kenwood KDC-MP142, KDC-MP142CR, KDC-MP242, KDC-MP243, KDC-MP243SW Service Manual
...
CD RECEIVER
KDC-MP142/MP142CR
KDC-MP242/MP243
KDC-MP243SW/MP3043
KDC-MP343/MP343S/MP443
SERVICE MANUAL
© 2008-9 PRINTED IN JA PAN
B53-0677-00 (N) 313
KDC-MP142 : Panel assy (A64-4647-02)
KDC-MP142
KDC-MP242 : Panel assy (A64-4645-02)
KDC-MP242
KDC-MP243SW : Panel assy (A64-4653-02)
KDC-MP243SW
KDC-MP343 : Panel assy (A64-4651-02)
KDC-MP343
KDC-MP443 : Panel assy (A64-4648-02)
KDC-MP443
* Escutcheon
(B07-xxxx-xx)
* Carrying case
(W01-1710-05)
KDC-MP142CR : Panel assy (A64-4646-02)
KDC-MP142CR
KDC-MP243 : Panel assy (A64-4649-02)
KDC-MP243
KDC-MP3043 : Panel assy (A64-4650-02)
KDC-MP3043
KDC-MP343S : Panel assy (A64-4652-02)
KDC-MP343
TDF SPARE-PANEL
MAIN UNIT NAME
KDC-MP142 Y33-2990-12 TDF-MP91D
KDC-MP142CR Y33-2990-11 TDF-MP91DCR
KDC-MP242 Y33-2990-10 TDF-MP92D
KDC-MP243 Y33-2990-22 TDF-MP243
KDC-MP243SW Y33-2990-25 TDF-MP243SW
KDC-MP3043 Y33-2990-24 TDF-MP343S
KDC-MP343 Y33-2990-23 TDF-MP343
KDC-MP343S Y33-2990-24 TDF-MP343S
KDC-MP443 Y33-2990-21 TDF-MP443
TDF PARTS No.
TDF NAME
Mounting hardware assy
(J22-0789-03)
Screw (4x16)
(N84-4016-48)
* Depends on the model. Refer to the parts list.
* DC cord
(E30-xxxx-xx)
Screw set
(N99-1757-15)
* Plastic cabinet assy
(A02-2755-13)
Lever
(D10-7049-04) x2
This product complies with the
* Remote controller assy (RC-5xx)
(A70-xxxx-xx)
Battery
(Not supplied)
This product uses Lead Free solder.
RoHS directive for the European market.
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
BLOCK DIAGRAM
ELECTRIC UNIT (X34- )
J2
1
IC7
RDS
DECODER
3
ANT.
SW5
A1
TUNER
FRONT-END
3
3
IC1
IC8
RESET IC
BU5
PANEL DET
J2
S2
RESET
IC2
REMOTE
SWITCH UNIT (X16- )
J4
AM+B
LX-BUS
A8V
SW5
A8V
ROM CORRECTION (NOT USED)
8
12
RST
J3
J1
to GND
S1
FRONT
AUX
ROTARY
ENCODER DRIVER
SW5
SW5
BU
IC2
IC10
E2PROMSW5
SYSTEM u-COM
E-VOL
SW5
SERVO+B
111
Q301
PAN5V
CN
2
BU5
IC1
BU5
BU
DME1
CD
MECHA
16
1
1
MUTE
11
BU5
5
R11-15
1/2W
FL+B
Rx5
IC6
2
POWER
IC
1
Q701-704
PRE-OUT
MUTE
BU5
BU5
MUTE
9
DC-CN etc
PHONE
ACC DET / BU DET
P.ON FL
PS1-1 / PS1-2 / PS1-3
PS2-1 / PS2-2
CN4,J5
PRE-OUT
FRONT
REAR/SW
PS1 1 / PS1 2 / PS1 3
PS2 1 / PS2 2
Q705
BU DET
RST
1
AM+B
SERVO+B
ILLUMI+B
R61,62
FL+B
1/4W
Rx2
ED1
5
FL
9
KEY
ILLUMI
S3-20
KEY
MATRIX
D3-17
FL
ILLUMI+B
PHONE
ACC DET
BU DET
P STBY
FL+B
SW5
A8V
SW5
D5
BU5
R118
Q101
ACC-DET
Q103
Q102
IC4
POWER
SUPPLY
IC
Q2,3
Q11,12
Q7-10
PHONE
BU-DET
SURGE
DET
CD
SERVO
SW14V
ILLUMI
+B
BU5
BU5
SW5
J1
DC-CN
PHONE
SP-OUT
FRONT L/R
REAR L/R
ACC
B.U.
