Philips az 8304 service manual

Page 1

CD Stereo Radio Recorder A28304
oo/os

-
Service

.Service Manual

For repalr 1nformat1on of the cassette mechanlsm [3

see Servvce Manual of Recorders tape deck ROR»6 mnunm
CONIFNIS: Dflgc
Picture 9
Component Symbol, Controls and Connectvnni ?a

Self lest Procedure
Soecrflcat1on 3
(SD Harnlng and Safety Text

Ohmw

Set wrung 5
Power c1rcult dragvam 7-8
component layout 9-11
Tuner component layout 12-13
adjustment table 14
circuit dlagram 1547
\ Feature component layout le20
curcuit diagram 21-22
. Tape Core component layout 23
adjustment table 24
c1rcuit diagram 25726
Control clrcuIt diagram 27»28
component layout 29-31
RCD component layout 32-33
adjustment table 34
c1rcu1t dlagram I 35737
clrcmt diagram 11 38-40
Exploded Vuew 41»42
Hechanlcal Partsllst 43
Electr1cal Partslist A4<45

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Avatlaassa la suolalululus oh-leuaessa ole! almnnn nakymanomalle
Iassrsalenlylle Ala kalso salesmen

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Osynlog Iaserstrblnmg mar oenna del 31 oppnad och spanen av urkopplad
Belrakla a; smile"

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3 . mm. em man on: m in! 4822 725 22985
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/

Service
Information

1993-04- 19

AZBSDO. A28301 and A28304 families

A93 -188

Product Service Group CE Audio

To prevent iene knocking against duet cover during power
on" do the following on the CD board.
change 2829 from 220uF to 4.7uF 4822 124 23175

To Improve playability (test disc 7Ntreck 8) do the following
on the CD board.
change 2807 from 15pF to 33oF 4822 122 33069

3806 from tax!) to 4.7m 4822116 52283

To adopt to email leaded component do the following on the

00 board.

change 3841/3842 from M) to 6800 4822 116 52228
3843/3844 from 470K) to 3300 4822 116 52219
2843/2844 from 3.3nF to 4.7nF 4822 126 11714
2847/2848 from 33oF to 47nF 4822 126 12785

Further to earlier Service information A92-179 (4822 725
24421) on the problem oi CD not able to play unleee extra
push down preeeure ie applied to the CD lid. the additional
self adhesive felt ring to be added onto the brass disc is 4822
529 10258 instead 014822 532 52514.

Due to Iogietic problem the RCD-1D mechanism will be
available for limited stocks alter which all detective RCD-lD
mechanisms (see figure 1) must be replaced with RCD-1.2D
mechanism

CD mechanism: Service code:
ROD-1 D 4822 691 20596
Film-1.20 4822 691 20768

For this reason the following are the minimum necessary
changes required to adapt the electronicslor usewith ROD-1 .2D
mechanism:

Item From To Remarks
2814 MP 4.7uF Focus search
2829 220uF 4.7uF Vrel butler
3804 15k 8.2K HF amplifier
3805 15k 82k

3871 6.8k 18k Sledge section

3872 100k 47k

After adaptations. electrical adjustments must be done accord-
ing to the enclosed new adjustment table.

T

FIGURE 1. OLD FICD-ID MECHANISM

Service
Sen/lee
Servrce

4822 725 24809

PCS 63 415