Pioneer XRMR-7 Service manual

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STEREO CD / CD-R RECEIVER

XR-MR7

THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Type

KU/CA AC120V
MY AC220-230V

Model

XR-MR7

Power Requirement Remarks

ORDER NO.

RRV2250

¶ This product is a system(s) component.

Be sure to connect it to the prescribed system component(s), otherwise damage may result.

Component Model Service manual Remarks

STEREO CD/CD-R RECEIVER XR-MR7 RRV2250 This manual.
SPEAKER SYSTEM S-MR7 RRV2248

FOR U.S. MODELS

NECESSARY INFORMATION FOR DHHS
RULES MARKED ON THE REAR BASE AND ON
THE TOP OF CD MECHANISM AS BELOW.

DANGER – LASER RADIA TION WHEN OPEN.
AVOID DIRECT EXPOSURE TO BEAM.

CONTENTS

1. SAFETY INFORMATION

2. EXPLODED VIEWS AND PARTS LIST

.......................................

.................

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM..14

4. PCB CONNECTION DIAGRAM

5. PCB PARTS LIST

6. ADJUSTMENT

................................................

.....................................................

...........................

50
71
81

2
4

7. GENERAL INFORMATION

7.1 DIAGNOSIS

...................................................

7.1.1 DISASSEMBLY

7.1.2 SEQUNCE AFTER THE POWER ON

7.2 PARTS

7.2.1 IC

7.2.2 DISPLAY

.........................................................

...........................................................

................................................

8. PANEL FACILITIES AND SPECIFICATIONS

..................................

........................................

......

.....

91
91
91

96
100
100
103
104

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 ELECTRONIC (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 1999

T – ZZR DEC. 1999 Printed in Japan

XR-MR7

1. SAFETY INFORMATION

This service manual is intended for qualified service technicians ; it is not meant for the casual do-it­yourselfer. 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.

WARNING
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause
cancer, birth defects or other reproductive harm.

Health & Safety Code Section 25249.6 – Proposition 65

NOTICE
(FOR CANADIAN MODEL ONLY)
Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must
be of identical designation.

REMARQUE
(POUR MODÈLE CANADIEN SEULEMENT)
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces
de remplacement doivent avoir la même désignation.

(FOR USA MODEL ONLY)

1. SAFETY PRECAUTIONS

The following check should be performed for the
continued protection of the customer and service
technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
such as Simpson Model 229-2 or equivalent between the
earth ground and all exposed metal parts of the appliance
(input/output terminals, screwheads, metal overlays, control
shaft, etc.). Plug the AC line cord of the appliance directly
into a 120V AC 60Hz outlet and turn the AC power switch
on. Any current measured must not exceed 0.5mA.

Reading should
not be above

0.5mA

Earth
ground

Device
under
test

Also test with
plug reversed
(Using AC adapter
plug as required)

Leakage
current
tester

Test all
exposed metal
surfaces

ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL
SHOCK HAZARD AND MUST BE CORRECTED BEFORE
RETURNING THE APPLIANCE TO THE CUSTOMER.

2. PRODUCT SAFETY NOTICE

Many electrical and mechanical parts in the appliance
have special safety related characteristics. These are
often not evident from visual inspection nor the protection
afforded by them necessarily can be obtained by using
replacement components rated for voltage, wattage, etc.
Replacement parts which have these special safety
characteristics are identified in this Service Manual.
Electrical components having such features are identified
by marking with a
in this Service Manual.
The use of a substitute replacement component which does
not have the same safety characteristics as the PIONEER
recommended replacement one, shown in the parts list in
this Service Manual, may create shock, fire, or other hazards.
Product Safety is continuously under review and new
instructions are issued from time to time. For the latest
information, always consult the current PIONEER Service
Manual. A subscription to, or additional copies of, PIONEER
Service Manual may be obtained at a nominal charge from
PIONEER.

on the schematics and on the parts list

AC Leakage Test

2

XR-MR7

THIS PIONEER APPARATUS CONTAINS
LASER OF CLASS ΙΙΙ b.
SERVICING OPERATION OF THE APPARATUS
SHOULD BE DONE BY A SPECIALLY
INSTRUTED PERSON.

LABEL CHECK

MY Type

IMPORTANT

LASER DIODE CHARACTERISTICS
MAXIMUM OUTPUT POWER: 23 mW
WAVELENGTH: 778 – 787 nm

MY Type

VRW-328

KU/CA Type

Printed on Rear Panel

USYNLIG LASERSTRÅLING VED ÅBNING NÅR SIKKERHED SAF­BRYDERE ER UDE AF FUNKTION.
UNDGÅ UDSÆTTELSE FOR STRÅLING

UNSICHTBARE LASER-STRAHLUNG TRITT AUS, WENN DECKEL
(ODER KLAPPE) GEÖFFNET IST! NICHT DEM STRAHL AUSSETZEN!

ADVARSEL

VORSICHT!

VRW1094

MY Type

Additional Laser Caution

1. Laser Interlock Mechanism
The position of the switch (S601) on the SERVO
MECHANISM Assy for detecting loading state is detected
by the system microprocessor, and the design prevents
laser diode oscillation when the switch (S601) is not on
CLMP terminal side (CLMP signal is OFF or high level.).
Thus, the interlock will no longer function if the switch
(S601) is deliberately set to CLMP terminal side (low
level).
The interlock also does not function in the test mode ∗.
Laser diode oscillation will continue, if pin 1 of M51593FP
(IC101) on the PRE-AMP BOARD ASSY mounted on the
CD-R PICKUP is connected to GND, or pin 19 is
connected to low level (ON), or else the terminals of Q101
are shorted to each other (fault condition).

2. When the cover is opened with the servo mechanism
block removed and turned over, close viewing of the
objective lens with the naked eye will cause exposure to a
Class 1 laser beam.

∗ Refer to page 84.

3

XR-MR7

2. EXPLODED VIEWS AND PARTS LIST

NOTES:• Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.

The mark found on some component parts indicates the importance of the safety factor of the part.

•

Therefore, when replacing, be sure to use parts of identical designation.
Screws adjacent to mark on the product are used for disassembly.

•

2.1 PACKING

1

2

14
15

MY:Only

16

17

3

V

K

O

A

L

R
A
O
K

E

4

S

DISC DISC DISC

F

S

C
L
E
E

P

P
.B

POWER

C

A

L

S

E

S

A

R
D
IS
P

P
L
A

G
Y

M
A
U
X

R
E
P
E
A
T

R

A
N
D
O
M

S
T
A

T

REMOTE CONTROL UNIT CU-XR025

IO
N

M
O

N

O
B
A
N
D

12

5

6

13

(1) PACKING PARTS LIST

Mark No. Description Part No.

11

7

8

12

9 (1/2)

9(2/2)

10

1 Power Cord See Contrast table (2)

2 FM Antenna See Contrast table (2)
3 AM Loop Antenna ATB7009
4 Remote Control Unit AXD7241

(CU-XR059)

5 Battery Cover AZA7378

NSP 6 Dry Cell Battery (R6P, AA) VEM-013

7 Packing Sheet AHG7003
8 Front Pad AHA7281
9 Rear Pad LR AHA7282

10 Packing Case See Contrast table (2)

NSP 11 Warranty Card See Contrast table (2)

12 Polyethylene Bag Z21-038

(0.03 x 230 x 340)

13 Operating Instructions See Contrast table (2)

(English)

14 Operating Instructions See Contrast table (2)

(English/French)

15 Operating Instructions See Contrast table (2)

(German/Italian)

16 Operating Instructions See Contrast table (2)

(Dutch/Swedish)

17 Operating Instructions See Contrast table (2)

(2) CONTRAST TABLE

(Portuguese/Spanish)

XR-MR7/MY and /KU/CA are constructed the same except for the following:

Mark

No.

Symbol and Description

MY type KU/CA type

1 Power Cord ADG1127 ADG7021
2 FM Antenna ADH7005 ADH7004

10 Packing Case AHD7849 AHD7848

NSP 11 Warranty Card ARY7022 ARY7033

13 Operating Instructions (E) Not used ARB7213
14 Operating Instructions (E/F) ARE7238 Not used

15 Operating Instructions (G/I) ARE7239 Not used
16 Operating Instructions (D/S) ARC7290 Not used

17 Operating Instructions (P/Sp) ARC7291 Not used

4

Part No.

Remarks

A

D

D

B

C

A

R

R

M

K

I

S

G

H

G

F

E

O

P

Q

E

H

F

J

K

L

M

N

N

B

Q

P

O

S

L

I

C

J

74

71

MY Type
Only

MY Type
Only

44

3

4

61

1

41

42
29

39

37

20

52

52

52

52

52

52

52

53

53

53

51

51

51

51

51

29

51

51

67

76

43

45

48

45

45

25

26

47

5

9

38

38

10

6

7

49

66

65

70

69

77

8

63

64

31

27

28

37

60

60

15

50

73

51

19

52

52

53

75

55

53

52

2

30

13

13

13

13

36

33

21

35

12

17

21

18

34

14

16

52

51

22

29

23

24

32

51

40

51

58

59

57

65

58

59

56

62

Refer to "2.6 3CD MICROCHANGER MECHA "

Refer to "2.3 FRONT PANEL SECTION"

Refer to "2.4 CD-R CORE ASSY (1/2)

2.5 CD-R CORE ASSY (2/2) "

11

2.2 EXTERIOR SECTION

XR-MR7

5

XR-MR7

(1) EXTERIOR SECTION PARTS LIST

Mark No. Description Part No. Mark No. Description Part No.

NSP 2 CD-R CORE ASSY PXA1625

1 FM/AM TUNER Module See Contrast table (2)
3 AF ASSY See Contrast table (2)

4 AMP ASSY See Contrast table (2)
5 REG ASSY AWU7468

6 SECONDARY ASSY AWU7451
7 PRIMARY ASSY See Contrast table (2)
8 SUBTRANS ASSY See Contrast table (2)
9 AC IN/OUT ASSY See Contrast table (2)

10 Power Transformer See Contrast table (2)
11 Fuse (FU 2 : ) See Contrast table (2)

12 6P Connector Assy ADE7055
13 Screw BBZ30P080FCC

NSP 14 3CD MICROCHANGER MECH AXA7077

15 27P FFC/30V ADD7203

(DIS CN5601 ↔ AF CN5501)

16 16P FFC/60V ADD7178

(AF CN1101 ↔ 3CD MECHA)

17 21P FFC/60V ADD7200

(AF CN7701 ↔ CDR CN501)

18 15P FFC/60V ADD7201

(AF CN7702 ↔ CDR CN301)

19 9P FFC/60V ADD7205

(AF CN3201 ↔ FRO. CN5403)

20 Fuse (FU 1 : ) See Contrast table (2)

21 Screw BBT30P080FCC
22 2mm Connector ASSY 6P ADE7051

(AF CN1301 ↔ 3CD CN8002)

23 Connector ASSY 11P PG11KK-G20

(AF CN1302 ↔ 3CD CN8003)
NSP 24 Mini Clamper VEC1597
NSP 25 Heat Sink ANH7115

26 Heat Plate ANG7266

NSP 27 Chassis ANA7101

28 Leg Assy AEC7248
29 Pla Rivet DEC1704
30 Tray Panel (CD-R) AAK7712

NSP 31 PCB Holder PNW2029

32 Flexible Holder AEC7252
33 CD-R CORE ASSY PYY1273
34 Radiator Sheet PEB1305

NSP 35 PCB Spacer AEC1371

NSP 36 Mecha Base PNB1613

37 PCB Spacer (3x12) AEC1372
38 Screw IBZ40P060FCC
39 Shield Case ANG7272
40 Side Stay ANG7261

41 CD Stay ANG7259
42 CD Sheet AEC7253
43 Rivet (PLASTIC: 3x4.5) RBM–003
44 Tapping Card Spacer AEC7098
45 Card Spacer AEC7214

NSP 46 PCB Spacer AEC7254

47 Rear Panel R See Contrast table (2)
48 Rear Cover AMR7310
49 Bonnet Case R AZN7824
50 Tray Panel (CD) See Contrast table (2)

51 Screw BBZ30P060FCC
52 Screw BBZ30P080FNI
53 Screw BBZ30P080FZK
54 Screw BPZ30P060FMC
55 Terminal Screw AKE- 031

56 Supporter Plate L ANG7290
57 Supporter Plate R ANG7291
58 Screw IPZ30P060FMC
59 Screw PBZ30P120FMC
60 Spacer R AEB7189

61 Tapping Card Spacer AEC7262
62 Harness Lifter DEC1262
63 Fuse Label See Contrast table (2)
64 Fuse Label See Contrast table (2)
65 65 Label See Contrast table (2)

66 Fuse Caution Label See Contrast table (2)

NSP 67 Laser Caution Label See Contrast table (2)

68 Disc Caution Label See Contrast table (2)
69 Caution Label HE See Contrast table (2)
70 Caution Label See Contrast table (2)

71 Ceramic Capacitor See Contrast table (2)
72 Cord Clamper RNH-184

NSP 73 Getter See Contrast table (2)

74 Earth Plate See Contrast table (2)
75 Speaker Caution Label ARW7080

76 LEGATO ASSY See Contrast table (2)
77 Caution Label (F) See Contrast table (2)

6

(2) CONTRAST TABLE

XR-MR7/MY and /KU/CA are constructed the same except for the following:

Mark

No.

1 FM/AM TUNER Module AXQ7068 AXQ7065
3 AF ASSY AWU7460 AWU7448
4 AMP ASSY AWU7464 AWU7555
7 PRIMARY ASSY AWU7469 AWU7457
8 SUBTRANS ASSY AWU7471 AWU7459

9 AC IN/OUT ASSY AWU7470 AWU7458
10 Power Transformer ATS7271 ATS7272
11 Fuse (FU 2 : 4A/125V) Not used REK1082
11 Fuse (FU 2 : T2AL250V) AEK1057 Not used
20 Fuse (FU 1 : 5A/125V) Not used REK1083

20 Fuse (FU 1 : T2.5AL250V) AEK1058 Not used
47 Rear Panel R ANC7880 ANC7879
50 Tray Panel (CD) AAK7746 AAK7715

NSP 63 Fuse Label AAX1581 AAX1419
NSP 64 Fuse Label AAX1580 AAX1194

Symbol and Description

MY type KU/CA type

Part No.

XR-MR7

Remarks

65 65 Label Not used ARW7050

NSP 67 Laser Caution Label Not used PRW1516

66 Fuse Caution Label Not used ARW7081
68 Disc Caution Label Not used PRW1532

69 Caution Label HE PRW1233 Not used
70 Caution Label VRW1094 Not used

71 Ceramic Capacitor CKPUYB102K50 Not used
73 Getter ARW7086 ARW7077
74 Earth Plate XNG3015 Not used
76 LEGATO ASSY AWU7525 Not used

77 Caution Label (F) VRW–328 Not used

7

XR-MR7

2.3 FRONT PANEL SECTION

5

27

6

23

1

PCB Cutting
Parts

21

B

19(4/4)

27

11

16 (1/2)

29

A

2

14

13(1/2)

17

A

12(2/2)

27

27

27

5

35

22

12(1/2)

27

3

27

27

31

27

20

30

15

25

33

24

13(2/2)

36

18

19(1/4)

27

B

16 (2/2)

Front Panel Cutting Parts

27

4

19(3/4)

19(2/4)

9

8

26

34

7

28

32

10

8

(1) FRONT PANEL SECTION PARTS LIST

Mark No. Description Part No.

1 H.P ASSY AWU7453
2 DISPLAY ASSY AWU7461
3 SW JOG ASSY AWU7466
4 FRONT LINE ASSY See Contrast table (2)
5 21P FFC/60V ADD7202

6 27P FFC/60V ADD7203
7 Rubber Sheet AEB1111
8 VOL Ring R AAB7219
9 Button RE AAD7559

10 Function Lens PNW2796

XR-MR7

NSP 11 Indicate Lens AAK7085

NSP 22 Button RF AAD7560

NSP 26 Front Panel RK AMB7690

NSP 35 Button Lens MRF AAK7691

12 Button RD AAD7554
13 Button RB AAD7553
14 Button Lens MRB AAK7690
15 Button RA AAD7557

16 Button RC AAD7558
17 LED Lens PNW2745
18 Receiv Lens AAK7586
19 Button RG ASSY AXG7087
20 Button RF ASSY AXG7086

21 FL Plate AAK7718
23 Display Window R AAK7710

24 VOL Knob R AAB7218
25 Jog Knob R AAB7217

27 Screw BPZ30P080FZK
28 Front Panel RK ASSY AXG7091
29 Shield Sheet R AED7041
30 CDR SW ASSY AWU7517

31 5P FFC/60V ADD7204
32 CDR LED ASSY AWU7467
33 Knob R AAB7216
34 Cap AAK7713

(2) CONTRAST TABLE

XR-MR7/MY and /KU/CA are constructed the same except for the following:

Mark

No.

Symbol and Description

MY type KU/CA type

4 FRONT LINE ASSY AWU7450 AWU7438

Part No.

Remarks

9

XR-MR7

2.4 CD-R CORE ASSY (1/2)

• Bottom View

A

18

13

1

20

9

12

7

26

25

Refer to
"2.5 CD-R CORE ASSY (2/2)"

23
31

24

19

5

28

26

29

5

30

5

6

21

4

17

8

CD-R CORE ASSY(1/2) PARTS LIST

•

3

A

2

11

16

15

27

22

14

10

Mark No. Description Part No. Mark No. Description Part No.

