Pioneer XRA-370 Service manual

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• XR-A670

STEREO CD CASSETTE DECK RECEIVER

XR-A670

XR-A370

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

Type

MYXJ AC220-230V NVXJ AC230V KUCXJ AC120V

XR-A670 XR-A370

Model

Power Requirement

Remarks

ORDER NO.

RRV2188

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

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

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

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

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

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

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

32 47 57

2 4

7. GENERAL INFORMATION

7.1 DIAGNOSIS

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

7.1.1 DISASSEMBLY

7.2 PARTS

7.2.1 IC

7.2.2 DISPLAY

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

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

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

8. PANEL FACILITIES AND SPECIFICATIONS

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

67 67

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

67 70 70 72

.......

74

T – IZK SEPT. 1999 Printed in Japan

XR-A670, XR-A370

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-A670, XR-A370

IMPORTANT THIS PIONEER APPARATUS CONTAINS LASER OF CLASS 1. SERVICING OPERATION OF THE APPARATUS SHOULD BE DONE BY A SPECIALLY INSTRUCTED PERSON.

LASER DIODE CHARACTERISTICS MAXIMUM OUTPUT POWER: 5 mW WAVELENGTH: 780 nm to 785 nm

LABEL CHECK (For MYXJ and NVXJ Types)

NVXJ Type

MYXJ Type

Printed on the Rear Panel

MYXJ Type

Additional Laser Caution

1.Laser Interlock Mechanism The position of the switch (S9501) for detecting loading state is detected by the system microprocessor, and the design prevents laser diode oscillation when the switch (S9501) is pressed physically. Thus, the interlock will no longer function if the switch (S9501) is released physically and deliberatery.

The interlock also does not function in the test mode ∗. Laser diode oscillation will continue, if pin 1 of CXA1821M (IC8101) on the CD ASSY mounted on the $M Loading Mechanism assembly is connected to GND, or else the terminals of Q8101 are shorted to each other (fault condition).

2.When the cover is opened, close viewing of the objective lens with the naked eye will cause exposure to a Class 1 laser beam.

∗

: Refer to page 66.

3

XR-A670, XR-A370

2. EXPLODED VIEWS AND PARTS LIST

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

2.1 PACKING

4

S L E E P

.B

POWER

A

S

S D I S P L

A Y

A

U X

Except NVXJ Type

3

6

11

13

14

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.

•

V

K

O

A

L

R A O K

E

S

D

F

IS

C

P

D

C

IS

L

C

E A R

D

P

IS

G

C

M

R E P E A T

R A N

D O M

STATION

R E

M O T E C O

N T

M

R

O

L

N

U

O

N IT C

U

B

-X

A N

R

0

D

2 5

9(1/2)

1

5

12

17

18

1

2

16

8(1/2)

NVXJ Type Only

9(2/2)

7

8(2/2)

(1) PACKING PARTS LIST

Mark No. Description Part No.

1 Power Cord See Contrast table (2)

2 FM Antenna See Contrast table (2) 3 AM Loop Antenna XTB3001 4 Remote Control Unit XZN3067

(CU-XR060)

5 Battery Cover XZN3065

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

7 Packing Sheet AHG7049 8 Front Pad XHA3013 9 Rear Pad XHA3014

10 Packing Case See Contrast table (2)

NSP 11 Warranty Card See Contrast table (2)

12 Polyethylene Bag Z21-038

(0.03 × 230 × 340)

13 Operating Instructions See Contrast table (2)

(English/French)

14 Operating Instructions See Contrast table (2)

(Italian/Dutch/German)

15 Operating Instructions See Contrast table (2)

(Portuguese/Swedish/Spanish)

16 Sub Pad XHA3017

15

10

NSP 18 Polyethylene Bag See Contrast table (2)

XR-A670/MYXJ and XR-A370/MYXJ Only

(2) CONTRAST TABLE

XR-A670/MYXJ, NVXJ, KUCXJ, XR-A370/MYXJ, NVXJ and KUCXJ are constructed the same except for the following :

Part No.

