KENWOOD KDC-MP333, KDC-MP333RC, KDC-MP433 Service Manual

CD RECEIVER

KDC-MP202
KDC-MP333/RC
KDC-MP433

SERVICE MANUAL

© 2005-12 PRINTED IN JAPAN
B53-0351-00 (N) 755

Panel assy
KDC-MP202 (A64-3802-02)

VOL

AUD

SET UP

AUTO

AME

Q

MENU

SCAN RDM REP

Panel assy
KDC-MP433 (A64-3799-02)

VOL

AUD

SET UP

AUTO

Q

AME MENU

SCAN RDM REP

Mounting hardware assy
(J21-9716-03)

F.SEL

F.SEL

KDC-MP202

KDC-MP433

SCRL

FM

AM

FF

SCRL

FM

AM

FF

* Plastic cabinet assy
(A02-2736-03)

Panel assy
KDC-MP333/RC (A64-3798-02)

KDC-MP333

VOL

AUD

SET UP

AUTO

Q

AME MENU

SCAN RDM REP

F.SEL

FF

SPARE TDF PANEL

MAIN UNIT NAME TDF PARTS No. TDF NAME
KDC-MP202 Y33-2420-60 TDF-MP62DT
KDC-MP333 Y33-2420-62 TDF-MP333
KDC-MP333RC Y33-2420-62 TDF-MP333
KDC-MP433 Y33-2420-63 TDF-MP433

* Carrying case
(W01-1661-05)

SCRL

FM

AM

DC cord
(E30-6415-15)

* Escutcheon
(B07-xxxx-xx)

* Depends on the model. Refer to the parts list.

Lever
(D10-4589-04) x2

Screw set
(N99-1757-05)

* Remote controller assy (RC-517)
(A70-2069-15)

This product uses Lead Free solder.

Screw (4x16)
(N84-4016-48)

Battery
(Not supplied)

KDC-MP202/MP333
KDC-MP333RC/MP433

ELECTRIC UNIT (X34- )

J2

ANT

CN3

WIRED
REMOTE

AM+B

1

Q501

AM AGC

IC10

IC7

RDS
DECODER

SW5

A8V

1

IC11

2

SW5

TUNER + MPX + E-VOL.

E2PROM

32211

IC1

BU5

IC8

RESET IC

2

CN

(X16- )

GND

PANEL DET

S1

RESET

S11

ROT ARY
ENCODER

SW5

IC3

REMOTE

SW5

Q21

SW5V

PAN5

1

Q502

FM AGC

3

SYSTEM u-COM

Q401

PAN5V

BU5

5

IC1

VFD DRIVER

BLOCK DIAGRAM

SERVO+B

A8V

DME1

1

Q301

ILLUMI+B

9

CD MECHA

1

MUTE

R11-15

1/2W
Rx5

2

BU5DSI

FL+B
J5
J1

LED

KEY ILLUMI

SWITCH

KEY MATRIX

D5V
BU

IC14

3

1

Q701-703

BU5

DC-CN etc

FL+B

PHONE
ACC-DET/BU-DET
P.ON FL
PS1-1/PS1-2/PS1-3
PS2-1/PS2-2

119

R80-82

1/2W Rx3

ED1

DISPLAY

BU

POWER
IC

PRE
MUTE

BU5

Q104,105

MUTE

1

BU5

Q901-903

DC
OFFSET
DET

From
Q103

BU DET
RST

From
X16-

J1

J6

FM+B

SP-OUT

FRONT L/R
REAR L/R

PRE-OUT

FRONT
REAR

To IC1

PHONE

To IC1

ACC DET

To IC1

BU DET

From IC1

PS1-1/PS1-2/PS1-3
PS2-1/PS2-2

FL+B

AM+B

SW5

BU5

Q8,9

FM
+B

A8V

SERVO+B

R103

PHONE

BU5

Q101

ACC-DET

Q103

BU-DET

BU5

Q51

SURGE­DET

IC3

POWER
SUPPLY
IC

J1

DC-CN

PHONE

ACC
B.U.
P-ANT
P-CON

D5

Q2,3

CD
SERVO

Q1

SW14V

SW5

Q6,7

ILLUMI+BILLUMI+B

Q5

SW14V

From IC1

PON FL

DPU1

ACB

EF

FO COIL
TR COIL

DM1

SPINDLE
MOTOR

DM2

LOADING &
SLED
MOTOR

CD PLAYER UNIT (X32-586x-xx)

