Yamaha DVD S540 - Progressive Scan DVD Player User manual

SERVICE MANUAL
This manual has been provided for the use of authorized YAMAHA Retailers and their service personnel.
It has been assumed that basic service procedures inherent to the industry, and more specifically YAMAHA Products, are already
known and understood by the users, and have therefore not been restated.
WARNING: Failure to follow appropriate service and safety procedures when servicing this product may result in personal
injury, destruction of expensive components, and failure of the product to perform as specified. For these reasons,
we advise all YAMAHA product owners that any service required should be performed by an authorized YAMAHA
Retailer or the appointed service representative.
IMPORTANT: The presentation or sale of this manual to any individual or firm does not constitute authorization, certification or
recognition of any applicable technical capabilities, or establish a principle-agent relationship of any form.
The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research, engineering, and service
departments of YAMAHA are continually striving to improve YAMAHA products. Modifications are, therefore, inevitable and
specifications are subject to change without notice or obligation to retrofit. Should any discrepancy appear to exist, please contact the
distributor's Service Division.
WARNING: Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground buss in the unit (heavy gauge black wires connect to this buss).
IMPORTANT: Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply power to the unit.
IMPORTANT NOTICE
100863
SERVICE MANUAL
MAINTENANCE FLOW CHART /
メンテナンスフローチャート . . . . . . . . . . . . . . . . .14–21
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . .23
PRINTED CIRCUIT BOARD . . . . . . . . . . . . . . . .24–28
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . .29
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . .30–38
PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39–46
■ CONTENTS
TO SERVICE PERSONNEL . . . . . . . . . . . . . . . . . .2–4
PREVENTION OF ELECTRO STATIC DISCHARGE . . . . . . 4
LOCALE MANAGEMENT INFORMATION . . . . . . . .5
FRONT PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . .5–6
REMOTE CONTROL PANELS . . . . . . . . . . . . . . . . . .6
REAR PANELS . . . . . . . . . . . . . . . . . . . . . . . . . . . .7–8
SPECIFICATIONS / 参考仕様 . . . . . . . . . . . . . . . . . . . .9
SERVICE HINTS / サービスヒント . . . . . . . . . . . . . . .10
DISASSEMBLY PROCEDURES /
分解手順 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11–13
DVD-S540
DV-S5650
DVD PLAYER
DVD-S540/DV-S5650

2
DVD-S540/DV-S5650
DVD-S540
DV-S5650
■ TO SERVICE PERSONNEL
1. Critical Components Information
Components having special characteristics are marked Z
and must be replaced with parts having specifications equal
to those originally installed.
2. Leakage Current Measurement (For 120V Models Only)
When service has been completed, it is imperative to verify
that all exposed conductive surfaces are properly insulated
from supply circuits.
●Meter impedance should be equivalent to 1500 ohm shunted
by 0.15µF.
AC LEAKAGE
TESTER OR
EQUIVALENT
EQUIPMENT
UNDER TEST
INSULATING
TABLE
WALL
OUTLET
●Leakage current must not exceed 0.5mA.
●Be sure to test for leakage with the AC plug in both
polarities.
WARNING: Laser Safety
This product contains a laser beam component. This
component may emit invisible, as well as visible radiation,
which may cause eye damage. To protect your eyes
and skin from laser radiation, the following precautions
must be used during servicing of the unit.
1) When testing and/or repairing any component within
the product, keep your eyes and skin more than 30 cm
away from the laser pick-up unit at all times. Do not
stare at the laser beam at any time.
2) Do not attempt to readjust, disassemble or repair the
laser pick-up, unless noted elsewhere in this manual.
3) CAUTION : Use of controls, adjustments or
performance of procedures other than those specified
herein may result in hazardous radiation exposure.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or
plastic (where applicable) components may also contain traces of chemicals found by the California Health and
Welfare Agency (and possibly other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR
ANY REASON WHATSOEVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes
or expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands
before handling food.
Laser Emitting conditions:
1) When the Top Cover is removed, and the STANDBY/
ON SW is turned to the "ON" position, the laser
component will emit a beam for several seconds to
detect if a disc is present. During this time (5-10 sec.)
the laser may radiate through the lens of the laser pick-
up unit. Do not attempt any servicing during this period!
If no disc is detected, the laser will stop emitting the
beam. When a disc is loaded, you will not be exposed
to any laser emissions.
警告：レーザーの安全対策
本機はレーザー光線を放射する部品を搭載しています。こ
の部品が放射するレーザー光線は目に損傷を起こします。
このレーザー光線から目及び肌を保護するために、本機の
修理作業中は下記の注意を厳守してください。
１）テスト時または修理時、目及び肌を光ピックアップか
ら30cｍ以上離してください。いかなる場合もレーザー
光線を見つめないでください。
２）光ピックアップの再調整及び分解はしないでください。
３）このマニュアル上で指定されている以外の制御、調整、
手順はレーザー光線を照射される結果を招く恐れがあ
ります。
レーザー放射条件
１）トップカバーを取り外しSTANDBY/ONスイッチをON
にすると、ディスク検知のため5〜10秒間、光ピック
アップからレーザー光線が放射されます。この間、修
理はしないでください。
ディスクが検知されなければ、レーザー光線の放射は
停止します。ディスクがセットされている場合、ディ
スクで遮られるのでレーザー光線は修理担当者に届き
ません。

