ORDER NO.

PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, JapanPIONEER 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, BelgiumPIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Allexandra Road, #04-01, Singapore 159936 PIONEER ELECTRONIC CORPORATION 1999c

RRV2123

XC-IS21T

1. SAFETY INFORMATION ....................................... 2

2. EXPLODED VIEWS AND PARTS LIST ................. 3

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 16

4. PCB CONNECTION DIAGRAM ........................... 34

5. PCB PARTS LIST ................................................ 46

6. ADJUSTMENT..................................................... 51

7. GENERAL INFORMATION .................................. 57

7.1 PARTS ........................................................... 57

7.1.1 IC .......................................................... 57

CONTENTS 7.2 DIAGNOSIS ................................................... 61

7.2.1 DISASSEMBLY .................................... 61

7.2.2 SEQUNCE AFTER THE POWER ON... 65

7.2.3 SINGLE OPERATION METHOD .......... 66

7.2.4 PCB LOCATION ................................... 68

8. PANEL FACILITIES AND SPECIFICATIONS....... 70

T – ZZY APR. 1999 Printed in Japan

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

CD TUNER DECK

RemarksTypeModel

XC-IS21TPower Requirement

ZYXJ O DC power supply from other system

ZVXJ O DC power supply from other system

This product is a system(s) component.This product does not function properly when independent; to avoid malfunctions, be sureto connect it to the prescribed system component(s), otherwise damage may result.

CD TUNER DECK XC-IS21T RRV2123 This service manual

STEREO POWER AMPLIFIER M-IS21 RRV2129

SPEAKER SYSTEM S-IS21 RRV2128

System

IS-21TComponent Service Manual Remarks

XC-IS21T

2

1. SAFETY INFORMATIONThis service manual is intended for qualified service technicians; it is not meant for the casualdo-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have beentrained 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 mayvoid the warranty. If you are not qualified to perform the repair of this product properly and safely, youshould not risk trying to do so and refer the repair to a qualified service technician.

IMPORTANTTHIS PIONEER APPARATUS CONTAINSLASER OF CLASS 1.SERVICING OPERATION OF THE APPARATUSSHOULD BE DONE BY A SPECIALLYINSTRCUTED PERSON.

LASER DIODE CHARACTERISTICSMAXIMUM OUTPUT POWER: 5 mwWAVELENGTH: 708-785 nm

ZYXJ type Only ZYXJ type Only

ZVXJ type Only

(Right side view)

LABEL CHECK

1. Laser Interlock MechanismThe loading position detect switch (in CD mechanismassembly) is set to "CLMP ON(CD CLOSE)" (ON:lowlevel,OFF:high level) posit ion, the system controlIC(IC5501) get the "CLMP" signal, and hand the laser"LDON" signal to IC1101.Then a laser diode can be lighted except when the level ofsignal CLMP is low.The interlock also does not function in the test mode∗.Laser diode oscillation will continue, if pin 1 of CXA1821M(IC1101) on the CDMAIN UNIT is connected to GND, orpin 19 is connected to low level (ON), or else the terminalsof Q1101 are shorted to each other (fault condition).

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

∗ : Refer to page 54.

Additional Laser Caution

3

XC-IS21T

2.1 PACKING

2. EXPLODED VIEWS and PARTS LISTNOTES: • 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) CONTRAST TABLEXC-IS21T/ZYXJ and ZVXJ are constructed the same except for the following:

MarkZYXJ type ZVXJ type

3 Operating Instructions ARC7255 Not used(Spanish/Portuguese/Swedish/Dutch)

4 Operating Instructions ARE7225 Not used(English/French/German/Italian)

5 Operating Instructions Not used ARB7197(English)

NSP 6 Errata ARX7027 ARX702812 Power Cord XDG3001 ADG115614 Polyethylene Bag Not used Z21-013

(0.05 x 115 x 270)

Part No.RemarksSymbol and DescriptionNo.

9

10

13

13

12

2

8

11

19

1

1615

12

5

4

36

7

14

17

18

ZVXJ type Only

ZYXJ type Only

(1) PACKING PARTS LISTMark No. Description Part No.

1 System Cable ADE70392 FM Antenna ADH70053 Operating Instructions See Contrast table (2)

(Spanish/Portuguese/Swedish/Dutch)4 Operating Instructions See Contrast table (2)

(English/French/German/Italian)5 Operating Instructions See Contrast table (2)

(English)

NSP 6 Errata See Contrast table (2)NSP 7 Warranty Card ARY7022

8 AM Loop Antenna ATB70079 Remote Control Unit AXD7224

(CU-XR056)10 RCA Pin- plug Stereo Cable VDE1052

(L= 1.5m)NSP 11 Dry Cell Batteries(AA/R6) VEM-013

12 Power Cord See Contrast table (2)13 Polyethylene Bag Z21-038

(0.03 x 230 x 340)14 Polyethylene Bag See Contrast table (2)

