Kenwood KD-CW-312-G Service Manual
CD RECEIVER
KDC-W241AY/W241GY
KDC-W3041A/W3041AY
KDC-W3041G/W3041GY
KDC-W312A/W312AY
KDC-W312G/W312GY/W312SAY
SERVICE MANUAL
© 2007-10 PRINTED IN JA PA N
B53-0579-00 (N) 223
Panel assy
KDC-W241AY/W241GY (A64-4292-02)
KDC-W241
Panel assy
KDC-W312A/AY (A64-4290-02)
KDC-W312G/GY (A64-4290-02)
KDC-W312SAY
(A64-4293-02)
KDC-W312
Panel assy
KDC-W3041xx (A64-4289-02)
KDC-W3041
TDF SPARE-PANEL
MAIN UNIT NAME TDF PARTS No. TDF NAME
KDC-W241AY Y33-2840-66 TDF-W241A
KDC-W241GY Y33-2840-67 TDF-W241G
KDC-W3041A Y33-2840-60 TDF-W3041A
KDC-W3041AY Y33-2840-60 TDF-W3041A
KDC-W3041G Y33-2840-61 TDF-W3041G
KDC-W3041GY Y33-2840-61 TDF-W3041G
KDC-W312A Y33-2840-62 TDF-W312A
KDC-W312AY Y33-2840-62 TDF-W312A
KDC-W312G Y33-2840-63 TDF-W312G
KDC-W312GY Y33-2840-63 TDF-W312G
KDC-W312SAY Y33-2840-68 TDF-W312SA
Lever
(D10-4589-04) x2
Escutcheon
(B07-3122-01)
DC cord
(E30-6427-05)
Mounting hardware assy
(J21-9716-03)
Carrying case
(W01-1691-05)
This product uses Lead Free solder.
This product complies with the
RoHS directive for the European market.
KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
BLOCK DIAGRAM
ELECTRIC UNIT (X34- )
J2
IC7
RDS
DECODER
IC8
RESET IC
to GND
PANEL DET
S2
ANT.
SW5
1
J2
A1
TUNER
FRONT-END
333
IC1
BU5
RESET
IC3
REMOTE
SWITCH UNIT (X16- )
AM+B
A8V
SW5
IC2 or IC3
A8V
ROM CORRECTION (NOT USED)
12
J3
CN
J1
S1
ROTARY
F-AUX
ENCODER
SW5
SW5
IC10
E2PROMSW5
SYSTEM u-COM
SW5
2
111
PAN5V
E-VOL
Q301
BU5
A8V
SERVO+B
5
VFD
DRIVER
BU
11
IC1
9
DME1
MUTE
ILLUMI+B
CD
MECHA
R11-15
1/2W
Rx5
16
1
FL+B
KEY
ILLUMI
KEY
MATRIX
R80,81
1/4W
Rx2
Q901-903
DC-DET
BU
IC6
POWER
2
IC
1
J5
PRE-OUT
FRONT/
REAR/SW
PS1 1 / PS1 2 / PS1 3
Q705
1
PS2 1 / PS2 2
BU DET
RST
BU5
9
Q701,702
PRE-OUT
MUTE
BU5
BU5
MUTE
DC-CN etc
PHONE
ACC DET / BU DET
P.ON FL
PS1-1 / PS1-2 / PS1-3
PS2-1 / PS2-2
SERVO+B
FL+B
ILLUMI+B
ED1
5
VFD
PHONE
ACC DET
BU DET
FL+B
AM+B
SW5
A8V
SW5
D5
BU5
R103
PHONE
Q101
ACC-DET
Q103
BU-DET
Q102
SURGEDET
IC4
POWER
SUPPLY
IC
Q2
CD
SERVO
Q8,9
ILLUMI
+B
Q7
SW14V
BU5
BU5
P.ON FL
J1
DC-CN
PHONE
SP-OUT
ACC
B.U.
