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DVD-1930CI / DVD-757

Please heed the points listed below during servicing and inspection.

Heed the cautions!

Spots requiring particular attention when servicing, such as
the cabinet, parts, chassis, etc., have cautions indicated on
labels or seals. Be sure to heed these cautions and the cau-
tions indicated in the handling instructions.

Caution concerning electric shock!

(1) An AC voltage is impressed on this set, so touching inter-

nal metal parts when the set is energized could cause
electric shock. Take care to avoid electric shock, by for ex-
ample using an isolating transformer and gloves when
servicing while the set is energized, unplugging the power
cord when replacing parts, etc.

(2)There are high voltage parts inside. Handle with extra care

when the set is energized.

Caution concerning disassembly and assembly!

Though great care is taken when manufacturing parts from
sheet metal, there may in some rare cases be burrs on the
edges of parts which could cause injury if fingers are moved
across them. Use gloves to protect your hands.

Only use designated parts!

The set's parts have specific safety properties (fire resis-
tance, voltage resistance, etc.). For replacement parts, be
sure to use parts which have the same properties. In particu-
lar, for the important safety parts that are marked   !   on wiring
diagrams and parts lists, be sure to use the designated parts.

Be sure to mount parts and arrange the

wires as they were originally!

For safety reasons, some parts use tape, tubes or other insu-
lating materials, and some parts are mounted away from the
surface of printed circuit boards. Care is also taken with the
positions of the wires inside and clamps are used to keep
wires away from heating and high voltage parts, so be sure to
set everything back as it was originally.

Inspect for safety after servicing!

Check that all screws, parts and wires removed or discon-
nected for servicing have been put back in their original posi-
tions, inspect that no parts around the area that has been
serviced have been negatively affected, conduct an insulation
check on the external metal connectors and between the
blades of the power plug, and otherwise check that safety is
ensured.

(Insulation check procedure)
Unplug the power cord from the power outlet, disconnect the
antenna, plugs, etc., and turn the power switch on. Using a
500V insulation resistance tester, check that the insulation re-
sistance between the terminals of the power plug and the ex-
ternally exposed metal parts (antenna terminal, headphones
terminal, microphone terminal, input terminal, etc.) is 1M

Ω

 or

greater. If it is less, the set must be inspected and repaired.

Concerning important safety parts

Many of the electric and structural parts used in the set have
special safety properties. In most cases these properties are
difficult to distinguish by sight, and using replacement parts
with higher ratings (rated power and withstand voltage) does
not necessarily guarantee that safety performance will be pre-
served. Parts with safety properties are indicated as shown
below on the wiring diagrams and parts lists is this service
manual. Be sure to replace them with parts with the designat-
ed part number.

(1) Schematic diagrams ... Indicated by the   !   mark.
(2) Parts lists ... Indicated by the   !   mark.

Using parts other than the designated parts
could result in electric shock, fires or other
dangerous situations.

SAFETY PRECAUTIONS

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

LEAKAGE CURRENT CHECK

Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis
resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power
cord is less than 460 kohms, the unit is defective.

LASER RADIATION

Do not stare into beam or view directly with optical instruments, class 3A laser product.

CAUTION

CAUTION

サービス、点検時にはつぎのことにご注意願います。

◎注意事項をお守りください!

サービスのとき特に注意を必要とする個所についてはキャ
ビネット、部品、シャーシなどにラベルや捺印で注意事項を
表示しています。これらの注意書きおよび取扱説明書などの
注意事項を必ずお守りください。

◎感電に注意!

(1) このセットは、交流電圧が印加されていますので通電時

に内部金属部に触れると感電することがあります。従っ
て通電サービス時には、絶縁トランスの使用や手袋の着
用、部品交換には、電源プラグを抜くなどして感電にご
注意ください。

(2) 内部には高電圧の部分がありますので、通電時の取扱に

は十分ご注意ください。

◎分解、組み立て作業時のご注意!

板金部品の端面の『バリ』は、部品製造時に充分管理をして
おりますが、板金端面は鋭利となっている箇所が有りますの
で、部品端面に触れたまま指を動かすとまれに怪我をする場
合がありますので十分注意して作業して下さい。手の保護の
ために手袋を着用してください。

◎指定部品の使用!

セットの部品は難燃性や耐電圧など安全上の特性を持った
ものとなっています。従って交換部品は、使用されていたも
のと同じ特性の部品を使用してください。特に配線図、部品
表に   

!

