Service
Manual
RENAULT
SCU-2456ZRN/X1B/EW
ORDER NO.
CRT2457
SYSTEM CONTROL UNIT
SCU-2456ZRN X1B/EW
SCU-2556ZRN X1B/EW
VEHICLE |
DESTINATION |
PRODUCED AFTER |
PART No. |
ID No. |
PIONEER MODEL No. |
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ESPACE and AVANTIME |
EUROPE |
March 2000 |
6025 40 3834 |
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SCU-2456ZRN/X1B/EW |
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ESPACE and AVANTIME |
EUROPE |
March 2000 |
6025 40 2759 |
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SCU-2556ZRN/X1B/EW |
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CONTENTS
1. |
SAFETY INFORMATION ............................................ |
2 |
7. |
GENERAL INFORMATION ....................................... |
36 |
2. |
EXPLODED VIEWS AND PARTS LIST ....................... |
2 |
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7.1 CONNECTOR FUNCTION DESCRIPTION ......... |
36 |
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..... |
9 |
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7.2 IC ........................................................................ |
38 |
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4. PCB CONNECTION DIAGRAM ................................ |
18 |
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7.3 OPERATIONAL FLOW CHART ........................... |
40 |
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5. |
ELECTRICAL PARTS LIST ........................................ |
24 |
8. |
SPECIFICATIONS...................................................... |
41 |
6. ADJUSTMENT.......................................................... |
34 |
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PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2000 |
K-ZZS. FEB. 2000 Printed in Japan |
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SCU-2456ZRN,2556ZRN
1. SAFETY INFORMATION
This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
1
2
3
5
4
6
7
2
SCU-2456ZRN,2556ZRN
NOTE:
-Parts marked by “*” are generally unavailable because they are not in our Master Spare Parts List.
-Screws adjacent to mark on the product are used for disassembly.
-PACKING SECTION PARTS LIST
Mark No. Description |
Part No. |
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1 |
Cover |
UHD-026 |
2 |
Protector |
UHP-020 |
3 |
Polyethylene Bag |
UEG-012 |
4 |
Protector |
UHP-018 |
5 |
Protector |
UHP-019 |
6 |
Protector |
UHP2266 |
7 |
Contain Box(2456ZRN) |
UHL3974 |
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Contain Box(2556ZRN) |
UHL3975 |
3
SCU-2456ZRN,2556ZRN
2.2 EXTERIOR(SCU-2456ZRN)
4
SCU-2456ZRN,2556ZRN
- EXTERIOR SECTION PARTS LIST
Mark No. Description |
Part No. |
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1 |
Screw |
BMZ30P060FMC |
2 |
Screw |
BMZ30P140FMC |
3 |
Chassis |
CNA2288 |
4 |
Case |
CNB1780 |
5 |
Insulator |
CNM3864 |
6 |
Cover |
CNS4018 |
7 |
Screw |
BMZ30P140FMC |
8 |
Heat Sink |
CNC7755 |
9 |
Tuner Amp Unit |
UWM6914 |
10,11 |
••••• |
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12 |
Connector(CN652) |
CKS3180 |
13 |
Connector(CN852) |
CKS3181 |
14 |
Connector(CN701) |
CKS3182 |
15 |
DIN Socket(CN651) |
CKS3185 |
16 |
Connector(CN851) |
CKS3186 |
17 |
DIN Socket(CN653) |
CKS3189 |
18 |
••••• |
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19 |
Holder |
CNC5105 |
20 |
Holder |
CNC5107 |
21 |
Holder |
CNC5433 |
22 |
••••• |
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23 |
FM/AM Tuner Unit |
CWE1416 |
24-28 |
••••• |
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29 |
Holder |
CNC6555 |
30 |
••••• |
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31 |
Screw |
BMZ30P060FMC |
32 |
••••• |
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33 |
Fuse(10A) |
CEK1136 |
34 |
Connector(CN551) |
CKM1258 |
35 |
••••• |
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36 |
Holder |
CNC5106 |
37 |
Holder |
CNC5435 |
38 |
Holder Unit(CN501) |
CXA6151 |
39 |
IC(IC901) |
PA2024A |
40 |
Transistor(Q906) |
2SA1358 |
41 |
••••• |
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42 |
IC(IC551) |
TDA7385 |
5
SCU-2456ZRN,2556ZRN
2.3 EXTERIOR(SCU-2556ZRN)
6
SCU-2456ZRN,2556ZRN
- EXTERIOR SECTION PARTS LIST
Mark No. Description |
Part No. |
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1 |
Screw |
BMZ30P060FMC |
2 |
Screw |
BMZ30P140FMC |
3 |
Chassis |
CNA2289 |
4 |
Case |
CNB1780 |
5 |
Insulator |
CNM3864 |
6 |
Cover |
CNS4018 |
7 |
Screw |
BMZ30P140FMC |
8 |
Heat Sink |
CNC7755 |
9 |
Tuner Amp Unit |
UWM6917 |
10,11 |
••••• |
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12 |
Connector(CN652) |
CKS3180 |
13 |
Connector(CN852) |
CKS3181 |
14 |
Connector(CN701) |
CKS3182 |
15 |
DIN Socket(CN651) |
CKS3185 |
16 |
Connector(CN851) |
CKS3186 |
17 |
DIN Socket(CN653) |
CKS3189 |
18 |
Pin Jack(CN401) |
CKS3200 |
19 |
Holder |
CNC5105 |
20 |
Holder |
CNC5107 |
21 |
Holder |
CNC5433 |
22 |
••••• |
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23 |
FM/AM Tuner Unit |
CWE1416 |
24-28 |
••••• |
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29 |
Holder |
CNC6555 |
30 |
••••• |
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31 |
Screw |
BMZ30P060FMC |
32 |
••••• |
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33 |
Fuse(10A) |
CEK1136 |
34 |
Connector(CN551) |
CKM1258 |
35 |
••••• |
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36 |
Holder |
CNC5106 |
37 |
Holder |
CNC5435 |
38 |
Holder Unit(CN501) |
CXA6151 |
39 |
IC(IC901) |
PA2024A |
40 |
Transistor(Q906) |
2SA1358 |
41 |
••••• |
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42 |
IC(IC551) |
PAL003A |
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SCU-2456ZRN,2556ZRN
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM |
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A TUNER AMP UNIT |
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B FM/AM TUNER UNIT |
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CN501 |
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Q3 |
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T31 |
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Q31 |
CF51 |
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CF52 |
CF53 |
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FM RF |
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FM MIX |
FM IF |
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FM IF |
FM IF |
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T51 |
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Q401 |
Q403 |
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FM/AM |
25 |
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ANTENNA |
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26 |
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41 |
9 10 |
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2 |
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14 15 |
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19 |