3
DVD-S540/DV-S5650
DVD-S540
DV-S5650
Laser Diode Properties
Type: Semiconductor laser GaAlAs
Wave length: 650 nm (DVD)
780 nm (VCD/CD)
Output Power: 7 mW (DVD)
10 mW (VCD/CD)
Beam divergence: 60 degree
VARO! : AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE
LASER-SÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING! : OSYNLIG LASERSTRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRREN ÄR URKOPPLAD.
BETRAKTA EJ STRÅLEN.
レーザー
タイプ 半導体レーザーGaAlAs
波長 650nm(DVD)
780nm(VCD/CD)
出力 7mW(DVD)
10mW(VCD/CD)
ビーム広がり 60度
WARNING
The use of optical instruments with this product will increase eye hazard.
Repair handling should take place as much as possible with a disc loaded inside the player.
WARNING LOCATION: REAR PANEL
CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN
OPEN.AVOID EXPOSURETO BEAM
ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING VED ÅBNING
UNDGÅUDSÆTTELSE FOR STRÅLING
ADVARSEL SYNLIG OG USYNLIG LASERSTRÅLING NÅR DEKSEL
ÅPNES UNNGÅEKSPONERING FOR STRÅLEN
VARNING SYNLIG OCH OSYNLIG LASERSTRÅLNING NÄR
DENNA DEL ÄR ÖPPNAD BETRAKTA EJ STRÅLEN
VARO! AVATT AESSA OLET ALTTIINA NÄKYVÄLLE JA
NÄKYMÄTTÖMÄLLE LASER SÄTEILYLLE. ÄLÄKATSO
SÄTEESEEN
VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG
WENN ABDECKUNG GEÖFFNET NICHT DEM STRAHL
AUSSETSEN
DANGER VISIBLE AND INVISIBLE LASER RADIATI ON WHEN
OPEN.AVOID DIRECT EXPOSURETO BEAM
ATTENTION RAYONNEMENT LASERVISIBLE ET INVISIBLE EN CAS
D'OUVERTURE EXPOSITION DANGEREUSE AU
FAISCEAU
G, B models U, C, R, K, A, P, T models
U, C, R, K, A, P, T models G, B models
2) The laser power level can be adjusted with the VR on
the pick-up PWB, however, this level has been set by
the factory prior to shipping from the factory. Do not
adjust this laser level control unless instruction is
provided elsewhere in this manual. Adjustment of this
control can increase the laser emission level from the
device.
２）レーザーパワーレベルは光ピックアップ基板上のVRに
より調整可能ですが、工場出荷前に調整セット済みな
ので、このVRは廻さないでください。このVRを廻す
と装置からのレーザー光線の放射レベルが上がる恐れ
があります。