17 Fuse (T5A) See Contrast table (2)

Mark No. Symbol and Description

1

Power Cord

2

FM Antenna

10

NSP

Packing Case

11

Warranty Card

13

Operating Instructions (English/French)

14

Operating Instructions (Italian/Dutch/German)

15

Operating Instructions (Portuguese/Swedish/Spanish)

17

Fuse (T5A)

18

Polyethylene Bag

XR-A670

/MYXJ

ADG1154 ADH7005 XHD3090 ARY7022 XRE3023

XRC3014 XRC3015

Not used Not used

XR-A670

/NVXJ

ADG1156 ADH7005 XHD3090 ARY7022 XRE3023

Not used

Not used AEK7001 AHG7033

XR-A670

/KUCXJ

ADG7022 ADH7004 XHD3091 ARY7033 XRE3024

Not used Not used Not used Not used

XR-A370

/MYXJ

ADG1154 ADH7005 XHD3081 ARY7022 XRE3023

XRC3014 XRC3015

Not used Not used

XR-A370

/NVXJ

ADG1156 ADH7005 XHD3081 ARY7022 XRE3023

Not used

Not used AEK7001 AHG7033

XR-A370

/KUCXJ

ADG7022 ADH7004 XHD3082 ARY7033 XRE3024

Not used Not used Not used Not used

Remarks

4

B

C

D

A

B

C D

E

F

Refer to "2.3 FRONT PANEL SECTION".

Refer to "2.4 $M MECHANISM CD-2".

6

30

21

2

7

4

51

50

51

54

8

25

53

28

26

31

20

46

14

18

17

16

15

3

11

35

5

1

48

49

55

37

38 or 44

55

49

48

49

41 40

42

45

KUCXJ Type Only

Except NVXJ Type

XR-A670 Only

KUCXJ Type Only

Except KUCXJ Type

MYXJ Type Only

24

29

52

47

27

9

32

12

43

13

33

34

36

22

23

19

39

56

50

56

50

57

Note : Attatch on the same numbers × three.

Note : Hook Tray cap on top of loading tray and then insert the bottom three hooks.

10

52

2.2 EXTERIOR SECTION

XR-A670, XR-A370

5

XR-A670, XR-A370

(1) EXTERIOR SECTION PARTS LIST

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

1 AF Assy See Contrast table (2) 2 PRIMARY Assy See Contrast table (2) 3 SUB TRANS Assy See Contrast table (2) 4 SECONDARY Assy See Contrast table (2) 5 FM/AM TUNER Module See Contrast table (2)

NSP 6 $M Mechanism CD-2 See Contrast table (2) 7 Power Transformer See Contrast table (2) 8 Fuse (FU1) See Contrast table (2) NSP 9 Fuse Caution Label See Contrast table (2)

10 Card Spacer XEC3008 11 Card Spacer XEC3011

12 25P 120 Flexible Cable/60V XDD3034

(AF CN5101 ↔ DISPLAY CN5503)

13 19P 190 Flexible Cable/30V XDD3038

(CD CN8201 ↔ DISPLAY CN5501)

14 08P 230 Flexible Cable/30V XDD3039

(AF CN1052 ↔ CD CN8204)

15 Connector Assy 5P See Contrast table (2)

(AF CN2301, CN2302 ↔ DECK)

16 Connector Assy 3P XDE3021

(AF CN2303 ↔ DECK)

17 Connector Assy 3P See Contrast table (2)

(AF CN2301 ↔ DECK)

18 Connector Assy 2P See Contrast table (2)

(AF CN2302 ↔ DECK)

NSP 19 Chassis XNA3004

20 Rear Panel See Contrast table (2) 21 Bonnet Case See Contrast table (2) 22 Tray Cap See Contrast table (2) 23 Pioneer Badge XAM3001 24 Heat Sink See Contrast table (2)

25 PCB Bracket XMR3007 26 Earth Plate See Contrast table (2) 27 Shield Plate XNG3017 28 Wire Clip A XEC3003 29 Sub Heat Sink B XNH3012

30 Disc Label XAX3127 31 Ceramic Capacitor See Contrast table (2)

32 Cord Clamper RNH-184 NSP 33 Support Assy XWZ3205 NSP 34 Cable Holder XWZ3206

NSP 35 Fuse Card See Contrast table (2)