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1 |
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FM |
34 |
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FM/AM PROCESSOR |
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FM PROCESSOR |
19 |
7 |
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OSC |
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IC1 |
PA4023B |
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IC2 |
PA4024A |
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Q704 |
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Q201 Q202 |
6 |
38 32 36 |
16 |
18 |
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31 30 |
28 |
33 |
40 |
7 |
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AM RF/AGC |
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AMIFC VCO |
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CF232 |
AM IF |
Q165 |
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FMSL |
9 |
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FMTV |
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FMSD |
COMP |
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OSC |
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AMSL 18 |
Q508 |
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AMTV |
AM |
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AM+B |
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FM+B |
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TUN+B |
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19 20 |
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15 17 |
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14 |
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13 |
21 |
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5 |
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6 |
2 |
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VR501 |
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AM+B |
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FM+B |
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SL |
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TUN+B |
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RDS HIC |
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FMSD |
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IC502 |
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TUNER PLL |
14 |
FM LOOP FILTER |
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15 |
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CWV1065 |
21 |
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17 |
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Q503 Q504 |
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IC501 |
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16 LC72146M |
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19 |
Q501 Q502 |
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FMSD |
20 |
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1 |
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CN852 |
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X501 |
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Rch |
2 |
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HEADPHONE |
3 |
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AM LOOP FILTER |
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OUT |
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1 |
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Lch |
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A
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X1 |
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42 |
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SYSTEM |
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CONTROLLER |
X2 |
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IC701(1/2) |
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X701 |
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34 |
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TMUTE |
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PE5157A |
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SL |
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FMSD |
AVPOW |
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52 |
1 |
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VDD2 |
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Q705
VDD
SWITCH
SWVDD
HEADPHONE
TRANSMITTER
B
SCU-2556ZRN ONLY
CN401 |
AUX-IN 6 IC404 |
7 |
AUX IN |
NJM4558MD |
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CN851
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TUNER-L |
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5 |
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CASSETTE |
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CN651 |
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AUDIO MIX |
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HEADPHONE-Lch OUT |
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1 |
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PLAYER |
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TAPE-L |
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IC403 |
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1 |
AUDIO-Lch OUT |
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3 |
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2 |
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7 DMUTE |
Q405 |
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2 |
NJM4558MD |
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Q853 |
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Q851 |
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7 |
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10 |
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DECK |
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VCC |
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MUTE |
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8.4V |
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M-CD |
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REGULATOR |
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Q855 |
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PLAYER |
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CN652 |
BRST |
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9 |
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FIX |
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8 |
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TUN+B |
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4 |
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MUTE |
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7 |
IC901 |
B.U |
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5 |
CD-L |
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FM+B |
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3 |
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AM+B |
PA2024A |
6 |
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5 |
