Pioneer FX-MG8247ZT/ES User manual

ORDER NO.
CRT3272
ES300
AUDIO SYSTEM
HEAD UNIT
CRT3272
PUB.NO.
Manufactured for TOYOTA
by PIONEER CORPORATION
VEHICLE DESTINATION PRODUCED
AFTER OEM PARTS No. ID No. PIONEER MODEL No.
LEXUS ES300 U.S.A., CANADA June 2004 86120-33512 P6850 FX-MG8247ZT/UC
LEXUS ES300 U.S.A., CANADA June 2004 86120-33522 P6851 FX-MG8747ZT/UC
LEXUS ES300 GENERAL ARER June 2004 86120-33531 P7835 FX-MG8247ZT/ES
LEXUS ES300 MIDDLE NEAR EAST June 2004 86120-33541 P7834 FX-MG8247ZT/Q1

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AM SA
AM SA
TAM SA
AM SA
T
TRAF
TRAF
TRAF
TRAF
ASL
ASL
MUTE
MUTE
P.SCAN
.SCAN
ASL
ASL
MUTE
MUTE
P.SCAN
.SCAN
ID No.P6850
FX-MG8247ZT/UC FX-MG8747ZT/UC
ID No.P6851
AM/SW
AM/SW
ID No.P7835
FX-MG8247ZT/ES FX-MG8247ZT/Q1
ID No.P7834
FX-MG8247ZT/UC
This service manual should be used together with the following manual(s):
Model No. Order No. Mech.Module Remarks
CX-890 CRT2376 G1 CD Mech. Module:Circuit Description, Mech.Description, Disassembly
CX-1011 CRT2406 3L CD Mech. Module: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 Corpo-
ration.
For details, refer to "Important symbols for good services".

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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.
-Service Precaution
1. 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.
2. Never attempt to turn on this unit when the CD drive
mechanism is upside down. Doing so could cause
damage or malfunction to the drive mechanism.
3. For pickup unit(CXX1313) handling, please refer
to"Disassembly"(see page 130).
During replacement, handling precautions shall be
taken to prevent an electrostatic discharge(protection
by a short pin).
4. During disassembly, be sure to turn the power off
since an internal IC might be destroyed when a con-
nector is plugged or unplugged.
5. Please checking the grating after changing the ser-
vice pickup unit(see page 117).
[ 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.

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CONTENTS
SAFETY INFORMATION.....................................................................................................................................3
1. SPECIFICATIONS ............................................................................................................................................ 5
2. EXPLODED VIEWS AND PARTS LIST............................................................................................................6
2.1 EXTERIOR(1)(FX-MG8247ZT/UC,FX-MG8747ZT/UC).............................................................................6
2.2 EXTERIOR(1)(FX-MG8247ZT/ES,FX-MG8247ZT/Q1) .............................................................................8
2.3 EXTERIOR(2)(FX-MG8247ZT/UC,FX-MG8747ZT/UC)...........................................................................10
2.4 EXTERIOR(2)(FX-MG8247ZT/ES,FX-MG8247ZT/Q1) ...........................................................................12
2.5 SERVICE MECHANISM UNIT(G1)..........................................................................................................14
2.6 CASSETTE MECHANISM MODULE....................................................................................................... 18
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM..........................................................................................20
3.1 BLOCK DIAGRAM(FX-MG8247ZT/UC,FX-MG8747ZT/UC).................................................................... 20
3.2 BLOCK DIAGRAM(FX-MG8247ZT/ES,FX-MG8247ZT/Q1).................................................................... 22
3.3 MAIN UNIT(GUIDE PAGE)(FX-MG8247ZT/UC,FX-MG8747ZT/UC).......................................................24
3.4 MAIN UNIT(GUIDE PAGE)(FX-MG8247ZT/UC,FX-MG8747ZT/UC).......................................................30
3.5 FM/AM TUNER UNIT(FX-MG8247ZT/UC,FX-MG8747ZT/UC)...............................................................36
3.6 FM/AM TUNER UNIT(FX-MG8247ZT/ES)...............................................................................................38
3.7 FM/AM TUNER UNIT(FX-MG8247ZT/Q1)...............................................................................................40
3.8 KEYBOARD UNIT.................................................................................................................................... 42
3.9 CD CORE UNIT(SERVO UNIT),MOTOR PCB(B)....................................................................................44
3.10 CD CORE UNIT(STS UNIT),MOTOR PCB(A).......................................................................................46
3.11 PCB UNIT(A,B,C,D,E), LOAD MOTOR PCB..........................................................................................51
3.12 CASSETTE MECHANISM MODULE..................................................................................................... 52
3.13 CONTROL UNIT....................................................................................................................................54
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 56
4.1 MAIN UNIT............................................................................................................................................... 56
4.2 FM/AM TUNER UNIT(FX-MG8247ZT/UC,FX-MG8747ZT/UC)...............................................................60
4.3 FM/AM TUNER UNIT(FX-MG8247ZT/ES,FX-MG8247ZT/Q1)................................................................62
4.4 KEYBOARD PCB..................................................................................................................................... 64
4.5 CD CORE UNIT(SERVO UNIT)...............................................................................................................66
4.6 CD CORE UNIT(STS UNIT) ....................................................................................................................68
4.7 MOTOR PCB(A)....................................................................................................................................... 70
4.8 MOTOR PCB(B)....................................................................................................................................... 72
4.9 PCB UNIT(B),PCB UNIT(D)..................................................................................................................... 74
4.10 PCB UNIT(C) .........................................................................................................................................75
4.11 LOAD MOTOR PCB,PCB UNIT(A) ........................................................................................................ 76
4.12 PCB UNIT(E)..........................................................................................................................................77
4.13 DECK UNIT............................................................................................................................................ 78
4.14 SENSOR UNIT ......................................................................................................................................79
4.15 CONTROL UNIT.................................................................................................................................... 80
4.16 LEFT PCB..............................................................................................................................................82
4.17 RIGHT PCB ...........................................................................................................................................83
5. ELECTRICAL PARTS LIST ............................................................................................................................84
6. ADJUSTMENT ............................................................................................................................................. 109
6.1 JIG CONNECTION DIAGRAM...............................................................................................................109
6.2 TUNER AND DOLBY NR ADJUSTMENT.............................................................................................. 112
6.3 CHECKING THE GRATING AFTER CHANGING THE PICKUP UNIT..................................................117
7. GENERAL INFORMATION........................................................................................................................... 119
7.1 DIAGNOSIS...........................................................................................................................................119
7.1.1 TEST MODE .......................................................................................................................................119
7.1.2 AVC-LAN DIAGNOSIS MODE............................................................................................................ 125
7.1.3 DISASSEMBLY...................................................................................................................................130
7.1.4 PCB LOCATIONS ...............................................................................................................................136
7.1.5 CONNECTOR FUNCTION DESCRIPTION........................................................................................137
7.2 PARTS.................................................................................................................................................... 138
7.2.1 IC ........................................................................................................................................................138
7.2.2 DISPLAY .............................................................................................................................................142
7.3 EXPLANATION ...................................................................................................................................... 144
7.3.1 SYSTEM BLOCK DIAGRAM ..............................................................................................................144
7.3.2 OPERATIONAL FLOW CHART ..........................................................................................................145
7.4 NOTES ON SERVICING........................................................................................................................ 146
7.4.1 CLEANING.......................................................................................................................................... 146
7.4.2 FACTORY SETTINGS.........................................................................................................................146
8. OPERATIONS .............................................................................................................................................. 147