36 Binder ZCA-SKB90BK

37 Caution Label HE See Contrast table (2)

38 Caution Label See Contrast table (2)

39 Cushion Leg B XEB3009

40 ICP Label See Contrast table (2)

41 ICP Label See Contrast table (2)

42 ICP Label See Contrast table (2) NSP 43 Getter See Contrast table (2)

44 Caution Label See Contrast table (2)

45 65 Label See Contrast table (2) NSP 46 Sub Heat Sink A XNH3011 NSP 47 FET Bracket XNG3016

48 Screw BPZ30P080FZK

49 Screw VBT30P080FZK

50 Screw BBZ30P060FMC

51 Screw BBZ30P080FMC

52 Screw BBZ30P180FMC

53 Screw BPZ30P080FMC

54 Screw ASZ40P060FMC

55 Screw BPZ30P100FZK

56 Cushion Leg A XEB3008

57 Leg XMR3012

6

XR-A670, XR-A370

(2) CONTRAST TABLE

XR-A670/MYXJ, NVXJ, KUCXJ, XR-A370/MYXJ, NVXJ and KUCXJ are constructed the same except for the following :

Part No.

Mark No. Symbol and Description

1

AF Assy

2

PRIMARY Assy

3

SUB TRANS Assy

4

SECONDARY Assy

5

FM/AM TUNER Module

XR-A670

/MYXJ

XWZ3200 XWZ3213 XWZ3208 XWZ3221 AXQ7068

XR-A670

/NVXJ

XWZ3200 XWZ3213 XWZ3208 XWZ3221 AXQ7068

XR-A670

/KUCXJ

XWZ3199 XWZ3224 XWZ3227 XWZ3221 AXQ7065

XR-A370

/MYXJ

XWZ3197 XWZ3225 XWZ3228 XWZ3220 AXQ7068

XR-A370

/NVXJ

XWZ3197 XWZ3225 XWZ3228 XWZ3220 AXQ7068

XR-A370

/KUCXJ

XWZ3196 XWZ3224 XWZ3227 XWZ3220 AXQ7065

Remarks

NSP

6

$M Mechanism CD-2

7

Power Transformer

8

Fuse (FU1 : T5A)

8

Fuse (FU1 : 5A)

8

Fuse (FU1 : 6.3A)

8

Fuse (FU1 : T4A)

9

Fuse Caution Label

15

Connector Assy 5P

17

Connector Assy 3P

18

Connector Assy 2P

20

Rear Panel

21

Bonnet Case

22

Tray Cap

24

Heat Sink

26

Earth Plate

31

Ceramic Capacitor

35

Fuse Card

37

Caution Label HE

38

Caution Label

40

ICP Label

41

ICP Label

42

ICP Label

43

Getter

44

Caution Label

45

65 Label

XXA3012 XTS3031 AEK1061

Not used Not used

XDE3020

Not used Not used

XNC3039

XZN3098

XAK3091 XNH3010 XNG3015

CKPUYB102K50

AAX7098

PRW1233 VRW1094

XAX3121

XAX3153

XAX3158

XAX3142

Not used Not used

XXA3012 XTS3031 AEK1061

Not used Not used

XDE3020

Not used Not used

XNC3039

XZN3098

XAK3091 XNH3010 XNG3015

CKPUYB102K50

Not used Not used Not used

XAX3121

XAX3153

XAX3158

XAX3142

PRW1018

Not used

XXA3012 XTS3032 Not used Not used

REK1085

Not used XAX3157

XDE3020

Not used Not used

XNC3040

XZN3098 XAK3091

XNH3010

Not used Not used

AAX2374 Not used Not used XAX3121

XAX3153 XAX3158 XAX3143 Not used

ORW1069

XXA3009 XTS3016 Not used Not used Not used

AEK1060 Not used

XDE3020

Not used Not used

XNC3034

XZN3097

XAK3085 XNH3009 XNG3015

CKPUYB102K50

Not used

PRW1233 VRW1094

Not used

XAX3137

Not used

XXA3009 XTS3016

Not used Not used Not used

AEK1060

Not used

XDE3020

Not used Not used

XNC3034

XZN3097

XAK3085 XNH3009 XNG3015

CKPUYB102K50

Not used Not used Not used Not used

Not used Not used

XAX3137 PRW1018

Not used

XXA3009

XTS3017 Not used

REK1083

Not used Not used

XAX3122

Not used XDE3022 XDE3023

XNC3035 XZN3098 XAK3091 XNH3009

Not used

Not used AAX7097

Not used

Not used XAX3138

Not used

ORW1069

7

XR-A670, XR-A370

2.3 FRONT PANEL SECTION

32

17

30

11

15

31

24

25

18

13

38

4

9

6

10

14

XR-A670 Only

22

20

23

27

5

38

3

6

26

35 or 36

38

16 or 34

A

38

A

38

1

38

19

7

28

29

33

12

21

8

37

2 Refer to

"2.6 MECHANISM UNIT".