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VCC |
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DISPLAY |
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CN653 |
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ELECTRONIC |
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2 |
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2 |
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4 |
5 |
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VOLUME CONTROL |
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SYSPW |
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1 |
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19 |
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8 |
3 |
5 |
BSET |
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FL |
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Lch |
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6 |
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7 |
6 |
BINH |
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5 |
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OUT |
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SWVDD |
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ZCINL |
IC751 |
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PMJ002A |
RL |
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CN701 |
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OUT 20 |
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Q906 |
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2 |
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SW+B |
SW+B |
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B.U |
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VDT/VCK/VST |
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3 |
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Q905 |
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IR |
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REMIN |
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RECEIVER |
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Q908 |
Q904 |
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SOFT MUTE |
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RL |
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Q553 |
Q551 |
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FL |
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Q703 |
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MUTE |
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MUTE |
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13 |
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BRST |
SYSTEM |
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CONTROLLER |
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7 |
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MUTE |
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IC701(2/2) |
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8 |
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BSET |
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4 |
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PE5157A |
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23 |
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26 |
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BINH |
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KDT1 |
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KDT1 |
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36 |
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25 |
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25 |
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REMIN |
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KDT2 |
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KDT2 |
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54 |
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22 |
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24 |
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TELMUT |
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KDT0 |
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KDT0 |
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37 |
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28 |
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23 |
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BSENS |
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AMPMUTE |
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KST1 |
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FL |
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KST1 |
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35 |
SYSPW |
PEE |
29 |
RL |
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22 |
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RESET |
KST2 |
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KST2 |
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38 |
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27 |
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21 |
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ASENS |
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KST0 |
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KST0 |
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20 |
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14 |
2 |
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POWER AMP |
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19 |
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15 |
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18 |
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SYSPW |
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15 |
IC551 |
RLOUT+ |
17 |
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15 |
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19 |
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16 |
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PEE |
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RLIN |
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RLOUT- |
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7 |
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14 |
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FLIN |
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FLOUT- |
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9 |
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13 |
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5V REGULATOR/SENSE |
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11 |
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FLOUT+ |
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STBY MUTE |
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IC902 PAJ001A |
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SYSPW |
4 |
22 |
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11 |
MUTESENS 12 |
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MUTEOUT |