P-ANT
P-CON
DPU1
ACB
EF
FO COIL
TR COIL
DM1
SPINDLE
MOTOR
DM2
LOADING &
SLED
MOTOR
CD PLAYER UNIT (X32-6240-00)
IC4
SIGNAL A/B/C/E/F
Q1
APC
IC3
FO OUT
TR OUT
MOTOR
DRIVER
DM OUT
FM OUT
PD
LD
VREF
FO OUT
TR OUT
DM OUT
FM OUT
X1
CLOCK
16.934MHz
RF AMP
+
SERVO
PROCESSOR
+
MP3 DECODER
+
WMA DECODER
+
AAC DECODER
+
1M bit SRAM
D GND
BU1.5V
D1.5V
D3.3V
SRAM STB
BUCK
MRST MRST
Q11
LEVEL
SHIFT
SO
Q12
SI
LEVEL
SHIFT
Q10
CCE
LEVEL
PIO0
SHIFT
R15
LEVEL SHIFT
RESISTOR
C43
Lch Lch
FILTER
C44
Rch
FILTER
Q13
IC5
BU1.5V/
D3.3V
REG
REVERSAL
CIRCUIT
ZDET MUTE L/R
A3.3V
AGND
Q14
D1.5V
OUTPUT
S1
S2
S3
MOTHER
BOARD
(X34- )
SRAM STB
SO
SI
BUCK
CCE
PIO0
Rch
A.GND
BU5V
P.ON
D.GND
LOS-SW
12EJE-SW
LOE-SW
DRV MUTE
LO/EJ
MOTOR
S7.5V
S.GND
2
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
COMPONENTS DESCRIPTION
ELECTRIC UNIT (X34-621x-xx)
●
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 System μ-COM Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone.
IC2 E-VOL Controls the source, volume, tone.
IC4 Power Supply IC Outputs 5V×2, 8.1V×2, 10.2V, P-CON, P-ANT.
IC6 Power IC Amplifi es the front L/R and the rear L/R to 50W maximum.
IC8 Reset IC Lo when detection voltage goes below 3.6V.
Q2 Servo+B AVR When Q3’s base goes Hi, Servo+B AVR outputs 7.5V.
Q3 Control SW for Servo+B ON when the base goes Hi.
Q7 FL+B SW ON when the base goes Hi.
Q8 FL+B AVR When Q9’s base goes Hi, Servo+B AVR outputs 10.5V.
Q9 Control SW for FL+B ON when the base goes Hi.
Q10 FL+B SW ON when the base goes Lo.
Q11 14V SW ON when the base goes Hi.
Q12 14V SW ON when the base goes Lo.
Q13 Control SW for IC4 ON when the base goes Hi.
Q14 Control SW for IC4 ON when the base goes Lo.
Q101 ACC DET ON when the base goes Hi during ACC is applied.
Q102 Serge DET When the base goes Hi, surge voltage is detected.
Q103 BU DET ON when the base goes Hi during BU is applied.
Q104 Mute Control ON when the base goes Hi.
Q105 Mute Control ON when the base goes Hi.
Q301 Panel 5V SW ON when the base goes Lo.
Q701~704 Pre-out Mute SW When a base goes Hi, pre-out is muted.