IC7

1.6V REG

RF AMP

+

SERVO

Q4

APC

IC3

MOTOR
DRIVER

S.GND

PROCESSOR

+

MP3 DECODER

+

WMA DECODER

+

AAC DECODER

+

1Mbit SRAM

VREF

X2

CLOCK

16.934MHz

IC10

DRAM

4Mbit

D.GND

D.GND

DMUTE

IC4

MECHA
u-COM

X1

CLOCK

16.00MHz

IC1

A3.3V REG

P-ON2

P-ON1

D.GND

IC6

IC2

IC5

BU3.3V REG

D3.3V REG

D.GND

D.GND

LPF

D.GND

Q7,8

SW

D.GND

0-01 ONLY

S.GND

MOTHER
BOARD
(X34- )

A8V

L-ch
R-ch

A.GND
D.OUT

MRST
MSTOP
CLK
DATA
MUTE L
MUTE R

BU5V
D.GND

D5.0V

S3

LOE/LIM-SW

S4

8EJE-SW

S2

12EJE-SW

S1

LOS-SW
S.GND

S7.5V
LO/EJ
MOTOR

2

KDC-MP202/MP333
KDC-MP333RC/MP433

COMPONENTS DESCRIPTION

● ELECTRIC UNIT (X34-409x-xx)

Ref. No. Application / Function Operation / Condition

IC1 System µ-COM System control
IC3 Power Supply IC DC5V x 1, 7.9V x 1, 8.1V x 2, 10.2V x 1, P-CON, P-ANT output
IC8 Reset IC “L”: detection voltage below 3.6V
IC10 E-VOL & Tuner E-VOL, Tuner, Stereo decoder
IC11 E2PROM Save & Load for tuner adjust data
IC14 Power IC Signal amplifier
Q1 14V SW ON when the base goes “Hi”
Q2 SERVO+B AVR Output voltage 7.5V
Q3 Control SW for SERVO+B ON when the base goes “Hi”
Q4 Control SW for IC3 ON when the base goes “Hi”: Output voltage 10.3V.
Q5 FL+B SW ON when the base goes “Hi”
Q6 FL+B AVR Output voltage 11V
Q7 Control SW for FL+B ON when the base goes “Hi”
Q8 FM+B AVR Output voltage 8.0V
Q9 Control SW for FM+B ON when the base goes “Hi”
Q51 SERGE Det. ON when the base goes “Hi”
Q101 ACC Det. ON when the base goes “Hi” during ACC is applied
Q103 BU Det. ON when the base goes “Hi” during BU is applied
Q104,105 MUTE Control ON when the base goes “Hi”
Q301 DSI ILLUMI SW ON when the base goes “Hi”
Q401 Panel 5V SW ON when the base goes “Lo”
Q501 AM RF Amplifier Adjusts for gain
Q502 FM RF Amplifier RF amplifier
Q701 Mute driver for PRE OUT ON when the base goes “Lo”
Q702 Mute SW for Lch PRE OUT Pre-output is muted when the base goes “Hi”
Q703 Mute SW for Rch PRE OUT Pre-output is muted when the base goes “Hi”
Q901 DC OFFSET Det ON when the base goes “Q902 and Q903’s output separate”
Q902,903 DC OFFSET Det SW ON when the base goes “IC14’s SP-OUT (DC) separate”

● SWITCH UNIT (X16-350x-xx)

Ref. No. Application / Function Operation / Condition

IC1 VFD DRIVER
IC3 REMOTE SENSOR
Q21 PAN SW5V “ON” when the base goes “H”

3

KDC-MP202/MP333
KDC-MP333RC/MP433

COMPONENTS DESCRIPTION

● CD PLAYER UNIT (X32-5860-00)

Ref. No. Application / Function Operation / Condition

IC1 A3.3V regulator Power supply for audio 3.3V
IC2 Ope amp for low-pass filter
IC3 4ch BTL driver Driving spindle motor and loading/ejection operation
IC4 Mechanism µ-com
IC5 BU 3.3V regulator Power supply for backup 3.3V
IC6 D3.3V regulator Digital 3.3V power supply
IC7 Audio DAC built-in servo DSP MP3, WMA, and AAC compatible
IC11 Buffer IC Level shift
Q1 A3.3V discharge circuit
Q4 Current amp Adjusts current to be sent to laser
Q5,6 SW 5V
Q7,8 SW 8V
D1 For current amp