38

8

XR-A670, XR-A370

(1) FRONT PANEL SECTION PARTS LIST

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

1 DISPLAY Assy See Contrast table (2) 2 Mechanism Unit See Contrast table (2) 3 Earth Plate B XNG3023 4 Ratch Spring_L ABH7130 5 Ratch Spring_R ABH7131

6 Damper Assy AXA7052 7 Door Spring_L XBH3001 8 Door Spring_R XBH3002 9 Ratch Mold_L XMR3001

10 Ratch Mold_R XMR3002 11 Volume Knob See Contrast table (2)

12 JOG Knob See Contrast table (2) 13 V Button A See Contrast table (2) 14 V Button B See Contrast table (2) 15 FL Filter XAK3089

16 LT Conductor See Contrast table (2) 17 Display Panel See Contrast table (2) 18 V Lens XAK3117 19 FL Cover See Contrast table (2) 20 LED Cover See Contrast table (2)

21 Front Panel See Contrast table (2) 22 Function Button A XZN3087 23 S.C. Button XZN3080 24 POWER Button See Contrast table (2) 25 CD Button XZN3079

26 Function Button B XZN3102 27 JOG Lens XZN3082 28 Deck Lens L XZN3077 29 Deck Lens R XZN3078 30 Sub Panel XZN3093

31 ST Lens XZN3101 32 Deck Door_L See Contrast table (2) 33 Deck Door_R See Contrast table (2) 34 V Cap See Contrast table (2) 35 17P 180 Flexible Cable/60V See Contrast table (2)

(DISPLAY CN2903 ↔ DECK CN2905)

36 15P 180 Flexible Cable/60V See Contrast table (2)

(DISPLAY CN2903 ↔ DECK CN2905) 37 Cushion Leg A XEB3008 38 Screw BPZ30P080FMC

(2) CONTRAST TABLE

XR-A670/MYXJ, NVXJ, KUCXJ, XR-A370/MYXJ, NVXJ and KUCXJ are constructed the same except for the following :

Part No.