Q705 Mute Driver for Pre-out ON when the base goes Lo.
SWITCH UNIT (X16-646x-xx)
●
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 FL Driver
IC2 Remote Control Sensor
CD PLAYER UNIT (X32-6240-00)
●
Ref. No. Application / Function Operation / Condition / Compatibility
IC3 4ch BTL Driver
IC4 Servo DSP with built-in Audio DAC With built-in MP3/WMA/ACC decoder and 1M-bit-SRAM.
IC5 BU1.5V/D3.3V REG.
Q1 APC (Auto Power Control) Drives LD (Laser Diode).
Q10~12 5V-3.3V Level Shift Converts signal from 5V to 3.3V, or from 3.3V to 5V.
Driver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc
loading & ejection.
Power supply for BU1.5V.
Power supply for digital/analogue/audio 3.3V.
3
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
COMPONENTS DESCRIPTION
Ref. No. Application / Function Operation / Condition / Compatibility
Q13 Inverter Inverts ZDET (Zero data DETection) signal.
Q14 D1.5V Output
D1 Level Down
D2 Laser Diode Protection
D3,4 Static Electricity Countermeasure Prevents malfunction by static electricity.
Switches ON/OFF at one end of BU1.5V line which is separated into 2 directions.
Uses output voltage as D1.5V.
Lowers signal level by about 1.2V so that Lo level signal that turns the regulator ON/OFF
surely becomes Lo judgment level of the regulator SW.
Prevents reverse bias which is applied to laser.
Laser destruction prevention.
4
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
MICROCOMPUTER’S TERMINAL DESCRIPTION
SYSTEM μ-COM: IC1 on X34- (ELECTRIC UNIT)
●
Pin No. Pin Name I/O Application
1 LX DATA M I/O Data to slave unit
2 LX CLK I/O LX-BUS clock 125kHz~65kHz
3~5 NC - Not used Output L fi xed
6 REMO I Remote control signal input Detects pulse width
7 NC - Not used Output L fi xed
8 BYTE I Memory extension bus width setting Connects to VSS
9 CNVSS - Connects to VSS, H: Possible to rewrite fl ash ROM
10 XCIN - 32.768kHz
11 XCOUT - 32.768kHz
12 RESET
13 XOUT - 10.0MHz
14 VSS -
15 XIN - 10.0MHz
16 VCC1 -
17 NMI I Connects to VSS
18 PANEL DET
19,20 NC - Not used Output L fi xed
21 ROMCOR DET I E2PROM writing request H: E2PROM writing
22,23 NC - Not used Output L fi xed
24 PON FL O Key illumination power supply control ON: H, OFF: L
25 NC - Not used Output L fi xed
26 PON PANEL
27,28 NC - Not used Output L fi xed
29 AUD SCL I/O E-VOL clock input/output
30 AUD SDA I/O E-VOL data input/output
31 VFD SYS DATA O VFD data output
32 VFD PAN DATA I VFD data input
33 VFD CL O VFD clock output 125kHz
34 VFD XBLK O VFD data blanking output
35 CD SI O CD mechanism serial output
36 CD SO I CD mechanism serial input
37 CD CLK O Serial clock output (Only when playing MP3) f=1MHz
38 CD LOS SW I CD loading detection
39 CD PIO0 I
40 CD SRAMSTB
41 EPM I Flash ROM EPM input
- L: Reset
I Panel communication detection H: Panel detached, L: Panel attached
I/O Panel 5V control
Communication request from mechanism DSP
O 1M-bit SRAM standby L: SRAM standby
Truth Value
Table
Processing Operation Description
ON: L / 11 minutes after momentary power-down,
panel detached or ACC OFF: Hi-Z
H: Reset cancelled, L: Reset
11 minutes after momentary power-down, panel
detached or ACC OFF: L
H: Data request
L: Possible to rewrite fl ash ROM
Connects to VSS (Never set it to output H)
5
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application
42
43 PON CD O CD mechanism power supply control H: Power supply ON
44 CD LOEJ I/O CD motor control
45 CD MOTOR I/O CD motor control