NSP 1 LOADING A Assy PWZ3760
NSP 2 LOADING B Assy PWZ3761

3 Connector Assy PG02KK-E15

(LOADING B CN551 ↔ LOADING A CN502)

4 DC Motor (LOADING) PXM1027
5 Screw DBA1006

6 Motor Pulley PNW1634
7 Screw VBA1055
8 Tray Stopper Spring VBH1277
9 Rubber Belt VEB1260

10 Loading Base VNL1844
11 Tray VNL1731
12 Gear Pulley VNL1733
13 Loading Gear VNL1734
14 Drive Gear VNL1735

15 Drive Cam VNL1736
16 Lock Plate VNL1820

NSP 28 Earth Lead Unit PDF1200

17 Tray Stopper VNL1739
18 Connector Assy PF03KK-E37

(LOADING A CN501 ↔ CD-R CORE CN451)
19 Screw BBZ26P040FMC
20 Screw Z39-019

21 Loading Motor Assy VXX2505
22 Binder PEC-107
23 Clamper Plate VNE2068
24 Bridge VNE2069
25 Clamper VNL1738

26 Screw IPZ26P060FMC
27 32P Flexible Cable / 30V PDD1195

(CD-R Pickup ↔ CD-R CORE CN101)
29 Tray Holder PNM1341

30 Stopper DNH2076
31 Spacer PNM1334

10

2.5 CD-R CORE ASSY (2/2)

25

17

22

1

20

15

23

9

23

3

7

2

26

4

10

21

16

XR-MR7

CD-R CORE ASSY(2/2) PARTS LIST

•

19

11

18

5

Mark No. Description Part No.

NSP 1 SERVO MECHANISM Assy PWZ3759

2 DC Motor Assy (SPINDLE) PEA1235

NSP 3 DC Motor (CARRIAGE) PXM1042

4 Float Rubber A AEB7063
5 Float Rubber B AEB7066

NSP 6 Rack Spring DBH1285
NSP 7 Reflection Sheet PNM1325

8 Servo Base PNW2853
9 Pinion Gear PNW2854

10 Gear A PNW2855
11 Gear B PNW2856

12 Gear C PNW2857
13 Rack PNW2858
14 Rack Stopper PNW2859

NSP 15 Disc Table PNW2860

16 Carriage Base S PNW2874
17 Connector Assy PG09KK-E17

(SERVO MECHANISM CN601↔CD-R CORE CN452)
18 Guide Bar VLL1488
19 Sub Guide Bar VLL1489

NSP 20 Magnet VYM1024

21 CD-R Pickup PEA1351
22 Screw Z39-018
23 Screw PMZ20P030FMC
24 Screw JGZ17P030FMC

• Bottom View

SERVO MECHANISM
ASSY

14

6

13

Carriage Base S

24

22

12

25 Disc Table Assy PEA1349
26 Carriage Motor Assy PEA1350

8

How to Install the Disc Table

Use nippers or other tool to cut the two sections marked A in figure 1 .

1

While supporting the spindle motor shaft with the stopper, put spacer on

2

top of the carriage base, and stick the disc table on top (takes about 9kg
pressure). Take off the spacer.

1

A

Spacer

A

Spacer

Servo Base

2

Spacer setting
Position

Disc table Assy

(Pressure of about 9kg)

Spacer

Spindle
motor

OK NG

Stopper

11mm

2.8mm

Carriage
Base

PCB

11

XR-MR7

2.6 3CD MICROCHANGER MECHANISM

*1 : Floil (PN-397)
*2 : Dyefree (ME-413A)

*2

(No.36 Sub Tray Part)

38

*2

(Gutter)

*2

(Inside Gutter)

*2
(Bottom Gutter)

36

36

36

37

30

29

28

31

*2
(Left Front
Under Gutter)

35

*2

(Whole)

34

42

15

33

41

18

39

40
*1

(Gutter)

14

*1

(Column)

*2
(Bottom Gutter)

19

12

13

17

16

*1

(Boss)

32

*1

(Gutter)

*2

(Gutter)

*1
(Gutter)

11

43

43

*1

(Rail)

8

44

23

*1
(Gutter)

20

27

22

*1

(Inside Rail)

21

26

(Black)

25

(Blue)

4

24

12

9

*1

(Inside Rail)

2

7

3

5

7

6

5

1

10

3CD MICROCHANGER MECHANISM PARTS LIST

•

Mark No. Description Part No.

1 MOTOR UNIT AWU7431
2 LOADING UNIT AWU7432
3 SELECT UNIT AWU7433
4 PICK–UP UNIT KSM213CCM
5 Slider Motor VXM1033

6 Mecha Base ANW7129
7 Motor Pulley PNW1634
8 Lift Spring ABH7173
9 Home Lever ANW7153

10 HL Spring ABH7182
11 Extended Gear A ANW7138

12 Gear A ANW7136
13 Extended Gear B ANW7139
14 Gear B ANW7137
15 Gear Pully ANW7135

16 Select Lever ANW7143
17 EV Camgear ANW7140
18 Belt AEB7159
19 Elevator Base ANW7132
20 Tray Guide ANW7150

XR-MR7

21 TG Stopper ANW7151
22 TG Spring ABH7175
23 Cam Plate ANW7147
24 Lock Lever ANW7148
25 Float Rubber A (Blue) AEB7063

26 Float Rubber B (Black) AEB7066
27 Float Base ANW7130
28 Clamper Holder ANW7152
29 Yoke ANG7257
30 Clamper Magnet AMF7001

31 Clamper SO XNW3007
32 Swing Base ANW7131
33 Main Tray ANW7133
34 Lock Plate ANW7144
35 Lock Plate Spring ABH7174

36 SUB Tray ANW7134
37 Tray Label ARW7070
38 Stopper Arm ANW7145
39 gear Shaft ANW7142
40 Loading Gear ANW7141

41 Elevator ANW7146

NSP 43 MB Spacer AEC7259
NSP 44 MB3 Spacer AEC7263

42 Elevator Cover ANW7149

13

1

23

XR-MR7

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM (1/2)

4

A

AA

AB

(TX)

FM/AM TUNER

Module

3CD MICRO

CHANGER

MECHA.

(AXA7077)

LEGATO

V

ASSY

(AWU7525)

MY : Only

B

LINE IN

TAPE PLAY

TAPE REC

IC1901

(PE8001A)

D/A Converter

6 6

11 11

AF ASSY

I

(CXA2570N)

RF Amp.

(M56788FP)

IC3131

(UPC4570G2)

PHONO EQ

IC1101

IC1301

Driver

1

23 72

43

IC1201

(CXD2587Q)

Servo Decoder

62

7

2

IC3101

(TC9164AF)

SIGNAL

SELECTOR

3

4 5

13

11

10

KU/CA:Only

60

(REC)

(REC)

CD ANALOG OUT

CD DIGITAL OUT

(CD)

(REC)

DIGITAL IN

(OPTICAL)

CN3201

C

CN5403

9

5

9

5

FRONT
LINE
ASSY

O

D

1

IC7301

(PMC1800-1)

A / D BLOCK

15

CD-R CORE

B

ASSY : CN501

N

CDR
LED
ASSY

16

IC7401

(PE8001A)

D / A BLOCK

2

CN5962

CN7701

M

CDR
SW
ASSY

IC7501

(PE5113B)

MODE µCOM

11-13 44-46

CD-R CORE

B

ASSY : CN301

CN5954

CN7702

CN7703

CD-R ASSY : CN901

B

14

1234

5

678

XR-MR7

(REC)

CN5952

TX

53

CD

55

CDR

54 31

LINE

51
49

(REC)

L

Rotary

Encoder

Rotary

Encoder

CD-R

30, 50

IC3151

(BA4558F-HT)

BUFFER

1 3

SW JOG ASSY

S5966

JOG

S5965

VOL

S5969

DVOL

S5970

AVOL

: AUDIO SIGNAL ROUTE

IC3031

(LC75396NE)

Input Selector, SFC, E-VR

GEQ

IC3081

(M62457AFP)

Spectram Analyzer IC

E-VR

34

8

AD

28

CN3102

CN521

SPEAKER

TERMINAL

CDR

CD

AMP

IC5501

(PD5545A)

System Control
Microcomputer

MICOM +5V

CN3001

CN3002

AMP

J

IC3301

(STK407-040B)

Power Amp.

14

24

AMP ASSY

RY3601

7

DC DET.

Overload DET.

CN3101

CN3902

Phones

P

J3901

HP ASSY

Speaker

CN2551

System
Connector
(CT-J7)

CN5502

Flash
Microcomputer
ROM
Write

BZ5501

Buzzer

A

B

C

CN5953

K

Key Input

DISPLAY ASSY

(BU2092F)

LED Driver

V5601

(AAV7073)

FL TUBE (included Driver)

5

IC5801

PRIMARY ASSY

REG ASSY

U

SECONDARY ASSY

S

Power Supply

Block

Power

Transformer

T

SUBTRANS ASSY

Q

ACINOUT ASSY

R

RY11

FU1

CN1

AC OUTLET
MY : Only

AC INLET

D

Standby

Power Supply

Block

Standby

Transformer

15

6

7

8

1

23

XR-MR7

3.2 BLOCK DIAGRAM (2/2 : CD-R)

4

A

Disc (CD, CD-R, CD-RW)

B

PICKUP

PEA1351

CD-R

CN1 CN101

A

10

B

9

C

16

D

15

E

17

F

8

G

14

H

11

FCS+

4

FCS–

1

TRK+

3

TRK–

2

SIGNAL ROUTE

(REC)

: REC SIGNAL (after A/D)

(PB)

(PB)

: PB OUT (before D/A)

(CD)

: DIGITAL CN INPUT

(LI2)

: DIGITAL LINE 2

(DO)

: DIGITAL OUT
: RF SIGNAL ROUTE

CD-R CORE
ASSY

B

RF AMP CIRCUIT

A–D

A

10

B

9
16
15
17

8
14
11

4

1

3

2

A–H

C
D
E
F
G
H

IC181

NJM2137M

6 1

76

73

71 68

RFDC
HF

17.2872MHz

19

IC101

AK8563

RF PROCESSOR

58

11
10
29
46

WRF

FE
TE
RFAC
RFWBL

IC251-IC254

RUNNING OPC

CIRCUIT

BLOCK

RFOPC
AOUT

IC431

PDK041A

STRATEGY

CONTROL IC

CXD2585Q

CD DECODER

RFDC

43

FE

39

TE

41

RFAC

50

IC401

34.5744MHz

4

17.2872MHz

6

CDLRCK

65

CDBCK

67

CDDATA

66

CDTX

64

LD CONTROL

CIRCUIT

SERVO MECHANISM

C

ASSY

PC651

C

NJL5803K-F1

FG

M

DC MOTOR

ASSY

(SPINDLE)

PEA1235

M

CARRIAGE MOTOR

ASSY (SLIDER)

PEA1350

LOADING B

E

ASSY

CN601

9

3
4

1
2

CN452

FG

SPDL

SL

FG

9

FCS+

3

SPDL

4

2

1

SL

FCS–
TRK+
TRK–

SPDL

L

34
35

IC451

32

M56788FP

31

TRK DRIVER

12

FCS DRIVER

13

SLD DRIVER

SPDL DRIVER

9

10

LOADING DRIVER

14
15

TE
HF

RFWBL

29

IC201

---

PA9007A

SERVO AMP IC

38

19

FG

IC351

PDJ014A

ATIP

DECODER IC

32 37
39 40

AD0-AD7
Address

CN551

M

LOADING

MOTOR

ASSY

VXX2505

1

LLL

2

CN453

4
5

D

16

1234

5

43 36

AD0-AD7

Address

17.2872MHz
CDLRCK
CDBCK
CDDATA
CDTX

AOUT

RFOPC

61 60

IC301

PE5109A

MECHANISM

CONTROL µCOM.

34.5744MHz

7

IC561

BA7082F

VCO IC

76
46
45
44

EFM ENCODER IC

47

X501

16.9344MHz

59

3

IC302

TK11041M-1

TEMPERATURE

SENSOR IC

678

XR-MR7

A

AF ASSY : CN7703

I

CN901

V+ 5D

2
1

48

1
48
30
36
33
35

DIRDATA

V+ U

(DO)

(LI2)

(PB)

(REC)

(CD)

CN301

20
18
19
16
14
13

5
3
2

CN501

DLINE2
DCDIN
DITOUT
DALRCK
DABCK
DADATA
ADLRCK
ADDATA
ADBCK

B

AF ASSY : CN7701

I

C

V+ 5A

IC503

LH64256CK-70

D-RAM

Address Data

IC501

LC89585

15 16 17

DIRBCK

DIRLRCK

2 4 43

IC502

AD1893JST

Fs CONVERTER

IC303

PYY1196

(BR93LC46AF)

EEPROM

AF ASSY : CN7702

I

D

17

5

6

7

8

1

XR-MR7

23

4

3.3 OVERALL WIRING DIAGRAM

SELECT

UNIT

A

F

(AWU7433)

J8502

G

J8503

CN8501

H

(AWU7431)

MOTOR UNIT

CN8003

CN1302

PG11KK-G20

DISPLAY ASSY

K

(AWU7461)

CN5901

UNIT

LOADING

(AWU7432)

B

MECHA

(AXA 7077)

CN8002

PICKU UNIT

(KSM213CCM)

ADE7051

CN1301

ADD7178

ADD7203

MY:Only

CN5951

ADD7202

CN5953
CN5954

CDR SW ASSY

M

(AWU7517)

L

(AWU7466)

SW JOG ASSY

3 CD MICRO CHANGER

CN1101

I 1/4- I 4/4

I

AF ASSY
(XR-MR7/MY : AWU7460)
(XR-MR7/KU/CA : AWU7448)

MY:LEGATO

C

ADD7200

KU/CA:NORMAL

ADD7201

XR-MR7/MY Only

V

LEGATO ASSY
(AWU7525)

B 1/5- B 5/5

B

CD-R CORE ASSY
(PYY1273)

D

PDD1195

CD-R

(PEA1351)

C

(PWZ3759)

SERVO
MECHA

CN601

CN501

D

LOADING

A ASSY

(PWZ3760)

E

ADE7055

CN551

B ASSY

LOADING

(PWZ3761)

18

1234

5

678

XR-MR7

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and P AR TS LIST" or "PCB PARTS LIST".

CN5952

CN5403

CN3201

ADD7204

I

CN5962

N

(AWU7467)

O

ADD7205

AF ASSY

MY:Only

RDS

CDR LED

ASSY

FRONT LINE

ASSY

(MY : AWU7450)

FRONT LINE

ASSY

(KU/CA : AWU7438)

P

J3901

H. P ASSY

(AWU7453)

CN3101

FM/AM TUNER

AA

AB

MODULE

(MY : AXQ7068)

FM/AM TUNER

MODULE

(KU/CA : AXQ7065)

CN6201

CN6001

CN5001

REGULATOR

ASSY

U

(AWU7468)

A

B

AMP ASSY

J

(MY : AWU7464)

(KU/CA : AWU7555)

T1

CN11

S

CN3002

Q

SUB TRANS

ASSY

(MY : AWU7471)

(KU/CA:AWU7459)

SYSTEM CONNECTOR

FOR CT-J7

5

6

XR-MR7/MY Only

7

R

AC IN/OUT

ASSY

(MY:AWU7470)

(KU/CA:AWU7458)

(MY : ATS7271)

(KU/CA : ATS7272)

PRIMAR ASSY

(MY : AWU7469)

SECONDARY ASSY(AWU7451)

T

MY :

50/60Hz AC220-230V

KU/CA :

60Hz AC120V

AC POWER CORD

MY : ADG1127

KU/CA : ADG7021

19

8

C

(KU/CA : AWU7457)

D

1

23

XR-MR7

3.4 FM/AM TUNER MODULE (For MY Type)

A

RF AMP

OSC

B

4

MIX AMP

BUFFER

IF AMP

FM +B SW

C

AM RF TUNING BLOCK

D

20

AA

1234

PLL

5

678

XR-MR7

A

FM/AM TUNER MODULE

AA

(AXQ7068)

B

AF AMP

REGULATOR

CN6001

J

AF AMP

CN6201

KP200IA14L

C

D

AA

5

6

7

8

21

1

23

XR-MR7

3.5 FM/AM TUNER MODULE (For KU/CA Type)

4

A

B

RF AMP

1T378A

OSC

1T378A

MIX AMP

BUFFER

IF AMP

FM +B SW

C

MW RF TUNING BLOCK
AKX7041

D

22

AB

1234

5

678

XR-MR7

FM/AM TUNER MODULE

AB

(AXQ7065)

AF AMP

A

B

CN6001

J

AF AMP

PLL

REGULATOR

CN6201

KP200IA14L

C

D

AB

5

6

7

8

23

1

XR-MR7

3.6 CD-R CORE ASSY (1/5)

23

4

CD-R CORE ASSY (PYY1273)

1/5

• MECHA. CONTROL µCOM BLOCK

B

5/5

B

B

2/5

A

B

ATIP DECODER

C

3/5

B

D

24

1/5

B

1234

5

8 bit LATCH

678

XR-MR7

A

4/5

B

B

8 9 10 11 12

MECHA µ-COM

CN301

L302,L305-L309,
L311-L315,L318,L319 :OTL1040

I

CN7702

EEPROM

IC303

PYY1196

(BR93LC46F)

C

D

1 2 3 4 5 6 7

1/5

5

6

7

B

8

25

1

23

XR-MR7

3.7 CD-R CORE ASSY(2/5) and CD-R PICKUP

4

A

B

CD-R PICKUP
(PEA1351)

B

CD-R CORE ASSY (PYY1273)

2/5

• RF PROCESSOR BLOCK

CN101

CN1

7

8

MULTI PLEXER

C

(REC)
(REC)

D

26

2/5

B

1234

(REC)
(REC)

(REC)

(REC)

MULTI PLEXER

(REC)

(REC)

4

CN102

3

5

678

XR-MR7

: RF SIGNAL ROUTE

(REC)

: AUDIO SIGNAL ROUTE (REC)

3/5

B

1

2

5

B

3/5

A

B

(REC)

(REC)

RF PROCESSOR

(REC)

6

(REC)

(REC)

(REC)

B

B

B

3/5

C

1/5

4/5

D

2/5

B

5

6

7

8

27

1

XR-MR7

3.8 CD-R CORE ASSY (3/5)

23

4

B

A

B

CD-R CORE ASSY (PYY1273)

3/5

• SERVO BLOCK

2/5

B

1/5

B

2

5/5

B

C

2/5

B

D

28

3/5

B

1234

5

678

XR-MR7

A

1/5

B

4/5

B

2/5

MULTI PLEXER

B

B

C

1/5

B

CDR SERVO AMP

1

D

3/5

B

5

6

7

8

29

1

M

XR-MR7

3.9 CD-R CORE ASSY (4/5)

23

4

A

3/5

B

B

B

CD-R CORE ASSY (PYY1273)

4/5

• DIGITAL BLOCK

(REC)

D-RA

VCO

(REC)

13

EFM ENCODER IC

2/5

B

C

D

(REC)

(REC)

(REC)

17

(REC)

18

(REC)

15

16

14

(REC)

(REC)

STRATEGY

CONTROL

(REC)

(DI1)

(DI2)

30

1/5

4/5

B

1234

B

D-RAM

5

678

XR-MR7

: AUDIO SIGNAL ROUTE

(REC)

: REC SIGNAL (after A/D)

(PB)

: PB OUT (before D/A)

(DI1)

: DIGITAL INPUT1

(DI2)

: DIGITAL INPUT2

(DO)

: DIGITAL OUT

: The power supply is shown with the marked box.