Mark No. Symbol and Description

1

DISPLAY Assy

2

Mechanism Unit

11

Volume Knob

12

JOG Knob

13

V Button A

XR-A670

/MYXJ

XWZ3215 XYM3010

XAA3013 XAA3014

XAD3034

XR-A670

/NVXJ

XWZ3215 XYM3010

XAA3013 XAA3014

XAD3034

XR-A670

/KUCXJ

XWZ3214 XYM3010

XAA3013 XAA3014

XAD3034

XR-A370

/MYXJ

XWZ3210 XYM3010

XAA3011 XAA3012

XAD3025

XR-A370

/NVXJ

XWZ3210 XYM3010

XAA3011 XAA3012 XAD3025

XR-A370

/KUCXJ

XWZ3209 XYM3008 XAA3013 XAA3014 XAD3034

Remarks

14

V Button B

16

LT Conductor

17

Display Panel

19

FL Cover

20

LED Cover

21

Front Panel

24

POWER Button

30

Sub Panel

32

Deck Door_L

33

Deck Door_R

34

V Cap

35

17P 180 Flexible Cable/60V

36

15P 180 Flexible Cable/60V

XAD3039

XAK3090 XAK3112 XAK3124

XMR3009 XMB3023

XAD3027

XAK3105 XAN3015 XAN3016

Not used

XDD3032

Not used

XAD3039

XAK3090 XAK3112 XAK3124

XMR3009 XMB3023

XAD3027

XAK3105 XAN3015 XAN3016

Not used

XDD3032

Not used

XAD3039

XAK3090 XAK3113 XAK3088

XMR3009 XMB3023

XAD3033

XAK3106 XAN3015 XAN3016

Not used XDD3032

Not used

XAD3038

Not used XAK3078 XAK3124 Not used

XMB3022 XAD3022

XAK3079 XAN3013 XAN3014

XAK3083 XDD3032

Not used

XAD3038

Not used XAK3078 XAK3124

Not used

XMB3022

XAD3022 XAK3079 XAN3013 XAN3014

XAK3083

XDD3032

Not used

XAD3039

Not used XAK3108 XAK3088

Not used XMB3023

XAD3027 XAK3080 XAN3019 XAN3016

XAK3083

Not used XDD3033

9

XR-A670, XR-A370

2.4 $M MECHANISM CD-2

12

29

26

8

7

A

14

13

2

15

19

29

18

6

21

C

27

Refer to "2.5 SERVO MECHANISM ASSY".

25

22

D

24

23

11

1

5

28

29

10

30

32

29

16

29

17

29

D

B

A

9

B

4

C

31

3

20

10

29

(1) $M MECHANISM CD-2 PARTS LIST

(2) CONTRAST TABLE

$M Mechanism CD-2 (XXA3012) and (XXA3009) are constructed the same except for the following :

Mark No. Symbol and Description

Part No.

Remarks

XXA3012 (XR-A670) XXA3009 (XR-A370)

3 CD Assy XWZ3233 XWZ3229

XR-A670, XR-A370

Mark No. Description Part No.

1 MOTOR Assy XWZ3230 2 SW Assy XWZ3231 3 CD Assy See Contrast table (2) 4 TRADE Assy XWZ3232 5 Servo Spring ABH7126

6 Belt AEB7072 7 Clamp Magnet AMF7001 8 Yoke ANB7216 9 Mecha Base XNW3011

10 Loading Tray XNW3002 11 Traverse Base XNW3006

12 Rotary Tray ANW7124 13 Clamper XNW3007 14 Clamper Holder XNW3004 15 Main Cam ANW7093

Mark No. Description Part No.

16 Gear Pulley ANW7094 17 Lock Lever ANW7095 18 Planet Gear ANW7096 19 Actuator ANW7097 20 Mini Card Spacer AEC7143

21 16P 200 Flexible Cable/60V XDD3036 22 Connector Assy (6P) ADE7010 23 Float Rubber A AEB7063 24 Float Rubber B AEB7066 25 Servo Mechanism Assy XXA3010

26 Screw IPZ30P080FMC 27 Carriage Motor VXM1033 28 Motor Pulley PNW1634 29 Ha Narl GEM1016 30 Cushion Rubber XEB3005

31 11P 185 Flexible Cable/30V XDD3037 32 Cushion Rubber XEB3007

2.5 SERVO MECHANISM ASSY

No supplied part

4

1

14

9

5

SERVO MECHANISM ASSY PARTS LIST

•

Mark No. Description Part No.

NSP 1 Motor Chassis Assy • • • • •

NSP 5 Screw +P2*3 • • • • •

3

2

2 Motor Gear Assy X-2625-769-(1) 3 Sled Shaft 2-626-908-(01) 4 Gear (A)(S) 2-625-188-(02)

6 Leaf Switch 1-572-085-(11) 7 Motor(6p)(S)PCB 1-639-678-(12) 8 Connector Pin 6p 1-564-722-(11) 9 Gear(B)(RP) 2-627-003-(01)

10 • • • • • 11 • • • • •

12 • • • • • 13 • • • • • 14 KSS-213C(Pick-up) 8-848-483-(05)

6

8

7

11

XR-A670, XR-A370

2.6 MECHANISM UNIT

Mech. Ι Only

Mech. Ι

Mech. ΙΙ

4

Only

Mech. ΙΙ Only

7

2

12

Mech. ΙΙ

13

Mech. ΙΙ

9

Mech. ΙΙ Only

10

1

2

Mech. Ι

12

XR-A670, XR-A370

5

8

11

6

MECHANISM UNIT PARTS LIST

•

(XYM3010)

Mark No. Description Part No.

