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EN-1284S-A
- 1 -
Service Manual
Published by Service Dept.
Printed in Japan
Clarion Co., Ltd.
7-2, Shintoshin, Chuo-ku, Saitama-shi, Saitama 330-0081 Japan
Service Dept.: 7-2, Shintoshin, Chuo-ku, Saitama-shi, Saitama 330-0081 Japan
Tel: +81-48-601-3705 FAX: +81-48-601-3804
298-6532-00 Nov.2007
Model
RENAULT Genuine
MW/FM Tuner
Audio Unit (160W Type)
EN-1285S-A
(Genuine number 28013 JY10B)
SPECIFICATIONS
Radio section
Tuning system:
PLL frequency synthesizer system
Receive range:
MW 531kHz to 1,602kHz
FM
87.5MHz to 108.0MHz
Quieting sensitivity:
MW Less than 25dBuV
(at 20dB S/N)
FM
Less than 15dBuV
(at 30dB S/N)
S/N:
MW More than 45dB
(74dBuV,0dB=1.4V)
FM
More than 50dB
(55dBuV,0dB=VOL MAX)
Stereo separatrion:
FM
More than 20dB
(65dBuV,1kHz,
MOD 75kHz-Dev)
More than 10dB
(65dBuV,7kHz,
MOD 75kHz-Dev)
Auto tuning stop sensivity:
MW 30 +6/-6 dBu
FM
27 +6/-6 dBu
External 6CD changer / AUX Input section
Separation:
More than 52dB
(IN 1kHz,1.2V,OUT 2.5V=0dB)
S/N:
More than 70dB
(IN 1kHz, 1.2V,OUT 7V=0dB)
Distortion:
Less than 0.2%(IN 1kHz, 1.2V)
General
Load impedance:
4 ohm/4ch
Output power:
40Wx4ch Type
B/U consumption:
Less than 0.25A
Power supply voltage: 13.2V DC(10.5V to 16V)
Ground:
Negative
Dimensions(mm):
187.4(W) x 58.2(H) x 172.7(D)
Weight:
Approx. 0.8kg
NOTES
*
The tuner of this unit is DSP-TUNER type. When the
tuner pack(BL101) is exchanged, it is necessary to ad-
just for S-meter etc. with special JIG.
*
Individual data of each unit is recorded in EEPROM
IC(IC401). When EEPROM IC is replaced, it is neces-
sary to write the data.
*
DSP IC(IC201) is fixed with solder. Special JIG is nec-
essary for removing it.
*
We cannot supply PWB with component parts in prin-
ciple. When a circuit on PWB has failure, please repair it
by component parts base. Parts which are not mentioned
in service manual are not supplied.
*
Specifications and design are subject to change without
notice for further improvement.
COMPONENT
EN-1285S-A
1.
Main unit
-----------
1


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EN-1284S-A
- 2 -
To engineers in charge of repair or
inspection of our products.
Before repair or inspection, make sure to follow the
instructions so that customers and Engineers in charge
of repair or inspection can avoid suffering any risk or
injury.
1. Use specified parts.
The system uses parts with special safety features against fire
and voltage. Use only parts with equivalent characteristics
when replacing them.
The use of unspecified parts shall be regarded as remodeling
for which we shall not be liable. The onus of product liability
(PL) shall not be our responsibility in cases where an accident
or failure is as a result of unspecified parts being used.
2. Place the parts and wiring back in their original positions after
replacement or re-wiring.
For proper circuit construction, use of insulation tubes, bond-
ing, gaps to PWB, etc, is involved. The wiring connection and
routing to the PWB are specially planned using clamps to keep
away from heated and high voltage parts. Ensure that they are
placed back in their original positions after repair or inspec-
tion.
If extended damage is caused due to negligence during re-
pair, the legal responsibility shall be with the repairing com-
pany.
3. Check for safety after repair.
Check that the screws, parts and wires are put back securely
in their original position after repair. Ensure for safety reasons
there is no possibility of secondary ploblems around the re-
paired spots.
If extended damage is caused due to negligence of repair, the
legal responsibility shall be with the repairing company.
4. Caution in removal and making wiring connection to the parts
for the automobile.
Disconnect the battery terminal after turning the ignition key
off. If wrong wiring connections are made with the battery con-
nected, a short circuit and/or fire may occur. If extensive dam-
age is caused due to negligence of repair, the legal responsi-
bility shall be with the repairing company.
5. Cautions in soldering
Please do not spread liquid flux in soldering.
Please do not wash the soldering point after soldering.
