Philips 22 rc 026

Page 1

PCS 82 437

Car CD changer 22RC026I00

Contents

Specifications

Service

Interface cable connections

Functional explanation

Notes regarding CD player repairs
Notes regarding handling of the pick-up
Pick-up detail

Disassembly

IC circuit descriptions and IC block diagrams

Block diagram

PCB layout / connections
Circuit diagram 1/3
Circuit diagram 2/8
Circuit diagram 3/3
Trouble shooting

Page

\IVJiNNN

9

10

14

19

20 and 23
21

22

24

25

Exploded view CD changer mechanism / Lubrication overview 28

Mechanical pans

Exploded view cabinet parts
Cabinet parts and accessories
Electricalvparts

29
30
31
31

COMPACT
éflgm CLASS 1
LASER PRODUCT

DIGITAL AUDIO

Published by Philips Car Systems 9672 Printed in The Netherlands DCopyright reserved Subject to modification (65 4822 725 25470

{is

@ PHILIPS

5

Page 2

SPECIFICATIONS

Power supply

13.2VDC (nom.)

DISIOI'IIOI'I

s 0.01% (at 1kHz)

16.0VDC (max.) Data - Track mute 2 93dB (A-weighted)
Frequency response 20-20,000 Hz (:I: 1dB) Wow and flutter unmeasurable
DAC resolution 1 bit per channel Output voltage 700mV
Bus interface DZB Operating positions HorizontalNertical/45"
Crosstalk L<>R S -75dB Weight 2 kg
SIN ratio 96dB (A-weighted) Dimensions (HxWxD) 66 x 259 x 175 mm
SERVICE
IMPORTANT I! !I IMPORTANT

- When disassembling, ALWAYS protect the pick-up unit against ESD damage by closing the solder connection of
the pick-up unit either on the CD panel or the flexible foil pcbl
(See also the repair notes and disassembly procedures described in this manual.)

- New pick-up units are supplied with CLOSED solder connections on the flexible foil pcb.
Do NOT forget to remove the solder connection AFTER replacing the unit!

SERVICE HINTS

- To prevent magazine check (duration approx. 30-40 sec.), insert the magazine and press the eject' button
SIMULTANEOUSLY. In that case disc no.1 is loaded and the set comes into 'Standby' mode.

- Use (home-made) extension cables of approx. 30 cm to get access to the bottom side of the main pcb for
measuring purposes. Two extension cables (at 2-pole and a 5-pole one) are required. To make these cables, the
following parts can be ordered and used for making the extension cables:

08801 - cable assy 2-pole - 4822 321 62668

- CS802 - cable assy 5-pole - 4822 320 11738

- The set can also operate without cover, but take care of the following measures:
- ABSOLUTELY NEVER PERMIT LASER BEAMS TO ENTER THE EYES
- DO NOT EXPOSE THE SET TO BRIGHT (SUN)LIGHT

- When the CD changer has a defect while the magazine is still in, the magazine can be removed by moving the
emergency eject lever to the right by a small screwdriver, as shown in figure 1 below. First the protection sheet has
to be removed. DO NOT FORGET to put the sheet back, to prevent dust intrusion! When a disc is chucked, turn the
gear to the right until the slide lever reaches to the edge of the left side (see figure 2).

-\__/-- Slide lever Gear
<- C
.
BOTTOM VIEW ° '
(D
0 1:1 0

Figure 1

INTERFACE CABLE CONNECTIONS Figure 2

22RCO26 - 2 -

PCS 82 438