   印で指定されている安全上重要な部品は必ず指定の

ものをご使用ください。

◎部品の取付けや配線の引きまわしは、

 元どおりに!

安全上、テープやチューブなどの絶縁材料を使用したり、プ
リント基板から浮かして取付けた部品があります。また内部
配線は引きまわしやクランパーによって発熱部品や高圧部
品に接近しないように配慮されていますので、これらは必ず
元どおりにしてください。

◎サービス後は安全点検を!

サービスのために取り外したねじ、部品、配線などが元どお
りになっているか、またサービスした個所の周辺を劣化させ
てしまったところがないかなどを点検し、外部金属端子部
と、電源プラグの刃の間の絶縁チェックをおこなうなど、安
全性が確保されていることを確認してください。

(絶縁チェックの方法)

電源コンセントから電源プラグを抜き、アンテナやプラグな
どを外し、電源スイッチを入れます。500V 絶縁抵抗計を用
いて、電源プラグのそれぞれの端子と外部露出金属部[アン
テナ端子、ヘッドホン端子マイク端子、入力端子など]との
間で、絶縁抵抗値が1 MΩ 以上であること、この値以下の
ときはセットの点検修理が必要です。

安全上重要な部品について

本機に使用している多くの電気部品、および機構部品は安全
上、特別な特性を持っています。この特性はほとんどの場合、
外観では判別つきにくく、またもとの部品より高い定格(定
格電力、耐圧)を持ったものを使用しても安全性が維持され
るとは、限りません。安全上の特性を持った部品は、この
サービスマニュアルの配線図、部品表につぎのように表示し
ていますので必ず指定されている部品番号のものを使用願
います。

(1) 配線図…  !  マークで表示しています。

(2) 部品表…  !  マークで表示しています。

指定された部品と異なるものを使用した場合に
は、感電、火災などの危険を生じる恐れがあり
ます。

注 意

注 意

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TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

http://www.xiaoyu163.com

http://www.xiaoyu163.com

Summary of Contents for DVD-1930CI

Page 1: ...rvice manual with referring to the operating instructions without fail For purposes of improvement specifications and design are subject to change without notice 8 For U S A Canada model Pleaserefer t...

Page 2: ...ave been negatively affected conduct an insulation check on the external metal connectors and between the blades of the power plug and otherwise check that safety is ensured Insulation check procedure...

Page 3: ...1 2 Coaxial Digital Out 75 load mVpp 500 50 3 Audio PCM 3 1 Output Level 1 kHz 0 dB Vrms 2 0 3 2 S N dB 115 3 3 Freq Response DVD fs 48 kHz 20 Hz 22 kHz dB 1 0 CD fs 44 1 kHz 20 Hz 20 kHz dB 1 0 3 4 T...

Page 4: ...ut terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Power ON Insert load Z between B earth ground power cord plug prongs...

Page 5: ...ezers while applying the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then...

Page 6: ...soldering iron or a hot air desoldering machine Fig S 1 4 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat...

Page 7: ...eld by glue When the flat pack IC is removed from the CBA handle it gently because it may be damaged if force is applied 2 Installation 1 Using desoldering braid remove the solder from the foil of eac...

Page 8: ...conductive sheet or copper plate with proper grounding 1 M on the workbench or other surface where the semi conductors are to be placed Because the static electricity charge on clothing will not escap...

Page 9: ...2 5 Front Assembly D3 6 Reinforce Plate D4 2 S 3 7 Rear Panel D4 8 S 4 S 5 S 6 2 S 7 4 8 DVD Main CBA Unit D5 3 S 8 CN201 CN301 CN401 CN601 CNS01 CNF02 2 4 9 Interface CBA D6 S 9 1 Top Cover 5 Front...

Page 10: ...le CN201 the laser diode of pickup will be destroyed Fig D5 2 Disconnect Connectors CN301 CN401 and CN601 Remove three screws S 8 and lift the DVD Main CBA Unit Fig D5 3 CAUTION 3 When reassembling co...

Page 11: ...ng Either of two places View for A FPC Cable S 11 S 12 12 Jack PCB Holder 11 5 1ch Amp CBA L 5 Fig D6 9 Interface CBA 10 D Sub Holder S 9 S 10 CN7101 Fig D7 13 DVD Mechanism S 13 www xiaoyu163 com QQ3...

