Harman Kardon DVD-21 Service manual

DVD 21 Digital Versatile Disc Player

SERVICE MANUAL

DVD 21

Power for the Digital Revolution™

®

TECHNICAL SPECIFICATIONS

Technical Specifications

Applicable Disc: Disc formats: 5 inch (12 cm) or 3 inch (8 cm) DVD-Movie, Standard conforming DVD+RW, DVD+R, DVD-R and DVD-RW,

VCD, CD, CD-R, MP3 or CD-RW discs,
Regio code: DVD Movie disc with Code 2 or 0 only.
DVD-Layers: Single Side/Single Layer, Single Side/Dual Layer, Dual Side/Single Layer, Dual Side/Dual Layer
Audio formats: Linear PCM, MPEG, Dolby Digital or DTS

Video Signal System: PAL/NTSC

Composite Video Output: 1 V p-p/75 Ohms, sync negative polarity

S Video Output: Y/Luminance: 1 V p-p/75 Ohms, sync negative polarity

C/Chrominance: 0.286 V p-p

Analog Audio Output: 2 Vrms max

Frequency Response: DVD (Linear PCM): 2 Hz - 22 kHz +0/-0.5 dB (48 kHz sampling)

2 Hz - 44 kHz +0/-0.5 dB (96 kHz sampling)

CD: 2 Hz - 20 kHz +0/-0.5 dB

Signal/Noise Ratio (SNR): 113 dB (A-weighted)

Dynamic Range: DVD: 100 dB (18 Bit) / 105 dB (20 Bit)

CD/DVD: 96 dB (16 Bit)

THD/1kHz: DVD/CD: 0.0025 %

Wow & Flutter: Below Measurable Limits

AC Power: 110 - 240 V/ 50 - 60 Hz

Power Consumption: 12 Watts (On) /20 Watts (Max)

Dimensions (WxHxD): 440 x 87 x 305 mm

Weight: 7 Kg

Depth measurement includes knobs and connectors.

Height measurement includes feet and chassis.

All specifications subject to change without notice.

Harman Kardon and Power for the digital revolution are trademarks of Harman Kardon, Inc.
Manufactured under license from Dolby Laboratories. Dolby, AC-3, ProLogic and the double-D symbol are trademarks of Dolby Laboratories. Confidential.
Unpublished Work. © 1992-1997 Dolby Laboratories, Inc.All rights reserved.
DTS is a trade mark of Digital Theater Systems, Inc.

This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rights
owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation and
is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or diassembly is
prohibited.

TROUBLESHOOTING GUIDE

Troubleshooting Guide

TROUBLESHOOTING GUIDE

SYMPTOM POSSIBLE CAUSE SOLUTION

Unit does not turn on • Main Power Switch



turned Off • Press in Main Power Switch



• No AC power • Check AC power plug and make certain any switched
outlet is turned on

Disc does not play • Disc loaded improperly • Load disc label-side up, note to align the disc with the guides

and place it in its proper position.

• Incorrect disc type • Check to see that disc is CD, CD-R,CD-RW,VCD, DVD+RW,
DVD+R, DVD-R and DVD-RW (standard conforming) or
DVD-Movie; other types will not play

• Invalid Region Code • Use Region 2 disc only

• Rating is above parental preset • Enter password to override or change rating settings,
see page 18

No picture • Intermittent connections • Check all video connections

• Wrong Input • Check input selection of TV or receiver.

No sound • Intermittent connections • Check all audio connections

• Incorrect digital audio selection • Check digital audio settings

• DVD disc is in fast or slow mode • There is no audio playback on DVD discs during fast or slow modes

• Surround receiver not compatible • Use analog audio outputs.

with 96 kHz PCM audio

Picture is distorted or jumps during • MPEG-2 decoding • It is a normal artifact of DVD playback for pictures
fast forward or reverse play to jump or show some distortion during rapid play

Some remote buttons do not operate • Function not permitted at this time • With most DVDs some functions are not permitted at certain
during DVD play, Prohibited symbol ” ” times (e.g.Track Skip) or not at all (e.g. direct Audio track
appears (see below) selection).