6. Cautions in soldering for chip capacitors
Please solder the chip capacitors after pre-heating for replace-
ment because they are very weak to heat.
Please do not heat the chip capacitors with a soldering iron
directly.
7. Cautions in handling for chip parts.
Do not reuse removed chips even when no abnormality is ob-
served in their appearance. Always replace them with new
ones. (The chip parts include resistors, capacitors, diodes, tran-
sistors, etc).
Please make an operation test after replacement.
8. Cautions in handling flexible PWB
Before working with a soldering iron, make sure that the iron
tip temperature is around 270
. Take care not to apply the
iron tip repeatedly(more than three times)to the same patterns.
Also take care not to apply the tip with force.
9. Turn the unit OFF during disassembly and parts replacement.
Recheck all work before you apply power to the unit.
TROUBLESHOOTING
ACC: Q301,D301,D302
VDD+5V: IC503,D506
B/U DET: IC504
Power doesn't turn on
Power supply of B/U
and ACC
1
CHECK ITEM
CHECK POINT
CAN Line: IC403
Display
2
CAN Line: IC402
SYS+5V: Q506
Key operation
3
Around IC402 and IC403
-----
4
Line between IC402 and IC201
Output wave form of IC201
(DSP)
3
SYS+3.3V: IC501
DSP1.8V: Q201
No sound
Power supply of IC201
(DSP)
2
CHECK ITEM
CHECK POINT
Audio CPU: IC402
Key operation
1
SYS+9V: IC502
Around IC301
Output wave form of IC301
(20k LPF)
4
Output wave form of IC304
(POWER-IC)
5
Around IC304
-----
TUN+9V: Q503
TUN+5V: Q501
TUN+9V, TUN+5V
3
Tuner pack and ANT line
Radio doesn't work
SEEK
2
CHECK ITEM
CHECK POINT
Connection of antenna
Input of antenna
1
Tuner-I2C line
Output wave form of CCT401,
R415 and R416
Line between tuner and
IC402
4
Output of IF-signal
5
Tuner pack BL101
6
DSP: IC201


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EN-1284S-A
- 3 -
Rear view of unit
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
C
B
A
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
1
3
GND
N.C. GND
+B
No.
1
2
3
4
5
6
7
8
9
10
11
12
Pin Name
M-CAN H1
M-CAN L1
ZT-L
NC
TEL-MUTE
NC
NC
NC
SPDIF GND
NAVI IN(-)
TEL GND
TEL IN(-)
No.
13
14
15
16
17
18
19
20
21
22
23
24
Pin Name
M-CAN H2
M-CAN L2
ZT-H
NC
IR-GND
TEL-MUTE
INPUT SYS-ON
NC
NC
NAVI IN(+)
NAVI GND
TEL IN(+)
J301 (TH24 HW)
ANT101
Main Antenna
Receptacle (AM/FM1)
ANT102
Sub Antenna
Receptacle (FM2)
J701 (ISO 36P)
AB
C
No.
1
2
3
4
5
6
7
8
Pin Name
REAR RCH(+)
REAR RCH(-)
FRONT RCH(+)
FRONT RCH(-)
FRONT LEFT(+)
FRONT LEFT(-)
REAR LEFT(+)
REAR LEFT(-)
No.
1
2
3
4
5
6
7
8
Pin Name
NC
GND
NC
B/U
NC
NC
NC
GND
No.
1
2
3
4
5
6
7
8
9
10
Pin Name
EXT-AMP ON
INFO LINE IN
INFO LINE REF
LINE IN RCH
SHIELD AUDIO
LINE IN LCH
N.C.
N.C.
EXT-AMP ON
N.C.
No.
11
12
13
14
15
16
17
18
19
20
Pin Name
N.C.