A

(DO)

16.9344MHz

(REC)

FS CONVERTER

(PB)

(DO)

(REC)

(PB)

(REC)

(PB)

(REC)

VCO

B

CN501

(REC)

(REC)

(PB)

(DI1)

(D0)

(DI2)

(PB)(PB)

1
2
3
4

12

5
6
7
8

9
10
11

C

I

CN7701

B

5/5

MULTI PLEXER

5

6

L511-L513,L515-L518,
L522,L524,L526 : OTL1040
F510,F514,F520
F521,F527 : VTH1097

7

B

4/5

8

D

31

1

23

4

XR-MR7

3.10 CD-R CORE ASSY(5/5), SERVO MECHANISM, LOADING A and LOADING
B ASSYS

A

3/5

B

B

CN453

CN451

CN452

1 2

B

CD-R CORE ASSY (PYY1273)

5/5

• DECODER BLOCK

5ch ACTUATOR DRIVER

3

C

CN501

S501

LOADING A

D

ASSY (PWZ3760)

LOADING B

E

ASSY (PWZ3761)

CN551

CARRIAGE MOTOR
ASSY (SLIDER)

CN601

D

PEA1350

DC MOTOR ASSY
(SPINDLE)
PEA1235

S601

SERVO MECHANISM

C

ASSY (PWZ3759)

LOADING MOTOR
ASSY
VXX2505

PC651
NJL5803K-F1

J601

B

2/5

32

5/5

B

1234

C

D

E

5

678

XR-MR7

2/5

B

B

5

4

A

1/5

B

CD DECODER

CN901

4/5

B

CN7703

I

C

: RF SIGNAL ROUTE
: AUDIO SIGNAL ROUTE

: The power supply is shown with the marked box.

5

6

D

5/5

B

7

8

33

XR-MR7

VOLTAGES and WAVEFORMS

CD-R CORE ASSY

1/5

B

Media Pickup Position

12cm Inner 0V 0V
12cm Outer 5V 0V

CD

8cm Inner 0V 0V
8cm Outer 5V 0V
12cm Inner 5V 0V

CD-R

CD-RW

12cm Outer 5V 0V
8cm Inner 0V 5V
8cm Outer 5V 5V

at FS = 44 kHz

(at FS Converter through)

FSR/XTHR
(CN301-pin 2)

at DIGITAL LOCK at DIGITAL UNLOCK

XVCO
(CN301-pin3)

UNLOCK
(CN301-pin7)

XPFAIL
(CN301-pin4)

XRST
(CN301-pin11)

0V 5V

0V 5V

0V 5V

5V

5V

DGAI

(IC351-pin56)

D8CM

(IC351-pin57)

Others

−

−

Note :
The encircled numbers denote measuring point in the schematic diagram.

1/5

CD-R CORE ASSY

B

CN301 - pin 5 (MREQ)

1

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

CN301 - pin 6 (EN_CE)

2

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

CN301 - pin 8 (XFUSE)

3

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

CN301 - pin 13 (MSI)

7

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

IC301 - pin 28 (SCLK)

8

V: 2V/div. H: 2µsec/div.
(Disck Loading)

IC301 - pin 27 (XL2)

9

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

CD-R CORE ASSY

3/5

B

Operating
Mode

CLV

(IC201-pin13)

ECLV

(IC201-pin14)

STOP 0V 0V
CAV 0V 5V
CLV 5V 0V
ECLV 5V 5V

CD-R CORE ASSY

4/5

B

A/D Converter used

ADSTBY
(CN501-pin4)

AMUTE
(CN501-pin9)

LRSTD
(CN501-pin10)

at Analog REC Pause

or REC

0V 5V

at MUTE ON

(Audio Signal Not Output)

5V 0V

5V −

Others

at MUTE OFF

(Audio Signal Output)

CN301 - pin 9 (MACK)

4

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

CN301 - pin 10 (MSCK)

5

V: 0.2V/div.(10 : 1) H: 0.5µsec/div.
(PLAY)

CN301 - pin 12 (MSO)

6

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

IC301 - pin 26 (DATA)

10

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

IC301 - pin 25 (CLOK)

11

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

IC301 - pin 24 (XLAT)

12

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

34

XR-MR7

CD-R CORE ASSY CD-R CORE ASSY

2/5

B

CN102 - pin 1 (RF)

1

V: 20mV/div.(10 : 1) H: 0.5µsec/div.
(PLAY)

CN102 - pin 3 (MPP)

2

V: 10mV/div.(10 : 1) H: 2msec/div.
(PLAY)

CN102 - pin 4 (TE)

3

V: 5mV/div.(10 : 1) H: 2msec/div.
(PLAY)

TP113 (RFAC)

5

V: 0.2V/div.(10 : 1) H: 0.2µsec/div.
(PLAY)

IC101 - pin 22 (ATFG)

6

V: 0.2V/div. H: 20µsec/div.
(REC)

CN101 - pin 3 (TRK +)

7

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

3/5

B

TP210 (FG)

1

V: 0.2V/div.(10 : 1) H: 1msec/div.
(PLAY)

Foot of R212 (SPDL)

2

V: 20mV/div. H: 2msec/div.
(PLAY)

CN102 - pin 6 (FE)

4

V: 5mV/div.(10 : 1) H: 2msec/div.
(PLAY)

CN101 - pin 4 (FCS +)

8

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

35

XR-MR7

CD-R CORE ASSY CD-R CORE ASSY

4/5

B

CN501 - pin 2 (ADBCK)

1

V: 0.2V/div.(10 : 1) H: 0.2µsec/div.
(STOP)

CN501 - pin 3 (ADDATA)

2

V: 0.2V/div.(10 : 1) H: 0.2µsec/div.
(REC)

CN501 - pin 5 (ADLRCK)

3

V: 0.2V/div.(10 : 1) H: 10µsec/div.
(STOP)

CN501 - pin 14 (DABCK)

7

V: 0.2V/div.(10 : 1) H: 0.2µsec/div.
(STOP)

CN501 - pin 16 (DALRCK)

8

V: 0.2V/div.(10 : 1) H: 10µsec/div.
(STOP)

CN501 - pin 18 (DIN1)

9

V: 0.2V/div.(10 : 1) H: 0.2µsec/div.
(REC_OPTICAL)

IC501 - pin 88 (EFM)

13

V: 0.2V/div.(10 : 1) H: 0.5µsec/div.
(REC)

IC431 - pin 6 (17M)

14

V: 0.2V/div.(10 : 1) H: 50msec/div.
(REC)

IC431 - pin 25 (ODON)

15

V: 0.2V/div.(10 : 1) H: 0.1µsec/div.
(REC)

5/5

B

CN452 - pin 2 (SL +)

1

V: 0.2V/div.(10 : 1) H: 5msec/div.
(PLAY)

CN452 - pin 3 (SP +)

2

V: 0.2V/div.(10 : 1) H: 5msec/div.
(PLAY)

CN452 - pin 9 (FG)

3

V: 0.2V/div.(10 : 1) H: 1msec/div.

CN501 - pin 7 (MCK)

4

V: 0.1V/div.(10 : 1) H: 50msec/div.
(STOP)

CN501 - pin 12 (CL)

5

V: 0.2V/div.(10 : 1) H: 0.5µsec/div.
(STOP)

CN501 - pin 13 (DADATA)

6

V: 0.2V/div.(10 : 1) H: 0.5µsec/div.
(PLAY)

CN501 - pin 19 (DITOUT)

10

V: 0.2V/div.(10 : 1) H: 0.2µsec/div.
(STOP)

CN501 - pin 20 (DIN2)

11

V: 0.2V/div.(10 : 1) H: 0.2µsec/div.
(REC_Coaxial)

CN501 - pin 11 (DI)

12

V: 0.2V/div.(10 : 1) H: 5msec/div.
(STOP)

IC431 - pin 29 (WLDON)

16

V: 0.2V/div.(10 : 1) H: 1msec/div.
(REC)

IC431 - pin 34 (REWLDON)

17

V: 0.2V/div.(10 : 1) H: 1msec/div.
(REC)

TP503 (W/XR)

18

V: 0.2V/div.(10 : 1) H: 1msec/div.
(REC)

IC401 - pin 25 (MDP)

4

V: 0.2V/div.(10 : 1) H: 5µsec/div.
(PLAY)

IC401 - pin 25 (MDP)

4

V: 0.2V/div.(10 : 1) H: 5µsec/div.
(REC)

IC401 - pin 20 (MIRR)

5

V: 0.2V/div.(10 : 1) H: 20µsec/div.
(REC_CD-RW)

36

1

234

3.10 MOTOR, LOADING, SELECT and PICKUP UNITS

SELECT UNIT

F

(AWU7433)

MOTOR UNIT (AWU7431)

H

J101

J101

XR-MR7

(F)

: FOCUS SERVO LOOP LINE

(T)

: TRACKING SERVO LOOP LINE

(S)

: SPINDLE SERVO LOOP LINE

(C)

: CARRIAGE SERVO LOOP LINE

(L)

: LOADING SERVO LOOP LINE

CN101

S11B-PH-K-S

A

CN1302

2/4

I

B

LOADING UNIT (AWU7432)

G

PICKUP UNIT
(KSM213CCM)

J102

J102

(S)

(S)

(S)

(S)

(C)

(C)

(L)

(L)

CN1301

(L)

(L)

(C)

(C)

2/4

I

C

CN1101

2/4

I

(F)

(T)

(F)

1

2

3

(F)
(T)
(T)(T)
(F)

F

G

H

4

D

37

1

23

XR-MR7

3.11 AF (1/4) and H.P ASSYS

4

C3205

470p

A

(L1)

LINE1 / PHONO IN

KU/CA :220p

MY : 330 p

C3203

KU/CA :220p

MY : 330 p

(REC)

(L1)

470p
C3204

470p

(L2)

R3299

(REC)

(L1)

(REC)

µ

470p

C3206

B

CN5403

O

4.952V

(Lin)

(Lin)

(L1)

(L2)

(CD-R) (CD-R)

(TX)

(CD)

(REC)

11.738V

Separator

(Lin) (Lin)

(REC)

(Lin)

(TX)

(REC)

(CD)

(CD)

-5.667V

10.132V

4.954V

C

(CD)

(TX) (TX)

(CD)

-5.673V

(REC)(REC)

(TX)

1.226V

(REC)(REC)

(TX)

16.242V

I 3/4

0.615V

-0.002V

D

(CD-R) (CD-R) (CD-R)

8.165V

-0.002V

5.532V

38

I

I 3/4

1/4

Q

J13

1234

5

SIGNAL ROUTE

(CD)

: CD AUDIO SIGNAL

(L1)

: LINE 1 SIGNAL

(L2)

: LINE 2 SIGNAL

(MAIN)

: MAIN OUT SIGNAL

678

XR-MR7

(CDR)

: CD-R AUDIO SIGNAL

(TX)

: TUNER AUDIO SIGNAL

(Lin)

: LINE IN SIGNAL

(REC)

: RECORDING SIGNAL

I 1/4

AF ASSY(1/4)

(MY : AWU7460)

(KU/CA : AWU7448)

I 4/4

A

(Lin)

(TX)

(CD-R)

10.216V

(REC)

10.977V

(CD)

11.739V

(REC)

(REC)

(1/2)

(REC)

(REC)

(REC)

(REC)(REC)

I 4/4

MY:Only

To CT-J7

B

MY:Only

(MAIN)

MY:Only

(MAIN)

-5.674V

(TX)

CN6002

J

J

CN3002

(MAIN)

(MAIN)

(MAIN)

C

(2/2)

(MAIN)

(MAIN) (MAIN)

J

(REC)(REC)

O

J5401

D

(TX)

(MAIN)

(MAIN)

CN3101

4.954V

11.742V

CN3001

J

L501

4.940V

VTL1094

4.913V

P

4.953V

8.775V

4.939V

H.P ASSY

(AWU7453)

5.948V

: The power supply is shown with the marked box.

1/4

I

5

6

7

P

8

39

1

XR-MR7

3.12 AF (2/4) and LEGATO ASSYS

A

B

23

5.948V

4.868V

(SM)

(SM)

(SM)(SM)

(SM)

(CM)

4

4.888V

(SM)

(CM)
(CM)
(TS)
(TS)
(FS)
(FS)

2.444V

(F)

(CM)

(CM)

(F)

5.681V

4.889V

1.629mV

0.087V

IC1101- Pin 16 :

2

TEST MODE,
Tracking Open (TRER)

H : 5msec/div

VC : IC1101- Pin22

2.44V

(CD)

To CD MECHA.

C

(L)

(S)

(C)

To CD MECHA.

5.948V

1.0Vp-p

VC

(CD)

(T)

(CD)

(F)

(T)

(T)

2

(T)

1

D

40

To P.U Assy

2/4

I

(F)
(T)

(T)

(F)

IC1101- Pin 13:

1

PLAY MODE (RF)

H : 500nsec/div

1.0Vp-p

VC

(F)

1234

5

678

XR-MR7

I 2/4

KU/CA:Only

(SM)

(CM)
(CM)
(TS)
(TS)
(FS)
(FS)

(F)

100p

2.120V

(PC)

4.870V

KU/CA:Only

MY:Only

4.885V

AF ASSY(2/4)

(MY : AWU7460)

(KU/CA : AWU7448)

4.885V

4.881V

MY:Only

W267

KU/CA:Only

W268

KU/CA:Only

(CD)

(CD)

I 4/4

4.936V

11.740V

(D)(D)

MY:Only

(CD)

–5.673V

A

I 1/4

B

(T)

(T)

(CD)

(CD)

LEGATO ASSY

V

MY:Only

4.887V

0.163V

MY:Only

4.633V

SIGNAL ROUTE

(CD)

: CD AUDIO SIGNAL ROUTE

(FS)

: FOCUS SERVO LOOP LINE

(TS)

: TRACKING SERVO LOOP LINE

(AWU7525)

0.164V

(SM)

(CM)

(LM)

4.847V

4.885V

(CD)

: SPINDLE MOTOR ROUTE
: CARRIAGE MOTOR ROUTE
: LOADING MOTOR ROUTE

(PC)

MY:Only

C

(CD)

(PC)

6.142V

(CD)

D

: The power supply is shown
with the marked box.