The OSD menu is in a foreign language • Incorrect Display language • Change Display language selection, see page 19

” ”Symbol Appears • Requested function not available at • Certain functions may be disabled by the DVD itself during

this time passages of a disc

Picture is displayed in the • Incorrect match of aspect ratio settings • Change Aspect Ratio settings, see page 17

wrong Aspect Ratio to disc

• Unit is not connected to TV with a Scart • To make TVs turn automatically to 16:9 mode they must

connector. be conneted to the player via Scart.

Remote control inoperative • Weak batteries • Change both batteries

• Sensor is blocked • Clear path to sensor or use remote sensor

Disc will not copy to VCR • Macrovision protection • Many DVDs are encoded with Macrovision

to prevent copying to VCR

screw

,

No. Parts No.

1
2
3

4

WLD8.031.076 Chassis 1
WLD8.404.042 Top cover 1
WLD8.610.086 Rear panel 1

WLD8.809.002

5

6
7
8
9
10
11
12

13
14
15
16
17
18

WLD6.116.087 Front panel 1
WLD8.085.005-1 Foot 4
WLD8.337.024 Power button 1
WLD8.082.021 Door 1
WLD7.370.001 Filter for VFD 1
WLD8.085.007 Foot pad 4
WLD8.634.001 Screw jacket 4

WLD7.085.007
WLD8.088.007 VFD cushion 1
WLD8.088.008 VFD cushion 1
WlLD8.070.006 RC sensor support 2
WLD7.370.002 RC sensor lens 1
WLD8.605.013~014 RC case 1

DVD 21 Component List

Description & Model

Basic Data

Metal Parts

“harman/kardon”
badge 1

Fastening parts

Plastic Parts

Power switch insulation
strip 1

QTY

Position No. Remark

Additional attached

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

19

20
21
22
23

24

25

26

27

WLD8.605.015 Cover for battery case 1

WLD7.683.009 RC conductive rubber 1
WLD8.804.009 RC indication plate 2
WLD7.370.003 Lens on front panel 1
WLD8.849.001 Glue for lens 1

WLD8.849.003 Insulation paper 1

WLD8.079.008-1 Plastic bracket for PCB 2

WLD8.070.030 Plastic bracket for PCB 5

WLD8.070.031 Mechanism support 2

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material

Antiflaming material 110 X 25mm

7 X 12.8mm (power

supply board

7 X 8mm (main board &

Antiflaming material

Antiflaming material

Page 1

output board)

6 mm height

Total 4 pages

Page 1

)Antiflaming material

No. Parts No.

-

y

1

2

4

WLD5.018.023

5

6

7

8

9

DVD 21 Component List

Description & Model

Basic Data

Binding wire aluminum
slice 1
Black pyro
condensation tube 1

Complete Part

Panasonic single disc
mechanism DU-5 1

Powerswitch (fixed space
between holes: 20) PS4E­A-040

Cable

4-core 350 length single

2.54 spacing

10-core 380 length double,

one side spacing 2.0 and

the other 2.54

10-core 160 length single

2.0 spacing
7-core 310 length with two

sides dipped in tin

QTY

1

1

1

1

1

Position No.

To cover φ3X40 black
pyrocondensation tube

φ3X40

The door height is the same

as that of DVP-560

Mechanism

SW1

Connect between power

supply board & big front

Connect between power

supply board & main board

Connect between front

panel & main board

Connect between big &

small front panels

Remark

With platen

Self-made

Same direction and self-

made

Self-made

Self-made

10

11

12

13

14

15
16
17
18
19
20

21
22
23
24
25
26

50-core 140 length double

0.5 spacing flat cable
22-core 60 length 1.0

spacing flat cable
End clip length 70mm

power cord with plug
(round double pins)

2-core 300 length double
VH-3Y (antiflaming) plugs
(double insulated lines)

2-core 110 length double

2.0 spacing, one side is PH
2Y-A, the other one is PH­2A

Packing

WLD8.865.166 Carton box 1
WLD8.870.029 Polyfoam pad 2
WLD8.840.043 Plastic bag AV cords 1
WLD8.840.044 Plastic bag for OM 2
WLD8.840.045 Packing bag player 1
WLD8.870.029-1 Poly foam pad 1