MICROCOMPUTER’S TERMINAL DESCRIPTION

● SYSTEM µ-com: IC1 (X34-: ELECTRIC UNIT)

Pin No. Pin Name I/O Application

1 PS2 2 O Power IC control 2-2 q Refer to the truth value table
2 PS2 1 O Power IC control 2-1 q Refer to the truth value table
3 PS1 1 O Power IC control 1-1 q Refer to the truth value table
4 PS1 2 O Power IC control 1-2 q Refer to the truth value table
5 PS1 3 O Power IC control 1-3 q Refer to the truth value table
6 REMO I Remote control signal input Detect pulse width
7NC-Not used Fix to output L
8 BYTE I Memory extension bus width setting Connect to VSS
9 CNVSS - Connect to VSS. H: Can be changed (Only for FLASH)
10 XCIN - 32.768kHz
11 XCOUT - 32.768kHz
12 RESET - L: RESET
13 XOUT - 10.0MHz
14 VSS ­15 XIN - 10.0MHz
16 VCC1 ­17 NMI I Connect to VCC (pull up)

Truth Value

Table

Processing / Operation / Description

4

KDC-MP202/MP333
KDC-MP333RC/MP433

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

18 CN DET I Panel communication detection H: Without PANEL, L: With PANEL
19 NC - Not used Fix to output L
20 KEY REQ I
21 PON FL O Key illumi power supply control ON: H, OFF: L
22 DSI I/O DSI control OFF: Hi-z PANEL detached, Pulse drive ON: H

23 PON PANEL I/O Panel 5V control

24~27 NC - Not used Fix to output L
28 PWIC BEEP O Beep output
29 CD SCL I/O CD mechanism I2C clock output
30 CD SDA I/O CD mechanism I2C data input/output
31
32
33 VFD CL O VFD clock output 52kHz

34 VFD INH O VFD data blanking output

35 AUD SDA I/O IC10 I2C data input/output
36 AUD SCL I/O IC10 I2C clock input/output
37 CD MUTE I CD MUTE request L: MUTE request
38 CD MSTOP O CD mechanism µ-com stop
39
40 CD LOEJ I/O CD motor control w Refer to the truth value table
41 EPM I FLASH EPM input
42 CD MOTOR O CD motor control w Refer to the truth value table
43
44 CD MRST O CD mechanism µ-com RST H: Normal, L: Reset
45
46 VFD CE O VFD control request
47 CD LOS SW I CD loading detection
48,49 NC - Not used Fix to output L
50
51 NC - Not used Fix to output L
52
53~56 NC - Not used Fix to output L

57 RDS AFS L O TUN RDS MUTE output

58 TUN ADJ I

59 TUN SD I TUN search stop input H: Station found, L: Station not found

VFD SYS DATA
VFD PAN DATA

CD LOE LIM SW

CD DISC8 SW

CD DISC12 SW

ROTARY CW

ROTARY CCW

Communication request form VFD driver

O VFD data output Data output

I VFDINT/data input INT/data input

I CD detection (chucking SW) H: Loading completed, L: Disc not found

I CD disc detection (8cm)

I CD disc detection (12cm)

IVOL key input Detect pulse width

IVOL key input Detect pulse width

For IC10 adjustment + When ADJ=H, PS1-1,2,3=Hi-z, PS2-1,2=Hi-z,
E2PROM write request TUN DATA, CLK=Hi-z, MUTE=L, E2PROM writing-in

Truth Value

Table

Processing / Operation / Description

Connect to INT

ON: L, Momentary power down, when PANEL detached,
11 minutes after ACC OFF: Hi-z

H: Cancel reset, L: RESET, L: Momentary power down,
when PANEL detached, 11 minutes after ACC OFF

H: Mechanism µ-com in operation, L: Mechanism µ-com stopped

L: Can be changed (Only for FLASH). Connect to VSS (pull down)

H: Normal
L: FM/AM SEEK, AF search (L: When Tuner SRC Auto Zero)