46 VFD CSB O VFD control request
47
48 CD CCE O CD mechanism chip enable
49 NC - Not used Output L fi xed
50 CD RST O CD mechanism reset H: Normal, L: Reset
51~53 NC - Not used Output L fi xed
54 CD MUTE I CD mute request L: Mute request
55 CD DISC12 SW I 12cm disc detection
56 ROTARY CCW I VOL key input (Counter-clockwise) Detects pulse width
57 ROTARY CW I VOL key input (Clockwise) Detects pulse width
58,59 NC - Not used Output L fi xed
60 RDS DATA I/O RDS decoder data input (Terminal for European model)
61 RDS QUAL I RDS decoder QUAL input (Terminal for European model)
62 VCC2 -
63 NC - Not used Output L fi xed
64 VSS -
65 NC - Not used Output L fi xed
66 TUN IFC OUT I Front-end IFC-OUT input H: Station detected, L: No station
67 NC - Not used Output L fi xed
68 MUTE I/O Mute L: Mute OFF, Hi-Z: Mute ON
69 PWIC DC ERR I
70 LX RST O Forced reset to slave unit H: Reset, L: Normal
71 LX CON O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF
72 LX MUTE I Mute request from slave unit H: Mute ON, L: Mute OFF
73 LX REQ M O Communication request to slave unit
74 RDS CLK I/O RDS decoder clock input (Terminal for European model)
75 LX REQ S I Communication request from slave unit
76 PWIC SVR O SVR discharge circuit
77 PWIC STBY O Power IC standby control Power ON: H, Power OFF: L
78 PWIC MUTE O Power IC mute
79 ACC DET
80 BU DET
CD LOE LIM SW
CD DRIVEMUTE
I CD detection (Chucking SW) H: Loading completed, L: No disc
O Motor driver mute output
Detects whether power IC was short-circuited
to +B or GND
I ACC power supply detection ACC detected: L
I Momentary power-down detection
Truth Value
Table
q
q
Processing Operation Description
Refer to the truth value table
Refer to the truth value table
L: Wrong connection
During 500ms after power OFF or momentary power-
down: H, Since then: L
STANDBY source or momentary power-down: L,
TEL mute: L
BU detected: L, No BU or momentary power-down:
H (Operates below 4ms after momentary power-
down is detected)
6
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application
81,82 NC - Not used Output L fi xed
83 RDS NOISE I FM noise detection
84 TUN SMETER I S-meter input
85 TYPE1 I Destination SW
86 TYPE2 I Destination SW
87 AUD DC ERR I DC offset detection
88 LINE MUTE I Line mute detection TEL mute: Below 1V, NAVI mute: Over 2.5V
89 NC - Not used Output L fi xed
90 PS2 2 O Power supply IC control
91 PS2 1 O Power supply IC control
92 PS1 1 O Power supply IC control
93 PS1 2 O Power supply IC control
94 PS1 3 O Power supply IC control
95 NC - Not used Output L fi xed
96 AVSS -
97 REF CON O VREF control Connects to VREF
98 VREF -
99 AVCC -
100 LX DATA S I Data from slave unit
Truth Value
Table
w
w
w
w
w
Processing Operation Description
If DC offset is detected 20 times in 100ms with
condition below 1.0V, it will be judged as DC offset is
detected.
Refer to the truth value table
Refer to the truth value table
Refer to the truth value table
Refer to the truth value table
Refer to the truth value table
• Truth value table
CD motor control
q
CD motor CD loading/eject
Stop L L
Load H L
Eject H H
Brake H Hi-z
Power supply IC (IC4) control
w
SEL1 (Pin 10)
PS1-2 PS1-3 PS2-1 ILLUMI P-CON P-ANT
L L L OFF OFF OFF
L L H ON OFF OFF
H L H ON ON OFF
H H H ON ON ON
SEL2 (Pin 11)
PS1-1 PS2-2
L L OFF OFF
H L ON OFF
H H ON ON
AUDIO/SW5
AM
7
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
TEST MODE
Example
■
::.
