PIONEER CORPORATION
4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC.
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER EUROPE NV
Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 2003
K-ZZD. JAN. 2003 Printed in Japan
ORDER NO.
CRT3004
Service
Manual
HONDA
FX-MG7027ZH/UC
MULTI-CD/XM TUNER CONTROL FM/AM CASSETTE DECK WITH 6 DISC IN-DASH CD CHANGER
FX-MG7027ZH
UC
For details, refer to "Important symbols for good services".
FX-MG7127ZH UC
VEHICLE
DESTINATION
PRODUCED AFTER
HONDA PART No.
ID No.
PIONEER MODEL No.
ACURA RL
U.S.A., CANADA
February 2003
39100-SZ3R-A700
3TL0
FX-MG7027ZH/UC
ACURA RL
U.S.A., CANADA
February 2003
39100-SZ3R-A600
3PL0
FX-MG7127ZH/UC
- This service manual should be used together with the following manual(s):
Model No.
Order No.
Mech. Module Remarks
CX-1011
CRT2406
3L
Cassette Mech. Module:Mech.Description, Disassembly
CX-890
CRT2376
G1
CD Mech. Module:Circuit Description, Mech.Description, Disassembly
- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
MULTI-CD CONTROL FM/AM CASSETTE DECK WITH 6 DISC IN-DASH CD CHANGER
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[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely.
When you find the procedures bearing any of the symbols, be sure to fulfill them:
2. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable.
In accordance with the procedures or instructions described in this manual, adjustments should be performed.
3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning,
proper cleaning should be performed to restore their performances.
5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying
glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the
prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed
ones should be used.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or
the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
1. Product safety
You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and
should keep the safety during servicing by following the safety instructions described in this manual.
- CD section precaution
1. Before disassembling the unit, be sure to turn off the
power. Unplugging and plugging the connectors dur-
ing power-on mode may damage the ICs inside the
unit.
2. To protect the pickup unit from electrostatic dis-
charge during servicing, take an appropriate treat-
ment (shorting pin) by referring to "the DISASSEM-
BLY" on page 91.
3. After replacing the pickup unit, be sure to check the
grating. (See p.83.)
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.
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CONTENTS
SAFETY INFORMATION ........................................................................................................................................................2
1. SPECIFICATIONS ...................................................................................................................................................................4
2. EXPLODED VIEWS AND PARTS LIST ..................................................................................................................................5
2.1 PACKING ..........................................................................................................................................................................5
2.2 EXTERIOR(FX-MG7027ZH/UC) .......................................................................................................................................6
2.3 EXTERIOR(FX-MG7127ZH/UC) .....................................................................................................................................10
2.4 CD MECHANISM MODULE...........................................................................................................................................12
2.5 CASSETTE MECHANISM MODULE .............................................................................................................................16
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM...............................................................................................................18
3.1 BLOCK DIAGRAM ..........................................................................................................................................................18
3.2 OVER ALL CONNECTION DIAGRAM(GUIDE PAGE)(FX-MG7027ZH/UC)..................................................................20
3.3 OVER ALL CONNECTION DIAGRAM(GUIDE PAGE)(FX-MG7127ZH/UC)..................................................................26
3.4 FM/AM TUNER UNIT.....................................................................................................................................................32
3.5 CD CORE UNIT(SERVO UNIT), MOTOR PCB(B) ..........................................................................................................34
3.6 CD CORE UNIT(STS UNIT), MOTOR PCB(A) ...............................................................................................................36
3.7 PCB UNIT(A,B,C,D,E), LOAD MOTOR PCB ..................................................................................................................41
3.8 CASSETTE MECHANISM MODULE .............................................................................................................................42
4. PCB CONNECTION DIAGRAM............................................................................................................................................44
4.1 TUNER AMP ASSY ........................................................................................................................................................44
4.2 FM/AM TUNER UNIT.....................................................................................................................................................48
4.3 KEYBOARD UNIT...........................................................................................................................................................50
4.4 CD CORE UNIT(SERVO UNIT) ......................................................................................................................................52
4.5 CD CORE UNIT(STS UNIT) ...........................................................................................................................................54
4.6 MOTOR PCB(A)..............................................................................................................................................................56
4.7 PCB UNIT(E) ...................................................................................................................................................................57
4.8 MOTOR PCB(B) ..............................................................................................................................................................58
4.9 PCB UNIT(B)...................................................................................................................................................................60
4.10 PCB UNIT(D) ................................................................................................................................................................60
4.11 PCB UNIT(C).................................................................................................................................................................61