Accessories

WLD8.810.111 OM SM109 1

Product warrant card 1
Certificate of eligibility 1
AV cords 3
S-Video cord 1
5# batteries 2

1

1

1

1

1

Connect between

mechanism & main board

Connect between main

board & output board

Power supply board (white

VH connector)

The connection side VH of

switch board & power suppl

board JP1 is orange

Connect between

mechanism & main board,

PH-2Y-A side connected to

mechanism

Page 2

Purchased

Purchased

CE approved

Same direction and self-

made

Gray or black

Total 4 pages

Page 2

No. Parts No.

r

r

gy

gy

1
2

DVD 21 Component List

Description & Model

Basic Data QTY

Packing list 1
RC transmission line 1

Parts

Position No. Remark

3

4
5

6

7

8

9

10

11

12
13

14

15
16

17

18

19

20
21
22

23
24

25

WLD6.672.316 Main board assy 939C 1

Output board assy

WLD6.672.228
WLD6.672.317 Big panel assy 999C 1

WLD6.672.318

WLD6.672.324

WLD6.672.230 RC board 738C 1

WLD6.672.229-2

WLD7.820.939C Main board PCB 939C 1

WLD7.820.736C

WLD7.820.787C-2

WLD7.820.999C Big panel PCB 999C 1

WLD7.820.998C-1

WLD7.820.1040C
WLD7.820.738C RC board PCB 738C 1

736C 1

Small panel assy
998C 1
Powe
assy 1040C 1

Remote control board
assy 787C-2

Antiflaming material

Output board PCB
736C 1
Powerswitch board
PCB 787C-2 1

Small panel PCB
998C 1
Powe
PCB 1040C 1

EAOS63 soldering tin
bar

SH-18 scaling powder

SH-08 thinner
BB1.2 soldering tin
thread

Colophony
Plastic glue bar

Double-faced adhesive
tape

Seal adhesive tape
Transparence
adhesive tape

supply board

PCB

supply board

Assistant Material

Same as EU DVD 25

UL approved

UL approved

UL approved
UL approved

UL approved

UL approved
UL approved

Double-layer PCB

Double-layer PCB

Single-layer PCB

Single-layer PCB

Single-layer PCB

Single-layer PCB

Single-layer PCB

Double-layer PCB

166X116

Double-layer PCB

87X41

Single-layer PCB

55X27

139X55

Single-layer PCB

55X26

Single-layer PCB

95X182
175X50

Page 3

Total 4 pages

Page 3

)

)

DVD 21 Component List for Fastening Pieces (Bolt)

Description & Model

No. Parts No.

1 PAHC M2.5×65
2 SJ2818-87 PWBTTO M3×62
3 KBTTO M3×62
4 PWMTTC M3×13 3
5 PWBTTC M3×61
6 PWMTTC M3×18 2
7 PWBTTC M3×62
8 PWBTTC M3×12 4
9 RBTTC M3×81
10 PAHO M3×81
11 PWBTTO M3×63
12 PAHO M3×83
13 RTHO M4×84
14 PWBTTO M3×89
15 PAHC M3×64
16 SJ2844-87 PWMTTC M3×13 2
17 PWMO M3×10 2
18 Nut M3×32
19 PAHO　M3×81

Basic Data

QTY

Position No.

Fix PCB to front
Fix front panel to
Fix front panel to

Fix main board

Fix main board
Fix power supply
Fix power supply

Fix mechanism

Fix IC to radiator

Fix optical output

Fix rear panel to

Fix coaxial jack

Fix foot to bottom

Fix top cover

Fix power switch

Fix output board

Fix SCART
Fix SCART

Fix output board

Page 4

Remark

Total 4 pages

Page 4

DVD 21 Component List for Main Board (939C)