5

KDC-MP202/MP333
KDC-MP333RC/MP433

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

60
61 PON FM I/O FM power supply control H: When FM is active, Hi-z: When FM is not active
62 VCC2 ­63 NC - Not used Fix to output L
64 VSS ­65 MUTE I/O MUTE L: MUTE OFF, Hi-z: MUTE ON

66 PWIC SVR O SVR discharge circuit (Not used)

67 PWIC STBY O Power IC stand-by control POWER ON: H, POWER OFF: L

68 PWIC MUTE O Power IC MUTE

69~74 NC - Not used Fix to output L
75 RDS CLK I
76 TUN TYPE1 I Destination setting 1 e Refer to the truth value table
77 TUN TYPE2 I Destination setting 2 e Refer to the truth value table
78 TYPE1 I Destination change r Refer to the truth value table
79 TYPE2 I Destination change r Refer to the truth value table
80 TYPE3 I Destination change r Refer to the truth value table
81 RDS NOISE I FM noise detection
82

83

84~86 NC - Not used Fix to output L
87

88 LINE MUTE I Line mute detection

89,90 NC - Not used Fix to output L
91 RDS DATA I RDS decoder DATA input
92 RDS QUAL I RDS decoder QUAL input
93 NC - Not used Fix to output L
94 ACC DET I ACC power supply detection L: ACC ON, H: ACC OFF

95 BU DET I Momentary power down detection

96 AVSS - Connect to VSS
97 REF CON O VREF control Connect to VREF
98 VREF - Connect to REF CON
99 AVCC - Connect to VCC
100 NC - Not used Fix to output L

TUN FANC OUT

TUN SMETER

RDS AFS L 2

PWIC DC DET

O TUNER block (in µ-com) check Only when test mode, E2P OK: H, E2P NG: L, Normal: L

RDS decoder CLK input (RDS model only)

IS meter input

TUN RDS MUTE output

O

(Not used in circuit, used in software)

I DC offset detection

Truth Value

Table

Processing / Operation / Description

When momentary power down by POWER OFF,
5 seconds : H, Thereafter: L

While STANDBY source,
Momentary power down: L , While TEL MUTE: L

H: Normal
L: FM/AM SEEK, AF search (L: When Tuner SRC Auto Zero)
* Same process with RDS AFS L

TEL MUTE: 1V or lower, NAVI MUTE: 2.5V or higher
NAVI MUTE: 1V or lower and 2.5V or higher (J-TYPE)

L: BU found, H: BU not found, momentary power down
Activated within 4ms after detection of momentary power down

6

MICROCOMPUTER’S TERMINAL DESCRIPTION

Truth Value T able

q : Power supply IC (IC3) control

SEL1 (Pin No. 11)

PS1-2 PS1-3 PS2-1 ILLUMI P-CON P-ANT

LLLOFF OFF OFF
LLHONOFF OFF
HLHONONOFF
HHHONONON

SEL2 (Pin No. 12)

PS1-1 PS2-2 AUDIO SW5 AM

LLOFF OFF OFF
HLONON OFF
HHONON ON

KDC-MP202/MP333
KDC-MP333RC/MP433

w : CD mechanism control operation

CD MOTOR CD LOEJ
Stop L L
Load H L
Eject H H

Brake H Hi-z

e : Destination setting

Model
KENWOOD brand model (initial value) L L
OEM model (with CRSC changed) L H
KENWOOD brand model (with CRSC changed) H L
KENWOOD brand model (to support test-driving in EU)

TYPE 1 TYPE 2

HH

r : Destination change

TYPE 3 TYPE 2 TYPE 1

(Pin 80) (Pin 79) (Pin 78)

000KKDC-MP202
001JE313S
010EKDC-3034A/3034AY/W4034A/W4034AY/W410A/W410AY
011EKDC-W434A
100KKDC-MP2032CR
101MKDC-MP333/MP333RC/MP433
110EKDC-3034G/3034GY/W4034G/W4034GY/W410G/W410GY
111J/E E212/E212S/KDC-W40GY/W434G/W434GY

Destination

Model

● MECHANISM µ-com : IC4 (X32- : CD PLAYER UNIT)

Pin No. Pin Name I/O Application

1NC-Not used Low-fixed
2 E2P SCL I/O Rom correction E2P I2C clock
3~5 NC - Not used Low-fixed
6 VDD - 5V electric potential
7 GND - GND electric potential
8,9 NC - Not used Low-fixed
10,11 PON1, PON2 O Power ON/OFF control H : ON, L : OFF
12 LOE/LIM SW I Down-limit SW detection L : Lim detection