4
DVD-S540/DV-S5650
DVD-S540
DV-S5650
■PREVENTION OF ELECTRO STATIC DISCHARGE
The laser diode in the DVD mechanism may be damaged due to static electricity from clothes or the human body.Use caution
to prevent electro static damage when servicing or handling the DVD-mechanism.
1. Grounding for electro static damage prevention
Some devices, such as the DVD player, use an optical pickup (laser diode) that will be damaged by static electricity in the
working environment.Only attempt service after ensuring that all grounding procedures have been completed.
1.Worktable grounding
Put a grounded conductive material (sheet) or iron sheet on the area where the optical pickup is placed.
2.Human body grounding
Use an anti-static wrist strap to discharge the static electricity from your body.
1MΩ
Conductive material
(sheet) or steel sheet
Anti-static wrist strap
Warning for power supply
The primary side of the power supply carries live mains voltage when the player is connected to the mains even when
the player is switched off !
This primary area is not shielded so it is possible to touch copper tracks and/or components when servicing the player.
Service personnel have to take precautions to prevent touching this area or components in this area .
The primary side of the power supply has been indicated with a lightening stroke and a stripe-marked print on the printed wiring
board.
Note:
The screws on the DVD mechanism (position 50 in on the exploded view drawing) may never be touched, removed or
re-adjusted.
Handle the DVD mechanism with care when the unit has to be exchanged!
The DVD mechanism is very sensitive for dropping or giving shocks.
S VIDEO COAXIAL
PCM
DTS MPEG
DIGITAL
OPTICAL
DIGITAL OUT AUDIO OUT
R
L
VIDEO
VIDEO OUT COMPONENT VIDEO OUT
P
R C R P B C B
Y
D1 D2
CLASS 1 LASER PRODUCT
LASER KLASSE 1 PRODUKT
LUOKAN 1 LASERLAITE
KLASS 1 LASER APPARAT
PRODUIT LASER DE CLASSE 1
J model

5
DVD-S540/DV-S5650
DVD-S540
DV-S5650
■LOCALE MANAGEMENT INFORMATION
Locale Management Information : This DVD player is designed and manufactured to respond to the Locale
Management Information that is recorded on a DVD disc. If the Locale number described on the DVD disc does not
correspond to the Locale number of this DVD player, this DVD player cannot play this disc.
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 disassembly is prohibited.
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2. Handling Precautions for DVD mechanism
1. Handle the DVD mechanism gently, as it is an extremely high-precision assembly.
2.The flexible cable lines may break if an excessive force is applied to it.Use caution when handling the cable.
3.The semi-fixed resistor for laser power adjustment should not be adjusted. Do not turn the resistor.
▼ DVD-S540 (U, C models)
■FRONT PANELS
▼ DVD-S540 (A, B, G, P, T, K, J models)

6
DVD-S540/DV-S5650
DVD-S540
DV-S5650
▼ DVD-S540 (R model)
▼ DV-S5650 (U, C model)
▼ DV-S5650 (A,G models)
▼ U, C, A, B, G, P, T, K, J models
■REMOTE CONTROL PANELS
▼ R model

7
DVD-S540/DV-S5650
DVD-S540
DV-S5650
▼ DVD-S540 (A model)
▼ DVD-S540 (P model)
▼ DVD-S540 (G, B models)
■REAR PANELS
▼ DVD-S540 (U, C models)
▼ DVD-S540 (R, K models)

8
DVD-S540/DV-S5650
DVD-S540
DV-S5650
▼ DV-S5650 (U, C models)
▼ DV-S5650 (A model)
▼ DV-S5650 (G model)
▼ DVD-S540 (T model)
▼ DVD-S540 (J model)