(0.05 x 115 x 270)15 Side Pad ML AHA7240

16 Side Pad MR AHA724117 Packing Sheet AHG705318 Packing Case AHD775019 Battery Cover AZA7331

4

XC-IS21T

2.2 EXTERIOR (1/2)

10

13

14

12

99

5

6

8

7

4

8

3

2

10

1

10

9

2

11

ZYXJ typeOnly

Refer to "2.4 FRONT PANAEL ASSY (1/2) and 2.5 FRONT PANEL ASSY (2/2)"

5

XC-IS21T

1 Rear Cover AMC70292 Cussion Rubber AEB71543 Jack Door AAN71884 Jog Lens AAK76515 Jog Knob AAA7005

6 Tray Cap AAK7622NSP 7 Tray Seal RRW1162

8 Jog Escutcheon AAK76209 Screw BBZ30P080FMC

10 Screw VPZ30P100FMC

11 Screw BMZ30P060FZKNSP 12 Name Label AAL7225

13 Caution Label See Contrast table (2)14 Caution Label See Contrast table (2)

(1) EXTERIOR (1/2) PARTS LIST

Mark No. Description Parts No.

(2) CONTRAST TABLEXC-IS21T/ZYXJ and ZVXJ are constructed the same except for the following:

MarkZYXJ type ZVXJ type

13 Coution Label PRW1233 PRW101814 Coution Label VRW1094 Not used

Part No.RemarksSymbol and DescriptionNo.

6

XC-IS21T

2.3 EXTERIOR (2/2)

1

21

7

21

2223

21

199

4

24

22

20

10

22

15 3

2118

25

17 1621

14

13

11

5

12

2

8

21

6

Refer to " 2.7 DECK MECHANISM UNIT "

A

A

7

XC-IS21T

1 U- COM ASSY AWU73252 DECK ASSY AWU73333 AF ASSY AWU72964 R- TERMINAL ASSY AWU73145 FM/AM TUNER MODULE AXQ7068

6 Deck Shield AEC72097 DECK MECHANISM UNIT AXA7075

NSP 8 Chassis M ANA70879 Rear Panel ANC7735

NSP 10 Shield Plate ANK7059

11 Shield Case T ANK705012 Shield Case B ANK705113 Earth Plate XNG301514 Ceramic Capacitor CKPUYB102K5015 PC Support DEC1932

NSP 16 Spacer AEB709217 Rubber Sheet AEB111118 Leg Assy IS AEC720219 Locking Card Spacer VEC1596

NSP 20 PCB Spacer (3 x 6) AEC7156

21 Screw BBZ30P080FMC22 Screw VPZ30P080FZK23 Connector Assy 3p ADX725224 23P F.F.C /30V ADD7150

NSP 25 TX CONNECT ASSY AWU7323

÷ EXTERIOR (2/2) PARTS LIST

Mark No. Description Parts No.

8

XC-IS21T

7

8

9

11

5

6

10

2926

2530

24

16

10

33

12

1829

19

29

27

27

15

15

34

29

17

29

2921

20

29

31

2823

32 22 2

43

1

1314

1314

33

33

33

2.4 FRONT PANEL ASSY (1/2)

9

XC-IS21T

1 FRONT PANEL ASSY AWU7308NSP 2 CD CLOSE SW ASSY AWU7320NSP 3 CO OPEN SW ASSY AWU7319

4 F- TERMINAL ASSY AWU7310NSP 5 LCD ASSY (TC) AWU7354

NSP 6 LIGHT- L ASSY AWU73217 Lens Holder AMR72478 Lens M AAK76159 Diffusion Sheet AAK7666

10 Reflector AMR7248

11 15P F.F.C/ 30V ADD714712 29P F.F.C/ 30V ADD714813 Frame ANG723514 Rail AMR723915 Blind AMR7261

16 PCB Holder L AMR726217 PCB Holder R AMR726318 Plating Button Assy AXG707719 Fuction Button B AAD751120 Window AAK7621

21 Complex Button AAD750922 Plating Button AAD750723 Function Button A AAD751024 O/C Button AAD750625 Key O/C AAD7526

26 Connector 3p ADX725227 Screw IPZ30P100FMC28 Screw ABA100529 Screw VPZ30P080FZK30 17P F.F.C/ 30V ADD7145

31 Front Panel M AMB762732 PU Caution Label ARW705933 Spacer AEC721634 Screw VPZ30P100FMC

÷ FRONT PANEL ASSY (1/2) PARTS LIST

Mark No. Description Parts No.