Processing Operation

Description

Remarks

7

KDC-MP202/MP333
KDC-MP333RC/MP433

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

13 DAC MUTE O DAC MUTE control H : MUTE ON, L : MUTE OFF With DXM-6580W (X32-574), open

14 DAC RST O DAC RESET H : NORMAL, L : RESET With DXM-6580W (X32-574), open

15 EMPH O External DAC Emphasis control

16,17 NC - Not used Low-fixed

18 IC/Vpp - Write voltage (FLASH)

19 MUTE L O Lch audio MUTE control L : MUTE ON, H : MUTE OFF
20 MUTE R O Rch audio MUTE control L : MUTE ON, H : MUTE OFF

21 TYPE I DAC switching

22 TEST O 1 O TEST MODE O 1 (Not used)
23 TEST O 2 O TEST MODE O 2 (Not used)
24 TEST O 3 O TEST MODE O 3 (Not used)
25 TEST O 4 O TEST MODE O 4 (Not used)
26 NC - Not used Low-fixed
27 WAIT I Wait control signal detection
28~30 NC - Not used Low-fixed
31 RESET I Reset detection H : NORMAL, L : RESET
32 XT1 I Not used
33 XT2 - Not used
34 REGC ­35 X2 ­36 X1 I
37 Vss - GND electric potential
38 VDD - 5V electric potential
39 NC - NC Output stopped in standby 3.3V driven
40 WRL I Multiplex WRITE signal 3.3V driven
41,42 NC - Not used Low-fixed 3.3V driven
43 RD O Multiplex RD signal 3.3V driven
44 ASTB O Multiplex ASTB signal 3.3V driven
45 NC - Not used Low-fixed 3.3V driven
46 NC - Not used Low-fixed 3.3V driven
47~54 AD0~AD7 I/O Multiplex address/data 3.3V driven

Processing Operation

Description

Used with DXM-6680W (X32-586).

and L-fixed.
Used with DXM-6680W (X32-586).

and L-fixed.

H : Emphasis ON,
L : Emphasis OFF

L : Normal operation,
H : In writing.

H : DSP built-in DAC used, H : DXM-6580W (X32-574),
L : DSP built-in DAC Not used L : DXM-6680W (X32-586)

Used with DXM-6680W (X32-586).
With DXM-6580W (X32-574), open
and L-fixed.

Remarks

8

KDC-MP202/MP333
KDC-MP333RC/MP433

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

55 BVdd - BUS interface power supply
56 BVss - BUS interface GND
57~61 AB8~AB12 I/O Multiplex data/address 3.3V driven
62~65 NC - Not used Low-fixed 3.3V driven
66 CS O Chip select control H : OFF, L : ON 3.3V driven
67 DSP RESET O DSP reset control H : NORMAL, L : RESET 3.3V driven
68~70 NC - Not used Low-fixed 3.3V driven
71 Avdd ­72 Avss ­73 Avref I A/D port reference voltage input
74 NC - Not used. Low-fixed

75 RAMSEL I

76 RZM I 0bit MUTE detection H : ≥1.7V, L : <1.7V
77 LZM I 0bit MUTE detection H : ≥1.7V, L : <1.7V

78 AAC I AAC compatibility switching

79 ASEL I Audio output polarity switching

80 E2P WR I E2PROM write switching

81 TEST I 0 I TEST MODE I 0 (Not used)
82 TEST I 1 I TEST MODE I 1 (Not used)
83 TEST I 2 I TEST MODE I 2 (Not used)
84 TEST I 3 I TEST MODE I 3 (Not used)
85,86 NC - Not used Low-fixed
87 MSTOP I Standby restart interruption H : STOP release, L : STOP
88 INTSV I Interruption from servo IC H : Interruption
89~92 NC - Not used Low-fixed
93 D-MUTE O Driver MUTE H : OFF, L : ON
94 SYS SDA I/O System µ-com I2C data Flash write port (SI0)
95 NC - Not used Low-fixed Flash write port (SO0)
96 SYS SCL I/O System µ-com I2C clock Flash write port (SCK0)
97~99 NC - Not used Low-fixed
100 E2P SDA I/O ROM correction E2P I2C data

With DRAM/No DRAM switching
for different models

Processing Operation

Description

H : With DRAM, L : No DRAM

H : AAC non-compatible, AAC non-compatible mode has priority
L : AAC compatible for both hardware and software.
H : Reverse output,
L : Non-reverse output
H : E2PROM WRITE,
L : NORMAL

Remarks

9

KDC-MP202/MP333
KDC-MP333RC/MP433

TEST MODE

● How to enter the test mode

Press and hold the [1] and [3] keys and reset.