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1. SPECIFICATIONS
Power source.................13.2V(10.5V-16.0V allowable) DC
Backup current..............................................0.3mA or less
Grounding system........................................Negative type
Dimensions .............................347(W)x214(H)x189(D)mm
Weight..........................................................................3.1kg
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
Stereo 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 .................................................................80dB or more
Distortion..........................................................0.3% or less
FM tuner(FX-MG8247ZT/UC, FX-MG8747ZT/UC)
Frequency........................................87.75, 87.9–107.9 MHz
S/N(MONO) ...................................................46dB or more
Distortion(30% MOD.) .....................................1.5% or less
IF interference ...............................................64dB or more
Image interference........................................35dB or more
Stereo Separation ..............................25dB or more(1kHz)
AM tuner(FX-MG8247ZT/UC, FX-MG8747ZT/UC)
Frequency ......................................................530–1710 kHz
Selectivity .......................................20dB or more(±10kHz)
S/N .................................................................42dB or more
Distortion(30% MOD.) .....................................1.5% or less
IF interference ...............................................40dB or more
Image interference........................................45dB or more
FM tuner(FX-MG8247ZT/ES, FX-MG8247ZT/Q1)
Frequency...................................................87.5–108.0 MHz
S/N(MONO) ...................................................46dB or more
Distortion(30% MOD.) .....................................1.5% or less
IF interference ...............................................64dB or more
Image interference........................................35dB or more
Stereo Separation ..............................25dB or more(1kHz)
AM(MW) tuner(FX-MG8247ZT/ES, FX-MG8247ZT/Q1)
Frequency ......................................................531–1602 kHz
Selectivity .......................................20dB or more(±10kHz)
S/N .................................................................42dB or more
Distortion(30% MOD.) .....................................1.5% or less
IF interference ...............................................40dB or more
Image interference........................................45dB or more
SW1 tuner(FX-MG8247ZT/Q1)
Frequency ..................................................2,940–4,215 kHz
..................................................4,540–5,175 kHz
..................................................5,820–6,455 kHz
..................................................7,100–7,735 kHz
S/N .................................................................38dB or more
Distortion(30% MOD.) .....................................2.5% or less
IF interference ...............................................40dB or more
Image interference........................................45dB or more
SW2 tuner(FX-MG8247ZT/Q1)
Frequency ................................................9,500–10,135 kHz
..............................................11,580–12,215 kHz
..............................................15,100–15,735 kHz
..............................................17,500–18,135 kHz
..............................................21,340–21,975 kHz
S/N .................................................................38dB or more
Distortion(30% MOD.) .....................................2.5% or less
IF interference ...............................................25dB or more
Image interference........................................25dB or more
General