(S-WOOF-SHD)
UART TX
UART RX
UART GND
NC
UART REQ
SPDIF-CDC
SPDIF-GND
CDC-GND
Tuner
Audio Unit
EN-1285S
CD Auto
Changer
PN-2940S
DISP
System_on_req
System_on
System_on
SPDIF
UART
M-CAN
V-CAN
For vehicle
Sound
Speakers
CORUM SW
(Renault)
Handsfree kit
Tel Voice
analog
AUX JACK
Tel -on
SYSTEM
CONNECTORS


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EN-1284S-A
- 4 -
BLOCK DIAGRAM
ANT-MAIN
(ANT101)
ANT-SUB
(ANT102)
AM/FM-TUNER
MAIN-TUNER
(AM/FM)
(FM)
SUB-TUNER
(BL101)
PHANTOM-ANT+B
PHANTOM-ANT+B
SUB-ANT
MAIN-ANT
(Q104,Q106,Q111)
(Q102,Q105,Q112)
(IC101)
DIAGNOSTIC
IC
AUDIO-MICOM
(IC402)
48Kbyte
RAM
1Mbyte
ROM
EEP-ROM
(IC401)
RESET-IC
(IC404)
RE-PROGRAM
(P401)
B/U-DETECT
(IC504)
ACC-DET
(Q301)
DSP-IC
(IC201)
BEEP
20K-LPF
(IC301)
BOSE-AMP-ON
I/F
TEL-ON
SIGNAL
CAN-TRANCEIVER
(IC403)
TEL-AUDIO
I/F
I/F
NAVI-AUDIO
4CH-POWER-IC
(IC304)
B/U-FILTER
SPDIF-AUDIO
I/F
U-ART
I/F
AUX-AUDIO-INPUT
AUX-ON-SIGNAL
POWER-SUPPLY
SYS+12V(Q504)
VDD+5V(IC503)
SYS+9V(IC502)
SYS+3.3V(IC501)
SYS+1.8V(Q201)
SYS+5V(Q506)
TUNER+9V
(Q503)
TUNER+5V (Q501)
RADIO(FM/AM)
RADIO(FM)
SPDIF
AUX
AUDIO-OUTPUT
NAVI
TEL
B/U
GND
SYS-ON
(J701)
(J701)
(J701)
(J701)
(J701)
FROM
ITM
FROM
ITM
(J301)
(J301)
(J301)
(J301)
(J301)
(J701)
CAN-ComLink
or
HFK
TO
EXT-AMP-ON
FROM
HFK
FROM
DMB
or
AUXJACK
6CD-CHG
FL+/-
FR+/-
RL+/-
RR+/-


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EN-1284S-A
- 5 -
EXPLANATION OF IC
M30879FLAGP
Microcomputer
[ NOTE ]
When this IC is exchanged, it is necessary to write the program be-
cause the program is not written in this IC.
pin
1: NU
: - : Not in use.
pin
2: IRI
: IN : The remote control signal input.
pin
3: ST EEP SDA
:I/O: Serial data input/output for the Sub-tuner
and the EEPROM.
pin
4: ST EEP CK
: O : Serial clock output to the Sub-tuner and
the EEPROM.
pin
5: BU DET
: IN : Backup detection signal input.
pin
6: BYTE
: IN : Data length selection(8bit/16bit).
pin
7: CN VSS
: IN : Connect to VSS via a resistor.
pin
8: NU
: O : Not in use.
pin
9: SYS ON
: O : System ON signal output.
pin 10: RESET
: IN : Reset signal input.
pin 11: X out
: O : Crystal connection.
pin 12: VSS
: - : Negative voltage supply.
pin 13: X in
: IN : Crystal connection.
pin 14: VCC
: - : Positive voltage supply.
pin 15: NMI
: IN : Nonmaskable interrupt. Connect to VDD
via a resistor.
pin 16: SYS ON IN
: IN : System ON signal input.
pin 17: M CAN RX
: IN : M-CAN serial data input.
pin 18: M CAN TX
: O : M-CAN serial data output.
pin 19: PIC DIAG 1
: IN : Power IC diagnosis signal input.
pin 20: NDS RX
: IN : NDS serial data input from NDS-A/C.
pin 21: NDS REQ
: IN : The request pulse from NDS.
pin 22: NDS TX
: O : NDS serial data output to NDS-A/C.
pin 23: PIC STND 1
: O : Power IC standby signal output.
pin 24: BEEP
: O : Beep out.
pin 25: EXT AMP ON
: O : ON signal output for the external amplifi-
er.
pin 26: NU
: - : Not in use.
pin 27: MT SCK
: O : Serial clock output to the Main-tuner.
pin 28: MT SDA
:I/O: Serial data input/output for Main-tuner.
pin 29: DSP/P-IC CK
: O : DSP/Power-IC clock pulse output.
pin 30: DSP/P-IC DA
:I/O: DSP/Power-IC serial data input/output.
pin 31: FLASH CK
: IN : Flash memory Clock.
pin 32: FLASH BUSY
: O : Flash memory busy signal output.
pin 33: PIC STND 2
: O : Power IC standby signal output.
pin 34: NU
: O : Not in use.
pin 35: NU
: O : Not in use.
pin 36: PIC DIAG 2
: IN : Power IC diagnosis signal input.
pin 37: NU
: O : Not in use.