● How to clear the test mode

Reset, momentary power down, Acc OFF, P ower OFF, de­tach the panel.

● Test mode default condition

• Source is STANDBY.

• Display lights are all turned on.

• The volume is at -10dB (The display is 30).

• LOUD is OFF.

• CRSC is off regardless of the availability of switching func­tion.

• SYSTEM Q (dB equalizer) is NATURAL (=FLAT).

• BEEP should always functions when the key is pressed.

● Specification of test mode for tuner

• TUNER mode [4] key frequency shall be 98.3MHz.

● CD receiver test mode specification

• Display mode default setting shall be P-TIME.

• Jumps to the following tracks by pressing the [
No. 9 → No. 15 → No. 10 → No. 11 → No. 12 → No. 13 →
No. 22 → No. 14 → No. 9 (recursive)
Note that when playing an MP3 / WMA / AAC disc with 8
files or less, the disc is played from the 1st track in the
normal order.

• Pressing the [ ] key goes back by 1 track from the track
being played.

• While in CD source, press the [1] key to jump to No. 28.

• While in CD source, press the [2] key to jump to No. 14.

• While in CD source, press the [3] key to display the CD
mechanism model name and the version. Press the [3] key
again to go back to the normal screen. (Time code display)

MP3 CD mechanism

6680:0123

Model name

Normal CD mechanism

Version

NORM:CD

• When CD is the source, press the [6] key to jump to No. 15.
At this time, the volume value is set to 25.

10

]key.

● AUDIO adjust mode

• Press the [AUD] k e y and enter the audio adjustment mode.

• Press the remote controller [∗] key and [AUD] k e y to go into
the audio adjustment mode.

• Both AUDIO FUNCTION MODE and SETUP MODE ad­justment items are included.

•By pressing [AUD] key and then [FM] key, switch the item
to be adjusted in the following order.
The default item shall be Fader, and then the item is for­warded in the following order: Balance → Bass Level →
Middle Level → Treble Level (thereafter arbitrary).

• Continuous forwarding by remote controller is prohibited.

• Fader is adjusted by the VOL knob and [
3 steps: R15 ↔ 0 ↔ F15. (Default value: 0)

• Balance is adjusted by the VOL knob and [ ] / [ ] keys
in 3 steps: L15 ↔ 0 ↔ R15. (Default value: 0)

• Bass/Middle/Treble Level are adjusted b y the V OL knob and

] / [ ] keys in 3 steps: -8 ↔ 0 ↔ +8. (Def ault v alue: 0)

[

•Volume Offset is adjusted b y the VOL knob and [
keys in 2 steps: -8 ↔ 0. (Default value: 0)

• Loudness ON/OFF is adjusted by the VOL knob and [ ] /

] keys in 2 steps: OFF ↔ ON. (Default value: OFF)

[

] / [ ] keys in

] / [ ]

● MENU

• Press the [Q] key to enter the MENU.

• Press the remote controller [DNPP/SBF] key or the [DI­RECT] key to enter the MENU.

• Continuous forwarding by remote controller is prohibited.

● Backup current measurement

If reset while in Acc OFF (Back Up ON) condition, MUTE
terminal goes off 2 seconds later, rather than 15 seconds.
(During this time, the CD mechanism does not function.)

● Fluorescent tube (ED1) short-checking

• When the source is STANDBY, press the [A TT] k e y to switch
the process in the following order.

1. All lights off.

2. Every 125msec, light the odd and even number of the

grid with the largest numbers.

3. Light only odd number terminals.

4. Light only even number terminals.

5. All lights on.
* After the step 5 above, the process goes back to the

step 1 and then repeats the steps.

● Initializing AUDIO-related setting value

Press the [ ] key in the STANDBY source and reset the
AUDIO setting value to the test mode default value.