Page 12: ...Fig D8 16 Loader Base 18 Main PCB Holder S 16 Fig D9 S 16 S 18 17 Power PCB Holder S 17 A View for A Rotate this roulette in the direction of the arrow www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8...

Page 13: ...reen When OK appears on the screen the factory default will be set 3 To exit this mode press POWER OFF button MODEL Version Region EXIT POWER EEPROM CLEAR CLEAR Fig a differs depending on the models M...

Page 14: ...d from the AC outlet Then plug it again 8 Turn the power on by pressing the POWER ON button and the tray will close 9 Press 1 2 3 4 and DISPLAY buttons on the remote control unit in that order Fig g a...

Page 15: ...e is complete 11 To exit this mode press POWER OFF button MODEL Version Region EEPROM CLEAR OK EXIT POWER EEPROM CLEAR CLEAR differs depending on the models Fig h www xiaoyu163 com QQ376315150 9 9 2 8...

Page 16: ...IC1006 and their periphery and service it if defective FLOW CHART NO 5 FL is not outputted Is approximately 23V voltage supplied to the anode of D1003 Check D1003 and periphery circuit and service it...

Page 17: ...ormally Refer to FLOW CHART NO 6 P ON 10V EV 10V is not outputted Yes Yes No FLOW CHART NO 10 EV 1 2V is not outputted Is 2 5V voltage supplied to Pin 3 of IC1002 Replace IC1002 Check D1006 C1014 L100...

Page 18: ...ce DVD Main CBA Unit Is 5V voltage supplied to Pin 3 terminal of the infrared remote control receiver RM2001 Yes No Check EV 5V line and service it if defective No No Yes Yes Yes Yes Yes Yes No No No...

Page 19: ...place the DVD Mechanism No Yes Yes FLOW CHART NO 15 The disc tray cannot be opened and closed Replace the DVD Main CBA Unit Original DVD Main CBA Unit is poor Replace the DVD Mechanism No improvement...

Page 20: ...e VIDEO OUT terminal JK1404 FLOW CHART NO 20 Picture does not appear normally Set the disc on the disc tray and playback Are the video signals outputted to each pin of CN1601 on the AV CBA Replace the...

Page 21: ...y between Pins 1 7 of IC1201 and JK1201 and service it if detective Check each line between each pin of CN1601 and each pin of IC1201 on AV CBA and service it if detective CN1601 12PIN IC1201 2PIN AUD...

Page 22: ...pin of IC7301 IC7401 and IC7501 Are the analog audio signals outputted to each pin of IC7301 IC7401 and IC7501 IC7301 1 7PIN FRONT L R IC7401 1 7PIN SURROUND L R IC7501 1 7PIN CENTER SUBWOOFER Yes Yes...

Page 23: ...SLED MOTOR DRIVE FOCUS ACTUATOR DRIVE SPINDLE MOTOR DRIVE TRACKING ACTUATOR DRIVE 144 TRAY IN SLD 91 SPDL 90 TRACKING DRIVE 145 FOCUS DRIVE 89 FS FS TS TS 77 ADAC MD 78 ADAC MC 79 ADAC ML ADAC MC ADAC...

Page 24: ...PDIF SD1 SD2 SD3 SD4 SD5 SD6 166 SD7 194 XSHD 192 XSAK 193 SDCK XSHD XSAK SDCK 255 SACD RESET 195 XSRQ 191 SDEF SACD RESET XSRQ SDEF PSP WCK SACD READY SACD DATA PSP WCK SACD READY SACD DATA SACD LATC...

Page 25: ...2 TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM DVD MAIN CBA UNIT AV CBA COMPOSITE VIDEO OUT VIDEO Pb Cb OUT VIDEO Y OUT VIDEO Pr Cr OUT JK1404 TO AUDIO BLOCK DIAGRAM HDCP ENCRYPTION ENGINE HDCP KEYS EEPROM...

Page 26: ...AUDIO MUTE2 9 3 AUDIO MUTE 8 2 M MUTE MUTE ON 1 7 2 6 MUTE ON IC7301 Q7307 Q7308 AMP FRONT L OUT FRONT R OUT Q7302 JK7101 Q7301 MUTE ON 1 7 2 6 Q7351 Q7352 MUTE ON IC7401 Q7403 Q7404 AMP SURROUND L O...