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B.U |
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BSENS |
5 |
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BSENIN 13 |
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ACCMUT |
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ACC |
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7 |
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RESET |
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RSTIN |
3 |
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VDD |
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6 |
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Q555 |
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ASENS |
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2 |
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9 |
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MUTE |
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VDD |
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ASENIN |
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VDD2 |
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4 |
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BUPIN 14 |
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B.U |
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ACC |
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5 |
Lch OUTPUT |
TRANSMITTER |
1 |
Lch INPUT |
INTERFACE |
3 |
SIGNAL GND |
|
7 |
VCC (8.5V) |
|
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FRONT Lch FIX EQUALIZER |
|
|
|||||||
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||||||||
3 |
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1 |
3 |
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1 |
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IC201 |
|
IC202 |
|
|||||||
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NJM4558MD |
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NJM4558MD |
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2 |
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Q201 |
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Q203 |
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253Hz |
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117Hz |
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Q205 |
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5.4kHz |
|
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REAR Lch FIX EQUALIZER |
|
|
|||||||
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||||||||
3 |
|
IC251 |
1 |
3 |
|
IC252 |
1 |
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|||
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NJM4558MD |
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NJM4558MD |
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Q251 |
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Q253 |
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C |
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141Hz |
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250Hz |
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Q255 |
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RL-OUT |
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1.45kHz |
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FL-OUT |
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BUP1 |
27 |
IN1 |
FUSE 10A |
28 |
BUP2 |
||
L5 |
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IN0 |
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L1 |
|
B.U |
IN2 |
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L0 |
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|
GND |
|
|
CONC CONB CONA
RL- |
-FR |
FR+ |
-RR |
RR+ |
GND |
ACC |
ANT+B |
BUP TELMUTE |
|
||
RL+ |
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||||||||||
FL- |
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FL+ |
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12 |
11 10 |
9 |
8 |
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6 5 |
4 |
3 2 |
1 |
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7 |
|||||||||
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D
Q702
TELMUTE
9
|
1 |
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2 |
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3 |
|
4 |
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||||
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1 |
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2 |
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3 |
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4 |
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|
SCU-2456ZRN,2556ZRN
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”.
B
A
|
|
Large size |
A-a |
A-b |
SCH diagram |
|
||
A-a |
A-b |
Guide page |
A-a |
A-b |
Detailed page |
A-a
B
2R2K(B) |
AUX:-15.0dBs
AM:-22.4dBs
FM:-12.5dBs
TAPE:-12.1dBs |
AM:-22.4dBs |
FM:-12.5dBs |
M-CD:-3.8dBs |
AUX:-15.0dBs |
C |
|
|
|
|
|
|
|
M-CD:-3.7dBs |
|
|
|
TAPE: |
|
|
|
|
-12.1dBs |
|
|
D |
|
|
|
|
10 |
A |
|
|
|
|
1 |
2 |
3 |
4 |
|
5 |
|
6 |
|
7 |
|
8 |
|
|
|
|
|
|
SCU-2456ZRN,2556ZRN
A-b
A
|
|
|
B |
|
|
TAPE:-4.6dBs |
|
|
|
AM:-8.1dBs |
|
|
|
FM:2.4dBs |
|
|
|
M-CD:2.9dBs |
|
|
|
AUX:-10.0dBs |
|
|
|
TAPE:21.8dBs |
|
|
|
AM:18.1dBs |
C |
|
|
FM:28.6dBs |
|
|
|
M-CD:29.0dBs |
|
|
|
AUX:16.3dBs |
|
|
|
|
D |
|
|
A TUNER AMP UNIT |
|
|
|
|
A 11 |
5 |
6 |
7 |
8 |
|
1 |
2 |
3 |
|
4 |
|
|
|
|
SCU-2456ZRN,2556ZRN |
|
|
|
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||
|
1 |
|
2 |
3 4 5 |
6 |
|
|
|
|
A-b |
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|
A-a |
|
|
|
|
TAPE:-12.1dBs |
AM:-22.4dBs |
FM:-12.5dBs |
-MCD:-3.8dBs |
AUX:-15.0dBs |
A |
|
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|
|
|||||
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|
|
AUX:-15.0dBs |
|
|
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B |
|
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|
|
AM:-22.4dBs |
FM:-12.5dBs |
|
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C |
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|
2R2K(B) |
D |
B |
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12 |
A-a |
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1 |
2 |
3 |
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4 |
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5 |
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6 |
7 |
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8 |
|
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|
|
SCU-2456ZRN,2556ZRN |
|||
7 |
8 |
9 |
10 |
11 |
12 |
13 14 |
15 |
16 17 |
|
|
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A-b |
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A-a |
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A |
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|
B |
M-CD:-3.7dBs TAPE: -12.1dBs
C
D
A-a 13
|
5 |
|
6 |
|
7 |
|
8 |
|
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||||
|
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