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2. EXPLODED VIEWS AND PARTS LIST
2.1 EXTERIOR(1)(FX-MG8247ZT/UC,FX-MG8747ZT/UC)
N
OTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.
• Screw adjacent to mark on the product are used for disassembly.
• For the applying amount of lobricants 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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(1) EXTERIOR(1)(FX-MG8247ZT/UC,FX-MG8747ZT/UC) SECTION PARTS LIST
(2) CONTRASTTABLE
FX-MG8247ZT/UC and FX-MG8747ZT/UC are constructed the same except for the following:
Mark No. Description Part No.
1 Screw BMZ30P050FTC
2 Screw BMZ26P030FTC
3 Sheet CNM8519
4 Grille Unit See Contrast table(2)
5 Case CNB2607
* 6 Striker CNV6563
7 Insulator CNM8840
8 Insulator CNM8841
9 Insulator CNM8842
10 Seal CNM9135
* 11 Sheet CNM7707
12 Lighting Conductor CNV6450
13 Holder CNV6469
14 Label CRW1417
15 Keyboard Unit CWM9531
16 LCD(LCD1804) CAW1840
17 Connector(CN1801) CKS4361
18 Connector(CN1901) CKS4395
19 Connector(CN1902) CKS4395
20 Connector(CN1802) CKS4396
21 Connector(CN1803) CKS4396
22 Holder CNC9073
23 Sheet CNM7067
24 Rubber CNV6448
25 Rubber CNV6449
26 Lighting Conductor CNV6463
27 Rubber CNV6546
28 Connector CNV7193
29 Frame Unit CXB8727
30 Holder Unit CXB9784
31 Door CAT2190
32 Washer CBF1037
33 Spring CBH2494
34 Screw IMS20P030FTC
* 35 Bracket Unit CXB6192
36 Knob Unit CXC3056
* 37 Gear CNV6466
38 Screw IMS26P080FTC
39 •••••
40 •••••
41 Screw BPZ30P100FTC
42 •••••
43 •••••
44 •••••
45 Label CRW1425
46 Seal CNM7390
47 Seal CNM7685
* 48 55413-33020 CNS6678
* 49 55412-33220 CNS6679
50 90467-10203 CNV5641
51 Grille Assy See Contrast table(2)
52 Screw BPZ26P080FTC
53 Button(TRAF) CAC8620
54 Button(CD EJECT) CAC6782
55 Button(TEXT) CAC8559
56 Button(1) CAC8611
57 Button(2) CAC8612
58 Button(3) CAC8613
59 Button(4) CAC8614
60 Button(5) CAC8615
61 Button(6) CAC8616
62 Button(SCAN) CAC8617
63 Button(SEEK,TRACK) CAC8618
64 Button(TAPE EJECT) CAC8619
65 Button(LOAD) CAC6781
66 Button(FM) CAC8622
67 Button(TAPE) CAC8623
68 Button(DISC) CAC8624
69 Button(AM•SAT) CAC8646
70 Button(TYPE) CAC8647
71 Door See Contrast table(2)
72 Spring CBH1371
73 Holder CNV6459
74 Holder CNV6460
75 Holder CNV6461
76 Holder CNV6462
77 Holder CNV6491
78 Holder CNV6757
79 Holder CNV6758
80 Holder CNV6759
81 Holder CNV6760
82 Holder CNV6761
* 83 Earth Plate CNC9960
Mark No. Description Part No.
Mark NO Description FX-MG8247ZT/UC FX-MG8747ZT/UC
4 Grille Unit CXC3032 CXC3033
51 Grille Assy CXC2750 CXC2751
71 Door CAT2580 CAT2581

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2.2 EXTERIOR(1)(FX-MG8247ZT/ES,FX-MG8247ZT/Q1)