TEST MODE

KDC-MP202/MP333
KDC-MP333RC/MP433

● Other

• When started in Test Mode, duration of prohibiting LINE
MUTE shall be changed from 10 seconds to 1 second.

• When in Test Mode, when DC offset error detection is run,
the detection information is not written into the E2PROM.

● Special displays while all lights are on

When all lights are on with ST ANDBY source, if the follow-

ing keys are pressed, the f ollowing messages are display ed.

[1] key

[2] key
[3] key

[4] key

[5] key

[6] key

Version is displayed (forwarding)
(Display) TYPE : x_ _ _

→ 558K – 2.05 (“development ID” – “version”)
→ all lights on →

∗ TYPE indicates µ-com destination, and shows real-time

condition of the destination terminal.
All lights ON.
Key pressed: Power ON time is displayed.
While Power ON time is displayed, press and hold for 2
seconds or longer to clear the Power ON time.
(Display)

PON_0Hxx (00~50 is displayed for “xx”)
xxxxx (00001~10922 is displayed for “xxxxx”)

Key pressed: CD operation time is displayed.
Press the key for more than 2 seconds while the CD
operation time is displayed to clear CD operation time.
(Display)

CDT_0Hxx (00~50 is displayed for “xx”)
xxxxx (00001~10922 is displayed for “xxxxx”)

Key pressed: Number of CD EJECT time is displayed.
While the CD EJECT times is displayed, press and hold
for 2 seconds or longer to clear the CD EJECT time.
(Display) EJCxxxxx MAX 65535 (times)
Key pressed: Number of times PANEL is opened/closed
is displayed.
Press the key for more than 2 seconds while the PANEL
open/close count is displayed to clear the PANEL open/
close count.
(Display) PC_xxxxx MAX 65535 (times)

[FM] ROM correction version is displayed

key (Display) ROM_R123

ROM_R – – – (When not written in)
ROM_R ∗ ∗ ∗ (When data not matching)

(“x” is displayed in hexadecimals)

MAX 10922 (hours)

MAX 10922 (hours)

[AM] IC10 adjustment status

key “E2P_OK”: Adjustment completed

“E2P_ER”:
“I2C_ER” : Communication not possible between IC10

∗ If “E2P_OK”, Pin 60 (TUN FANC OUT) should be
output as “H”.

[

]AUDIO data initialization

key (Display) AUD_INIT

]Key pressed: Forced Power OFF data displayed.

[

key While the forced power OFF data is displayed, press and

hold for 2 seconds or longer to clear the data.
(Display) POFF_ – – – (No Forced Power OFF)

[ ]Key pressed: CD information display mode ON/OFF

key While in CD information display mode, press and hold for

2 seconds or longer to clear all CD information.
∗ Please refer to the next table.

E2PROM values are still default (not determined)

and E2PROM.

PNL (Forced Power OFF because of

system µ-com panel communication error)

CD information display mode

I2C communication condition display
(Display) I2C_OK_ _

NG

[AM] CD mechanism error log display

key(switched by [ ] / [ ] keys)

↑ (Display) MCERR1_: x x ↔ MCERR2_: x x ↔

MCERR3_: x x ↔ MCERR1_: x x ↔

(“– –” or the error code is displayed for “xx”)
CD loading error log display (switched by [ ] / [ ] keys)
(Display) LDERR1_: x x ↔ LDERR2_: x x ↔

LDERR1_: x x ↔

(Number of times is displayed for “xxx”)
CD ejection error log display (switched by [ ] / [ ] keys)
(Display) EJERR1_: x x ↔ EJERR2_: x x ↔

EJERR3_: x x ↔ EJERR4_: x x ↔

EJERR1_: x x ↔

(Number of times is displayed for “xxx”)
CD time code error count data display (missing counts)
(switched by [ ] / [ ] keys)
(Display) CNT_LOSE ↔ CDDA_xxx ↔ CDROMxxx ↔

CNT_LOSE ↔

↓ (Number of times is displayed for “xxx”)

[FM]

CD time code error count data display (count not updated)

key(switched by [ ] / [ ] keys)

(Display) CNT_STAY ↔ CDDA_xxx ↔ CDROMxxx ↔

CNT_STAY ↔

(Number of times is displayed for “xxx”)

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