2/4

5

6

7

I

V

8

41

1

XR-MR7

3.13 AF ASSY (3/4)

23

4

I 3/4

A

6.247V

AF ASSY(3/4)

(MY : AWU7460)

(KU/CA : AWU7448)

6.247V

6.247V

11.735V

(CDR)(CDR)

(CDR)(CDR)

4.934V

R7406

KU/CA:220

R7407,R7408

KU/CA : 0

MY:100

KU/CA:PCM1716E
MY:PE8001A

KU/CA:STBY

MY:100

C7412

MY:100p

4.935V

4.760V

(CDR)(CDR)

17.25mV

B

3.365mV

I 1/4

4.932V

(REC) (REC)

4.688V

2.096V

(REC)

100p

4.908V

C

(REC)

2.09V

4.688V

2.096V

R7305

2.99V

VTL1096

MY:1.8k

KU/CA:560

D

42

3/4

I

1234

5

678

XR-MR7

SIGNAL ROUTE

(CDR)

: CD-R AUDIO SIGNAL

(REC)

: RECORDING SIGNAL

V+5D

4.951V

4.939V

R7492

KU/CA:330

MY : 1.8k

4.939V

R7451

KU/CA:560

MY : 0

17.40mV

4.585V

57.75mV

2.167V

VTL1096

L7454

2.002V

16.10mV

A

I 4/4

VTL1096

CN501

B

B

VTL1105

470

I 1/4

C

CN301

B

VTL1096

4.906V

4.949V

CN901

8.781V

B

D

I 1/4

3/4

I

5

6

7

8

43

1

23

XR-MR7

3.14 AF (4/4), FRONT LINE, CDR SW and CDR LED ASSYS

A

I 1/4

4.633V

5.525V

4.632V

4

B

4.952V

5.505V

FRONT LINE ASSY

O

(MY:AWU7450, KU/CA:AWU7438)

C

(L2)

L5409

L5404

VTL1096

220p

VTL1096

220p

C5413

L5407

1000p

VTL1096

(L2)

(L2)

(L2)

(REC)

I 1/4

CN3201

P

1000p

J5401

DB011ND0

D

44

4/4

I

1234

C5414

L5406

VTL1096

L5408

L5405

(REC)

VTL1096

O

VTL1096

220p220p

(REC)

SIGNAL ROUTE

(L2)

: LINE 2 SIGNAL

(REC)

: RECORDING SIGNAL

5

678

XR-MR7

AC:7.704V

I 4/4

4.632V

AF ASSY(4/4)

(MY : AWU7460)

(KU/CA : AWU7448)

4.707V

5.051V

5.524V

MY:Only

A

37.30V

CN5601

K

B

M

: The power supply is shown
with the marked box.

5

CDR SW ASSY

(AWU7517)

L

CN5953

6

CDR LED ASSY

N

(AWU7467)

7

CN5952

L

I

4/4

M

N

8

C

D

45

A

1

23

4

XR-MR7

3.15 AMP, REG, SECONDARY, PRIMARY, SUBTRANS and AC IN/OUT ASSYS

23.083V

100p

MY:Only

(MAIN)

100p

-23.035V

-39.32V

39.41V

39.44V

(MAIN)

-39.39V

B

C

AKP1121 (MY)
AKP1122 (KU/CA)

D

VNF1084

KU/CA
TYPE
Only

POWER
TRANSFORMER

(MY:AWU7469)

PRIMARY ASSY

(KU/CA:AWU7457)

T

FU 2

KU/CA : AEK1082 4A/125V

MY : AEK1057 T2.0AL250V

FU 2

CN1

MY :
TYPE
Only

AKP1034

AC IN/OUT

R

(KU/CA:AWU7458)

ASSY

(MY:AWU7470)

SECONDARY

S

ASSY

(AWU7451)

FU 1

ATT7064 (MY)

ATT7063 (KU/CA)

L 1

ATF–151

SUB TRANS

Q

ASSY

(MY:AWU7471)

(KU/CA:AWU7459)

4.899V

FU 1

MY : AEK1058 T2.5AL250V

KU/CA : AEK1083 5A/125V

6.69V

(MAIN)

36.97V

6.69V

21.68V

14.65V

CN21

I

CAUTION : FOR CONTINUED PROTECTION AGAINST

11.76V

RISK OF FIRE. REPLACE ONLY WITH SAME
TYPE NO. 491004 FOR IC14, 4910007 FOR
IC15, IC18, IC19 MFD. BY LITTELFUSE INC.

(MAIN)

46

Q

1234

RJ

S

T

(MAIN)

5

678

XR-MR7

SIGNAL ROUTE

(MAIN)

: MAIN OUT SIGNAL

(TX)

: TUNER AUDIO SIGNAL

R6099

KU/CA:1.2k

MY : 0

–5.675V

A

J

AMP ASSY

(MY : AWU7464)

(KU/CA : AWU7555)

(MAIN)

(MAIN)

(MAIN)

CN6201 (MY TYPE)

AA

CN6201 (KU/CA TYPE)

AB

(TX)

(TX)

(MAIN)

4.944V

4.898V

(MAIN)

14.58V

4.96V

(MAIN)

14.58V

4.97V

(MAIN)

(TX) (TX)

(MAIN)

(MAIN)

12.32V

11.738V

4.94V

37.23V

37.29V

11.742V

4.954V

4.915V

4.954V

8.777V

I

CN6003

I

CN3102

B

C

14.63V

14.63V

4.95V

5.95V

14.56V

REGULATOR

U

ASSY

(AWU7468)

: The power supply is shown with the marked box.

• NOTE FOR FUSE REPLACEMENT

CAUTION -

5

FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE WITH SAME TYPE AND RATINGS ONLY.

6

4.95V

8.73V

(MAIN)

P

J3901

7

4.898V

4.94V

(MAIN)

5.948V

I

CN521

J U

8

D

47

1

XR-MR7

3.16 DISPLAY and SW JOG ASSYS

DISPLAY ASSY

A

B

K

(AWU7461)

23

36.6V

4

4.96V

C

CN5501

I

4.95V

D

48

K

1234

DISPLAY ASSY
S5901 : 1 0
S5902 : 2 0
S5903 : 3 0
S5904 : LINE1/PHONO
S5905 : LINE2
S5906 : 1
S5907 : 2
S5908 : 3

CD

CD SELECT

S5909 : CD-R
S5914 : FM/AM
S5915 : TAPE
S5916 : 1 (–)
S5917 : 7 (STOP)
S5918 : 6 (PLAY/PAUSE)

S5919 : ¡ (+)
S5920 : SFC (DEMO)
S5921 : DISPLAY

5

678

XR-MR7

A

SW JOG ASSY

L

(AWU7466)

B

POWER REC

REC/PLAY

ALL 1-TRACK RENTAL

C

SW & JOG ASSY
S5951 : TIMER/CLO.
S5952 : ENTER
S5953 : MENU
S5954 : FINALIZE
S5955 : ERASE
S5956 : P.BASS
S5957 : REC STOP

5

S5959 : RENTAL
S5960 : 1–TRACK
S5961 : ALL
S5962 : REC PLAY
S5963 : REC
S5964 : STANDBY/ON
S5965 : VOLUME JOG

6

CN5962

N

S5966 : MULTI JOG
S5969 : DIGTAL VOL
S5970 : ANALOG VOL

CN5954

M

K

7

L

8

49

D

1

23

XR-MR7

4. PCB CONNECTION DIAGRAM

NOTE FOR PCB DIAGRAMS :

A

1. Part numbers in PCB diagrams match those in the schematic
diagrams.

2. A comparison between the main parts of PCB and schematic
diagrams is shown below.

Symbol In PCB
Diagrams

BCE

BCE

D

Symbol In Schematic
Diagrams
BCEBCE

BCE

BCE

DGS

DGGSS

Part Name

Transistor

Transistor
with resistor

Field effect
transistor

Resistor array

3-terminal
regulator

4.1 FM/AM TUNER MODULE ( For MY Type )

FM/AM TUNER MODULE

B

AA

3. The parts mounted on this PCB include all necessary parts for
several destinations.
For further information for respective destinations, be sure to
check with the schematic diagram.

4. View point of PCB diagrams.

Connector

P.C.Board

Capacitor

Chip Part

SIDE A

SIDE B

CN6001

J

4

SIDE A

C

Q6204 Q6203

FM/AM TUNER MODULE

AA

VR6201

SIDE B

D

50

AA

Q6101

Q6501

Q6102 - Q6105 Q6205

Q6214

Q6601

Q6202

IC6202

Q6201

IC6201

(ANP7160-B)

1234

1

234

XR-MR7

4.2 FM/AM TUNER MODULE (For KU/CA Type)

FM/AM TUNER MODULE

AB

Q6204

CN6001

J

A

B

VR6201

Q6203

FM/AM TUNER MODULE

AB

Q6306

Q6304

Q6401

SIDE A

Q6402

Q6303Q6302 Q6301

Q6214

Q6403

Q6404

Q6205

Q6202 Q6201

IC6202

C

(ANP7159-B)

IC6201

D

SIDE B

AB

1

2

3

4

51

1

23

4

XR-MR7

4.2 CD-R CORE ASSY SIDE A

A

CD-R CORE ASSY

B

• This PCB is a four-layered board.

E

CN551

D

CN501

C

CN601

I

CN7703

B

I

CN7702

To

C

CD-R
PICKUP

I

CN7701

(PNP1465-B)

VR164

VR161 VR141 VR162 VR163 VR101

IC361-IC364 IC303 IC302 IC305IC931-IC933

D

IC351 IC371 IC301 IC304 IC503Q301

Q302 Q303 Q402 Q401 IC401 IC501 IC507 IC506IC352

IC451 IC201 IC502 IC509Q203 Q203IC251-IC254

Q201 IC101 Q142 IC562 IC431

52

B

1234

1

234

XR-MR7

SIDE B

CD-R CORE ASSY

B

• This PCB is a four-layered board.

A

B

Q551 Q202 IC255

IC505 IC508 IC181

Q102 IC561 IC141 IC161

Q103 Q141

1

2

C

(PNP1465-B)

D

B

3

4

53

1

XR-MR7

4.3 SERVO MECHA, LOADING A and LOADING B ASSYS

A

23

4

CARRIAGE

MOTOR

M

B

SPINDLE

MOTOR

SERVO

C

MECHANISM
ASSY

M

CN452

B

D

LOADING A
ASSY

SERVO

C

MECHANISM
ASSY

LOADING A

D

ASSY

C

CN451

B

LOADING B

LOADING B

E

ASSY

SIDE A SIDE B

D

54

C

D

1234

E

LOADING

MOTOR

M

B

CN453

(PNP1447-C)

E

ASSY

1

4.4 SELECT UNIT, LOADING UNIT and MOTOR UNIT

234

XR-MR7

SELECT

F

UNIT

A

B

MOTOR

H

UNIT

M

CN1302

I

M

LOADING

G

UNIT

(ANP7314-B)

C

(ANP7314-B)

(ANP7314-B)

SIDE A

D

1

2

3

F

G

H

4

55

XR-MR7

M

4.5 AF ASSY

A

B

1

AF ASSY

I

23

CN3002

J

B

CN901

CN3001

J

4

CD MECHA

CD

J13

Q

CN1902

V

C

D

56

I

1234

1

234

XR-MR7

CD MECHA

HA

CN6002

J

CD MECHA

CN5601

K

Q1342

Q1346

Q1341 Q1345

Q1101

IC21

Q21

Q22

SIDE A

A

B

B

1

CN501

B

CN301

C

CN5403

O

D

(ANP7320-D)

57

I

2

3

4

A

B

1

XR-MR7

AF ASSY

I

23

4

C

D

58

I

1234

1

234

XR-MR7

SIDE B

A

Q5752 Q5751 Q3125

Q1343 Q1346

Q1342

IC5751

Q1344 Q1341

Q1345

Q5501 Q1406

Q5505

IC1301

Q1405

IC1101

Q22 Q21

B

IC5501

Q5502

IC1201
Q1403

Q1402

Q1402
IC3131

Q1203
Q5503

Q1401
Q3143

Q7304

IC7502

IC7401

IC3031
IC7301

IC7501

Q4602

Q1404
Q1901

Q3142

Q5504

Q3141

Q3144

Q7510Q7509 Q1911Q1201

IC3101

IC3031

Q3122

IC3151

Q3121

Q4601

C

Q7231

Q7502 Q7232

IC7231

Q7236 Q7237

IC3081

D

(ANP7320-D)

59

I

1

2

3

4

1

23

XR-MR7

4.6 AMP, H.P and REGULATOR ASSYS

4

A

J

AMP ASSY

B

CN6201 (MY)

AA

CN6201 (KU/CA)

AB

C

IC3301

Q301

Q302

60

IC5003

J

1234

D

S

J11

I

IC12
IC301

CN521

IC5001 Q5001

CN3102

I

IC15

I

(ANP7321-D)

CN6003

1

234

XR-MR7

SIDE A

H.P ASSY

P

REGULATOR ASSY

U

IC503 IC502 IC501 IC504 IC505 Q502 Q501

O

J5401

To GND Chassis

(ANP7320-D)

A

B

C

(ANP7320-D)

D

P

1

2

3

U

4

61

1

REGULATOR ASSY

U

H.P ASSY

P

(ANP7320-D)

(ANP7320-D)

XR-MR7

23

4

A

B

SIDE B

C

D

62

P

U

1234

J

AMP ASSY

1

234

XR-MR7

SIDE B

A

B

C

(ANP7321-D)

Q5001

Q3612

1

Q322

IC5001

2

Q320

Q324 Q323

Q3611

Q3608

Q3605 Q3606 Q3607

3

Q3610
Q3609

Q3303

Q3302

Q3301

Q303
Q304

IC3301 Q301

Q302

IC5003

J

4

D

63

1

23

XR-MR7

4.7 AC IN/OUT, SUBTRANS, PRIMARY and SECONDARY ASSYS

AC IN/OUT

R

A

B

ASSY

AC IN AC OUT

SUBTRANS

Q

ASSY

4

SIDE A

I

CN21

(ANP7321-D)

PRIMARY

T

(ANP7321-D)

ASSY

C

(ANP7321-D)

POWER TRANSFORMER

SECONDARY

S

ASSY

D

64

Q

R

1234

S

T

IC19

IC18

J

IC14

CN11

(ANP7320-D)

1

234

XR-MR7

SIDE B

SUBTRANS

Q

ASSY

PRIMARY

T

ASSY

(ANP7321-D)

AC IN/OUT

R

ASSY

A

B

(ANP7321-D)

SECONDARY

S

ASSY

1

C

(ANP7321-D)

(ANP7320-D)

Q

2

3

R

S

T

4

65

D

1

23

4

XR-MR7

4.8 DISPLAY ASSY SIDE A

A

DISPLAY

K

CN5951

L

ASSY

B

Q5601

CN5501

I

C

D

(ANP7321-D)

66

K

1234

1

234

XR-MR7

SIDE B

DISPLAY

K

ASSY

A

Q5603

IC5602

B

IC5601

Q5602

IC5801

(ANP7321-D)

C

D

K

67

1

2

3

4

1

23

4

XR-MR7

4.9 SW JOG, CDR SW and CDR LED ASSYS SIDE A

A

SW JOG ASSY

L

CDR LED ASSY

N

(ANP7320-D)

B

CDR SW ASSY

M

(ANP7320-D)

C

D

68

(ANP7321-D)

L

M N

1234

CN5901

K

1

234

XR-MR7

SIDE B

SW JOG ASSY

L

CDR LED ASSY

N

CDR SW ASSY

M

A

(ANP7320-D)

B

Q5951

Q5952

(ANP7321-D)

(ANP7320-D)

C

D

1

2

3

L

M N

4

69

1

23

XR-MR7

4.10 FRONT LINE and LEGATO ASSYS

4

FRONT LINE ASSY

A

B

O

I

CN3201

(ANP7320-D)

FRONT LINE ASSY

O

Q3123

Q3124

LEGATO ASSY : MY Only

V

C

I

CN1901

D

(ANP7320-D)

LEGATO ASSY : MY Only

V

IC1902

IC1901

70

SIDE A

O

V

1234

SIDE B

Mark No. Description Part No.Mark No. Description Part No.

5. PCB PARTS LIST

NOTES:•Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List.

7 LIST OF WHOLE PCB ASSEMBLIES

The mark found on some component parts indicates the importance of the safety factor of the part.

•

Therefore, when replacing, be sure to use parts of identical designation.
When ordering resistors, first convert resistance values into code form as shown in the following examples.

•

Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%,
and K=10%).

560 Ω→56 × 10
47k Ω→47 × 10

1

→ 561 ........................................................ RD1/4PU 5 6 1 J

3

→ 473 ........................................................ RD1/4PU 4 7 3 J

0.5 Ω→R50 .....................................................................................RN2H R 5 0 K

Ex.2 When there are 3 effective digits (such as in high precision metal film resistors).

5.62k Ω→ 562 × 10

1

→ 5621 ...................................................... RN1/4PC 5 6 2 1 F

1 Ω→1R0 .....................................................................................RS1P

1 R 0

XR-MR7

K

Mark

FM/AM TUNER MODULE AXQ7068 AXQ7065

CD-R CORE ASSY RYY1273 RYY1273
NSP MECHANISM ASSY PWX1570 PWX1570
NSP SERVO MECHANISM ASSY PWZ3759 PWZ3759
NSP LOADING A ASSY PWZ3760 PWZ3760
NSP LOADING B ASSY PWZ3761 PWZ3761

NSP 3CD UNIT AWM7473 AWM7473

MOTOR UNIT AWU7431 AWU7431

LOADING UNIT AWU7432 AWU7432
NSP SELECT UNIT AWU7433 AWU7433

NSP MAIN ASSY AWM7479 AWM7477

AF ASSY AWU7460 AWU7448

FRONT LINE ASSY AWU7450 AWU7438

H.P ASSY AWU7453 AWU7453

SECONDARY ASSY AWU7451 AWU7451
NSP CDR LED ASSY AWU7467 AWU7467

CDR SW ASSY AWU7517 AWU7517

LEGATO ASSY AWU7525 Not used

NSP COMPLEX ASSY AWM7480 AWM7478

AMP ASSY AWU7464 AWU7555

REG ASSY AWU7468 AWU7468

PRIMARY ASSY AWU7469 AWU7457

SUB TRANS ASSY AWU7471 AWU7459

AC IN/OUT ASSY AWU7470 AWU7458

DISPLAY ASSY AWU7461 AWU7461

SW JOG ASSY AWU7466 AWU7466

MY Type KU/CA Type

Part No.