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(1) EXTERIOR(1)(FX-MG8247ZT/ES,FX-MG8247ZT/Q1) SECTION PARTS LIST
(2) CONTRASTTABLE
FX-MG8247ZT/ES and FX-MG8247ZT/Q1 are constructed the same except for the following:
Mark No. Description Part No.
1 Screw BMZ30P050FTC
2 Screw BMZ26P030FTC
3 Sheet CNM8519
4 Grille Unit CXC3035
5 Case CNB2607
* 6 Striker CNV6563
7 Insulator CNM8840
8 Insulator CNM8841
9 Insulator CNM8842
10 Seal CNM9135
* 11 Sheet CNM7707
12 Lighting Conductor CNV6450
13 Holder CNV6469
14 Label CRW1417
15 Keyboard Unit CWM9628
16 LCD(LCD1804) CAW1636
17 Connector(CN1801) CKS4361
18 Connector(CN1901) CKS4395
19 Connector(CN1902) CKS4395
20 Connector(CN1802) CKS4396
21 Connector(CN1803) CKS4396
22 Holder CNC9073
23 Sheet CNM7067
24 Rubber CNV6448
25 Rubber CNV6449
26 Lighting Conductor CNV6463
27 Rubber CNV6546
28 Connector CNV7193
29 Frame Unit CXB8727
30 Holder Unit CXB9784
31 Door CAT2190
32 Washer CBF1037
33 Spring CBH2494
34 Screw IMS20P030FTC
* 35 Bracket Unit CXB6192
36 Knob Unit CXC3056
* 37 Gear CNV6466
38 Screw IMS26P080FTC
39 •••••
40 •••••
41 Screw BPZ30P100FTC
42 •••••
43 •••••
44 •••••
45 Label CRW1425
46 Seal CNM7390
47 Seal CNM7685
* 48 55413-33020 CNS6678
* 49 55412-33220 CNS6679
50 90467-10203 CNV5641
51 Grille Assy See Contrast table(2)
52 Screw BPZ26P080FTC
53 Button(DIR) CAC8645
54 Button(CD EJECT) CAC6782
55 Button(P.SCAN) CAC8644
56 Button(1) CAC8611
57 Button(2) CAC8612
58 Button(3) CAC8613
59 Button(4) CAC8614
60 Button(5) CAC8615
61 Button(6) CAC8616
62 Button(SCAN) CAC8617
63 Button(SEEK,TRACK) CAC8618
64 Button(TAPE EJECT) CAC8619
65 Button(LOAD) CAC6781
66 Button See Contrast table(2)
67 Button(TAPE) CAC8623
68 Button(DISC) CAC8624
69 Button See Contrast table(2)
70 Button(ASL MUTE) CAC8625
71 Door See Contrast table(2)
72 Spring CBH1371
73 Holder CNV6459
74 Holder CNV6460
75 Holder CNV6461
76 Holder CNV6462
77 Holder CNV6491
78 Holder CNV6757
79 Holder CNV6758
80 Holder CNV6759
81 Holder CNV6760
82 Holder CNV6761
* 83 Earth Plate CNC9960
Mark No. Description Part No.
Mark NO Description FX-MG8247ZT/ES FX-MG8247ZT/Q1
51 Grille Assy CXC2753 CXC2752
66 Button CAC8627(FM1/2) CAC8622(FM)
69 Button CAC8621(AM) CAC8626(AM/SW)
71 Door CAT2584 CAT2583

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2.3 EXTERIOR(2)(FX-MG8247ZT/UC,FX-MG8747ZT/UC)

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(1) EXTERIOR(2)(FX-MG8247ZT/UC,FX-MG8747ZT/UC) SECTION PARTS LIST
(2) CONTRASTTABLE
FX-MG8247ZT/UC and FX-MG8747ZT/UC are constructed the same except for the following:
Mark No. Description Part No.
1 Screw BMZ30P050FTC
2 Connector CDE6509
3 Connector CDE7717
4 Chassis CNA2329
5 Insulator CNM8838
6 Seal CNM9252
7 Main Unit See Contrast table(2)
8 Screw BMZ30P060FTC
9 Screw(M3x6) CBA1393
10 Connector(CN801) CKM1322
11 Connector(CN473) CKM1350
12 Connector(CN472) CKM1351
13 Plug(CN300) CKS-291
14 Connector(CN301) CKS3568
15 Connector(CN804) CKS4361
16 Connector(CN303) CKS4376
17 86146-48030(ANT1) CKX1057
18 86146-48040(ANT2) CKX1058
19 Holder CND2285
20 Holder CNC6774
21 Terminal(CN800) VNF1084
22 Control Unit CWM9468
23 Terminal(CN703) CKF1064
24 Connector(CN701) CKS3989
25 Connector(CN702) CKS4376
26 Screw BMZ20P020FTC
27 Screw BMZ26P030FTC
28 Screw(M2x2) CBA1250
29 Spring CBH2472
30 Transistor(Q809,811) 2SB1185
31 Chassis Unit CXC2935
32 Spring CBH2473
33 Spring CBH2478
34 Tube CDM1028
35 Chassis CNA2256
36 Holder CNC7477
37 Holder CNC7826
38 Holder CNC8701
39 Insulator CNM5969
40 Sheet CNM5981
41 Sheet CNM6318
42 Cushion CNM7023
43 Screw IMS20P040FTC
44 PCB CNP5516
45 Damper CNV5120
46 Holder CNV5543
47 Cassette Mechanism Module EXK4295
48 Screw IMS26P040FTC
49 Screw BMZ26P050FTC
50 Screw PMB26P060FTC
51 Screw BMZ50P080FTC
52 FM/AM Tuner Unit CWE1543
53 Screw(M5x8) CBA1811
54 86211-33180 CNC9644
55 86212-33180 CNC9645
56 Service Mechanism Unit(G1) CXX1487
Mark No. Description Part No.
Mark NO Description FX-MG8247ZT/UC FX-MG8747ZT/UC
7 Main Unit CWM9273 CWM9274