Key Description of display Description
5
Disc EJECT times display
5
■
A symbol “■” in the key column indicates that the key should be pressed and held for 1 second or longer.
How to enter the test mode
■
Procedure Note
EJCXXXXX
Disc EJECT times display. MAX 65535 (times)
While disc EJECT times is displayed, press and hold for 2
seconds or longer to clear disc EJECT times.
Press and hold the [1] key and [3] key and reset.
All lamps blink when it is detected that the sub-clock resonator is disconnected.
When having started up in the test mode, change the LINE MUTE inhibition time from 10 seconds to 1 second.
When operating in the test mode, even if a DC offset error occurs, detection information is not written in the E2PROM.
When operating in the test mode, CD mechanism error log information clear mode, and DC offset error detection information clear mode, do
not perform DEMO mode operations.
Also, do not display DEMO ON/OFF option items in the MENU in STANDBY source in the above modes.
Forced disc ejection is prohibited in the test mode.
How to clear the test mode
■
Procedure Note
Reset, momentary power down, ACC OFF, Power OFF, Panel detached. Clearing the test mode
Test mode default condition
■
Description Default values
Source STANDBY
Display Display lights are all turned on.
Volume -10dB (“30” is displayed.)
Bass Boost OFF
CRSC OFF regardless of having/not having the switching function.
AUX ON1
System Q NATURAL
Preout Rear
8
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
TEST MODE
Special displays when all lights are on in STANDBY source
■
Key Description of display Description
Common
■
DISP
■
All lights ON. All lights ON.
Destination terminal
condition indication
1
Development ID condition
indication
2 Serial No. display
3
Power ON time display
3
■
4
Disc operation time display
4
■
5
Disc EJECT times display
5
■
6
Panel open/close times
display
6
■
ROM correction version
FM
display
Fluorescent indicator short
AM
check
Audio data initialization
Forced Power OFF
information display
CD information display
mode ON/OFF
DISP
TYPE:1 1
801E2– 3.00
00000000
PON 0HX X
PONXXXXX
CDT 0HX X
CDTXXXXX
EJCXXXXX
PC XXXXX
RO123
ERR
R––––
R
∗∗∗∗
AUD I N I T
POFF –––
POF F PN L
“TYPE” indicates system μ-com (IC1) destination, and shows
real-time condition of the destination terminal.
Development ID – Version (system μ-com: IC1)
Serial No. is displayed (8 digits)
00~50 is displayed for “XX”. When less than 1 hour, displayed
by displayed by increments of 10 minutes.
00001~10922 is displayed for “XXXXX”. MAX 10922 (hours)
When Power ON time is displayed, press and hold for
2 seconds or longer to clear Power ON time.
00~50 is displayed for “XX”. When less than 1 hour,
displayed by increments of 10 minutes.
00001~10922 is displayed for “XXXXX”. MAX 10922 (hours)
While the disc operation time is displayed, press and hold for
2 seconds or longer to clear the disc operation time.
(Cleared only for displayed media.)
Disc EJECT times display. MAX 65535 (times)
While disc EJECT times is displayed, press and hold for
2 seconds or longer to clear disc EJECT times.
PANEL open/close times display. MAX 65535 (times)
Press the key for more than 2 seconds while the PANEL open/
close count is displayed and PANEL open/close count is cleared.
Figures are ROM correction version number.
RXXXX (System μ-com ROM correction version)
In the case when E2PROM is not installed;
ERR (System μ-com ROM correction error)
In the case when correction data is not yet written:
R---- (System μ-com ROM correction data is not yet written)
In the case when the correction data is incompatible (Version
of data is incompatible)
R**** (System μ-com ROM correction data is incompatible)
Turns off all the lights → Turns on odd and even terminals
alternatively every 125ms (terminals that have a maximum
number of grids) → Turns on only the odd terminals → Turn
on only the even terminals →
AUDIO setting value is re-set to the test mode default value.