RemarksSymbol and Description

71

XR-MR7

Mark No. Description Part No.Mark No. Description Part No.

7 CONTRAST OF PCB ASSEMBLIES

AF ASSY

I

AWU7460 and AWU7448 are constructed the same except for the following :

Mark Symbol and Description

IC5751
IC7401
Q1201,Q1911
Q1403,Q1404
Q1901

AWU7460 AWU7448

BU1923F
PE8001A

2SC2412K

Not used

DTA124EK

Part No.

Remarks

Not used

PCM1716E

Not used

DTA124EK

Not used

Q4601
Q5751
Q5752
L5751
C22

C1107
C1201,C1202
C1204
C2551- C2553,C7412
C3015

C3101- C3104
C3126,C3127
C3335- C3340
C3345- C3346
C4601

C5751, C5752
C5753,C5755
C5754
C5756
C5757

C5758
D5506
R1201
R1202
R1205

R1286,R1287
R1420,R1951,R3991,R5754,R5755
R1931
R2551- R2553
R2554

2SA1037K(RS)

2SA1037K

DTC143EK

LAU1R0J

CEAT470M25

CKSQYB103K50

Not used
CCSQCH101J50
CCSQCH101J50
CKSQYB473K25

CCSQCH331J50

CEAT2R2M50

CKSQYB104K25

ACG7041

CKSQYB104K25
CCSQCH270J50

CKSQYB103K50

CEAT330M16
CKSQYB561K50
CCSQCH271J50

CEAT100M50

1SS133
Not used
Not used

RS1/10S103J

Not used

RS1/10S0R0
RS1/10S103J
RS1/10S221J
RS1/10S472J

2SA1037K(QR)

Not used
Not used
Not used

CEAT470M35

CKSQYB104K25
CCSQCH150J50

Not uaed

Not used

CKSQYB104K25
CCSQCH221J50

CEAT100M50

Not used
Not used

CKSQYB103K50

Not used
Not used
Not used
Not used
Not uesd

Not used

Not used
RS1/10S331J
RS1/10S105J

Not used
RS1/10S221J

Not used

Not used

Not used

Not used

72

R3335- R3338
R5751
R5752
R5753
R5960

R5961
R7305
R7406- R7408
R7451
R7492

CN1901
CN2551
X1201 Crystal Resonator (16.9344MHz)
X5751 Crystal Resonator (4.332MHz)

RD1/10S100J
RS1/10S223J
RD1/10S222J
RS1/10S101J
RS1/10S473J

Not used
RS1/10S182J
RS1/10S101J

RS1/10S0R0J

RS1/10S182J

AKM7049

AKP7042

Not used

ASS7004

Not used
Not used
Not used
Not used
Not used

RS1/10S473J
RS1/10S561J
RS1/10S0R0J
RS1/10S561J
RS1/10S331J

Not used
Not used

PSS1008

Not used

Mark No. Description Part No.Mark No. Description Part No.

AC IN/OUT ASSY

R

AWU7470 and AWU7458 are constructed the same except for the following :

Mark Symbol and Description

CN 01
CN02

SUB TRANS ASSY

Q

AWU7471 and AWU7459 are constructed the same except for the following :

Mark Symbol and Description

KN01
R01
T02

AWU7470 AWU7458

AKP1121
AKP1034

AW7471 AWU7459

Not used
Not used
ATT7064

Part No.

Part No.

XR-MR7

Remarks

AKP1122

Not used

Remarks

VNF1084

RCN1080

ATT7063

AMP ASSY

J

AWU7464 and AWU7555 are constructed the same except for the following :

Mark Symbol and Description

Q304
Q320
C3305
C3317
R6099

FRONT LINE ASSY

O

AWU7450 and AWU74638are constructed the same except for the following :

Mark Symbol and Description

CN5403 52045-0945 HLEM9S-1

PRIMARY ASSY

T

AWU7464 AWU7555

2SA1037K (RS)

2SA1037K (RS)
CCSQCH101J50
CCSQCH101J50

RS1/10S0RJ

AWU7450 AWU7438

Part No.

2SA1037K(QR)

2SA1037K (QR)

Not used
Not used

RS1/10S1R2J

Part No.

Although AWU7469 and AWU7457 are different in part number, they consist of the same components.

Remarks

Remarks

73

XR-MR7

Mark No. Description Part No.Mark No. Description Part No.

PCB PARTS LIST FOR XR-MR7/MY UNLESS OTHERWISE NOTED

FM/AM TUNER MODULE (AXQ7068)

AA

SEMICONDUCTORS

IC6201 LA1832ML
IC6202 LC72131MD
Q6102 2SC2223
Q6203 2SC2705
Q6201,Q6202 2SC2712

Q6103,Q6214,Q6601 2SC2714
Q6104,Q6105 2SK302
Q6101 3SK194
Q6204 DTA124ES
Q6205 DTC124EK

D6202 1SS254
D6101-D6104 1SV228

C6244 CEAS470M16
C6249,C6250,C6265,C6266 CEAS4R7M50
C6258 CEJA470M16
C6215 CFTLA103J50
C6214 CFTLA224J50

C6115,C6125,C6126,C6211,C6254CKSQYB102K50
C6601 CKSQYB102K50
C6102,C6114,C6121,C6123,C6124CKSQYB103K50
C6210,C6213,C6237,C6267,C6276CKSQYB103K50
C6279,C6281,C6604 CKSQYB103K50

C6251,C6252 CKSQYB123K50
C6606,C6607 CKSQYB182K50
C6203,C6259 CKSQYB223K50
C6228 CKSQYB472K50
C6209 CKSQYB473K50

COILS AND FILTERS

L6106 FM COIL ATC1003
L6105 FM RF COIL ATC1015
L6101 FM ANTENNA COIL ATC1016
L6102 FM ANTENNA COIL ATC1017
L6103 FM RF DRIVE COIL ATC1018

L6104 FM RF TUNING COIL ATC1019
F6203 FM CERAMIC FILTER ATF-119
F6206 FM CERAMIC DISCLI. ATF7008
F6601 ANTI BIRDY FILTER ATF7009
F6204 FM CERAMIC FILTER ATF7010

F6202 AM CERAMIC FILTER ATF7011
L6107 CHIP COIL ATH1043
L6603 LAU220J
L6206,L6208,L6605 LAU2R2J

TRANSFORMERS

T6201 ATB7008
T6101 ATE7002

CAPACITORS

C6113,C6212,C6274,C6275,C6611CCSQCH101J50
C6116,C6208,C6221 CCSQCH150J50
C6222 CCSQCH180J50
C6271 CCSQCH200J50
C6117 CCSQCH330J50

C6608 CCSQCH680J50
C6118 CCSQCH8R0D50
C6111,C6122 CCSQCK1R0C50
C6112,C6127 CCSQCK2R0C50
C6105 CCSQSL471J50

C6101 CCSQTH110J50
C6119 CCSQTH150J50
C6109 CCSQTH270J50
C6107,C6110 CCSQTH300J50
C6106 CCSQTH330J50

C6234,C6235 CEAL1R0M50
C6245 CEAL470M16
C6224 CEAS100M50
C6243 CEAS101M16
C6231 CEAS1R0M50

C6227 CEAS220M16
C6236 CEAS2R2M50
C6216 CEAS330M16
C6262 CEAS3R3M50
C6219 CEAS470M10

C6230 CKSQYB821K50
C6218,C6223,C6255 CKSQYF103Z50
C6220,C6226,C6242,C6256 CKSQYF223Z50
C6225 CKSQYF473Z50
C6610 CKSYB103K50

RESISTORS

R6602 RD1/4PU221J
R6115,R6119,R6123,R6127,R6129RS1/8S0R0J
R6906,R6909,R6911 RS1/8S0R0J
R6112 RS1/8S473J
VR6201 (10kΩ) RCP1045

Other Resistors RS1/10S J

OTHERS

BN6202 2P ANTENNA TERMINAL AKA7001
X6202 CERAMIC RESONATORASS1066

X6201 CRYSTAL RESONATORASS1093

CN6201 14P SOCKET KP200IA14L

FM/AM TUNER MODULE (AXQ7065)

AB

(456kHz)
(7.2000MHz)

SEMICONDUCTORS

IC6201 LA1832ML
IC6202 LC72131MD
Q6402 2SC2223
Q6203 2SC2705
Q6201,Q6202 2SC2712

Q6214,Q6403 2SC2714
Q6404 2SK302
Q6401 3SK194
Q6204 DTA124ES
Q6205 DTC124EK

D6202 1SS254
D6401,D6402 1T378A

COILS AND FILTERS

L6404 FM COIL ATC1003
L6401 FM RF COIL ATC1020
L6402 FM RF COIL ATC1021
F6204 FM CERAMIC FILTER ATF-107
F6203 FM CERAMIC FILTER ATF-119

74

F6401 FM BAND PASS FILTER ATF-155
F6206 FM CERAMIC DISCLI. ATF7008
F6202 AM CERAMIC FILTER ATF7011
L6206,L6208,L6403 LAU2R2J

TRANSFORMERS

T6201 ATB7008
T6401 ATE7002

XR-MR7

Mark No. Description Part No.Mark No. Description Part No.

CD-R CORE ASSY

B

SEMICONDUCTORS

IC502 AD1893JST

IC321 BA05FP

IC101 AK8563
IC561 BA7082F

IC303 (BR93LC46F) PYY1196

CAPACITORS

C6208 CCSQCH100D50
C6212,C6274,C6275,C6408 CCSQCH101J50
C6412 CCSQCH102J50
C6221,C6222,C6416 CCSQCH150J50
C6271 CCSQCH200J50

C6415 CCSQCH330J50
C6406 CCSQCH331J50
C6401,C6419 CCSQCH5R0C50
C6407 CCSQCK1R0C50
C6410 CCSQCK2R0C50

C6413 CCSQRH180J50
C6414 CCSQRH8R0D50
C6405 CCSQTH150J50
C6234,C6235 CEAL1R0M50
C6245 CEAL470M16

C6224 CEAT100M50
C6243 CEAT101M16
C6231 CEAT1R0M50
C6227 CEAT220M25
C6214,C6236 CEAT2R2M50

C6262 CEAT3R3M50
C6219 CEAT470M10
C6244 CEAT470M16
C6249,C6250,C6265,C6266 CEAT4R7M50
C6258 CEJA470M16

C6215 CFTLA103J50
C6211,C6254,C6403,C6417 CKSQYB102K50
C6201,C6205,C6210,C6237,C6276CKSQYB103K50
C6278,C6280,C6281,C6402,C6409CKSQYB103K50
C6418 CKSQYB103K50

C6251,C6252 CKSQYB153K50
C6203,C6259 CKSQYB223K50
C6228 CKSQYB472K50
C6209 CKSQYB473K50
C6230 CKSQYB821K50

C6218,C6223,C6255 CKSQYF103Z50
C6220,C6226,C6242,C6256 CKSQYF223Z50
C6225 CKSQYF473Z50

RESISTORS

R6280 RD1/4PU101J
R6413,R6416,R6418,R6906,R6909RS1/8S0R0J
R6401 RS1/8S470J
VR6201 (10kΩ) PCP1029
Other Resistors RS1/10S J

OTHERS

BN6202 4P ANTENNA TERMINAL AKE7051
X6202 CERAMIC RESONATORASS1066

X6201 CRYSTAL RESONATORASS1093

CN6201 14P SOCKET KP200IA14L

(456kHz)
(7.2000MHz)

IC401 CXD2585Q
IC141,IC161,IC255,IC508 HD74HC4053FP
IC371 HD74HC573FP
IC501 LC89585
IC503 LH64256CK-70

IC931 LP2980IM5-5.0

IC451 M56788FP
IC252-IC254 NJM2100M
IC181 NJM2137M
IC304 NJM2904M

IC251 NJU7016M
IC201 PA9007A
IC507 PCX1026
IC351 PDJ014A
IC431 PDK041A

IC301 PE5109A
IC932 PST994C
IC362 TC7S00F
IC363,IC562 TC7S04F
IC305,IC509 TC7S08F

IC361,IC364 TC7S14F
IC302 TK11041M-1
Q102 DTA114TK
Q204,Q401,Q402 DTA124EK
Q551 DTA143EK

Q101,Q142,Q201-Q203 DTC114TK
Q103,Q141,Q301-Q303 DTC124EK
D101,D151,D182,D201,D302 1SS355
D321,D322,D361,D362 1SS355
D102,D181,D202,D251 DA204K

D551 DAN202K
D301 DAP202K
D141,D252,D323 MA704
D204 UDZ3.0B

COILS AND FILTERS

L434,L505 (CHIP COIL) DTL1058
L101,L302,L305-L309 OTL1040
(CHIP SOLID INDUCTOR)
L311-L315,L318,L319 OTL1040
(CHIP SOLID INDUCTOR)

L322-L324,L351,L371 OTL1040
(CHIP SOLID INDUCTOR)
L511-L513,L515-L518,L522 OTL1040
(CHIP SOLID INDUCTOR)
L524,L526(CHIP SOLID INDUCTOR)OTL1040

L568 (CHIP SOLID INDUCTOR) QTL1015
F401,F403,F432,F433 VTF1097
(CHIP SOLID INDUCTOR)
F501-F504,F506-F508,F510 VTF1097
(CHIP SOLID INDUCTOR)

F514,F520,F521,F527 VTF1097
(CHIP SOLID INDUCTOR)
F551,F552,F561 VTF1097
(CHIP SOLID INDUCTOR)

75

XR-MR7

CAPACITORS

C122,C507 CCSQCH100D50
C159,C434,C551,C564 CCSQCH101J50
C508 CCSQCH120J50
C563 CCSQCH160J50
C406 CCSQCH221J50

C107,C404 CCSQCH331J50
C263,C311 CCSQCH470J50
C213,C256,C408 CCSQCH471J50
C418 CCSQCH681J50
C101 CCSQCH6R0D50

C518 CCSQCH820J50
C183,C184 CCSQCJ3R0C50
C480-C482 CCSQSL471J50
C321,C465,C931 CEAL100M50
C121,C126,C327,C401,C409 CEAL101M6R3

C417,C901,C902 CEAL101M6R3
C307 CEAL1R0M50
C216 CEAL2R2M50
C933 CEAL3R3M50
C181,C452,C477,C903 CEAL470M16

C130,C201,C209,C211,C253 CEAL470M6R3
C323,C368,C431,C502,C512 CEAL470M6R3
C515,C520,C553,C559,C566 CEAL470M6R3
C308 CEAL4R7M50
C155,C157,C207,C233 CKSQYB102K50

C257,C403,C407,C501,C517 CKSQYB102K50
C109,C110,C112,C230,C231 CKSQYB103K50
C251,C324,C412,C454-C459 CKSQYB103K50
C470-C473,C505,C510,C558 CKSQYB103K50
C567,C934 CKSQYB103K50

C142,C151,C182,C224-C226 CKSQYB104K25
C361,C364,C453,C476 CKSQYB104K25
C504,C932 CKSQYB104K25
C105,C116,C127,C232,C258 CKSQYB105K10
C514,C557 CKSQYB105K10

C208,C414 CKSQYB152K50
C451 CKSQYB182K50
C156,C203 CKSQYB223K50
C113-C115,C117,C118 CKSQYB224K16
C304,C305,C460,C462 CKSQYB224K16

C212 CKSQYB272K50
C104,C221 CKSQYB331K50
C103 CKSQYB333K50
C131,C215,C227-C229 CKSQYB334K16
C128,C134,C363,C474,C475 CKSQYB471K50

C206,C413 CKSQYB473K25
C102 CKSQYB473K50
C119,C204,C468,C469 CKSQYB681K50
C463,C464 CKSQYB682K50
C205 CKSQYB823K25

C133,C153,C254,C303,C322 CKSQYF103Z50
C362,C416,C433,C519 CKSQYF103Z50
C521,C522,C555,C561,C562 CKSQYF103Z50
C568,C569,C905 CKSQYF103Z50
C106,C108,C111,C120,C123 CKSQYF104Z25

Mark No. Description Part No.Mark No. Description Part No.