1 Plate HD BLK (Mech. ΙΙ) F513-847 2 Plate HD BLK (Mech. Ι) F513-846 3 Motor Main BLK (Mech. ΙΙ only) F525-329 4 PCB Control BLK F567-630 5 Clutch Assy BLK F522-049

6 Main Belt FF19N-11 7 Joint Belt 113 (Mech. ΙΙ only) FF19P-11 8 Clutch Assy BLK (Mech. Ι) FR25B-11 8 Clutch Assy BLK (Mech. ΙΙ) FR24Y-11 9 Roller Pinch BLK R F514-129

10 Roller Pinch BLK L F514-130 11 F/R Belt FF19S-11 12 Plate Base BLK F512-127 13 Plate Base BLK F512-128

MECHANISM UNIT PARTS LIST

•

(XYM3008 : XR-A370/KUCXJ)

Mark No. Description Part No.

1 Plate HD BLK (Mech. ΙΙ) F513-848 2 Plate HD BLK (Mech. Ι) F513-846 3 Motor Main BLK (Mech. ΙΙ only) F525-329 4 PCB Control BLK F567-631 5 Clutch Assy BLK F522-049

6 Main Belt FF19N-11 7 Joint Belt 113 (Mech. ΙΙ only) F19N-11 8 Clutch Assy BLK (Mech. Ι) FR25B-11 8 Clutch Assy BLK (Mech. ΙΙ) FR24Y-11 9 Roller Pinch BLK R (Mech. ΙΙ) F514-131

10 Roller Pinch BLK L (Mech. ΙΙ) F514-130 11 F/R Belt FF19S-11 12 Plate Base BLK F512-127 13 Plate Base BLK F512-128

13

1

23

XR-A670, XR-A370

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM and OVERALL WIRING DIAGRAM

4

V5621

A

J

DISPLAY ASSY (XR-A670/MYXJ, NVXJ : XWZ3215) (XR-A670/KUCXJ : XWZ3214) (XR-A370/MYXJ, NVXJ : XWZ3210)

PDC057A

System Control

(XR-A370/KUCXJ : XWZ3209)

B

IC3001

LC75394NED

17

E-VOL IC

58 55

AA

33

16

21

FL TUBE

29

IC5501

81 82

83

84

IC3101

BA4558F-HT

62 71 1014

AMP

S5951

S5952

STK407-100B (XR-A670) STK407-070B (XR-A370)

5901

SR

IC3301

Power AMP

67

FM/AM TUNER MODULE (MYXJ, NVXJ : AXQ7068)

IC3501, IC3502

BA4558F-HT

AB

FM/AM TUNER MODULE

Godzilla Amp

3517

(KUCXJ : AXQ7065)

CN6201

MYXJ, NVXJ TYPES

C

ONLY

IC5751

BU1923F

RDS IC

4

16

F

AF ASSY

F 1/3- F 3/3

(XR-A670/MYXJ, NVXJ : XWZ3200)

JA3001

(XR-A670/KUCXJ : XWZ3199) (XR-A370/MYXJ, NVXJ : XWZ3197) (XR-A370/KUCXJ : XWZ3196)

B

CD ASSY

IC8201

CXD2587Q

DIGITAL

SERVO

D

IC8101

CXA1821M

RF AMP

IC8301

BA5970FP

DRIVER

XR-A670 ONLY

SERVO MECHANISM ASSY (XXA3010)

TRADE ASSY

E

14

1234

(XWZ3232)

(XR-A670 : XWZ3233)

JA8651

(XR-A370 : XWZ3229)

D

SW ASSY (XWZ3231)

C

MOTOR ASSY (XWZ3230)

5

678

XR-A670, XR-A370

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

A

CN3331

JA3441

CN3991

SUPPORT ASSY

CN11

G

SECONDARY ASSY (XR-A670 : XWZ3221) (XR-A370 : XWZ3220)

EXCEPT XR-A370 /KUCXJ

J81

16

Dolby IC

1

IC2201

HA12136AF

XR-A670 ONLY

IC2301

HA12211NT

89

CABLE HOLDER ASSY

T1 POWER TRANSFORMER (XR-A670/MYXJ, NVXJ : XTS3031) (XR-A670/KUCXJ : XTS3032) (XR-A370/MYXJ, NVXJ : XTS3016) (XR-A370/KUCXJ : XTS3017)

H

PRIMARY ASSY (XR-A670/MYXJ, NVXJ : XWZ3213) (XR-A670/KUCXJ, XR-A370/KUCXJ : XWZ3224) (XR-A370/MYXJ, NVXJ : XWZ3225)

