
as in normal tuner mode.
ll tieldstregth ls hlgh enough PROGRAM' llag wIII Ilghl
Preset frequenctas stored by the customer are still
stored m the EEPHOM and can be recalled by a reset

at the 1:? {switching power all by disconnecting mains cord)

Prcture a

1-Y

Dlspldy shows
picture 3

HSD
button pressed)

Y
,
r
w
Display shows
nsoono srznso D n sw UV 7 D - - Aura may WM
FEW M50 PAUSE W .L: H le REPEAT THAC
mmavm... '3 Fund '- LLL '- ustrmmEE
Ptclufs l
llll llllllll "5"
button pressed?
r l r l r u l l l l r
F>cture 2
Frame 3
mm STEREO SW LW All'm PROGR
FEW N50 PNISE W . kit HEPEAT IRA
WE DOLBV R F" All - UNI SNUFFLE E