10

XC-IS21T

BC

A

20

27

27

21

21

1225

13 (1/2)

11

25

24

6

5

9

1023

8

7

2

17

21

19

18

2612

25

13 (2/2) 3

22

1

16

15

14

4

Note 1 Cutting Position (No.13 (Mecha Holder)

Cutting

Note 1

Note 1

No.13(2/2)

No.13(1/2)

Refer to "2.6 CD MECHANISM ASSY"

2.5 FRONT PANEL ASSY (2/2)

11

XC-IS21T

1 CD MOTOR ASSY AWU73182 CD ASSY AWU73043 Slider Motor VXM1033

NSP 4 Motor Shield ANK70675 Motor Pulley PNW1634

6 Gear Holder AMR72407 Gear A ANW70638 Gear B AMR72609 Gear Pulley A ANW7066

10 Belt AEB7171

11 CD MECHANISM ASSY KSM-620AAA12 Float Spring ABH717013 Mechanism Holder AMR724214 CD Door Window AAK761815 CD Door Escutcheon AAK7619

16 CD Door AAN718917 Shaft Assy AXG707818 Shaft Holder AMR723719 Cussion Rubber AEB715420 Screw BBZ30P080FMC

21 Screw VPZ30P080FZK22 Screw ABA705423 Screw PMZ26P040FMC24 Screw IPZ20P080FMC25 Float Rubber AEB7129

26 17P F.F.C/ 30V ADD714627 Screw VPZ30P100FMC

÷ FRONT PANEL ASSY (2/2) PARTS LIST

Mark No. Description Parts No.

12

XC-IS21T

2.6 CD MECHANISM ASSY

2

53

10

1

47

8

6

9

1 KSS-62A(RP) 8-820-063-(03)2 Sled Screw Assy X-2646-389-(1)3 Sled Motor Assy A-4912-199-(A)4 MD Assy X-2646-482-(1)5 Geer BN 2-627-761-(02)

6 Rack Spring 2-646-912-(1)7 Holder 2-648-913-(1)8 Tapping Screw 2-646-352-019 Precision Screw 2-627-668-01

10 Tapping Screw 2-646-358-11

÷ CD MECHANISM ASSY PARTS LISTMark No. Description Parts No.

13

XC-IS21T

1 Screw FG114-142 Screw UG12H-153 Front BKT FC64K-114 Washer MJ112-225 SP Return FK34N-11

6 Plate Hold BLK F573-2587 Holder CST BLK F527-0788 LDG Base FD56R-129 Pulley FD56T-11

10 LDG Gear FD56U-11

÷ DECK MECHANISM UNIT (1/2) PARTS LISTMark No. Description Parts No.

Refer to "2.8 DECK MECHANISM UNIT (2/2)".

12 9

16 4

11

10

14

4

7

8

3

1816

16

517

6

1

13

16

16

22

11 Slider FD57E-1112 LDG Belt FF19L-1213 Switch UE15S-1414 MTR Reel BLK F564-31315 ...............

16 Screw UG12H-2817 SP Clamper FK34M-1118 Switch UE18P-21

Mark No. Description Parts No.

2.7 DECK MECHANISM UNIT (1/2)

14

XC-IS21T

20

2441

42

43

39

22

2630

13

1

25

38

1618

6

35

32

732

17

28

29

9

3

36

37

3023

27

33

14

15

5

11

8

3

12

19

1

40

42

2134

10 31

2.8 DECK MECHANISM UNIT (2/2)

15

XC-IS21T

1 Screw KG194-362 Reel Feather FD57D-133 Screw UG11S-144 SP Reel(L) FK32U-125 SP Brake FK33B-13

6 SP Arm Play FK33P-117 SP Reel(R) FK32V-128 Spring Cassette FC65M-119 BKT MTR FC64M-12

10 Reel Base FD52W-12

11 Cam Gear FD52Y-2312 Play Gear (A) FD53K-1213 Arm Play FD53D-1914 Plate Slide FC61L-1915 PCB Control BLK F567-617

16 Chassis base BLK F612-23117 Head Base FC61K-3218 Roller Pinch BLK R F514-12919 Roller Pinch BLK L F514-13020 Assy F/W FR24S-21

21 Clutch Assy BLK F522-03722 Clutch Assy BLK F522-04823 Washer FJ111-1324 F/R Pulley FD53F-1525 Solenoid BLK F765-279

26 F/R Belt FF18W-1227 Belt Main FF19H-1128 Plate HD BLK F513-82429 MTR MAIN BLK F525-32130 Washer FJ111-30

31 Washer FJ111-3532 Washer UJ16F-1133 Lever Brake FD53P-1734 FF Gear(A) FD53L-1235 Cam SP FK32S-14

36 Screw UJ14A-1237 Lever F/R FC62G-1438 Plunger FL41S-2139 Mecha-Cable WH65N-1140 Spring HB FK32T- 31

41 Screw UG15V-1342 Washer MJ112- 2243 Spacer UJ15V- 13

÷ DECK MECHANISM UNIT (2/2) PARTS

LISTMark No. Description Parts No.