2627

2 8

REC PB IC

B

C

CN81

SUB TRANS ASSY

I

(XR-A670/MYXJ, NVXJ : XWZ3208) (XR-A670/KUCXJ, XR-A370/KUCXJ : XWZ3227) (XR-A370/MYXJ, NVXJ : XWZ3228)

IC81

NJM7805FA

5

RY81

Q81

6

MYXJ, NVXJ TYPES ONLY

L1

T2

KUCXJ TYPE ONLY

FU1

AN1

MYXJ, NVXJ : 50/60Hz AC220-230V KUCXJ : 60Hz AC120V

D

AC POWER CORD MYXJ : ADG1154 NVXJ : ADG1156 KUCXJ : ADG7022

15

7

8

1

23

XR-A670, XR-A370

3.2 FM/AM TUNER MODULE (For MYXJ and NVXJ Types)

A

MIX AMP

RF AMP

OSC

B

4

BUFFER

IF AMP

FM +B SW

C

AM RF TUNING BLOCK

D

16

AA

1234

PLL

5

678

XR-A670, XR-A370

A

FM/AM TUNER MODULE

AA

(AXQ7068)

B

AF AMP

REGULATOR

CN3051

2/3

F

AF AMP

CN6201

KP200IA14L

C

D

AA

5

6

7

8

17

1

23

XR-A670, XR-A370

3.3 FM/AM TUNER MODULE (For KUCXJ Type)

4

A

B

RF AMP

1T378A

OSC

1T378A

MIX AMP

BUFFER

IF AMP

FM +B SW

C

MW RF TUNING BLOCK AKX7041

D

18

AB

1234

5

678

XR-A670, XR-A370

FM/AM TUNER MODULE

AB

(AXQ7065)

AF AMP

A

B

CN3051

2/3F

AF AMP

PLL

REGULATOR

CN6201

KP200IA14L

C

D

AB

5

6

7

8

19

1

23

XR-A670, XR-A370

3.4 CD, MOTOR, SW and TRADE ASSYS

4

A

CD ASSY (XR-A670 : XWZ3233)

B

(XR-A370 : XWZ3229)

TRADE

E

B

SERVO MECHANISM ASSY

SW ASSY

D

ASSY (XWZ3232)

CN9001

(S)

S6B-PH-K-S

(S) (C) (C)

(S)

(F)

(T)

(S)

(C) (C)

(S)

(S)(S)

(C)

(S)

(S) (C)

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

(F)

(XWZ3231)

J9501

D20PWY0610E

(C)(L)

(L)

(L) (L) (C) (L)

(C)

(L)

(C)

(F)

CN9002

C

(L)

J9502

D20PWW0405E

CN9501

52147-0610

SLW11R-1C7

CN8002

SLW11R-1C7

(T)

C

CARRIAGE

S9503

VXM1033

D

SERVO MECHANISM ASSY

CN8101

SLW16R-1C7

20

B C D E

1234

MOTOR

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

ASSY (XWZ3230)

(CD)

(F)

(T)

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

MOTOR

(F)

(T)

(CD)(CD)

2

1

5

678

XR-A670, XR-A370

: The power supply is shown with the marked box.

(CD)

: CD AUDIO SIGNAL ROUTE

(F)

: FOCUS SERVO LOOP LINE

(T)

: TRACKING SERVO LOOP LINE

(S)

: SPINDLE MOTOR ROUTE

(C)

: CARRIAGE MOTOR ROUTE

(L)

: LOADING MOTOR ROUTE

CN8204

52044-0845

A

CN1052

(CD)

2/3

F

(CD)

(S) (C)

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

(F)

(T)

(CD)

(CD)(CD)

CN8201

52045-1945

B

CN5501

J

(CD)

(L) (L)

XR-A670

(T)

(CD)(CD)(CD)

ONLY

(L)

C

XR-A670

(L) (L)

ONLY

(CD)

(L)

Note: The encircled numbers denote measuring point in the

(L) (L)

5

6

schematic diagram.