C369,C371,C402,C405 CKSQYF104Z25
C410,C411,C415,C432 CKSQYF104Z25
C466,C467,C503,C506,C509 CKSQYF104Z25
C511,C513,C516,C523,C552 CKSQYF104Z25
C554,C560,C565 CKSQYF104Z25

C124,C328,C570,C904 CKSQYF473Z25
C325 (1F/5.5V) VCH1039

RESISTORS

R113,R441,R442,R514 (330Ω) ACN7054
R308,R417 (470Ω) ACN7056
R313 (47kΩ) ACN7077
R401,R416,R433 (100Ω) DCN1092
R507 (220Ω) DCN1093

R181,R371,R372,R501 (10kΩ) DCN1094
R570 (0Ω) DCN1106
R143 (2.2kΩ) PCN1039
VR101,VR161-VR164 (4.7kΩ) VCP1154
VR141 (22kΩ) VCP1158

Other Resistors RS1/10S&&& J

OTHERS

X501 CRYSTAL (16.9344MHz) PSS1008
X301 CERAMIC (32MHz) PSS1023
CN453 KR CONNECTOR B2B-PH-K-S
CN451 KR CONNECTOR 3P B3B-PH-K-S
CN901 KR CONNECTOR S6B-PH-K-S

CN301 15P FFC CONNECTOR VKN1275
CN501 21P FFC CONNECTOR VKN1281
CN101 32P FFC CONNECTOR VKN1463
KN101, KN321, KN501, KN901 VNF1084
EARTH METAL FITTING

SERVO MECHANISM ASSY

C

SEMICONDUCTORS

PC651 NJL5803K-F1

SWITCH

S601 PSG1013

RESISTORS

All Resistors RD1/4PU&&& J

OTHERS

J601 (JUMPER WIRE) D20PWW0305E
CN601 (9P CONNECTOR) S9B-PH-K-S

LOADING A ASSY

D

SWITCH

S501 VSK1011

OTHERS

CN501 (3P CONNECTOR) S3B-PH-K-S

76

C125,C129,C132,C143,C152 CKSQYF104Z25
C154,C158,C161,C202,C210 CKSQYF104Z25
C214,C217,C255,C260-C262 CKSQYF104Z25
C301,C302,C306,C309,C310 CKSQYF104Z25
C312,C313,C326,C365-C367 CKSQYF104Z25

LOADING B ASSY

E

OTHERS

CN551 (2P CONNECTOR) B2B-PH-K-S

MOTOR UNIT

H

SWITCH

S106 DSG1016

OTHERS

6P CABLE HOLDER 51048-0600

LOADING UNIT

G

SWITCHES

S104,S105 ASG7018

OTHERS

4P CABLE HOLDER 51048-0400
J101 2mm JUMPER WIRE 4PD20PDD0420E

J102 2mm JUMPER WIRE 6PD20PDD0615E

SELECT UNIT

F

6P CABLE HOLDER 51048-0600

SWITCHES

S102 ASG7019
S101 ASG7022
S103 DSG1016

OTHERS

4P CABLE HOLDER 51048-0400

AF ASSY

I

SEMICONDUCTORS

IC3151,IC7231 BA4558F-HT
IC5751 BU1923F
IC1101 CXA2570N
IC1201 CXD2587Q
IC3031 LC75396NE

IC1301 M56788FP

IC21 NJM78M56FA

IC3081 M62457AFP
IC7301 PCM1800-1

IC5501 PD5545A
IC7501 PE51113B

IC7401 PE8001A
IC7502 TC7SU04F
IC3101 TC9164AF
IC3131 UPC45702G2

Q4601,Q5751 2SA1037K
Q1101 2SA854S
Q1406 2SB1132
Q1341,Q1345,Q22 2SB1237X
Q1201,Q1405,Q1911,Q5505 2SC2412K

Q1342,Q1346,Q21 2SD1858X
Q1401,Q1402,Q3121,Q3122 2SD2114K
Q7231,Q7232 2SD2114K
Q3141,Q3142 2SK208
Q1901,Q3125,Q3143 DTA124EK

Q3144,Q4602,Q5501,Q5502 DTC124EK
Q7236,Q7237,Q7304,Q7502 DTC124EK
Q7509,Q7510 DTC124TKA
Q1343,Q1344 DTC143EK
D1341,D1342,D1344,D1345 1SS133

D3151,D5501,D21-D23,D5503 1SS133

XR-MR7

Mark No. Description Part No.Mark No. Description Part No.

D5505-D5507,D7231 1SS133
D3152,D3153,D7403,D7404 1SS355
D3101,D7301,D7401 DAN202K
D7302,D7402 DAP202K
D1343,D5504 S5688G

D3102,D7232 UDZS6.2B

COILS

L3101,L3102 ATH-133
L1201,L1231,L1232,L1601,L4601 LAU100J
L5501,L7501 LAU100J
L5751 LAU1R0J
L7301,L7401 LAU220J

L501 VTL1094
L7306,L7451,L7453,L7601 VTL1096
L1602,L7451,L7452 VTL1105

CAPACITORS

C3345,C3346 ACG7041
C5512 (0.047F) ACH1246
C3145,C3146 CCSQCH100D50
C1204,C2551- C2553,C5513- C5517 CCSQCH101J50
C5504,C5533- C5535,C7241,C7242 CCSQCH101J50

C7313,C7409,C7411,C7412,C7515 CCSQCH101J50
C1401,C1402 CCSQCH151J50
C1121 CCSQCH220J50
C1239,C1246,C2103-C2104 CCSQCH221J50
C3070-C3072 CCSQCH221J50

C1247,C1351,C5571 CCSQCH471J50
C5751,C5752 CCSQCH270J50
C5757 CCSQCH271J50
C3101-C3104 CCSQCH331J50
C1247,C1351,C3203- C3206,C5571 CCSQCH471J50

C1403,C1404 CCSQCH681J50
C3065,C3066 CEANL2R2M50
C1324,C21,C2107,C2108 CEAT100M50
C3063,C3151,C2758 CEAT100M50
C1101,C1108, C1233,C1240 CEAT101M10

C1242,C1249,C1411,C1412,C1602 CEAT101M10
C3091,C3143,C3144,C3150,C4602 CEAT101M10
C5507,C5510 CEAT101M10
C3119 CEAT101M25
C7002 CEAT102M16

C3059,C5501,C5519,C5520 CEAT1R0M50
C3067 CEAT220M25
C1352,C3019,C3020,C3031-C3036 CEAT2R2M50
C3039,C3040,C3043,C3045,C3061 CEAT2R2M50
C3073,C3105,C3106,C3117,C3118 CEAT2R2M50

C3126,C3127,C3137,C3138 CEAT2R2M50
C3161,C3162 CEAT2R2M50
C3120,C5754 CEAT330M16
C1343 CEAT331M10
C3131,C3132 CEAT470M10

C3027 CEAT470M16
C22 CEAT470M35
C3139 CEAT470M35
C5620,C5910 CEAT470M50
C1321 CEAT471M6R3

C3041 CEATR10M50
C1238 CEATR47M50
C1405,C1406,C3064,C7231,C7232 CEJA100M50
C7245 CEJA100M50
C7306,C7311,C7402,C7407,C7509 CEJA101M10

77

XR-MR7

C3060,C7301,C7302 CEJA1R0M50
C3069 CEJA220M25
C3999 CEJA220M35
C3037,C3038,C3044,C3046,C3062 CEJA2R2M50
C3074,C7504 CEJA2R2M50

Mark No. Description Part No.Mark No. Description Part No.

CN21 5P JUMPER CON. 52147-0510
CN5501 27P FFC CONNECTOR 9604S-27C
CN3011 4P PIN JACK AKB7015
CN3101 4P SPEAKER TERMINAL AKE7030
CN1901 16P PLUG AKM7049

C7243,C7244 CEJA470M10
C3068,C7233 CEJA470M25
C7303,C7304,C7403,C7404 CEJA4R7M50
C3042 CEJAR10M50
C3051,C3052 CFTLA334J50

C3047,C3048 CFTLA394J50
C3123,C5518,C7003,C7004 CKSQYB102K50
C1105,C1107,C1205,C1234,C1237 CKSQYB103K50
C1241,C1250,C1253,C1322,C1323 CKSQYB103K50
C1325,C1413-C1415,C1603,C5502 CKSQYB103K50

C5511,C5521-C5527,C5529-C5532 CKSQYB103K50
C5537,C5598,C5599,C5753,C5755 CKSQYB103K50
C7451,C7508 CKSQYB103K50
C1109,C1114,C1245,C1276 CKSQYB104K25
C3081,C3082,C3098,C3335-C3340 CKSQYB104K25

C4601,C7506,C7511,C7701 CKSQYB104K25
C3057,C3058 CKSQYB122K50
C1236,C3133,C3134,C7235,C7236 CKSQYB152K50
C7239,C7240 CKSQYB152K50
C1231,C1248 CKSQYB222K50

C3053,C3054,C3084,C3085 CKSQYB273K50
C1319,C1320 CKSQYB333K50
C7307,C7308,C7503 CKSQYB471K50
C3015 CKSQYB473K25
C1235,C3083 CKSQYB473K50

C5756 CKSQYB561K50
C3135,C3136 CKSQYB562K50
C3023,C3024,C3055,C3056 CKSQYB682K50
C1303,C1304,C1307,C1308 CKSQYB821K50
C1311 CKSQYB822K50

C3049,C3050 CKSQYB823K25
C1113,C1305,C3025,C3090,C5503 CKSQYF104Z25
C5505,C5508,C5509,C7305 CKSQYF104Z25
C7309,C7310,C7312,C7401 CKSQYF104Z25
C7405,C7406,C7408,C7410,C7413 CKSQYF104Z25
C2199,C3201 CKSQYF105Z16

RESISTORS

R3333,R3334 RD1/2LMF100J
R7409 RD1/4PU101J
R4610 RD1/4PU102J
R1431,R1432 RD1/4PU220J
R3146 RD1/4PU221J

CN2551 5P SOCKET AKP7042
BZ5501 BUZZER APV7002
CN7703 KR CONNECTOR B6B-PH-K-S
JA4601 OPTICAL RECEIVE MOD.GP1F37R
JA3012 2P PIN JACK RKB1041

JA7601 REMOTE JACK RKN1004
CN521 CONNECTOR TUC-P07P-B1
CN3102,CN6003 CONNECTOR TUC-P18P-B1
CN7702 15P FFC CONNECTOR VKN1191
CN7701 21P FFC CONNECTOR VKN1197

H.P ASSY

P

PCB BINDER VEF1040

CAPACITORS

C3901,C3902 CCSQCH221J50
C3903 CKSQYF104Z25

RESISTORS

R3901,R3902 RS1LMF331J

OTHERS

3902 MINI JACK AKN7020
3901 9P CABLE HOLDER 51048-0900
J3901 9P (2mmP)JUMPER D20PDY0935E

AMP ASSY

J

SEMICONDUCTORS

IC15 (7A) AEK7021
IC5003 NJM7812FA
IC3301 STK407-040B

Q5001 2SD2395

Q301 IRFI9Z34G
Q302 IRFIZ34G

Q304,Q320,Q3608,Q3609 2SA1037K
Q303,Q3605-Q3607,Q3610,Q3611 2SC2412K

Q3301,Q3302 2SD2114K
Q324,Q3303,Q3612 DTA124EK

Q322,Q323 DTC124EK

D307,D308,D322,D3303-D3306 1SS133
D3602,D3604-D36011,D3701-D3705 1SS133
D3707-D3710,D3712,D5003 1SS133
D303,D304 20E2-FC

R7236 RD1/4PU222J
R1331,R1418,R7603 RD1/4PU471J
R7516 RD1/4PU473J
R1319,R1320 RS1/10S1802F
R1317,R1318 RS1/10S4702F

Other Resistors RS1/10S J

OTHERS

X5501 CERAMIC RESONATOR ASS7020
X5751 CRYSTAL RESONATOR ASS7004
X7501 S.C.R (4.19MHz) VSS1014

CN1101 16P FFC CONNECTOR 52030-1610
CN3201 9P FFC CONNECTOR 52044-0945

78

(16MHz)
(4.332MHz)

D301,D302 D3SBA20(B)
D5014 D5SBA20(B)

D309,D310 MTZJ10C
D305,D306 MTZJ18B
D5001,D5006 MTZJ20A

D311,D312 MTZJ27C
D5008 MTZJ5.6B
D5004 MTZJ7.5A

D3301,D3302,D5002,D5005 S5688G

CAPACITORS

C3305,C3317 CCSQCH101J50
C3307,C3308 CCSQCJ3R0C50
C3315,C3316 CEANP220M35
C3319,C3603,C5008 CEAT100M50
C3302,C3304 CEAT101M50

C305,C3313,C3314,C3604,C5007 CEAT1R0M50
C306 CEAT220M50
C3602 CEAT221M16
C301-C304 CEAT222M50
C5001 CEAT330M2A

C5004,C5005 CEAT470M10
C5002 CEAT470M2A
C5018 CEAT471M50
C5009 CEAT472M25
C5010 CKSQYB103K50

C3318 CKSQYB104K25
C3311,C3312 CKSQYB471K50
C3301,C3303,C3306,C6001 CKSQYF104Z50
C6002 CKSQYF105Z16

RESISTOR

R5001 RD1/2VM332J
R301,R302 RD1/4PU101J
R3615 RD1/4PU103J
R3714 RD1/4PU104J
R6002 RD1/4PU473J

R3307,R3308 RD1/4PU563J
R3601,R3602 RS2LMFR22J
Other Resistors RS1/10S J

OTHERS

CN5001 12P JUMPER CON. 52147-1210
CN3101 9P JUMPER CON. 52151-0910

RY3601 SP RELAY /12V ASR7007

CN6001 14P PLAG KM200IA14
CN3002 2mm CONNECTOR TUC-P07X-B1

CN6002 2mm CONNECTOR TUC-P18X-B1
CN3001 2mm CONNECTOR TUC-P18X-B1

PCB BINDER VEF1040

CN11 12P JUMPER CON. KPD12

XR-MR7

Mark No. Description Part No.Mark No. Description Part No.

CAPACITORS

C5006 CEAT102M25
C19 CQMA103J50

OTHERS

1002 12P CABLE HOLDER 51052-1200
J11 2mm12P JUMPER WIR. DXUY1230E

PRIMARY ASSY

T

OTHERS

CN4 2P-VH CONNECTOR B2P3-VH

SUBTRANS ASSY

H3,H4 FUSE CLIP AKR1003

Q

SEMICONDUCTORS

D12 S1WB(A)60SD

D11 1SS133

CAPACITORS

C2 (10000pF/AC250V) ACG7033

C12 CEAT471M16
C11 CEAT471M35

RESISTORS

R24 RD1/4PU224J

OTHERS

T2 SUB TRANSFORMER ATT7064
RY11 RELAY ASR7013

13 5P CABLE HOLDER 51048-0500
J13 2mm 5P JUMPER WIR. D20PDY0535E

PCB BINDER VEF1040

REG ASSY

U

SEMICONDUCTORS

IC501,IC502,IC504,IC505 NJM7805FA
IC503 NJM7806FA
Q501 2SD2395
D512 1S133

D501-D505 MTZJ8.2B
D511 MTZJ9.1C

CAPACITORS

C502,C504,C506,C508 CEAT100M50
C510,C511 CEAT100M50
C501,C503,C505,C507,C509 CEAT1R0M50
C512 CEAT470M50

RESISTORS

Other Resistors RD1/4PU J

OTHERS

501 12P CABLE HOLDER 51048-1200
J501 2mm12P JUMPER WIR. D20PDY1225E

SECONDARY ASSY

S

SEMICONDUCTORS

IC14 (4A) AEK7018
IC18,IC19 (7A) AEK7021

D5009- D5012 S5688G

AC IN/OUT ASSY

R

COIL

L1 ATF–151

CAPACITORS

C1 (10000pF/AC250V) ACG7033

OTHERS

J1 HOUSING WIRE ADX7307
CN2 AC OUTLET AKP1034
CN1 AC INLET AKP1121

DISPLAY ASSY

H1,H2 FUSE CLIP AKR1003

K

SEMICONDUCTORS

IC5801 BU2092F
IC5601 TC7S32F
Q5601 2SB1238X
Q5602 2SC2412K
Q5603 DTC144EK

D5601,D5602,D5901 1SS133
D5801-D5804 SLR-343VC(NPQ)

COILS

L5901 LAU100J

79

XR-MR7

SWITCHES

S5901-S5909,S5914-S5921 ASG7013

CAPACITORS

C5612 CCSQCH101J50
C5928 CCSQCH221J50
C5610 CEAT101M10
C5608 CEAT220M50
C5601 CEAT470M50

C5903,C5904 CEJA220M50
C5901 CEJA470M6R3
C5902 CKSQYB103K50
C5615 CKSQYB104K25
C5616 CKSQYB224K16

C5606,C5609,C5801 CKSQYF104Z25
C5602,C5603,C5607 CKSQYF104Z50

RESISTORS

Other Resistors RS1/10S J

OTHERS

CN5601 27P FFC CONNECTOR 9604S-27F
CN5901 21P FFC CONNECTOR 9607S-21F
V5601 FL TUBE AAV7073
5901 REMOTE RECEIVER UNITGP1U28X

SW JOG ASSY

L

SEMICONDUCTORS

Q5952 DTA114EK
Q5951 DTA143EK
D5951 1SS133
D5953-D5955,D5959,D5960 SLR-343VC(NPQ)

SWITCHES

S5951-S5957, S5959- S5964 ASG7013
S5965 ASX7032
S5966,S5969,S5970 ASX7033

RESISTORS

R5952,R5964 RD1/4PU102J
Other Resistors RS1/10S J

OTHERS

CN5952 5P FCC CONNECTOR 52045-0545
CN5951 21P FF CONNECTOR 9607S-21C
CN5953 4P SOCKET KP200IB4L

CDR LED ASSY

N

SEMICONDUCTORS

D5981,D5982 SLR-343VC(NPQ)

RESISTORS

R5995,R5996 RS1/10S221J

PCB BINDER VEF1040
FL HOLDER VNF1087

Mark No. Description Part No.Mark No. Description Part No.