P-ANT
P-CON
DPU1
A
E
C
FO COIL
TR COIL
DM1
LOADING &
SPINDLE
MOTOR
DM2
LOADING &
SLED
MOTOR
CD PLAYER UNIT (X32-597x-xx)
IC4
SIGNAL
B
F
Q1
APC
IC3
FO OUT
TR OUT
MOTOR
DRIVER
DM OUT
FM OUT
A,B,C,E,F
LD
VREF
FO OUT
TR OUT
DM OUT
FM OUT
CLOCK
16.934MHz
RF AMP
+
SERVO
PROCESSOR
+
MP3 DECODER
+
WMA DECODER
+
AAC DECODER
+
1M bit SRAM
X1
D GND
BU1.5V
SRAMSTB
SW1.5V
SW3.3V
IC11
BU1.5V REG
Q11
LEVEL
SHIFT
SO
Q12
SI
LEVEL
BUCK
MRST MRST
ZDET MUTE L/R
A3.3V
AGND
SHIFT
Q10
CCE
LEVEL
SHIFT
PIO0
R246,247
LEVEL
SHIFT
C87,R83
L-ch L-ch
CR FILTER
C88,R82
R-ch
CR FILTER
Q13
REVERSAL
CIRCUIT
IC7
3.3V REG
IC5
SW1.5V REG
IC6
SW3.3V REG
(0-01)
ONLY
MOTHER
BOARD
(X34- )
SRAMSTB
SO
SI
BUCK
CCE
PIO0
R-ch
A8V
A.GND
BU5V
P.ON
D.GND
S1
LOS-SW
S2
12EJE-SW
S3
LOE-SW
S4
8EJE-SW
DRV MUTE
LO/EJ
MOTOR
S7.5V
S.GND
2
KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
COMPONENTS DESCRIPTION
ELECTRIC UNIT (X34-565x-xx)
●
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 System µ-COM Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone.
IC2,3 E-VOL Controls the source, volume and tone.
IC4 Power Supply IC Outputs 5Vx2, 8.1Vx2, 10.2V, P-CON and P-ANT.
IC6 Power IC Amplifi es the front L/R and the rear L/R to 50W maximum.
IC7 RDS IC RDS decoder.
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 VFD+B SW ON when the base goes Hi.
Q8 VFD+B AVR When Q9’s base goes Hi, Servo+B AVR outputs 10.5V.
Q9 Control SW for VFD+B ON when the base goes Hi.
Q11 14V SW ON when the base goes Hi.
Q12 14V SW 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.
Q104,105 Mute Control ON when the base goes Hi.
Q301 Panel 5V SW ON when the base goes Lo.
Q402 Quick Charge Voltage SW Charges voltage quickly when the base goes Hi.
Q701,702 Pre-out Mute SW When a base of the 4 transistors goes Hi, pre-out is muted.
Q705 Mute Driver for Pre-out ON when the base goes Lo.
Q901 DC Offset DET ON when the base goes Hi after Q902’s and Q903’s outputs are separated.
Q902,903 DC Offset DET SW ON when the bases go Lo after IC6’s SP-OUTs (DC) are separated.
SWITCH UNIT (X16-617x-xx)
●
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 VFD Driver
IC3 Remote Control Sensor
CD PLAYER UNIT (X32-5970-02)
●
Ref. No. Application / Function Operation / Condition / Compatibility
IC3 4ch BTL Driver
IC4 Servo DSP with built-in Audio DAC With built-in MP3/WMA/AAC decoder and 1M-bit-SRAM.
IC5 D1.5V REG. Power supply for digital 1.5V.
IC6 D3.3V REG. Power supply for digital 3.3V.
IC11 BU1.5V REG. Power supply for back-up 1.5V.
Q1 APC (Auto Power Control) Drives LD (Laser Diode).
Driver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc
loading & ejection.
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KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
COMPONENTS DESCRIPTION
Ref. No. Application / Function Operation / Condition / Compatibility
Q10~12 5V–3.3V Level Shift Converts signal from 5V to 3.3V, or from 3.3V to 5V.
Q13 Inverter Inverts ZDET signal.
D1 Level Down
D2 Laser Diode Protection Prevents reverse bias which is applied to laser. Laser destruction prevention.
D3,4 Static Electricity Countermeasure Prevents malfunction by static electricity.
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.