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2.4 EXTERIOR(2)(FX-MG8247ZT/ES,FX-MG8247ZT/Q1)

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(1) EXTERIOR(2)(FX-MG8247ZT/ES,FX-MG8247ZT/Q1) SECTION PARTS LIST
(2) CONTRASTTABLE
FX-MG8247ZT/ES and FX-MG8247ZT/Q1 are constructed the same except for the following:
Mark No. Description Part No.
1 Screw BMZ30P050FTC
2 Connector CDE6509
3 Connector CDE7717
4 Chassis CNA2329
5 Insulator CNM8838
6 Seal CNM9252
7 Main Unit See Contrast table(2)
8 Screw BMZ30P060FTC
9 Screw(M3x6) CBA1393
10 Connector(CN801) CKM1322
11 Connector(CN473) CKM1350
12 Connector(CN472) CKM1351
13 Plug(CN300) CKS-291
14 Connector(CN301) CKS3568
15 Connector(CN804) CKS4361
16 Connector(CN303) CKS4376
17 86146-48030(ANT1) CKX1057
18 86146-48040(ANT2) CKX1058
19 Holder CND2285
20 Holder CNC6122
21 Terminal(CN800) VNF1084
22 Control Unit CWM9468
23 Terminal(CN703) CKF1064
24 Connector(CN701) CKS3989
25 Connector(CN702) CKS4376
26 Screw BMZ20P020FTC
27 Screw BMZ26P030FTC
28 Screw(M2x2) CBA1250
29 Spring CBH2472
30 Transistor(Q809,811) 2SB1185
31 Chassis Unit CXC2935
32 Spring CBH2473
33 Spring CBH2478
34 Tube CDM1028
35 Chassis CNA2256
36 Holder CNC7477
37 Holder CNC7826
38 Holder CNC8701
39 Insulator CNM5969
40 Sheet CNM5981
41 Sheet CNM6318
42 Cushion CNM7023
43 Screw IMS20P040FTC
44 PCB CNP5516
45 Damper CNV5120
46 Holder CNV5543
47 Cassette Mechanism Module EXK4295
48 Screw IMS26P040FTC
49 Screw BMZ26P050FTC
50 Screw PMB26P060FTC
51 Screw BMZ50P080FTC
52 FM/AM Tuner Unit See Contrast table(2)
53 Screw(M5x8) CBA1811
54 86211-33180 CNC9644
55 86212-33180 CNC9645
56 Service Mechanism Unit(G1) CXX1487
Mark No. Description Part No.
Mark NO Description FX-MG8247ZT/ES FX-MG8247ZT/Q1
7 Main Unit CWM9276 CWM9275
52 FM/AM Tuner Unit CWE1546 CWE1544

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2.5 SERVICE MECHANISM UNIT(G1)
D
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K
L
I
H
M
G
J
:GEM1024
:GEM1035
1
2
1
2
1
2
11
1
1
1
1
1
1
2
11
1
1
1
2
1
1
1
2
2
2
2
2
1
2
22
2
1
20

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SERVICE MECHANISM UNIT(G1) SECTION PARTS LIST
Mark No. Description Part No.
1-9 •••••
10 CD Core Unit(Servo Unit) CWX2421
11 Connector(CN101) CKS2764
12 Connector(CN301) CKS3966
13 Connector(CN201) CKS3991
14 CD Core Unit(STS Unit) CWX2422
15 Connector(CN701) CKS3989
16 Connector(CN801) CKS3989
17 Connector(CN802) CKS4054
18 Screw(M2x2.5) CBA1651
19 Screw(M2x2.5) CBA1041
20 Screw(M2x2.5) CBA1076
21 Screw(M2x2) CBA1250
22 Washer CBA1529
23 Screw(M2x2.5) CBA1452
24 Screw(M2x1.9) CBA1453
25 Screw(M2x2) CBA1479
26 Washer CBF1037
27 Washer CBF1038
28 Washer CBF1039
29 Washer CBF1064
30 Spring CBH2007
31 Spring CBH2271
32 Spring CBH2274
33 Spring CBH2014
34 Spring CBH2015
35 Spring CBH2016
36 Spring CBH2017
37 Spring CBH2290
38 Spring CBH2366
39 Spring CBH2064
40 Spring CBH2195
41 Spring CBH2196
42 Spring CBH2224
43 Spring CBH2250
44 Screw(M2x3) CBA1082
45 Roller CLA3154
46 Roller CLA3157
47 Roller CLA3159
48 Roller CLA3160
49 Shaft CLA3179
50 Spacer CLA3194
51 Roller CLA3248
52 Bush CLA3353
* 53 Shaft CLA3469
54 Shaft CLA3693
55 Steer CNC7215
56 Steer CNC7216
57 Cam CNC8774
58 Holder CNC7235
59 Gear CNC7236
60 Gear CNC9512
61 Lever CNC7243
62 Lever CNC7244
63 Lever CNC7245
64 Lever Unit CXB4944
65 Cover CNC7441
66 Holder Unit CXB4946
67 Lever CNC9088
68 Gear CNC8140
69 Sheet CNM6840
70 PCB CNP5764
71 PCB CNP6010
72 Gear CNR1479
73 Gear CNR1481
74 Gear CNR1495
75 Gear CNR1501
76 Gear CNR1502
77 Gear CNR1540
78 Gear CNR1541
79 Belt CNT1080
80 Worm Gear CNV6807
81 Gear CNV5047
82 Gear CNV5048
83 Gear CNV5049
84 Holder CNV5056
85 Pulley CNV5058
86 Arm CNV5061
87 Spacer CNV5066
88 Arm CNV5189
89 Cover CNV5207
90 Cover CNV6808
91 Cover CNV5425
92 Lever CNV5427
93 Arm CNV5491
94 Gear CNV5519
95 Holder CNV5648
* 96 Composite PCB CNX3558
* 97 Composite PCB CNX3502
98 Chassis Unit CXB5940
99 Frame Unit CXB7801
100 Lever Unit CXB6026
101 Arm Unit CXB7533
102 Lever Unit CXB2708
103 Lever Unit CXB2709
104 Lever Unit CXB4949
105 Arm Unit CXB2712
106 Lever Unit CXB9086
Mark No. Description Part No.