9
DVD-S540/DV-S5650
DVD-S540
DV-S5650
■SPECIFICATIONS/参考仕様
PLAYBACK SYSTEM /対応ディスク
DVD Video
Video CD & SVCD
CD
PICTURE CD
CD-R, CD-RW
DVD+R, DVD+RW
DVD-R, DVD-RW
VIDEO PERFORMANCE /ビデオ部
Video (CVBS) Output 1 Vpp into 75 ohm
S-Video Output Y: 1Vpp into 75 ohm
C: 0.3Vpp into 75 ohm
Component Video Output Y: 1Vpp into 75 ohm
Pb/Cb Pr/Cr: 0.7Vpp into 75 ohm
RGB (SCART) Output 0.7 Vpp into 75 ohm
Black Level Shift On/Off
Video Shift Left/Right
AUDIO FORMAT /オーディオフォーマット
Digital Mpeg/AC-3/DTS Compressed Digital
PCM 16, 20, 24 bits
fs, 44.1, 48, 96 kHz
MP3(ISO 9660) 24, 32, 56, 64, 96, 128, 256 kbps
fs 16, 22.05, 24, 32, 44.1, 48kHz
Analog Sound Stereo
AUDIO PERFORMANCE /オーディオ特性
DA Converter 24 bits
Signal-Noise (1kHz) 105 dB
Dynamic Range (1kHz) 100 dB
DVD fs 96 kHz 2 Hz - 44 kHz
fs 48 kHz 2 Hz - 22 kHz
SVCD fs 48 kHz 2 Hz - 22 kHz
fs 44.1 kHz 2 Hz - 20 kHz
CD/VCD fs 44.1 kHz 2 Hz - 20 kHz
Distortion and Noise (1kHz) 0.003%
TV STANDARD (PAL/50Hz) (NTSC/60Hz)
Number of lines 625 525
Playback Multistandard (PAL/NTSC)
CONNECTIONS /接続端子
Y Output Cinch (green)
Pb/Cb Output Cinch (blue)
Pr/Cr Output Cinch (red)
SCART Euroconnector (B, G models)
D Terminal (J model)
S-Video Output Mini DIN, 4 pins
Video Output Cinch
Audio Output (L+R) Cinch
Digital Output 1 coaxial, 1 optical
IEC958 for CDDA / LPCM/
MPEG1
IEC1937 for MPEG 2, Dolby
Digital and DTS
GENERAL /一般
Dimensions (w x h x d)
U, C models 435 x 75 x 302 mm
(17-1/8" x 2-15/16" x 11-7/8")
R, T, K, A, B, G, P, J models 435 x 78 x 302 mm
(17-1/8" x 3-1/16" x 11-7/8")
Weight Approx. 2.8 Kg (6 lbs 3 oz)
Finish DVD-S540 Gold (R, T, K, J models)
Black (U, C, A, B, G, P models)
Silver (C, R, T, B, G, P, J models)
Titanium (G model)
DV-S5650 Black (U, C, G models)
Silver (U, A, G models)
Power Supply 120V, 60Hz (U, C models)
230V, 50Hz (B, G models)
240V, 50Hz (A model)
110-240V, 50/60Hz (R, P, K models)
220V, 50Hz (T model)
100V, 50/60Hz (J model)
Power Consumption 12W
Standby Power Consumption (reference data) 1W
ACCESSORIES /付属品 Remote Control, Batteries
Audio/Video Cable (U, C, R, T, K, A, P, J models)
Audio Pin Cable (B, G models)
Video Cable (B, G models)
* Specifications subject to change without prior notice.
U ....... USA model
C ....... Canadian model
A ....... Australian model
B ....... British model
G ....... European model
R ....... General model
T ....... Chinese model
K ....... Korean model
P ....... South America model
J ....... Japanese model
Manufactured under license from Dolby Laboratories.
“Dolby”and the double-D symbol are trademarks of Dolby
Laboratories.
ドルビーラボラトリーズからの実施権により製造されています。
「ドルビー」及びダブルD記号は、ドルビーラボラトリーズの
商標です。
“DTS”and “DTS Digital Out”are trademarks of Digital Theater
Systems, Inc.
DTSおよびDTSDigitalOutはデジタルシアターシステムズの
登録商標です。
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
disassembly is prohibited.

10
DVD-S540/DV-S5650
DVD-S540
DV-S5650
■SERVICE HINTS / サービスヒント
1 Repair tips
1) Power Supply Unit
The power supply unit has to be replaced in case of
failure.
2) DVD Mechanism
The DVD mechanism is a non-repairable unit and in
case of failure, it has to be replaced with a complete
DVD machanism.
3) MONO Board
We do not supply the board for exchange.The board
has to be repaired down to component level in case of
failure.
2 Troubleshooting
In this paragraph some troubleshooting tips are given
to diagnose the DVD player.Use MAINTENANCE FLOW
CHART for trouble shooting.The diagnostic software is
not available in the player.
１ 修理についての助言
１）電源ユニット
故障の場合は、電源ユニットを交換してください。
２）DVDメカ
DVDメカは、修理不可能なユニットなので、故障の場
合は、DVDメカ全体を交換してください。
３）MONOボード
交換用ボードは供給できません。故障の場合は、部品
レベルで修理してください。
２ トラブルシューティング
トラブルシューティングには、メンテナンスフロー
チャートを活用してください。
故障診断ソフトウエアは内蔵されていません。