4
KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
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 Pull-down (GND)
2 LX CLK I/O LX-BUS clock 125k~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 - Memory extended bus width setting Connects to VSS
9 CNVSS - Connects to VSS
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 VCC
18 PANEL DET
19,20 NC - Not used Output L fi xed
21 ROMCOR DET I E2PROM writing request H: 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 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 CLK O VFD clock output 125kHz
34 VFD BLK O VFD data blanking output
35 CD SI O CD mechanism serial output
36 CD SO I CD mechanism serial input
37 BUCK O Serial clock output 1MHz
38 CD LOS SW I CD loading detection
39 PIO0 I
40 CD SRAMSTB O 1M-bit SRAM standby H: SRAM standby
41 EPM I Flash EPM input Connects to VSS
42
CD LOE LIM SW
- L: Reset
I Panel communication detection H: Panel detached, L: Panel attached
I/O Panel 5V control
Communication request from mechanism DSP
I CD detection (Chucking SW) H: Loading completed, L: No disc
Truth Value
Tab le
Processing Operation Description
ON: L, Momentary power down/Panel detached:
Hi-Z, 11 minutes after ACC OFF: Hi-Z
H: Reset cancelled, L: Reset, Momentary power down
/Panel detached: L, 11 minutes after ACC OFF: L
H: Data request
5
KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application
43 PON CD O CD mechanism power supply control H: Power ON
44 CD LOEJ I/O CD motor control
45 CD MOTOR I/O CD motor control
46 VFD CE O VFD control request
47
48 CD CCE O CD mechanism chip enable
49 NC - Not used
50 CD MRST O CD mechanism µ-com 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 Pull-up (B.U.)
56 ROTARY CCW I VOL key input Detects pulse width
57 ROTARY CW I VOL key input Detects pulse width
58~61 NC - Not used Output L fi xed
62 VCC2 -
63 NC - Not used Output L fi xed
64 VSS -
65 NC - Not used
66 TUN IFC OUT I Front-end IFC-OUT input H: Station found, L: No station
67 PON EXT GND I/O IC2 external input quick charge control
68 MUTE I/O Mute L: Mute OFF, Hi-Z: Mute ON
69 ANALOG CON O AUX/LX audio switching
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 NC - Not used
75 LX REQ S I Communication request from slave unit Pull-down (GND)
76 PWIC SVR O SVR discharging 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
81~83 NC O Not used Output L fi xed
84 TUN SMETER I S-meter input
CD DRIVEMUTE
O Motor driver mute output
I ACC power supply detection ACC found: L, No ACC: H
I Detection of momentary power down
Truth Value
Tab le
q
q
Processing Operation Description
Refer to the truth value table
Refer to the truth value table
L: OFF, Hi-Z: Quick charge, When IC2 is in source select:
Hi-Z, Mute L: L, Momentary power down/Power OFF: L
AUX: H (Switches after 100ms after fi rst-out mute
begins to work), LX/Other source: L
During 500ms after power OFF and momentary
power down: H, Since then: L
STANDBY source/Momentary power down: L,
TEL mute: L
BU found: L, No BU/Momentary power down: H
(Operates after less than 4ms after momentary
power down is detected)
6
KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No. Pin Name I/O Application
85 TYPE1 I Destination switching
86 TYPE2 I Destination switching
87 PWIC DC DET I DC offset detection
88 LINE MUTE I Line mute detection TEL mute: Below 1V, NAVI mue: Over 2.5V
89 OFFSET DET I Power IC offset detection
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 Pull-down (GND)
Truth Value
Tab le
e
e
r
r
r
r
r
Processing Operation Description
Refer to the truth value table
Refer to the truth value table
If DC offset is found 20 times in 100ms with condition
of over 1.0V, it will be judged as DC offset 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
Destination switching
e
TYPE 2
(Pin 86)
2.4V 0V
2.4V 1.2V
2.4V 2.4V
TYPE 1
(Pin 85)
KDC-W3037A/W3037G/
W311A/W311G/W4037
KDC-W3537A/W3537G
KDC-W237A/W237G
Model
Power supply IC (IC4) control
r
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-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
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
Press and hold the [1] key and [3] key and reset.
EJ CXXXXX
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.
All lamps blink when it is detected that the sub-clock resonator is disconnected.
