Kenwood DPCX 612 Service Manual

Page 1

DPC7X311(K)INT1P 7/28/00 4:27 PM \°~/1 /\

BREE-323A1YE1R/X517/X612 KENWOOD

SERVICE MANUAL

© 2000-7/B51-5651-00 (K/K) 3322

assuage) .
@' Mn Elflmw rm EDAOZVIe-SR *
§ W Knob(PLAY)

mtgygnggs) (K27-2441-08)

T06) cabinet ass'y *

Stereo jack
(E11-0372-08)

Knob(FF)
Bottom cabinet * 4' MIR (K27'2444'03)
(A0?) © Stereo Jack
(E11-O354-08)
- -- , Knob(REW)
(K27-2443-08)
DC Jack

(Eos-osse-os) 4.

Knob(REPEAT)
(K27-2440-08)

0 Door * 3 Knob(STOP)
(A52-) -(K27-2442-08)
fig \ Knob(OPEN) *
(Wm (K27-)
Ring L *
I ' (A21-)
. B t
*Refer to parts St on page 14 . ffiafigfifgg)
Format
System Compact disc digital audio system
Laser .. ................. Semiconductor laser
Audio

Frequency response" 20 Hz to 20 kHz, 13 dB
PHONES outpuyt level (169W 1 kHz) .......... 9 mW + 9 mW
Line output/impedance... ............................................................................................................................. Bass Boost ON : 0.3 Vrms/1 kQ

Bass Boost OFF: 0.6 Vrms/1 kQ

Power supply
External DC supply ...............................
Rechargeable batteries (NB-130) x 2 or 4
Commercially-available alkaline batteries (LR6/AA) x 2 or 4

Battery life (continuous repeat playback)

(Figures inside parentheses show the performance when the D.A.S.C. is ON.)
Commercially-available alkaline batteries (LR6/AA) x 2
Commercially-available alkaline batteries (LR6/AA) x 4
Rechargeable batteries (NB- 130) x 2
Alkaline batteries (LR6/AA) x 2 and re

Dimensions (W x H x D).. .

.5Vt06VDC

(5- 15/16 " X1- 1/8 " X5- 7/16 ")
Weight (net) ...... 2..40 g (8.5 oz)

1. KENWOOD lollows a policy of continuous advancements in development. For this reason specifications may be changed without notice.
@ 2. The lull perlormance may not be exhibited in an extremely cold location (underawater-freezing temperature).

In compliance with Federal Regulations, following are repro- KENWQOD'COYP- certifies this equipment COHfOfmS t0 DHHS 11%
ductions of labels on, or inside the product relating to laser Regulatlons NO 21 CF 1040- 10, Chapter 1, SubchapterJ. v.~
roductsafet t
p y DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.

l l J?

Page 4

r\
\J

DPC7X311(K)INT1P 7/28/00 4:27 PM \°-/ 4

/\
\/

DPC-X311/X517/X612

CIRCUIT DESCRIPTION

1. Microprocessor : MN101C439(ICS)
1-1 Pin description

Pin No. Pin Name IIO Description H Active L
1-4 COM 0-3 O LCD common output.
5 VLC3 - GND
6,7 VL02,1 - VDD
8 VDD - VDD
9 0802 - Unused.
10 SMCK | External system clock(4.2336MHz).
1 1 VSS - GND
12 X1 - GND
13 X0 - Unused.
14,15 MMODO - GND
16-18 ANO-2 - Unused.
19 KEYO | Remote control signal input.
20 KEY1 | Key signal input.
21 BATT. | Battery level detection port. LOW BATT
22 NC - Unused.
23 RECHARGE DET I Rechargeable detection port.
24 VREF+ - Power supply(+2.8v).
25 REM DATA 0 Remote control data output.
26 POWER 0 Power off control for CD servo driver. POWER OFF
27 REM STATUS - Unused.
28 P03 - Unused.
29 SUBQ | Sub code Q signal input port.
30 SQCK 0 Sub code clock output port.
31 P06 - Unused.
32 NRESET | Reset signal input for microprocessor.
33 XRESET 0 Reset output port to DSP |C(IC4). RESET
34 STAT | Status signal input port.
35 MLD 0 Command load signal output port of microprocessor.
36 MDATA 0 Command data signal output pon of microprocessor.
37 MCLK 0 Command clock signal output port of microprocessor.
38 BLKCK | Sub code clock signal input.
39 IRQ1 - Unused.
40 DOOR | Door switch detection input. OPEN
41 TEST - Unused.
Power voltage change-over
42 V CONT" O H = DC/DC out 3.0V L = DC/DC out 2.7V
43 BBS O Bass boost control output. BBS ON
44-46 P42-P44 - Unused.
47 LMT | Limit switch detection input port.
48,49 P46,P47 - Unused.
50 MUTE O Muting control port of audio signal. ON = H
51 LIGHT OUT - Unused.
52 RECHARGE I Detection port for rechargeable battery. BAT CHG ON
53-55 P53,P54.P60 - Unused.
56 AC ADAPTER | Detection port for AC adapter. BATTERY AC ADAP.
57 HOLD | Detection port for hold switch. HOLD ON
58 DASC | DASC switch detection port.
59 DASC1 - Unused.
60 DASC2 - Unused.
61 P66 - Unused.
62 DIG OUT - Unused.
63-68 SEG12-SEG17 - Unused.
63-80 SEGO-SEG11 O Segment control output.