11
DVD-S540/DV-S5650
DVD-S540
DV-S5650
See exploded view for item numbers. Mounting
Dismounting
Front KARAOKE board [1001(3)]
** R model only **
Remove 2 screws [0015].
(Board to Front panel).
➔Remove cable connection.
➔Dismount board.
Front Display board [1001(1)]
➔Remove cable connections.
➔Remove 4 screws [0010]
(Board to Front panel).
➔Dismount board.
Front Panel [0001]
➔Remove cable connections.
➔Open Tray (see HOW TO MANUALLY
EJECT THE TRAY).
➔Unlock Tray cover [0035] and close
tray.
➔Unlock Front panel from frame by
releasing successiv ely 4 snaps
(2 on the side and 2 on the bottom).
Top Cover [0250]
➔Remove 4 screws [0113]
and 3 screws [0261].
➔Lift cover from rearside to
remove.
DVD Mechanism [0050]
➔Remove cable and Flex connections.
➔Open tray (see HOW TO MANUALLY
EJECT THE TRAY).
➔Unlock Tray cover [0035] and close
tray.
➔Remove 4 screws [0155]
(DVD Mechanism to bottom).
➔Lift DVD Mechanism up slightly and
move it backward to remove.
Power supply unit [1003]
➔Remove cable connections.
➔Remove 2 screws [0111].
(Board to bottom frame)
➔Release 2 spacers locking
(Board to bottom frame).
➔Dismount board.
MONO board [1004]
➔Remove cable and Flex connections.
➔Remove 4 (B, G) or
5 (U, C, R, T, K, A, P) screws [0211]
(Board to rear panel)
and 2 screws [0112].
(Board to bottom frame).
➔Dismount board.
Front Standby board [1001(2)]
➔Remove cable connection.
➔Remove 2 screws [0011].
(Board to Front panel).
➔Dismount board.
Video board [1002]
** B, G models only **
➔Remove cable connection.
➔Remove 4 screws [0218]
(Board to rear panel)
and 2 screws [0118]
(Board to bottom frame).
➔Dismount board.
➔
2.7 mm
When disassembling, use the special screw driver with tip shape in figure.
T10
■DISASSEMBLY PROCEDURES

12
DVD-S540/DV-S5650
DVD-S540
DV-S5650
■分解手順
2.7 mm
分解には図のような特殊ドライバーを使用します。
T10
項目番号については分解図を参照してください。
取り付け
取り外し
Front Display board [1001(1)]
➔
➔
➔
Front Panel [0001]
➔
➔
➔
➔
Top Cover [0250]
➔
➔
DVD Mechanism [0050]
➔
➔
➔
➔
➔
Power supply unit [1003]
➔
➔
➔
➔
MONO board [1004]
➔
➔
➔
Front Standby board [1001(2)]
➔
➔
➔
Video board [1002]
➔
➔
➔
ネジ[0113]４本とネジ
[0261]３本を外します。
カバーを後ろ側から上げ
て取り外します。
ケーブルの接続を外します。
トレーを開けます。
（「手動でトレーを開く方法」を参照）
トレーカバー[0035]を外し、トレーを閉め
ます。
４ヶのスナップ（側面の２ヶ、底部の２ヶ）
を外して、フロントパネルをフレームから
外します。
ケーブルとフレキの接続を外します。 
トレーを開きます
（「手動でトレーを開く方法」を参照）
トレーカバー[0035]を外し、トレーを閉
めます。
DVDメカを底部に取り付けているネジ
[0155]４本を取り外します。
DVDメカを少し持ち上げて後方に動かし
て取り外します。
ケーブルの接続を外します。
ボードをフロントパネルに取り付けて
いるネジ[0010]４本を外します。
ボードを取り外します。
ケーブルの接続を外します。
ボードをリアパネルに取り付けているネ
ジ[0218]4本とボードを底部に取り付け
ているネジ[0118]２本を外します。
ボードを取り外します。
ケーブルの接続を外します。
ボードをフロントパネルに取り付け
ているネジ[0011]２本を外します。
ボードを取り外します。
ケーブルとフレックスの接続を外し
ます。
ボードをリアパネルに取り付けてい
るネジ[0211]4本とMONOボードを
底部に取り付けているネジ[0112]２
本を外します。
ボードを取り外します。
ケーブルを外します。
ボードを底部に取り付けているネジ
[0111]２本を外します。
ボードを底部に取り付けているス
ペーサー２ヶをゆるめます。
ボードを取り外します。