pin 38: A DIAG ON
: O : Diagnosis control signal output for the
external-amplifier-on-signal-line.
pin 39: FLASH EPM
: O : Flash memory EPM.
pin 40: A DIAG C
: IN : Open detection signal input for the exter-
nal-amplifier-on-signal-line.
pin 41: A DIAG S
: IN : Short detection signal input for the exter-
nal-amplifier-on-signal-line.
pin 42: NU
: O : Not in use.
pin 43: NU
: O : Not in use.
pin 44: FLASH CE
: O : Flash memory Chip enable.
pin 45: NU
: O : Not in use.
pin 46: NU
: O : Not in use.
pin 47: NU
: O : Not in use.
pin 48: NU
: O : Not in use.
pin 49: NU
: O : Not in use.
pin 50: NU
: O : Not in use.
pin 51: NU
: O : Not in use.
pin 52: NU
: O : Not in use.
pin 53: NU
: O : Not in use.
pin 54: NU
: O : Not in use.
pin 55: DSP INT
: IN : Initial signal input from the DSP IC.
pin 56: MT MUTE
: O : Main-tuner mute output.
pin 57: MT SAMPLE
: IN : Main-tuner sample input.
pin 58: NU
: O : Not in use.
pin 59: ST SAMPLE
: IN : Sub-tuner sample input.
pin 60: VDD
: - : Positive voltage supply.
pin 61: NU
: O : Not in use.
pin 62: GND
: - : Ground.
pin 63: ST HOLD
: IN : AF-hold-signal input from the Sub-tuner.
And M-hold signal input from the DSP.
pin 64: ST S METER
: IN : Input of internal A/D converter to monitor
the radio field strength for the Sub-tuner.
pin 65: NU
: O : Not in use.
pin 66: DSP PAUSE
: IN : DSP automatic mute control. L = mute on.
pin 67: MT HOLD
: IN : AF-hold-signal input from the Main-tuner.
And S-hold signal input from the DSP.
pin 68: MT S METER
: IN : Input of internal A/D converter to monitor
the radio field strength for the Main-tun-
er.
pin 69: NU
: O : Not in use.
pin 70: RDS DA 2
: IN : RDS 2 serial data input. (Sub-tuner)
pin 71: RDS CL 3
: IN : RDS 3 serial clock input. (TMS)
pin 72: RDS CL 2
: IN : RDS 2 serial clock input. (Sub-tuner)
pin 73: RDS CL 1
: IN : RDS 1 serial clock output. (Main-tuner)
pin 74: RDS DA 1
: IN : RDS 1 serial data input. (Main-tuner)
pin 75: RDS DA 3
: IN : RDS 3 serial data input. (TMS)
pin 76: M AGC DET
: IN : Main-tuner AGC detection.
pin 77: S AGC DET
: IN : Sub-tuner AGC detection.
pin 78: DSP RESET
: O : Reset signal output to the DSP IC.
pin 79: NU
: O : Not in use.
pin 80: NU
: O : Not in use.
pin 81: NU
: O : Not in use.
pin 82: NU
: O : Not in use.
pin 83: NU
: O : Not in use.
pin 84: RT N OFF
: O : Noise clear signal output to the TMC-tun-
er.
pin 85: RT NOISE
: IN : Input terminal of the internal ADC to
sense the RDS-noise-level from the TMC-
tuner.
pin 86: RT S METER
: IN : Input terminal of internal A/D converter to
monitor the radio field strength for the
TMC-tuner.
pin 87: PHA ON 1
: O : Phantom circuit ON signal output for An-
tenna-1.
pin 88: STBY
: O : The standby signal output.
pin 89: WAR
: IN : Warning signal input from DIAGNOSTIC
PROCESSOR.
pin 90: PHA ON 2
: O : Phantom circuit ON signal output for An-
tenna-2.
pin 91: PHA DIAG B 1 : IN : Phantom power supply line short detection
signal input.
pin 92: P/L
: O : The resistance changing-signal output for
the diagnosis IC.
pin 93: PHA DIAG B 2 : IN : Phantom power supply line short detection
signal input.
pin 94: A VSS
: - : Analog ground.
pin 95: INFO AUX IN
: IN : 0V="+B", 3V="Open", 5V="Ground"
pin 96: Vref
: - : Reference voltage.
pin 97: A VCC
: - : Positive voltage supply for the internal
analog section.
pin 98: DIAG TMC CK : O : Diagnosis & TMC serial clock output.
pin 99: DIAG TMC DA :I/O: Diagnosis & TMC serial data input/output.
pin100: TUNER ON
: O : The tuner ON signal output.