FX-MG8247ZT/UC
16
1234
1234
C
D
F
A
B
E
107 Lever Unit CXB2714
108 Carriage Mechanism Unit(G1T) CXB4941
109 Screw(M2x2.2) CBA1604
110 Screw(M2x2) CBA1250
111 Screw(M2x3.8) CBA1362
112 Screw(M2x2.4) CBA1471
113 Washer CBF1038
114 Spring CBH2008
115 Spring CBH2009
116 Spring CBH2010
117 Spring CBL1335
118 Roller CLA3913
* 119 Bracket CNC7228
120 Guide Unit CXB4417
121 Cover CNC9504
122 Sheet CNM6414
123 Sheet CNM5378
124 Washer CBE1053
125 Sheet CNM5827
126 PCB CNP6164
127 Ball CNR1189
128 Bearing CNR1423
129 Belt CNT1079
130 Holder CNV5037
131 Guide CNV5040
132 Clamper CNV5042
133 Rack CNV5111
134 Arm CNV5579
135 Holder CNV5759
136 Chassis Unit CXB8450
137 Arm Unit CXB2705
138 Motor Unit(M4 CARRIAGE) CXC1389
139 Screw Unit CXB3179
140 Lever Unit CXB4450
141 Bracket CNC8584
142 Spacer CNM6345
143 Motor(M5 SPINDLE) CXM1279
144 Screw JFZ14P020FZK
145 Washer YE15FTC
146 Arm Unit CXB6052
147 Arm Unit CXB6053
148 Tray Assy CXB7656
149 Spring CBH2269
150 Sheet CNM7109
151 Cam Motor Assy CXB7809
152 •••••
* 153 Bracket Unit CXB5201
* 154 Motor Unit(M1 Cam Gear) CXC1395
* 155 Motor Unit(M3 ELV) CXC1386
156 Screw JFZ20P025FTC
Mark No. Description Part No.
157 Loading Arm L Assy CXC1950
158 Load Arm L Assy(Service) CXX1469
159 Screw(M2x1.9) CBA1453
160 Washer CBF1038
161 Load Arm R Assy(Service) CXX1486
162 Washer CBF1074
163 Spring CBH2690
* 164 Arm CNC7241
* 165 Arm CXC1948
166 Holder CBL1508
167 Belt CNT1079
168 Holder CNV5055
169 Pulley CNV5057
170 Roller CNV6209
171 Guide CNV5125
* 172 Bracket Unit CXB5937
173 Roller Gear Unit CXB3176
* 174 Motor Unit(M2 LOAD) CXC1388
175 Screw JFZ14P020FZK
176 Loading Arm R Assy CXC1951
177 Screw(M2x1.9) CBA1453
178 Washer CBF1074
179 Spring CBH2690
* 180 Arm CNC7242
* 181 Arm CXC1949
182 Screw JFZ20P014FTC
183 Roller CNV6209
184 Roller Gear Unit CXB3176
185 Guide CNV5126
186 Switch(S885 MAX) CSN1052
187 LED(D883) CL205IRXTU
188 Photo-transistor(Q881) CPT230SCTD
189 LED(D891,892) CL205IRXTU
190 Switch(S887 CLAMP) CSN1051
191 Switch(S886 ELV HOME) CSN1052
192 Bracket Unit CXB6086
193 Photo-transistor(Q851,852) CPT231SCTD
194 Resistor(R856) RS1/8S911J
195 Resistor(R857) RS1/8S821J
196 Photo-interrupter(Q1) RPI-221
197 Screw(M2x1.4) CBA1687
198 Pickup Unit(P8)(Service) CXX1313
199 Spring CBL1467
Mark No. Description Part No.