13
DVD-S540/DV-S5650
DVD-S540
DV-S5650
HOW TO MANUALLY EJECT THE TRAY
a. Turn the player bottom up.
b. Move the slider in the direction indicated
with a screw driver until the tray is ejected.
c. Gently pull the tray out.
e
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注）
生産初期の製品はこの孔がないので、下記の
方法でトレーを開けてください。

a. DVDメカを本体から外します。
b. 上下反転します。
 スライダーを矢印の方向に動かします。
c. トレーをそっと引き出します。
Slider / スライダー
Note)
As this hole is not provided in the products
during initial production, open the tray using
the following procedure.
a. Remove the DVD mechanism from the
main unit.
b. Turn it upside down and move the slider
in the direction indicated.
c.
Gently pull the tray out.
手動でトレーを開く方法

a．本体を上下反転します。
b．トレーが出てくるまで、ドライバーでス
ライダーを図に示す矢印の方向に動かし
ます。
c．トレーをそっと引き出します。
Tray / トレー
Tray / トレー Bottom Frame / ボトムフレーム Rear / リア
Front / フロン
ト

14
DVD-S540/DV-S5650
DVD-S540
DV-S5650
Start
Power on
Voltages
at all pins of connector (Ref 1601)
are normal ?
Are
DV33 and V25
normal ?
Display LOGO ? Is
Main Clock
normal ? Check oscillation circuit.
Is
reset signal
normal ? Check reset circuit.
Is signal
on FLASH (item 7611)
normal ?
Is signal
on SDRAM (item 7609)
normal ?
Is input
signal of TV encoder
normal ?
Is output
signal of TV encoder
normal ?
Check the circuit of video
filter, amplifying and cables
with TV
Check peripheral circuit of FLASH (Ref 7611)
Check peripheral circuit of SDRAM (Ref 7609)
Check peripheral circuit of TV
Encoder
Check peripheral circuit of TV
Encoder
A
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
1. Check Cable
2. Replace Power Supply Unit if Mono Board is not shorted,
otherwise find out first where the short is.
Check LD1117 (Ref 7601) and 1N4002 (Ref 6604) and
peripheral circuit.
■MAINTENANCE FLOW CHART

15
DVD-S540/DV-S5650
DVD-S540
DV-S5650
開始
電源ON
コネクター(Ref1601)の
全部のピンの電圧が
正常か ?
1.ケーブルをチェックする
2.MonoP.C.B.がショートしていなければ電源ユニットを交換する
ショートしていたら、最初にショートがどこで起きたか調べる
DV33と
V25は正常か ?
LD1117(Ref7601)と1N4002(Ref6604)と周辺回路をチェックする
LOGOが表示されるか ?
メインクロックは
正常か ?
OSC回路をチェックする
リセット信号は
正常か ?
リセット回路をチェックする
FLASH
（ Ref7611)の信号は 
正常か ?
SDRAM
（Ref7609)の信号は
正常か ?
TVエンコー
ダーの入力信号は
正常か ?
TVエンコー
ダーの出力信号は
正常か ?
ビデオフィルターの回路、増幅回路、
TVの接続ケーブルをチェックする
FLASH(Ref7611)の周辺回路を
チェックする
SDRAM(Ref7609)の周辺回路を
チェックする
TVエンコーダーの周辺回路を
チェックする
A
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
TVエンコーダーの周辺回路を
チェックする
■メンテナンスフローチャート