Page 27: ...164 165 173 174 175 176 169 170 171 172 11 PCM SCLK 148 149 151 152 154 157 159 162 131 134 136 139 19 24 27 32 2 3 5 6 8 9 11 12 55 56 ADAC MD ADAC MC ADAC MD ADAC MC 3 4 CLK33M TO SYSTEM CONTROL SER...

Page 28: ...ectable power supply circuit is used in this unit If Main Fuse F1001 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC po...

Page 29: ...this manual carefully The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock fire or other hazards Notes 1 Do not use...

Page 30: ...t parts which are listed with their part numbers in the parts list section of the service manual 4 Voltage indications for PLAY and STOP mode on the schematics are as shown below 5 How to read converg...

Page 31: ...ed for DVD MAIN CBA UNIT w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 89249829...

Page 32: ...w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 37631515...

Page 33: ...1 2 3 2 3 163 1 7 1 7 195 0 1 0 1 227 3 2 3 2 0 1 132 2 4 2 3 164 0 0 196 0 0 228 3 2 3 2 0 1 133 2 4 2 4 165 1 3 1 3 197 3 5 3 5 229 3 1 3 1 3 5 134 2 4 2 4 166 1 5 1 5 198 230 0 8 135 2 3 2 3 167 1...

Page 34: ...w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 37631515...

Page 35: ...w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 37631515...

Page 36: ...w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 37631515...

Page 37: ...w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 37631515...

Page 38: ...w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 37631515...

Page 39: ...asured using hot GND as a common terminal Ce symbole repr sente un fusible fusion rapide CAUTION For continued protection against fire hazard replace only with the same type fuse ATTENTION Pour une pr...

Page 40: ...x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150...

Page 41: ...e f g c d e f g c d e f g h h h i a b c d e g a b a b a b a b a b c d e f g a b FL2001 MATRIX CHART SACD ALL DVD RPT CD A TL GR TR CP A B PSCAN 2 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9...

Page 42: ...x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150...

Page 43: ...x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150...

Page 44: ...0 s VIDEO CVBS 0 5V 20 s AUDIO L AUDIO L 0 5V 0 5ms 0 5ms AUDIO R AUDIO R 0 5V 0 5ms 0 5ms SPDIF 1V 0 1 s NOTE Input DVD COLOR BAR SIGNAL WITH 1KHz AUDIO SIGNAL WF1 WF6 www xiaoyu163 com QQ376315150 9...

Page 45: ...13 AUDIO R 14 14 FS TS DETECTOR 7 9 11 2 3 6 5 M SLED MOTOR M SPINDLE MOTOR SPDIF 16 16 AUDIO 5V 17 17 AUDIO 5V 18 18 AUDIO R MUTE 19 19 4 CN2002 CN2102 EV 5V 1 1 POWER LED 2 2 STANDBY LED 3 3 GND 4 4...

Page 46: ...Y TE6 F M KTA1266 Y AT P KTA1273 Y AT P KTC3205 Y AT P 2SC1815 GR TE2 F T KTA1267 Y AT P KTC3199 GR AT P KRA105M AT P KRA110M AT P EL817B EL817C LTV 817C F PS2561A 1 W KIA2431AP AT P TL432A TA MM1637X...

Page 47: ...JK2321 2L109 2L108 2B6 AV CBA 2B5 JK1401 JK1404 JK1201 LED CBA F1001 2L041 JK3501 See Electrical Parts List for parts with this mark Some Ref Numbers are not in sequence Function CBA DVD Main CBA Unit...

Page 48: ...2B3 00D9H2 6000 756 MAIN PCB HOLDER 1VM320650 1 2B4 00D9H2 6000 780 LOADER BASE 0VM101367G 1 2B5 FIP SUPPORT ASSEMBLY 1VM424564 1 2B6 00D9H2 6000 757 JACK PCB HOLDER 0VM101376E 1 2B9 00D9H2 6000 758 D...

Page 49: ...X4 X12 X21 X1 A30 A30 A35 A35 for DVD1930CIBKE3 only 2 2 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299...

Page 50: ...S1 00D9H2 6000 760 GIFT BOX CARTON 1VM323276 A 1 S1 00D9H2 6000 761 GIFT BOX CARTON 1VM323277 B 1 S2 00D9H2 6000 619 STYROFOAM 0VM101298B 1 S4 00D9H2 6000 693 SET BAG 0DM400731D 1 X1 00D9H2 6000 653 R...

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