FX-MG8247ZT/UC 17
5678
5678
C
D
F
A
B
E

FX-MG8247ZT/UC
18
1234
1234
C
D
F
A
B
E
2.6 CASSETTE MECHANISM MODULE
N
O
For grease application, refer to the service manual for CX-1011 (CRT2406).

FX-MG8247ZT/UC 19
5678
5678
C
D
F
A
B
E
CASSETTE MECHANISM MODULE SECTION PARTS LIST
Mark No. Description Part No.
1 Screw BSZ20P040FTC
2 Washer CBF1037
3 Washer CBG1003
4 Screw EBA1028
5 Screw BMZ20P022FTC
6 Spring EBH1653
7 Spring EBH1642
8 Spring EBH1641
9 Spring EBH1626
10 Spring EBH1627
11 Spring EBH1648
12 Cord EDD1024
13 Photo-reflector(Q101) EGN1004
14 Arm ENC1526
15 Lever Unit EXA1610
16 Lever ENC1543
17 Arm ENC1532
18 Frame ENC1533
19 Holder ENC1547
20 Gear ENC1535
21 Arm ENC1550
22 Roller ENR1040
23 Belt ENT1027
24 Collar ENV1508
25 Arm ENV1539
26 Arm ENV1540
27 Gear ENV1569
28 Gear ENV1547
29 Gear ENR1044
30 Worm Wheel ENV1559
31 Lever ENV1551
32 Flywheel ENV1607
33 Gathering PCB ENX1073
34 Switch(S101,S102,S103) ESG1007
35 Deck Unit EWM1043
36 Plug(CN251) CKS3540
37 Gathering PCB ENX1076
38 Motor Unit(M1) EXA1618
39 Motor EXM1035
40 Head Assy(HD1) EXA1594
41 Arm ENC1537
42 Screw EBA1031
43 Bracket ENC1559
44 Chassis Unit EXA1636
45 Pinch Holder Unit EXA1608
46 Pinch Roller ENV1518
47 Pinch Holder Unit EXA1607
48 Pinch Roller ENV1518
49 Reel Unit EXA1625
50 Head Base Unit EXA1611
51 Lever Unit EXA1587
52 Gear Unit EXA1596
53 Motor Unit(M2) EXM1042
54 Washer HBF-179
55 Spring EBH1537
56 Worm Gear ENV1564
57 Spring EBH1672
58 Lever ENC1548
59 Washer YE15FUC
60 Tube ENM1039
61 Spring EBH1645
62 Spring EBH1545
63 Sensor Unit EWM1041
Mark No. Description Part No.