FRONT LINE ASSY

O

SEMICONDUCTORS

Q3123,Q3124 2SD2114K

COILS

L5401, L5402 LAU100J
L5404- L5409 VTL1096

CAPACITORS

C5401-C5406 CCSQCH221J50
C5409 CEJA101M10
C5413,C5414 CKSQYB102K50
C5407 CKSQYB103K50
C5410- C5412 CKSQYF104Z25

RESISTORS

R3128 RD1/4PU102J
Other Resistors RS1/10S J

OTHERS

CN5403 9P FFC CONNECTOR 52045-0945
5402 MINI JACK AKN-210
5401 MINI JACK AKN7003
JA5403 OPTICAL LINK OUT GP1F32T

CDR SW ASSY

M

SWITCHES

S5991- S5993 ASG7013

RESISTORS

Other Resistors RS1/10S J

OTHERS

CN5954 4P PLUG AKM7028

LEGATO ASSY

V

SEMICONDUCTORS

IC1902 BA4558F-HT
IC1901 PA8001A
D1903,D1904 1SS355
D1901 DAN202K
D1902 DAP202K

D1905 MTZJ6.2B

CAPACITORS

C1905-C1919 CCSQCH101J50
C1901 CKSQCH240J50
C1902 CKSQCH300J50
C1906,C1910,C1926 CEJA100M50
C1903,C1912 CEJA101M10

C1913,C1914 CEJA470M10
C1927 CEJA470M25
C1907,C1908 CEJA4R7M50
C1920,C1921,C1924,C1925 CKSQYB152K50
C1904,C1905,C1909,C1911 CKSQYF104Z25

OTHERS

CN5962 5P FFC CONNECTOR 52045-0545

80

RESISTORS

Other Resistors RS1/10S J

OTHERS

X1901 CERAMIC (16MHz) PSS1008
CN1902 16P SOCKET AKP7122

XR-MR7

6. ADJUSTMENT

6.1 TUNER SECTION

6.1.1 For MY Type
FM Tuner Section

• Set the mode selector to FM BAND.

• Connect the wiring as shown in Fig. 1.

Step

Note:
Before adjusting, make sure there is no gap between L6101 and L6102 as well as between L6103 and L6104. If there is a gap between them,
bring them into contact with each other first, and then make adjustments.

Adjustment

No.

1

2 Stereo Distortion

3

Title

Front End
Sensitivity

TUNED IND.
Lighting Level

FM SG (1kHz, ± 75kHz dev.)

Frequency

(MHz)

106 0 to 30 106MHz

98

(ON STEREO)

98 18 ± 2 98MHz VR6201

Level

(dBµV)

80 98MHz T6101

Reception

Frequency

Display

Adjustment

Location

L6104
L6105
L6102
T6101

Specifications

Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.

Minimize the distortion with 1/8 rotation of the
core.

Adjust so that the indicator of TUNED IND.
starts to light up.

AM Tuner Section

• Set the mode selector to AM BAND.

• Connect the wiring as shown in Fig. 1.

Step

Note (∗1) : For the area using 10kHz step, frequency should be 1000kHz.

No.

1

Adjustment

Title

Front End
Sensitivity

AM SG (400Hz, 30% Mod.)

Frequency

(kHz)

999 (∗1) 35 to 45 999kHz (∗1)

AM SG

MPX SG FM SG

FM75Ω antenna terminal

Level

(dBµV/m)

Center

Fig.1 AM and FM Adjustment Wiring Diagram

FM/AM TUNER MODULE

Reception

Frequency

Display

60cm

Center

Adjustment

Location

T6201

Loop antenna

AM antenna terminal

PRODUCT

Specifications

Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.

DC

Voltmeter

AM
antenna
terminal

FM
antenna
terminal

AXX7042

YELLOW BLACK

L6101

L6102

L6103

L6105

T6101

L6104

Fig.2 Adjustment Point

T6201

Pin 20

IC6201

VR6201

81

XR-MR7

6.1.2 For KU/CA Type
FM Tuner Section

• Set the mode selector to FM BAND.

• Connect the wiring as shown in Fig. 3.

Step

Note:
Before adjusting, make sure there is no gap between L6401 and L6402. If there is a gap between them, bring them into contact with each other
first, and then make adjustments.

No.

Front End

1

Sensitivity
TUNED IND.

2

Lighting Level

Adjustment

Title

FM SG (1kHz, ± 75kHz dev.)

Frequency

(MHz)

98 0 to 30 98MHz

98 18 ± 2 98MHz VR6201

Level

(dBµV)

AM Tuner Section

• Set the mode selector to AM BAND.

• Connect the wiring as shown in Fig. 3.

Step

Note (∗1) : For the area using 10kHz step, frequency should be 1000kHz.

No.

1

Adjustment

Title

Front End
Sensitivity

AM SG (400Hz, 30% Mod.)

Frequency

(kHz)

999 (∗1) 35 to 45 999kHz (∗1)

Level

(dBµV/m)

Reception

Frequency

Display

Reception

Frequency

Display

Adjustment

Location

L6402

T6401

Adjustment

Location

T6201

Specifications

Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.

Adjust so that the indicator of TUNED IND.
strats to light up.

Specifications

Adjust so that the DC voltage between the
IC6201 - pin 20 and GND becomes at maximum
level.

AM
antenna
terminal

FM
antenna
terminal

AM SG

MPX SG FM SG

Center

FM75Ω antenna terminal

Fig.3 AM and FM Adjustment Wiring Diagram

FM/AM TUNER MODULE

SIDE A

YELLOW BLACK

AXX7041

60cm

Center

T6401

Loop antenna

AM antenna terminal

PRODUCT

DC

Voltmeter

T6201

IC6201

Pin 20

VR6201

82

L6401

L6402

Fig.4 Adjustment Point

6.2 CD TEST MODE

NOTE: There is no information to be shown in this CD adjustment.

How to Start/Cancel Test Mode

TEST MODE : ON

Short

AF ASSY

POWER ON

STANDBY/ON

CD1 ' "

' "
' "

NR VOL 0

TEST MODE : PLAY

CD

1 0
2 0
3 0

TEST DISC: YEDS-7

CD SELECT

123

XR-MR7

TEST POINT

Open

DISPLAY

Laser diode: LIGHTS UP
Focus servo: CLOSE

Spindle motor : START
Spindle servo : CLOSE
Tracking servo: CLOSE

TEST MODE : STOP CANCEL

POWER OFF

STOP

STOP all operations.

Test Point

STANDBY/ON

PLAY/
PAUSE

I

CLOSE OPEN

Tracking servo:

AF ASSY

PLAY/
PAUSE

inwards

Pickup Move

Tracking servo:Open

outwards

SIDE B

TEST MODE
SHORT

83

XR-MR7

6.3 CD-R SECTION

6.3.1 DISCS TO BE USED

1. When adjusting the servo system adjustment
CD : Test disc for adjustment (STD-903 or equivalent)

6.3.2 JIGS and MEASURING INSTRUMENTS

(1) Laser Power Meter

Following power meter manufactured by Advantest Corporation or
equivalent :
TQ8210 + TQ82017
TQ8215 + TQ82021
TQ8215 + TQ82010 + TQ82017

LE8010 (by LEADER)
(2) Oscilloscope
(3) CD Jitter Meter
(4) Remote control supplied with XR-MR7 (AXD7242)

(LD service remote control GGF1067)

6.3.3 TEST MODE
7 Test Mode

For adjustment, set the unit to Test mode of CDR.
(1) The product is put into the state of the standby.
(2) Power supply ON is done while Short-Circuited of Test Mode pin.
(3) The finction is mode CDR. (All lighting of FL and LED)
(4) STOP Key is pushed.

In Test mode, the display (FL) on the unit lights as follows.

ANA

If not, turn the power off and repeat the same steps again.

TEST MODE
(SHORT-POINT)

I

AF ASSY

SIDE B

84

TEST MODE

SHORT

Fig 1: Test Point

6.3.4 Operations in Test Mode

Please use the remote control provited with the XR-MR7 (AXD7242 or the LD sevice remote control (GGF1067)
In Test mode, the following adjustment functions are assigned to the buttons, as explained below.

Fig.1 During adjustment of LD power

[" ANA " segment lights this time]

XR-MR7

ERASE Button

CD/CDR/CD-RW : (TV/LDP)

STOP Button

LD OFF : (STOP/OPEN•CLOSE)

INPUT SELECTOR Button

TEST Mode : (DIG/ANA)

[Remote Control Unit ]

Fig.2 During adjustment of servo system

[" DIG " segment lights this time ]

COMPACT DISC RECORDER
REMOTE CONTROL UNIT
CU—PD113

Î

@ STANDBY/ON

FADER

FINALIZE

• ¶

DIGITAL

AUTO/

TRACK NO.

ERASE

SYNCHRO

MANUAL

WRITE

7

83

TIME

114¢

INPUT

SELECTOR

1526374

9

PROGRAM

SKIP PLAY

10/0 >10

CHECK

SKIP ID

SET CLEAR

REPEAT

CLEAR

RANDOM

REC MUTE Button
LD ON2 : (SIDE B)

REC

REC Button
LD ON1: (SIDE A)

Button

Slider : (CHAPTER SKIP 4 , ¢)

8

AXD7242
(The button shown in
corresponds in GGF1067)

FINALIZE Button

Focus In : (REP.A)

ERASE Button

Adjustment vaiue decision : (TV/LDP)

DIGITAL SYNCHROButton

Average : (STILL STEP e )

STOP Button

STOP : (STOP/OPEN • CLOSE)

PAUSE Button

Tracking servo close : (PAUSE)

INPUT SELECTOR Button

Test Mode : (DIG/ANA)

[Remote Control Unit ]

COMPACT DISC RECORDER
REMOTE CONTROL UNIT
CU—PD113

Î

@ STANDBY/ON

FINALIZE

FADER

DIGITAL

SYNCHRO

SELECTOR

PROGRAM

• ¶

AUTO/

TRACK NO.

ERASE

MANUAL

WRITE

7

83

TIME

114¢

INPUT

1526374

9

SKIP PLAY

10/0 >10

CHECK

SKIP ID

SET CLEAR

REPEAT

CLEAR

RANDOM

REC MUTEButton Adjustment
: ( SIDE B)

RECButton Adjustment

REC

: (SIDE A)

AUTO&TRACK Button
Servo adjustment modesw : (CX)

PLAYButton

8

Button

Spindle kick : (PLAY)

Sleder : (CHAPTER SKIP 4, ¢ )

SKIP ID (CLEAR) Button
Adjustmen value initialization : (X3 £ )

SKIP ID (SET) Button
Adjustmen value decision : (TV/LDP)

85

XR-MR7

6.4 ADJUSTMENT 1 (LASER DIODE POWER ADJUSTMENT)

7 List of Adjustment

(1) : 6.4.1 Playback Power Adjustment
(2) : 6.4.2 CD-R Pecord Power Adjustment

(2) : 6.4.3 CD-RW Pecord Power Adjustment
Note : (1) – (3) " ANA " Segment lights this time

ANA

CD-R CORE ASSY

RW ERASE

VR164

VR141

RW BIAS

VR161

RW REC

VR162
R O.D.

VR163

R REC.PW1

VR101

PB. PW

CN102

6

1 : RF
2 : VC
3 : MPP
4 : TE
5 : VC
6 : FE

CD-R overdrive

CD-R record
power

Playback power

Playback CD-R recording

CD-RW erase
power

1

Note 1 : Attach the remote sensor of the laser power meter to a

Note 2 : When adjusting with VRs, first turn them completely

Note 3 : The wave length setting of the lasser power meter is
assumed to be 780 nm.

Fig.5 Output power of the laser diode

point angled away about 10 degrees against the pickup
lens and where the maximum power is detected, so that
there will be no light reflected onto the pickup.

counter-clockwise and then adjust clockwise, so that the
value to be reached is not exceeded.

CD-RW record power

CD-RW bias
power

CD-RW recording

Fig. 4 Adjustment points

6.4.1 Playback Power Adjustment

Test Point

Adjustment Point
Adjustment Value

Pickup objective lens

VR101 (PB. PW)

0.60 mW ± 0.05 mW

DANGER – LASER RADIA TION WHEN OPEN.
AVOID DIRECT EXPOSURE TO BEAM.

[Procedure]

(1) Check that "CD" is displayed on the FL display. If "CD-R" or "CD-RW" is displayed, press the "ERASE" button repeatedly until "CD" is

displayed.
(2) Press the "RECORD" button.
(3) Press the "REC MUTE" button. The LED for confirmation of LD emission will light in red. The LD is emitting in this status.
(4) Turn VR101 clockwise until the adjustment value to be reached is obtained.
(5) Press the "STOP" button to shut off the LD.

86

6.4.2 CD-R Record Power Adjustment

XR-MR7

DANGER – LASER RADIA TION WHEN OPEN.
AVOID DIRECT EXPOSURE TO BEAM.

Test Point

Adjustment Point
Adjustment Value

Pickup objective lens

VR163 (R REC), VR162 (R O.D.)

VR163 : 4.60 mW ± 0.1 mW
VR162 : Addition of 0.1 mW ± 0.01 mW to the adjustment value of VR163

[Procedure]

(1) Turn VR163 and VR162 completely counterclockwise to set their power output to minimum.
(2) Press the "ERASE" button once so that "CD-R" appears on the FL display.

If the indication is "CD" or "CD-RW," press the ERASE button repeatedly until "CD-R" is displayed on the FL display.
(3) Press the "RECORD" button.
(4) Press the "REC MUTE" button. The LED for confirmation of LD emission will light in red. The LD is emitting in this status.

Adjustment of CD-R record power

(5) Turn VR163 clockwise until the adjusted value is 4.60 mW ± 0.1 mW.

Adjustment of CD-R overdrive power

(6) Turn VR162 clockwise until the adjusted value becomes adjustment value at Step 5 above + (0.1 mW ± 0.01 mW).
(7) Press the "STOP" button to shut off the LD.

DANGER – LASER RADIA TION WHEN OPEN.

6.4.3 CD-RW Record Power Adjustment

AVOID DIRECT EXPOSURE TO BEAM.

Test Point

Adjustment Point
Adjustment Value

Pickup objective lens

VR141 (RW BIAS), VR161 (RW REC), VR164 (RW ERASE)

VR141 : 0.40 mW ± 0.05 mW
VR161 : 2.00 mW ± 0.1 mW
VR164 : 5.70 mW ± 0.1 mW

[Procedure]

(1) Turn VR141, VR161 and VR164 completely counterclockwise to set their power output to minimum.
(2) Press the "ERASE" button twice so that "CD-RW" appears on the FL display.

If the indication is "CD" or "CD-R," press the "ERASE" button repeatedly until "CD-RW" appears on the FL display.
(3) Press the RECORD button.
(4) Press the REC MUTE button. The LED for confirmation of LD emission will light in red. The LD is emitting in this status.

Adjustment of BIAS power

(5) Turn VR141 clockwise until the adjusted value is 0.40 mW ± 0.05 mW.

Adjustment of CD-RW record power

(6) Turn VR161 clockwise until the adjusted value is 2.00 mW ± 0.1 mW.

Adjustment of CD-RW erase power

(7) Turn VR164 clockwise until the adjusted value is 5.70 mW ± 0.1 mW.
(8) Press the "STOP" button to shut off the LD.

87

XR-MR7

6.5 ADJUSTMENT 2 (SERVO SYSTEM ADJUSTMENT)

7 List of Adjustment

(4) : 6.5.1 Focus Offset Adjustment
(5) : 6.5.2 M–S Mix Ratio Adjustment
(6) : 6.5.3 Tracking Offset Adjustment

(6) : 6.5.4 Focus Bias Adjustment

For servo adjustment, set the INPUT SELECTOR to OPTICAL.
" DIG " segment lights this time.

INPUT

SELECTOR

OR

DIG / ANA

CD-R CORE ASSY

Use the " REC " button and the " REC MUTE " button to make
the adjustments.

REC MUTEREC

A SIDE B

OR

To register an adjustment, press the " (SKIP ID)SET " button.

SET

SKIP ID

OR

TV / LDP

To reset the adjusted values to the initial settings, press and hold the
" (SKIP ID)CLEAR " button for 4 seconds.

SKIP ID

CLEAR X3 3

(CD-R Remote control)

OR

(LD Service Remote control)

6.5.1 Focus Offset Adjustment

Test Point

Adjustment Point
Adjustment Value

Symptom when out of
adjustment

CN102 - pin 6 (FE)

"RECORD" button and "REC MUTE" button

0 mV ± 10 mV
The model does not focus-in

Fig. 6 Adjustment points

CN102

1 : RF
2 : VC
3 : MPP
4 : TE
5 : VC
6 : FE

6

1

[Procedure]

(1) Press the "AUTO/MANUAL" button until "01 F4" appears on the FL display.
(2) Adjust with the "RECORD" button and the "REC MUTE" button until the value for Pin 6 of CN102 is 0 mV ± 10 mV.
(3) Press the "(SKIP ID)SET" button to register the adjustment.

Once the adjustment is registered with the "SET" button, "D.VOL" on the FL display lights.

FE

VC

10 : 1

10:1 probe

Oscilloscope

88

6.5.2 M-S Mix Ratio Adjustment

XR-MR7

Test Point

Adjustment Point
Adjustment Value

Symptom when out of
adjustment

CN102 - pin 4 (TE) and pin 3 (MPP)

RECORD button and REC MUTE button
Adjust until the value of the output signals from pin 4 (TE) and pin 3 (MPP) of CN102 are the same,

or the differential output of these signals is minimal.
Sound broken, record characteristics deteriorate

Test Disc

STD-903

[Procedure]

(1) Press the "AUTO/MANUAL" button so that "02 F3" appears on the FL display.
(2) Press the "FINALIZE" button for focus-in.
(3) Press the PLAY button for CAV-servo spindle kick (the status where the spindle rotates with the focus servo on and tracking servo off).
(4) Adjust with the "RECORD" button and the "REC MUTE" button until the value to be reached is obtained.
(5) Press the "SET" button to register the adjustment.