16
DVD-S540/DV-S5650
DVD-S540
DV-S5650
A
Does the tray
automatically close when
it is open?
Signal TROUT
(Pin 48 of MT1336E) and
TRIN (Pin 47 of MT1336E)
is correct ?
Signal
TRCLOSE & TROPEN
correct ?
Signal
LOAD+ & LOAD-
correct ?
Check the position-switch
on DVD mechanism
Check the circuit between
MT1336E and BA5954
Check BA5954 and peripheral
No No
No
Yes
Yes
No
Yes
Signal
STBY (Pin 28 of BA5954) is
high level ? Check the STBY circuit
Signal FMSO
(Pin 23 of BA5954) is more
than 1.4V ?
Signal SL+
(Pin 17 of BA5954) & SL-
(Pin 18 of BA5954)
correct ?
Check the copper trace or
cable connect to DVD mechanism
Check the FMSO circuit
Check the BA5954
No No
Yes
No
Yes
Yes
No
Yes
Yes
Does
the Optical Pick Up move to find
a disc ?
Has
FOSO (Pin 1 of BA5954)
any signal ?
1. Check the signal from
MT1379BE to BA5954;
2. Maybe MT1379BE is not
working
Signal
F+ (TP13) & F- (TP1)
correct ?
Check the peripheral
circuit of BA5954
Check the cable and
circuit between DVD mechanism
and BA5954
No No
Yes
Yes
No
Yes
B
Check the circuits connecting
to the DVD mechanism
Board Ref Name
MONO 7602 MT1336E
MONO 7603 BA5954
MONO 7606 MT1379BE
Sled automatically
moves to inside when
it is in outside ?

17
DVD-S540/DV-S5650
DVD-S540
DV-S5650
A
トレーが
開いている時、自動的に
閉まるか
?
信号TROUT
(MT1336Eの48ピン)とTRIN
(MT1336Eの47ピン)は
正しいか ?
信号
TRCLOSEとTROPENは
正しいか
?
信号
LOAD+とLOAD-は
正しいか
?
DVDメカを接続する回路を
チェックする
DVDメカ上の
ポジション・スイッチを
チェックする
BA5954と周辺をチェックする

No No
No
Yes
Yes
No
Yes
スレッドが
外周側にある時、自動的に内周側に 
移動するか
?
信号
STBY(BA5954の28ピン)は
"H"レベルか
?
STBYに関連する回路を
チェックする
信号
FMSO(BA5954の23ピン)は
1.4V以上か
?
信号SL+
(BA5954の17ピン)と
SL-(BA5954の18ピン)は
正しいか
?
パターンまたはDVDメカへの
ケーブル接続をチェックする
FMSOに関連する回路を
チェックする
BA5954をチェックする
No No
Yes
No
Yes
Yes
No
Yes
Yes
光ピックアップ
がディスクを見つける動作を
するか
?
FOSO
(BA5954の1ピン)に信号
があるか
?
信号
F+(TP13)とF-(TP1)は
正しいか
?
DVDメカとBA5954間の
ケーブルと回路をチェックする
No No
Yes
Yes
No
Yes
B
1.MT1379BEからBA5954への
信号をチェックする
2.MT1379BEが作動していない
可能性がある
BA5954の周辺回路をチェッ
クする
MT1336EとBA5954間の回路
をチェックする
Board Ref Name
MONO 7602 MT1336E
MONO 7603 BA5954
MONO 7606 MT1379BE

18
DVD-S540/DV-S5650
DVD-S540
DV-S5650
B
When read disc,
Laser on OK ? No Signal
LDO1 and LDO2 are
normal ?
Voltage of
TP22 &TP24
OK ?
Check the circuit to
connect DVD mechanism
or Optical Pick Up maybe damaged
Check the peripheral
circuit of MT1336E
Check the peripheral
circuit of two transistor
(Ref 7620 & 7621)
Check the peripheral
circuit of two transistor
(Ref 7620 & 7621)
No
No
Yes
Yes
Load a disc ?
Yes
Laser off
No
Focus on OK ?
Yes
No
Signal FEO
(pin 18 of MT1336E)
correct ?
Check the circuit from
Pin18 of MT1336E to Pin 205
of MT1379BE
Check the circuit between
Optical Pick Up and MT1336E
Check the peripheral
circuit of MT1336E
No
No
Yes
Yes
Any signal
on pins A B C D E F
of MT1336E
Disc ID correct ?
Yes
No
Check the circuit from
Pin 19 of MT1336E to Pin 206
of MT1379BE
Check the peripheral
circuit of MT1336E and
itself.
No
Signal of
Pin 19 (RFL) of MT1336E
normal ?
Yes
Spindle on OK ? No
Signal SP+
(Pin 11 of BA5954) & SP-
(Pin 12 of BA5954)
correct ?
Check the connection
between spindle driver and
BA5954
Check BA5954 (motor
driver) and its peripheral
circuit
No
No
Yes
Yes
DMSO
(pin 18 of MT1379BE)
normal ?
Yes
Check MT1379BE and its
peripheral circuit.
C
Board Ref Name
MONO 7602 MT1336E
MONO 7603 BA5954
MONO 7606 MT1379BE