FX-MG8247ZT/UC
20
1234
1234
C
D
F
A
B
E
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM(FX-MG8247ZT/UC,FX-MG8747ZT/UC)
ELHOME
CLAMP
LOAD
POWER
CONT
EMPH
ELVSNS
LOADSW
DOORSW
MODESW
CG1
CG2
G15V
ELV1
ELV2
LO1
LO2
PH3
PH2
PH1
FM+B
PICKUP UNIT(P8)(SERVICE)
MOTOR PCB(B)
MOTOR PCB(A)
CD CORE UNIT(SERVO UNIT)
PCB UNIT(D)
PCB UNIT(A)
PCB UNIT(C) PCB UNIT(E)
PCB UNIT(B)
LOAD MOTOR PCB
CD CORE UNIT(STS UNIT)
HOLOGRAM
UNIT
FOCUS ACT
TRACKING ACT
MD
LD+
LD-
LD
MD
FO+
TO+
16
17
V5
Q101
Q102
PD
LD
CN101
IC 101
UPC2572GS
RF AMP
IC 201
UPD63702AGF
DIGITAL SERVO
PROCESSOR
DIGITAL SIGNAL
PROCESSOR
µ-COMPUTER
INTERFACE
35 69 EFM
CD 4CH DRIVER
IC 301
BA5986FM
14
11
16
15
22
BVD
V5 MUTE
9
MD/SD/TD/FD
74 10 11
VR2
XTAL XTAL
X201
5V
VD
CONT
CN201 CN801
5V
VD
CN301
WDCK
RFCK
RAOV
LRCK
SCKO
DOUT
MCK
IC 501
CXD2511R
SHOCKPROOF
CONTROLLER
BCK
DATA
LRCK
XTLI 39 512
IC 601
AK4321VF
8fs DF D/A LPF CN701 CN701
6
18
DEMO
PD
IC 502
MSM514400DP-60TS
4M DRAM
VD VD VD
VD
LCH
WDSL/CHMO/CHMI XWRE/XRDE/XQOK
XWIH/XEMP/ADRMON/CHDT
V+5V IC 701
BA05SFP
5V REGULATOR
VM
VD
POWER
CONT
EMPH
4
2
1
XAO/XSTB/XSO/XSI/XSCK/XRST/SCONT
ELVSNS
LOADSW
DOORSW
MODESW
S801
S802
S803
MOTOR DRIVER
IC 802
LB1836M
2
6
3
5
ELVSNS
MOTOR DRIVER
LB1836M
IC 801
2
6
13
9
5
3
12
10
CG1
CG2
CG-
CG+
EL-
EL+ ELV1
ELV2
LO1
LO2
MAXSW
PH2
PH1
PVD
LO-
LO+
PVD PVD
Q801
VD
Q802 LOAD
ELHOME
CLAMP
CLAMP
ELHOME
CN802
CN251 CN301
M
BCL
SPINDLE
MOTOR
CARRIAGE
MOTOR
HOME
SWITCH
EC
VM
VCC
ST/SR
GND
HOME
M
LOADING
MOTOR
M
CAMGEAR
MOTOR
M
ELEVATION
MOTOR
Q851 Q852
D891 D892
PH1
PVD
Q881
D883 PH2
S883
MAX
SWITCH
PH1
PVD
PH1
PH2
MAXSW
LD MOTOR-
LD MOTOR+
MAXSW
PH2
PH1
PVD
ELV HOME
S886
S887
CLAMP
ELEVATION
SENSE
V+5V
5
14
15
4
3
1
2
3
4
8
5
6
7
10
11
11
1
1
2
3
4
1
2
4
1
2
1
1
2
3
5
6
3
4
2
1
5
6
3
4
2
1
5
7
3
4
2
1
7
5
9
8
10
11
10 2
11 1
19
28
29
30
19
28
29
30
45
44
46
42
8
9
43
42
35
39
10
1
50
49
48
6
7
11
4
5
2
3
47
46
45
12
44
43
9
16 56
13
27
53
26
79
17
2
18
62
61
75
60
59
58
57
78
77
76
55
6
5
72
69
12
41
50
1
2
3
45
44
40
47
46
49
48
4
5
6
39
7
8
36
35
37
32
33
39
41
41
43
48
50
BU
Lch TL
DECK UNIT
LOAD CD LOAD
CONT
EMPH
POWER
X701
VDCONT
VDD
Q202
20
3
4
FM/AM TUNER UNIT
MAIN UNIT
25
26
FM FRONT END
Q3
Q201 Q202
AM RF
FM/AM 1ST IF 10.7MHz
T31 Q31 CF51
910
32 36
14
19
2
47 1 191715
6
18
9
7
29 28 7 40433138
34
6
41
23 25 16 18
CF232
CF52 CF53 T51
FM
OSC
AM
OSC
FMTV AMTV AMIFC VCO SEEK
IC 201
PM2007A
FMSL
AMSL
FMSD
TUL
16
9
25
5
4
37 38
X201
19 20 15 17 12 23 2
43 45 27
IC 2
PA4024A
IC 1
PA4026A
AM+B
Q701
8R5V
VDD
1421
SENSOR UNIT
29
28
40
XOUT
bsen
EREF
ELVSNS
VDCONT
POWER
cdmute
RESET
reset
XIN
adena
VREF
PD5715B
IC 701
ANT2
SUB
ANTENNA
bsen
CDL
VDIN
PLL CONTROLLER
D
22 1
419
518
617
716
18 5
10 13
11 12
15 8
19 4
DCLOSE
15
25
1
CD9V
29
FMB AMB
14
ANT1
MAIN
ANTENNA
IC 501
LA1061M
5
6
Q501
DIVERSITY
COMP
IC 252
PM4006B
RBDS DECODER
COMP
COMP
IC 553
HA12181FP
AM NOISE CANCELER
Q403
Q405(1/2)
Q401 Q402
Q405(2/2)
CONTROL UNIT
CN702 CN303
SUB
MAIN
1
NIN
FMSD
13
FMVCO
AMVCO
AMIFC
AMTV
FMTV
LOCL
seek
10
30
AMDET
39
20
Q503 FMSD
FMMUT
AMMUT
modesw
loadsw
doorsw
CG1
CG2
ELV1
ELV2
LO1
LO2
PH3
PH2
PH1
elhome
clamp
LOAD
CONTROLLER
CD
AB
D E
F
G
H
I
J
K
L
M
N
O
P
19
28
29
30
19
28
29
30
28
SW2
CN252
11
8
Q551
X251
12
11
CDMUTE
DCLOSE
CDL
Lch
B.U
MTL
LOAD
5
1
4
2
1
3
4
11
20
8
IC251
HA12216F
IC351
PA2020A
DOLBY B NR
MECHANISM
DRIVER
CN254
CN255
CN253
6
19
FWD
L-ch
REV
L-ch
39
32
33
18 19
315 6
8710
CN256 315 6
S1
LOAD
S2
MODE
EGN1
REEL
SENSE
M
M
M2
SUB
MOTOR
M1
MAIN
MOTOR
5
2
1
S3
70µs
4
15
4