4.12 LOAD MOTOR PCB......................................................................................................................................................62
4.13 PCB UNIT(A) ................................................................................................................................................................62
4.14 DECK UNIT ...................................................................................................................................................................63
4.15 REEL SENSE PCB ........................................................................................................................................................64
5. ELECTRICAL PARTS LIST....................................................................................................................................................65
6. ADJUSTMENT .....................................................................................................................................................................80
6.1 TUNER AND DOLBY NR ADJUSTMENT .....................................................................................................................80
6.2 CLOCK ADJUSTMENT(FX-MG7027ZH/UC).................................................................................................................82
6.3 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT ...........................................................................83
7. GENERAL INFORMATION...................................................................................................................................................85
7.1 DIAGNOSIS ....................................................................................................................................................................85
7.1.1 TEST MODE ................................................................................................................................................................85
7.1.2 DISASSEMBLY............................................................................................................................................................91
7.1.3 PCB LOCATIONS.........................................................................................................................................................97
7.1.4 CONNECTOR FUNCTION DESCRIPTION..................................................................................................................98
7.2 PARTS.............................................................................................................................................................................99
7.2.1 IC ..................................................................................................................................................................................99
7.2.2 DISPLAY ....................................................................................................................................................................103
7.3 EXPLANATION.............................................................................................................................................................104
7.3.1 SYSTEM BLOCK DIAGRAM .....................................................................................................................................104
7.3.2 OPERATIONAL FLOW CHART .................................................................................................................................105
7.4 NOTES ON SERVICING ...............................................................................................................................................106
7.4.1 CLEANING.................................................................................................................................................................106
7.4.2 FACTORY SETTINGS................................................................................................................................................106
8. OPERATIONS .....................................................................................................................................................................107
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1. SPECIFICATIONS
General
Power source .............13.2V DC (10.8-- 16.0 V allowable)
Backup current .................................................5mA or less
Grounding system........................................Negative type
Dimensions(Chassis)..............180(W)
x102(H)x168(D)mm
(Grille)(FX-MG7027ZH/UC)....214(W)
x109(H)x15(D)mm
(Grille)(FX-MG7127ZH/UC)....219(W)
x119(H)x14(D)mm
Weight........................................................................2.75kg
Cassette player
Tape ................................Compact cassette tape(C30-C90)
Tape speed ......4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.)
Wow and flutter .................................0.2% or less(WRMS)
Crosstalk ..........................................................40dB or less
Separation .....................................................30dB or more
S/N .................................................................40dB or more
Distortion.............................................................3% or less
CD player
System ...................................Compact disc audio system
Usable discs ..................................................Compact disc
Signal format .....................Sampling frequency : 44.1kHz
.....................................Number of guantization : 16;linear
S/N .................................................................60dB or more
Stereo separation ...............................55dB or more(1kHz)
Distortion..........................................................0.1% or less
FM tuner
Frequency........................................87.75, 87.9107.9 MHz
S/N .................................................................50dB or more
Distortion..........................................................1.3% or less
IF interference ...............................................82dB or more
Image interference........................................46dB or more
Stereo separation ...............................26dB or more(1kHz)
AM tuner
Frequency ......................................................5301710 kHz
Selectivity .......................................55dB or more(±10kHz)
S/N .................................................................44dB or more
Distortion..........................................................1.0% or less
IF interference ...............................................61dB or more
Image interference........................................51dB or more
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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.
- For the applying amount of lubricants or glue, follow the instructions in this manual.
( In the case of no amount instructions, apply as you think it appropriate.)
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2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
- PACKING SECTION PARTS LIST
Mark No. Description
Part No.
1 ID Card(FX-MG7027ZH/UC) CEE1019
ID Card(FX-MG7127ZH/UC) CEE1022
*
2 Name Plate
CAL6370
(FX-MG7027ZH/UC)
*
Name Plate
CAL6371
(FX-MG7127ZH/UC)
3 Polyethylene Bag
CEG1229