No forced power OFF
Forced power OFF by communication error between system
μ-com and panel.
While the forced power OFF data is displayed, press and
hold for 2 seconds to clear the data.
For the display contents, refer to “CD information display
mode” in the next section.
While in CD information display mode, press and hold for
2 seconds or longer to clear all CD information.
9
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
TEST MODE
• CD information display mode
Key Description of display Description
Mechanism error log 1 (Latest)
XX: Error number. “– –” is displayed in case there is no error.
Mechanism error log 2 (Latest)
XX: Error number. “– –” is displayed in case there is no error.
Mechanism error log 3 (Latest)
XX: Error number. “– –” is displayed in case there is no error.
Load error switch 1
XX: Number of errors. “– –” is displayed in case there is no error.
Load error switch 2
XX: Number of errors. “– –” is displayed in case there is no error.
Ejection error switch 1
XX: Number of errors. “– –” is displayed in case there is no error.
Ejection error switch 2
XX: Number of errors. “– –” is displayed in case there is no error.
Ejection error switch 3
XX: Number of errors. “– –” is displayed in case there is no error.
Ejection error switch 4
XX: Number of errors. “– –” is displayed in case there is no error.
CD time code error count data (Missing counts) mode display.
Number of CD-DA count errors
XX: Number of errors. “– –” is displayed in case there is no error.
CD time code error count data (count not updated) mode display.
Number of CD-DA count errors
XX: Number of errors. “– –” is displayed in case there is no error.
CD mecha-
/
nism error
log display
CD Load
/
error
information
display
CD Ejection
/
error
information
display
CD time
code error
/
count data
display
(Missing
counts)
CD time
code error
/
count data
display
(count not
updated)
MC E R R 1:X X
MC E R R 2:X X
MC E R R 3:X X
LDERR1:XX
LDERR2:XX
EJERR1:XX
EJERR2:XX
EJERR3:XX
EJERR4:XX
CNT LOSE
CDDA :X X
CNT STAY
CDDA :X X
Test mode specifi cations in TUNER source
■
Error is found in front-end (A1), etc. if indications below is displayed while in tuner source.
Status Display Description
Front-end (A1) E2PROM data error
Front-end (A1) communication error
Destination mismatch
TNE2P NG
TNCON NG
TNTYP NG
Front-end (A1) E2PROM is still the default (unspecifi ed) value.
Communication with front-end (A1) is not possible.
When destination is mismatch between front-end E2PROM
and the product.
• TUNER preset operation
Key Description of display Description
4 Preset function
FM1 9 8.3 A 4
Change to 98.3MHz with the preset key [4].
10
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
TEST MODE
• K3I forced switching
Every time when [6] key is pressed in tuner FM source, switched in the following order: AUTO → Forced WIDE → Forced MIDDLE → Forced
NARROW → AUTO. Default status is AUTO, and displayed as shown below.
Key Description of display Description
FM1 9 8.1 A
6 K3I Forced switching
FM1 9 8.1W
FM1 9 8.1M
FM1 9 8.1 N
• FST adjustment mode
Perform FST soft-mute adjustment.
Key Note
DISP
■
Operations in the FST adjustment mode are as follows:
FM
(UP)
AM
(DOWN)
AUD
■
AUD Mode clear
In the band where the local seek can be turned on or off (Local Seek ON/OFF), it is possible to turn on or off the local seek by pressing the [DISP]
key briefl y.
After completing the FST adjustment, if You wish to clear the test mode, You can do this using the reset button.