19
DVD-S540/DV-S5650
DVD-S540
DV-S5650
B
ディスクの読み取り時に
レーザーONはOKか
? No
信号
LDO1とLDO2は
正常か
?
TP22と
TP24の電圧は
OKか
?
DVDメカを接続している回路を
チェックする
光ピックアップが損傷している
かもしれない
MT1336Eの周辺回路を
チェックする
２個のトランジスター
（Ref7620と7621）の
周辺回路をチェックする

２個のトランジスター
（Ref7620と7621）の
周辺回路をチェックする
No
No
Yes
Yes
ディスクが搭載されているか ?
Yes
レーザーOFF
No
フォーカスONはOKか ?
Yes
No
信号
FEO(MT1336Eの18ピン)は
正しいか
?
MT1336Eの18ピンから
MT1379BEの205ピンへの
回路をチェックする
光ピックアップとMT1336E間
の回路をチェックする
MT1336Eの周辺回路を
チェックする
No
No
Yes
Yes
MT1336Eの
ピンA,B,C,D,E,Fのどれ
かの信号がONになって
いるか
?
ディスクのIDは正しいか ?
Yes
No
MT1336Eの19ピンから
MT1379BEの206ピンへの
回路をチェックする
MT1336Eとその周辺回路を
チェックする
No
RFL
(MT1336Eの19ピン)の信号は
正常か
?
Yes
スピンドルONはOKか ? No
信号SP+
(BA5954の11ピン)とSP-
(BA5954の12ピン)の信号
は正しいか
?
スピンドル・ドライバーと
BA5954間の接続を
チェックする
BA5954とその周辺回路を
チェックする
No
No
Yes
Yes
DMSO
(MT1379BEの18ピン)は
正常か
?
Yes
C
MT1379BEとその周辺回路を
チェックする
Board Ref Name
MONO 7602 MT1336E
MONO 7603 BA5954
MONO 7606 MT1379BE

20
DVD-S540/DV-S5650
DVD-S540
DV-S5650
C
Track on OK ? No
Signal TRSO
(pin13 of MT1379BE)
normal ?
Check the connection
between Optical Pick Up and
BA5954
Check the connection
between MT1379BE (pin 13)
and MT1336E (pin 26)
No
No
Yes
Signal TEO
(pin 21 of MT1336E)
normal ?
Check MT1336E and its
peripheral circuit.
Yes Signa l
T+ (TP3) & T- (TP14)
normal ?
No
Yes
Yes
Check BA5954 and its
peripheral circuit.
Disk is READY ? Check RF Signal
No
Audio signal is normal ? No
Output signal is
correct ?
Check the circuit of
filter, amplifier, and mute
etc.
Check AKM4382A
and its periperal circuit
No
No
Yes
AKM4382A receive
correct data ? Check connection between
MT1379BE and AKM4382A
Yes
Yes
TSOP2236,
FL display and Key
fuction OK ?
No No
TSOP2236,
uPD16312GB communicate
with MT1379BE
OK ?
Check connection between
MT1379BE and uPD16312GB
and its periperal circuit
Yes
Check Remote Control
Check KEY matrix
Check connection of FL display
Yes
END
Yes
Board Ref Name
DISPLAY 7100 uPD16312GB
DISPLAY 7101 TSOP2236
MONO 7602 MT1336E
MONO 7603 BA5954
MONO 7606 MT1379BE
MONO 7615 AKM4382A