Once the adjustment is registered with the "SET" button, "D.VOL" on the FL display will disappear.
(6) Press the "STOP" button to stop the unit.

Note: For adjustment, use the following circuits.

TE

MPP

VC

39kΩ

39kΩ

0.001µF

0.001µF

10 : 1

10 : 1

10:1 probe

CH1

CH2

Oscilloscope

Note: Adjustment must be done around mid-radius on a disc.

6.5.3 Tracking Offset Adjustment

Test Point

Adjustment Point
Adjustment Value

[Procedure]

(1) Press the "AUTO/MANUAL" button so that "03 F6" appears on the FL display.
(2) Adjust with the "RECORD" button and "REC MUTE" button until the above adjustment value to be reached is obtained.
(3) Press the "SET" button to register the adjustment.

Once the adjustment is registered with the "SET" button, "D.VOL" on the FL display will disappear.

TE

VC

Note: Perform the adjustment in Stop mode.
This adjustment is possible with the low-pass filter used in adjustment 5 above attached.

CN102 - pin 4 (TE)

RECORD button and REC MUTE button

0 mV ± 10 mV

10 : 1

10:1 probe

Oscilloscope

89

XR-MR7

6.5.4 Focus Bias Adjustment

Test Point

Adjustment Point
Adjustment Value

Symptom when out of
adjustment

CN102 - pin 1 (RF)

RECORD button and REC MUTE button

Adjust until RF jitter is minimal or that the eye pattern of the RF waveform is most open.
Sound broken, record characteristics deteriorate

Test Disc

STD-903

[Procedure]

(1) Press the "DIGITAL SYNCHRO" button in Stop mode.

Note: Make sure the unit is in Stop mode.
(2) Check that "SYNC" appears on the FL display.
(3) Press the "AUTO/MANUAL" button so that "04 34" appears on the FL display.
(4) Press the "FINALIZE" button for focus-in.
(5) Press the "PLAY" button for CAV-servo spindle kick.
(6) Press the "PAUSE" button to close the tracking servo, then set the unit to Playback mode.
(7) Adjust with the "RECORD" button and "REC MUTE" button until the above adjustment value to be reached is obtained.

Press the "SET" button to register the adjustment. Once the adjustment is registered with the "(SKIP ID)SET" button, "D.VOL" on the FL

display will disappear.
(8) Press the "STOP" button to stop the unit.

RF

VC

10 : 1

10:1 probe

Jitter Meter

or

Oscilloscope

Note: Adjustment must be done around mid-radius on a disc.

90

7. GENERAL INFORMATION

7.1 DIAGNOSIS

7.1.1 DISASSEMBLY

CD CHANGER SECTION

Bonnet Case take off (Screw x7)

1

Tray Open (Changer Section)

2

STANDBY/ON

CD

1

Each connector is removed.(x5)
(When diagnosing, installs.)

7

XR-MR7

Tray Panel CD

4

Hook take off

3

(x 2)

5

Rivet

8

AMP Assy

CN1101

CN3101

10

CN1301

x 2

CN1302

CN5501

AF Assy

Hook take off

11

12

FM/AM
TUNER

x 2

6

Module

Tray

9

REG Assy

x 2

6

x 2

6

AC INOUT Assy

3CD MICROCHANGER MECHA

91

XR-MR7

3CD MICROCHANGER MECHA

SUB Tray

Hook (x2) is removed and the elevator,

1

the elevator cover, the gear shaft,
and the loading gear are removed.
(A sub-tray becomes free.)

(x 3)

2

8

4

Mecha Base

6

5

Hook take off

Main Tray

3

The hook is removed.
( The bottom of a main
tray is lifted.)

7

Clamper Holder

Black

Float Base

10

PICK-UP UNIT

9

Biue

Swing Base

92

7 Attention when 3CD MICROCHANGER MECHA is assembied

Tray installation

1

Not to be caught
to the tray when
the tray is put,
the home lever is
opened.

XR-MR7

The stopper arm is shut.

Gear match of sub-tray

2

The stick of Ø3 (plus driver etc.of #0) is
inserted in the hole of sub-three trays
and main trays and the position of all
trays is arranged.

Extended
Gear B

EV CamgearElevator

When the elevator is installed, Extended Gear B
is turned and the ditch in the elevator and the gear
flange of the EV cam gear are matched.

93

XR-MR7

CD-R SECTION

Bonnet Case is removed. (Screw x7)

1

Tray Open (Changer, CD-R )

2

STANDBY/ON

Tray Panel CD

CD

1

Each connector is removed.

7

(x7)
AF Assy is removed.

9

CN521

CN3101

CN7701

CN3102

8

CN6003

CN7702

CN5501

Tray Panel CD-R

x 2

6

4

4

3

Hook is removed. (x4)

5

Rivet

10

15

x 2

Pla Rivet x2

13

14

x 2

11

Flexible Holder

Shield Case

16

12

A right and left hook is
removed and the front
panel is removed.

15

94

x 2

6

x 2

6

x 2

x 2

6

6

17

CD-R CORE Assy is removed. (Screw x4)

15

CD-R CORE Assy

XR-MR7

CD-R CORE Assy

1 1

Drive
Gear

3

Front Side

Tray

4

CD-R CORE
Assy

5

CN451

CN453

×2

2

6

CN452

DIAGNOSIS OF CD-R CORE ASSY

Bridge

×3

6

CN101

When diagnosing the CD-R CORE Assy, use the following
Flexible Cable and Connector Assys for service.

• Flexible Cable and Connector Assys for service

CN101 ↔ CN1 (Pickup)

1

32P Flexible Cable : PDD1202
CN452 ↔ CN601 (SERVO MECHANISM Assy)

2

Connector Assy (9P) : PG09KK-E35
CN453 ↔ CN551 (LOADING B Assy)

3

Connector Assy (2P) : PG02KK-E35

A

B

C

D

A

D

B

2

3

7

5

×2

CN453

CN452

1

CN101

C

B

CD-R CORE
Assy

Insulation Sheet, etc.

9

Stopper

9

9

Caution :

Do not touch the CD-R CORE Assy to the Under Base.

8

10

Servo Mechanism
Block

95

XR-MR7

7.1.2 SEQUNCE AFTER THE POWER ON

Note 1 : IC No. or P** without name indicate the pin No.

of microcomputer.

"H" = Hi "L " = Low

PE5113 ( CD-R Control IC )

MECAH control IC starts

Is XPFAIL at "H" level ?

Standby states

POWER ON

PB Mute ON.

System bus communication (∗1)
Transfer the system POWER ON.

P57 PBMUTE : "L"

Microcomputer

No

P78 XRST : "H"

P63 xPFAIL

Note ;
∗1 : System bus communication

P65 SCLK
P43 SDATAIN
P42 SDATAOUT
P41 SREQ

∗2 : Starts the FL communication

P17 CDRDISPDATA
P18 CDRDISPCLK
P19 CDRDISPREQ

∗3 : MECAH Control decoder IC

P11 DATA IN
P12 DATA OUT
P13 CLOCK
P3 XFUSE
P64 MREQ
P46 MACK

CD-R does not operate

for an abnormal part CD-R

Yes

DISPLA communication beginning

with system microcomputer

PB MUTE release after System control IC

begins with MECAH control IC two way

communication, and normal
communication is confirmed

There is DISC ?

It is not.

DISC distnction

beginning.

It is.

96

Displays "NO DISC"

at the CDR function.

Displays at "TOTAL" time

at the CDR function.

÷ Initialization sequence at outlet ON of 3CD MICROCHANGER MECHA

XR-MR7

Outlet ON

Each mechanism SW is checked.

A current mechanism position is

confirmed, and to become HOME

position, the mechanism operation

and each mechanism SW check

are repeated.

Initialization end in place where

mechanism becomes HOME position.

MECHA SW

• ESELINIT SW (74pin)

• ESEL SW (77pin)

• EOPEN SW (73pin)

• ECLOSE SW (72pin)

• ECLAMP SW (78pin)

• EHOME SW (79pin)

Mechanism SW logic at HOME position

• ESELINIT SW "L"

• ESEL SW "L"

• EOPEN SW "H"

• ECLOSE SW "L"

• ECLAMP SW "H"

• EHOME SW "L"

÷ Shipping mode sequence at POWER OFF of 3CD MICROCHANGER MECHA

POWER OFF

A present mechanism position is memorized.

The third piece is clamped as

a position of shipping.

After clamping is completed,

the power supply is turned off.

Mechanism SW logic at shipping position

ÅESELINIT SW "H"
ÅESEL SW "L"
ÅEOPEN SW "H"
ÅECLOSE SW "L"
ÅECLAMP SW "L"
ÅEHOME SW "L"

Note:
operates to return to the memorized mechanism
position at the time of the POWER ON.

97

XR-MR7

7.1.3 ERROR CODE (CD-R)

Error Code Display for Service
The XR-MR7 can display the total turn-on time of the laser diode
and error codes for service.
When the STOP key is held down for about 10 seconds in stop
state in CD-R mode, an FL display as shown below is obtained.

Display

Right 2 FL digits : Error code for service

The total turn-on time of the laser diode is displayed in the range

∗∗∗∗ ∗∗

of 0 to 5100.

The error code for service is displayed as a number (ERROR

Error code Number

NUMBER), which follows a message "CHECK DISC" or
"CHECK." For details, see the table below.

Error code table for service

Code Symptom Contents of Error Possible Cause Checkpoints

No operation even when

H0

power is supplied.

(CHECK display)

H1

Pre-recording process does
not complete, and the tray

H2

does not open.
(CHECK display)

Pre-recording process

H5

disabled (CHECK display)

The unit stops during the
tray open/close operation.

L∗

(CHECK display)

The unit stops when PLAY
or REC/PAUSE starts.

E∗

(CHECK display)

The unit does not read the
inserted disc, and stops.

P∗

(CHECK DISC display)

Communication between mechanism
controller and mode controller is not
achieved.

Defective mechanism controller
terminals

Improper input voltage at the
mechanism-control terminals
(pins 22, 23, 24)

Improper IC303 data writing • Defect in IC303 IC303 (PYY1196)

Improper loading

Defective slider

• The pickup cannot be returned to the
specified position.

Defect in spindle

• Disc upside-down.

• Dirty or cracked disc

• Abnormal disc rotation

• No signal obtained from the disc

• Improper soldering

• Pattern short

• Short-circuiting of parts

• Improper power supply

• Defective tray position sensor

• Defective loading motor

• Improper soldering

• Pattern short

• Improper power supply

• Disconnected flexible cable

• Defective drive circuit

• Abnormal power supply

• Abnormal TOC position switch

• Improper soldering

• Defective spindle motor

• Defective spindle drive circuit

• Abnormal FG signals

• Defective WBL circuit

• Defective decoder circuit

• Unable to read ATIP or subcode

• High error rate
∗1 : SERVO MECHANISM Assy

IC301 (PE5109A)
IC351 (PDJ014A)

IC371
(HD74HC573FP)

IC201 (PA9007A)

IC451 (M56788FP)

S601 (PSG1013)
IC451 (M56788FP)
IC401 (CXD2585Q)

∗1

PC651
(NJL5803K-F1)
IC451 (M56788FP)
IC401 (CXD2585Q)

∗1

98

XR-MR7

Code Symptom Contents of Error Possible Cause Checkpoints

• Defective laser diode

• Trouble in RF detection

• Defective RFT RFB circuit

• Recording power is not sufficient.

• Improper soldering, pattern short

• Trouble with power supply

• Unable to read ATIP or subcode

• Defective laser diode

• Defective focus drive circuits

• Defective pickup

• Improper soldering

• Pattern short

• Trouble of power supply
If any hardware trouble occurs before

displaying A∗ or d∗, the unit stops
displaying a code other than these
codes. Therefore, these service
codes are generated only for troubles
with the disc.

IC201 (PA9007A)
IC101 (AK8563)
IC363 (TC7S04F)
IC364 (TC7S14F)

IC451 (M56788FP)
IC401 (CXD2585Q)

The unit stops before it

C∗

enters REC/PAUSE mode.

The unit stops during

F∗

playback or recording.

The unit stops in a

A∗

recording-related operation,
displaying "CHECK DISC."

The unit stops in a recording
related operation, displaying

d∗

"CHECK DISC."
The unit does not read the
inserted disc, and stops.

Defects related to the recording laser
power

• Dirty or cracked disc

• The optimum recording power
cannot be obtained.

• Trouble in RF detection.

Defective pickup

• Unable to focus because of dirt or
crack on the inserted disc.

• Unable to output the proper laser
power

• Unable to focus
Stop during recording

• The unit stops, being obstructed by a
dirt or a crack on the disc.

The indication for * shows themechanism mode listed below.

No. Mechanism Mode No. Mechanism Mode No. Mechanism Mode

0 PLAY 5 SETUP A REC
1 OPEN 6 TOC READ B TOC REC
2 STOP 7 − C OPC
3 − 8 SEARCH D TOC CHECK
4 − 9 REC/PAUSE E PMA, ACTUAL PAUSE REC

• Resetting the error code

To initialize the total turn-on time of the laser diode, hold the "TIME "key down for about 10 seconds in stop state with the INPUT selector
set to analog in Test mode.
The message "CLEAR" is displayed, and the total time is cleared.

99

XR-MR7

7.2 PARTS

7.2.1 IC

• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.

7 PD5545A (AF ASSY : IC5501)

• Pin Function

.oNkraMemaNniPO/InoitcnuFniPevitcA

1NI4BT/1XENA/69PATADLFOtuptuoatadLF
24KLC/0XENA/59PKLCLFO tuptuokcolcLF emitesiR
3NI4BT/1AD/49PTALLFO tuptuohctalLF H
4NI3BT/0AD/39POERETSXTI )"L"evitcA(tupniOERETSRENUT L
53TUOS/NI2BT/29PDENUTXTI )"L"evitcA(tupniDENUTRENUT L
63NIS/NI1BT/19POSQSDCI tupnitib-08QBUS
73KLC/NI0BT/09PKCQSDCO tuodaerOSQSroftuptuokcolC emitesiR
8ETYBSSV
9SSVNCSSV

01NICX/78PKLCSDCO atadlairesSNESehttuognidaerroftuptuokcolC emitesiR
11TUOCX/68PNODLDCO/I)pU-niaG:H,lamroN-niaG:L,FFO:z-iH(lortnocpmaFR
21TESERTESERX
31TUOXTUOX
41SSVSSV
51NIXNIX
61CCVCCV
71IMN/58PCCV
812TNI/48PKLCCAI ).egdegnillaftsalehtmorfsm05tuobarofffotucsirewoP(noitcetederuliafrewoP emitllaF
911TNI/38PNOCOMERI tupnilortnocetomeR L
020TNI/28PROCSI )"H"evitcA(tupni.cnysedocbuS H
12U/NI4AT/18PKLCDDCO tuptuokcolcrefsnartatadlaireS emitesiR
22U/TUO4AT/08PTALXDCO ).egdegnillafehttaatadlairesehthctaL(tuptuohctaL
32NI3AT/77PATADDCO tuptuoatadlaireS
42TUO3AT/67PREZZUBOtuptuorezzuB
52W/NI2AT/57PETUMDCO ETUMENILDC H
62W/TUO2AT/47PECDELOECDEL
72V/NI1AT/2STR/2STC/37PDELREMITO tuptuoDELremiT L
82V/TUO1AT/2KLC/27PREWOPSYSOrewopmetsyS H
92I5BT/NI0AT/LCS/2DXR/17PSNESDCItupniSNES
03TUO0AT/ADS/2DXT/07PTESERDCO )"L"evitcA(7852DXCfotuptuoteseR L
131DXT/76P1DXTO
231DXR/66P1DXDRI
331KLC/56P1KLCI
43KLC/0STC/1STR/1STC/46P1STRO
530DXT/36P1ATADSYSOC.N
63ATADPSIDRDC1ATADRDCI tupniATAD.retupmocorcimedomRDCehthtiwtropnoitacinummocyalpsiD
73KLCPSIDRDC1KCSRDCI tupniKLC.retupmocorcimedomRDCehthtiwtropnoitacinummocyalpsiD
83QERPSIDRDCQERRDCI tupniQER.retupmocorcimedomRDCehthtiwtropnoitacinummocyalpsiD
931LOVD/75P1LOVDI LOVCERlatigidrof1tupnI
042LOVD/65P2LOVDI LOVCERlatigidrof2tupnI
14DLOH/55PTSET
241LOVA/45P1LOVAI LOVCERgolanarof1tupnI
342LOVA/35P2LOVAI LOVCERgolanarof2tupnI emitllaF
44TESERXMOCUEDOMTESERMO retupmocorcimedomRDCehtfolortnocteseR
54ETUMONOHPXETUMHPO lortnocETUMENOHP L
64RW/LRW/05PccV
743SC/74P1EKUMIHSI 1tupninoitanitseD emitllaF
842SC/64P2EKUMIHSI 2tupninoitanitseD
941SC/54PTS4619O4619CTrofEC
050SC/44PECCADO CIknilotagelrofEC H

• System Control Microcomputer

−

−

−

−

−

−

−

−

−

−

DNGottcennoC
DNGottcennoC

tupniteseR L

)zHM61(rotallicsocimarecottcennoC

DNGottcennoC

)zHM61(rotallicsocimarecottcennoC
V5+ottcennoC
V5+ottcennoC

retupmocorcimhsalfehtfosnipgnitirW

)NIEDOM:H(tupniedomtseT

HSALFehtgnitirwroF

100