Do not display “CODE_OFF”, “CODE_ON” or “CODE_NG” when Power is ON.
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 ON
System Q NATURAL (FLAT)
Preout Rear
8
KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
TEST MODE
Special displays when all lights are on in STANDBY source
■
Key Description of display Description
Common
■
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
AM ROM data transfer
■
Audio data initialization
Forced Power OFF
information display
CD information display
mode ON/OFF
■
TYPE:11
704A2–5.00
00000000
PON 0HX X
PONXXXXX
CDT 0HXX
CDTXXXXX
EJ CXXXXX
PC XXXXX
RO123
ERR
R––––
R
∗∗∗∗
AUD I N I T
POFF –––
POF F SEC
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 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.
The number is the ROM correction version number.
When E2PROM is not installed.
When not written in yet.
When data not matched. (due to the difference in versions)
AUDIO setting value is re-set to the test mode default value.
No forced power OFF
Forced power OFF because of missing Security Code.
(Code security supporting model)
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.
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KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
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-ROM (Compressed fi le) number of 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-ROM (Compressed fi le) Number of count errors
XX: Number of errors. “– –” is displayed in case there is no error.
FM
(forward
rotation)
AM
(reverse
rotation)
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)
MCE RR 1:X X
MCE RR 2:X X
MCE RR 3:X X
LDERR1:XX
LDERR2:XX
EJERR1:XX
EJERR2:XX
EJERR3:XX
EJERR4:XX
CNT LOSE
CDDA :X X
CDROM :XX
CNT STAY
CDDA :X X
CDROM :XX
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KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
TEST MODE
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
• TUNER preset operation
Key Description of display Description
4 Preset function
• 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
6 K3I Forced switching
TNE2P NG
TNCON NG
TNTYP NG
FM1 98.3A 4
FM1 98.1A
FM1 98.1W
FM1 98.1M
FM1 98.1N
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 (A1)
E2PROM and the product.
Change to 98.3MHz with the preset key [4].
AUTO
Forced WIDE
Forced MIDDLE
Forced NARROW
• RDS auto measurement
Add the process to replace the visual inspection of PS display previously done in the production line.
Status Display Description
PS data reception
RDS T EST
If displayed as shown at the left, force to OFF.
P-CON is recovered by Power OFF/ON.
• FST adjustment mode
Perform FST soft-mute adjustment.
Key Note
■
Operations in the FST adjustment mode are as follows:
Key Description of display Description
FM (UP)
AM (DOWN)
■
After completing the FST adjustment, if You wish to clear the test mode, You can do this using the reset button.
Enter the FST adjustment mode. (Press for 1 second or longer.)
Soft-mute adjustment
Adjustment value
memory
Mode clear
SMD– F
EP WR I TE
FM1 98.3A4
18dBµ (0) ↔ 36dBµ (F)
Displays the data that has been written in the E2PROM when
pressing the key for 2 seconds or longer.
Clear the FST adjustment mode. (Returns to normal display
and the test mode is retained.)
11
KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
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
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
Mechanism model name
Mechanism version
6 Jump procedure
Used media: For CD, KTD-02A
6E00:
Every time pressed, jumps to the track shown below.
No.9 → No.15 → No.10 → No.11 → No.12 → No.13 →
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 Mechanism model name and Mechanism version.
(When key is pressed while the display in the left is being
shown, returns to normal display.)
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)
For item
forwarding
procedure,
press [AUD]
key and
[FM] key
Press the [B.BOOST] key for 1 second or longer Switch Bass Boost (Note: Front key functions as MENU.)
Balance [VOL] knob and [
Bass Level [VOL] knob and [
Middle Level [VOL] knob and [
Treble Level [VOL] knob and [
LPF Sub woofer [VOL] knob and [ / ] key
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)). ( ) means all models other than KDC-W241AY/W241GY.
/ ] 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)
Adjust to 2 steps of 80Hz ↔ Through. (Default value: Through)
(Only in models with Sub Woofer output)
/ ] key Adjust to 3 steps of -8 ↔ 0 ↔ +8. (Default value 0)
→
[ATT] key operation
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In the TUNER source, press [
12
Procedure Note
] key ATT OFF/ON
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