To enter into FST adjustment mode (Press and hold the key for 1 second)
In FM, the frequency changes to 98.3MHz
Key Description of display Description
/ Soft mute
adjustment
Seek Stop Level
adjustment
(Auto)
Seek Stop Level
adjustment
(Auto)
Seek Stop Level
/
adjustment
(Manual)
Seek Stop Level
/
adjustment
(Manual)
Adjustment
value memory
SMD - F
ATN V
ATL V
MNN V
MN L V
EP WR I TE
FM1 98.3A4
AUTO
Forced WIDE
Forced MIDDLE
Forced NARROW
0 ↔ 7
0.00(V) ↔ 5.00 (V) Normal (Local OFF)
0.00(V) ↔ 5.00 (V) Normal (Local ON)
0.00(V) ↔ 5.00 (V) Normal (Local OFF)
0.00(V) ↔ 5.00 (V) Normal (Local ON)
The display in the left column is shown when the data has
been written in E2PROM by pressing and holding the key for
2 seconds.
To clear FST adjustment (The display returns to the normal
display but the test mode is retained)
11
KDC-MP142/MP142CR/MP242/MP243/MP243SW
KDC-MP3043/MP343/MP343S/MP443
TEST MODE
Test mode specifi cations in CD source
■
Display mode default: P-Time
• Procedure in CD-DA media (KTD-02A)
Key Description of display Description
Every time pressed, jumps to the track shown below.
No.9 → No.15 → No.10 → No.11 → No.12 → No.13 →
Track up procedure
Track down procedure Goes down by 1 track from the currently played track.
1 Jump procedure
2 Jump procedure Jump to No. 14 (Blurring surface disc TCD-731RA Tr14)
Information display
3
Name of mechanism type
Mechanism version
5 Jump procedure
6 Jump procedure
9B10:
No.22 → No.14 → No.9 (recursive)
But in case the disc has 8 tracks or less, playback starts with
track No.1. (For both CD-DA and compressed fi le discs)
Jump to No. 28 (Scratch 0.7mm for MUSIC line vibration
testing)
Display of name of mechanism type
(Press the key while the display is what is shown in the left
column to return to the normal display.)
Jump to No.9 and No.22 (Preset 5 → Track 22 in other track
than Track 22, and Preset 5 → Track 9 in Track 22)
(For linearity check)
Jump to No. 15. Set the volume value to “25”.
(For 20Hz 0dB DC protection false-operation FCT checking)
Audio-related test mode
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Procedure Note
Press the [AUD] key (main unit)
Press the [AUD] and [∗] keys (Remote control)
About audio adjustment items (include both Audio Function Mode and Audio Setup Mode)
Procedure Item Procedure Description
Fader [VOL] knob and [ / ] key Adjust to 3 steps of R15 ↔ 0 ↔ F15. (Default value: 0)
Balance [VOL] knob and [
For item
forwarding
procedure,
press [AUD]
key and
[FM] key
Press and hold [MENU] key Switch Bass Boost (Note: Front key functions as MENU.)
Bass Level [VOL] knob and [
Middle Level [VOL] knob and [
Treble Level [VOL] knob and [
LPF Sub woofer [VOL] knob and [
Volume Offset [VOL] knob and [
Procedure Note
Enter audio adjustment mode (the initial item should be Fader, and then, Balance
Bass Level → Middle Level → Treble Level → SW Level → System Q → V-Offset →
LPF Sub Woofer
/ ] key Adjust to 3 steps of L15 ↔ 0 ↔ R15. (Default value: 0)
/ ] key Adjust to 3 steps of -8 ↔ 0 ↔ +8. (Default value 0)
/ ] key Adjust to 3 steps of -8 ↔ 0 ↔ +8. (Default value 0)
/ ] key Adjust to 3 steps of -8 ↔ 0 ↔ +8. (Default value 0)
/ ] key
/ ] key
Adjust to 2 steps of 80Hz ↔ Through. (Default value: Through)
(Only in models with Sub Woofer output)
Adjust to 3 steps of -8 ↔ 0 ↔ +8 (Default value: 0 and only in the
internal AUX model)
→
[ATT] key operation
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Procedure Note
In the TUNER source, press [DISP] key ATT OFF/ON
12
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