Resistor

1 WLD7.075.0 0Ω(SMD0603
2 WLD7.075.0 0Ω(SMD1206) 4

WLD7.075.100 10Ω(SMD0603) 1

3

WLD7.075.220 22Ω(SMD0603) 10

4

WLD7.075.330 33Ω(SMD0603) 12

5

6 WLD7.075.750 75Ω(1%,SMD0603

WLD7.075.101 100Ω(SMD0603) 1

7

WLD7.075.111 110Ω(SMD0603) 2

8

WLD7.075.331 330Ω(SMD0603) 2

9

WLD7.075.471 470Ω(SMD0603) 2

10

WLD7.075.511 510Ω(SMD0603) 2

11

WLD7.075.681 680Ω(SMD0603) 2

12

WLD7.075.102 1KΩ(1%, SMD0603) 6

13

WLD7.075.112 1.10KΩ 1%,SMD0603 1

14

WLD7.075.152 1.5KΩ(1%, SMD0603) 1

15

WLD7.075.182 1.8KΩ(SMD0603) 2

16

WLD7.075.332 3.3KΩ(SMD0603) 4

17

4.7KΩ(SMD0603) 7

18

WLD7.075.622 6.2KΩ(SMD0603) 1

19

WLD7.075.752 7.5KΩ(SMD0603) 4

20

The parts with underline should be installed on the back of circuit board.

15

11

R54 R59 RR15

R1 R3
RR59FB8FB9FB12FB1
R150 R151 R152 R153

L3 L10 LL5 L7

R46

R5 R34 R41 R49

R50

RR79 RR80 RR81

R19 R36 R43 R44 R45

R136 R137

RR18

R35 R37

R162R170

R48 R52
R140 R141
R165 R173

R42

R47

R9

R188 R236

R127 R155 R156

R15

R167R169R178R231

R219 RR22 RR24

R64

R185 R233 RR30 RR31

Page 1

Total 5 pages

Page 5

)

DVD 21 Component List for Main Board (939C)

)

g

y

y

Description & Model

No. Parts No.

1 WLD7.075.822 8.2KΩ(SMD0603) 2

2 WLD7.075.103 10KΩ(SMD0603) 19

3 WLD7.075.153 15KΩ(SMD0603) 7

WLD7.075.223 22KΩ(SMD0603) 2

4
5

WLD7.075.273 27KΩ(SMD0603) 2

6

WLD7.075.333 33KΩ(SMD0603) 1

WLD7.075.473 47KΩ(SMD0603) 25

7
8

WLD7.075.563 56KΩ(SMD0603) 1

9

WLD7.075.683 68KΩ(SMD0603) 1

10

WLD7.075.823 82KΩ(SMD0603) 1

11

WLD7.075.104 100KΩ(SMD0603) 3

12

WLD7.075.1 MΩ 1MΩ(SMD0603) 2

13

WLD7.075.4.7MΩ 4.7MΩ(SMD0603) 1

Basic Data QTY

Resistor

Position No.

RR58 RR60

R6 R7 R8 R61 R17

R135R161R177R190R

RR20RR21RR38RR4
RR47RR51RR57RR9

RR52 RR56 RR61
RR72 RR76 RR77

RR25 RR48

RR16 RR17

RR49

RR6 RR7 RR8

RR5

RR10 RR12 RR13

RR34 RR35 RR36

RR42

RR44 RR62

RR66 RR68 RR69
RR71 RR73 RR74

RR23
RR50

R63

R57

RR64 RR65

RR54 RR19

RR78

Remark

RN1 RN2 RN3 RN4

14

15 WLD7.075.5C 5PF(SMD0603) 2

Resistor line 33Ω×48

Capacitor

RN5 RN6 RN7 RN8

CC7 CC9

C51C52C53C55C58

C61 C88C154

16

WLD7.075.20C 20PF(SMD0603) 10

17

WLD7.075.22C 22PF(5%,SMD0603) 4

C176

C72 C73 C107 C108

C183 CC35 C90 C91C

18

WLD7.075.47C 47PF(SMD0603) 5

19

WLD7.075.82C 82PF(SMD0603) 1

C152

CC63

C56 C59 C62 C64

C65 C54C57C60

20 WLD7.075.101C 100PF(SMD0603

11

C148 C217C328

C149 C150 C151C155

521 WLD7.075.221C 220PF(SMD0603

CC28

The parts with underline should be installed on the back of circuit board.

C179

Page 2

High frequency

High frequency
High frequency

High frequency
High frequency

Hi

h frequenc

High frequenc

Total 5 pages

Page 6