Kenwood DP 28 Service Manual

Page 1

COMPACT D lSC PLAYER

DP- 2 8
SERVICE MANUAL
(M_28) («3199341 PRINTED IN JAPAN

851-4832-00< O) 2494

KENWOOD

Knob (Model Cabinet top CD tray cover Front panel Knob (Play/Eject)
(K29-5923-OB) (A01-3118-08) (A29-0368-08) (A60-0579-08) (KN-5924.08)

Knob (Skip) Knob (Display) Panel window Knob (Repeat) Foot ring Knob llOkey)
lK29-5926-OB) (Km-592108) (810v2021-08) (K295925308) (SH1101580798) lK29-5925-08)

Connector assy (15pm)
(E30«2673-05)

Rear foot
(8H1 101230060)

In compliance with Federal Regulations) following are repro- RTV serViS Horvat
ductions of labels on, or inside the product relating to laser Ke§inci, 31402 Semeljci
product safety. OBLSSG- 139

03 l >856»637
098488-319
rtV-servis-horvat@os.tel.hr

DANGER : Laser radiation when open and interlock defeated. Croatia
AVO|D DIRECT EXPOSURE TO BEAM.

KENWOOD-CorpV certifies this equipment conforms to DHHS
Regulations No 21 CFR 1040. 10, Chapter 1, Subchapter J.

Page 2

DP-28

CONTENTS/ACCESSORIES

CONTENTS

ACCESSORIES ....2 MECHANISM OPERATION DESCRIPTION
CONTROL ........... 3 ADJUSTMENT ..........................................
REMOTE CONTROL ....4 PC BOARD (COMPONENT SIDE VIEW) ..
DISASSEMBLY FOR REPAIR .. ...5 SCHEMATIC DIAGRAM ....................

BLOCK DIAGRAM .................... ...7 EXPLODED VIEW (MECHANISM) .

CIRCUIT DESCRIPTION EXPLODED VIEW (UNIT)

1. Test Mode ........................................ ...8 PARTS LIST ...........
2. Microprocessor : IX2248AF (IC4) SPECIFICATIONS .-

. ACCESSORIES
i N
i (FM indoor antenna ...........1 - AM (MW, LW) loop antenna ...1 - Loop antenna stand ..........1 - Antenna adaptor (750mm) ,..'l
( (Tao-017505) (HO-0195435) (MS-363605) (T90-O185-05)
i
i t
.
- Batteries (RS/AA) ................ 2 - Renters control unit ........... 1 ' AC MUG MW (M W03 MY) 1
I-) (A700956-05) : Pic-28 (Em-011505)
U0 5 II 4",
a), my. is I
6, 0
Battery cover (A090146«08) (Except for some areas)
For the unit with a European AC
K plug in areas other than Europe. 1
All accessories are packed with FIX-28.
System name Cassette receiver CD player Speaker DP-28 instruction manual
(860453908) E. F. G. D, l, S : E
M-23 8X48 DPQS LS-28 (EGO-154008) English : X, T
(EGO-154108) Eng. Spa. Chi. : M, i
Graphic equalizer
Option GE-zs

Note related to transportation and movement

Before transporting or moving the CD PLAYER, carry out the (o|~

» - l 2 3 I =
low-n9 operations. a 7 a e in
. -. _. 1 I I" 1" 1 2 i: 1415
1. Turn the power 0N but do not load a disc. I I l_l 1:, I :l l_ .3 17 «a m 20
2. Wait a law seconds and verify that the dispIay shown ap-
pears.

3. Turn the power OFF (RX-28).

Page 16

DP-28

ADJUSTMENT

RF level, TE waveform

- RF signal and E.Spot signal in test mode (PLAYlv
. If the diffraclion grating has been adlusted properly, the
cm influence of triggering is observed on the ESQOI waveform

RF signal of approx. l8us after RF signal, in the form of a projection

«(NW

._ 0W)

CH2
TE siganl

- RF Signal and T.Error signal; in test mode lFocusmg ONli
CH1 (Disc We 4)
RF signal . Ad|ust T Error so that the waveform is symmetrical above
and below 0V (VR 1)

CH2
TE signal

16