CN8203- Pin 1 :

1

PLAY MODE (RF)

H : 500nsec/div

7

1.8Vp-p

VREF

IC8101- Pin 13 :

2

TEST MODE, Tracking Open(TRER)

H : 5msec/div

1.0Vp-p VREF

B

8

D

21

1

XR-A670, XR-A370

3.5 AF ASSY (1/3)

23

4

F 1/3

A

B

AF ASSY (XR-A670/MYXJ, NVXJ : XWZ3200) (XR-A670/KUCXJ : XWZ3199) (XR-A370/MYXJ, NVXJ : XWZ3197) (XR-A370/KUCXJ : XWZ3196)

R2311, R2312 : 22k (XR-A670) 39k (XR-A370)

XR-A670 ONLY

(REC)

XR-A370 ONLY

XR-A670 ONLY

(REC)

(PB)

: DECK PB SIGNAL ROUTE

(REC)

: DECK REC SIGNAL ROUTE

–3.7XR-A670

(PB) (PB)

(PB)

XR-A370 ONLY

(REC)(REC)

XR-A370 ONLY

XR-A670 ONLY

(REC)(REC)

(REC)

D2301-D2306 : 1SS133

(PB) (PB)

CN2301

B3B-PH-K-S

XR-A370 ONLY

CN2302

B2B-PH-K-S

(PB)

33k (XR-A670) 47k (XR-A370)

220k (VCP1164): XR-A670 100k (VCP1162): XR-A370

VR2801

220k

XR-A670 ONLY

C

(REC)

MYXJ, NVXJ TYPES ONLY

(REC)

(PB)

XR-A670 ONLY

XR-A370 ONLY

D

22

F

CN2303

B3B-PH-K-R

1/3

1234

5

678

XR-A670, XR-A370

(PB) (PB) (PB)

(PB)

(REC)

XR-A670

(PB)

ONLY

(PB) (PB)

BA4558F-HT

(REC)(REC)

BA4558F-HT

(PB)

(REC)

1SS355

(REC)

(PB)

XR-A370 ONLY

(REC)(REC)

A

(PB)(PB)

(REC)

(PB)

B

(REC)

XR-A670/ MYXJ, NVXJ ONLY

XR-A670 ONLY

(REC)

3/3

F

2/3,3/3

F

2/3

C

3/3

F

XR-A670 ONLY

5

6

: The power supply is shown with the marked box.

7

F

3/3

F

2/3

F

1/3

8

23

D

1

XR-A670, XR-A370

3.6 AF ASSY (2/3)

F 2/3

AF ASSY

A

B

(XR-A670/MYXJ, NVXJ : XWZ3200) (XR-A670/KUCXJ : XWZ3199) (XR-A370/MYXJ, NVXJ : XWZ3197) (XR-A370/KUCXJ : XWZ3196)

MYXJ, NVXJ TYPES ONLY

23

CN8204

B

CN1052

52045-0845

MYXJ, NVXJ TYPES ONLY

0.056 (MYXJ,NVXJ)

0.027 (KUCXJ)

MYXJ, NVXJ TYPES ONLY

0.56 (MYXJ,NVXJ)

0.47 (KUCXJ)

0.1 (MYXJ,NVXJ)

0.068 (KUCXJ)

0.33

4

3/3

F

0.47/50

IC300

LC75394NED

0.47/50

: AUDIO SIGNAL ROUTE

0.33

0.056 (MYXJ,NVXJ)

0.027 (KUCXJ)

C

: CD AUDIO SIGNAL ROUTE : TUNER AUDIO SIGNAL ROUTE : DECK PB SIGNAL ROUTE : DECK REC SIGNAL ROUTE

0.56 (MYXJ,NVXJ)

0.47 (KUCXJ)

0.1 (MYXJ,NVXJ)

0.068 (KUCXJ)

0.47/50 (MYXJ,NVXJ)

2.2/50 (KUCXJ)

2.2/50 (MYXJ,NVXJ) 10/50 (KUCXJ)

0.47/50 (MYXJ,NVXJ)

2.2/50 (KUCXJ)

0.47/50 (MYXJ,NVXJ)

2.2/50 (KUCXJ)

4.7/50 (MYXJ,NVXJ) 10/50 (KUCXJ)

BA4558F-HT

CN5102

D

CN5503

J

24

F

2/3

52045-2545

XR-A670 ONLY

BA4558F-HT

1234