Denon-DVD2200-sacd-sm维修电路原理图.pdf
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1、SERVICE MANUALMODEL DVD-2200DVD AUDIO-VIDEO / SUPER AUDIO CD PLAYER16 11, YUSHIMA 3 CHOME, BUNKYO KU, TOKYO 113 0034 JAPAN X0188V.01 DE/CDM 0308For U.S.A., Canada & Europemodel前、必読。本機、火災、感電、対安全性確保配慮、法的電気用品安全法、所定許可得製造。従際、安全性維持、記載注意事項必守。本機仕様性能改良、予告変更。Please use this service manual with referring to th
2、e operating instructions without fail.Some illustrations using in this service manual are slightly different from the actual set.修理際、必取扱説明書参照上、作業行。本文中使用、説明都合上現物多少異場合。補修用性能部品保有期間、製造打切後8年。注意For purposes of improvement, specifications anddesign are subject to change without notice.RadioFans.CN 收音机爱 好者资
3、料库22DVD-2200SAFETY PRECAUTIONSThe following check should be performed for the continued protection of the customer and service technician.LEAKAGE CURRENT CHECKBefore returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassisresistance check. If
4、 the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of thepower cord is less than 460 kohms, the unit is defective.LASER RADIATIONDo not stare into beam or view directly with optical instruments, class 3A laser product.(1)(2)500V1M(1)(2)RadioFans.CN 收音机爱 好者资料
5、库33DVD-2200A-partA straight ruler etc.Fig. The left side view of the Mechanism.DISASSEMBLY(Follow the procedure below in reverse order when reassem-bling.)After removing the Top Cover, proceed as follows.1.Loader Panel, Front Panel1.1. When the Disc Tray can be ejected electrically(1) Plug the power
6、 cord to the wall outlet, switch on the pow-er, and press the OPEN/CLOSE button to open the Disc Tray.(2) Detach the Loader Panel by lifting it in the arrow direc-tion.(3) Press the OPEN/CLOSE button to close the Disc Tray, then unplug the power cord.(4) Remove 2 top screws and 4 bottom screws, then
7、 detach the Front Panel to the arrow direction.1.2. When the Disc Tray cannot be ejected electrically(1) Insert a straight ruler etc. into the left side of the Mecha. Unit and push the A-part (see Fig.) to open the Disc Tray manually.(2) Detach the Loader Panel by lifting it in the arrow direc-tion.
8、(3) Push the Disc Tray to close it manually.(4) Detach the Front Panel following the same steps de-scribed on the previous page 1.1.1. (4).Power SwitchFront PanelLoader PanelOPEN/CLOSEbutton? ? !#$%?&?()?*+?,- ./0?123?/$4$123?,- ./0?123?/$4$123?,-,-5678?9:;$!0?A,B CD$E%CD0F0?GH?I?$!0?*+?AXB /$4$123%
9、YZ?G_?*+?AaBLMNOPQRSMTOUVW0%K?5678?9:%8/$b?CD0F0?cCD$E%d?*+?AeB _?cfg X h?i?cfg e h%?./0?123%YZ?G?*+?,-X-5678?9:;$!0?j?A,B klm ?no?cpqr%H?I?s ?%K?5678?9:%$!0?*+?AXB /$4$123%YZG_?*+?AaB 5678?9:%K?8/$b?*+?AeB tu ,-,-,- ?e?vwG?./0?123%?*+?44DVD-22002.DVD Mecha.(1) Remove 4 screws fixing the Mecha. Cove
10、r and detach the Mecha. Cover.(2) Remove 4 screws on the DVD Mecha. and 2 screws on the Main P.W.B., then take it off in the arrow direction.3.Mecha.Unit(1) Remove 2 screws on the top of the Mecha. Unit, and de-tach the Guide Clamp Bracket with sliding in the arrow di-rection.(2) Solder the short-ci
11、rcuit on the Traverse Unit. (Refer to Traverse Unit Disassembly on page 5.(3) Disconnect the wires (CX151, CX241, CX031, CX051) connecting with the Main PWB.(4) Turn over the Mecha. Unit/Main PWB assembly, and re-move 3 screws.DVD Mecha.X X- xyx k?- xyx k?A,B k#$?z|fg% h?k#$%z?*+?AXB xyx k?cfg e h?k
12、:0?cfg X h%?YZ? xyx k%?*+?a- klm ?a- klm ?A,B k?_?cfg X h%?:E8?0!? ?%YZG?c?j;c?*+?AXB E?:#$k?$?$? ?%?|?*+? ?#$7lm ? ?$?AaB k:0?:?$?R?,? R?Xe,?R?a,? R?,?%?*+?AeB ?klm ? Q k:0?%?fg X h%?*+?55DVD-22004.Traverse Unit DisassemblyCaution: The optical pickup can be damaged easily by static electricity char
13、ged on human body. Take necessary anti-static measures when repairing around the optical pickup.4.1. Guide Clamp Bracket disassembly(1) Remove 2 screws.(2) Remove Guide Clamp Bracket to arrow direction.4.2. Tray disassembly(1) Remove to arrow direction.(2) Solder the short-circuit (see in the frame)
14、.e- ?#$7lm ?e- ?#$7lm ? 8 !?G?r?+?;*+? 8 !“%+?fi?fl?j%?e-,-?:E8?0!? ?A,B fg X h%?*+?AXB ?:E8?0!? ?%YZG?*+?e-X-?9:?A,B YZG?*+?AXB ?|?$?%?*+? ? B66DVD-22004.3. Traverse Unit disassembly(1) Remove 24P FFC (CX241), 15P FFC (CX151), 5P PH WIRE (CX051) and 3P PH WIRE (CX031) connecting with from the Main
15、P.W.B.(2) Remove 4 screws fixing Damper.(3) Remove Traverse Unit to arrow direction.Note for disassembly Traverse Unit(1) When assembling, reverse the order of the above.(2) When inserting Tray, confirm boss on Slide Cam set to ditch of the Tray (Compare with below drawing).e-a-?#$7lm ?A,B k:0?G? Xe
16、N R?R?Xe,B?,N R?R?,B?N N ?:?R?,B?aN N ?:?R?a,B%?*+?AXB 401$%p?fg e h%?*+?AaB ?#$7lm ?%YZG?*+?#$7lm ?”?A,B ?_?A,B ?9:?I?7?:E?V7;?9:?G? ?i?77DVD-2200DIAGNOSTICS OF OPTICAL PICKUPAND REPLACING TRAVERSE UNITMake failure diagnostics of the Optical Pickup as follows.If the laser drive current becomes more
17、 than 1.5 times of theinitial value, the Optical Pickup should be replaced.The laser drive current is registered on the seal attached tothe rear of the Mecha.Unit.In case of replacing the Pickup, change the whole part of theTraverse Unit.No mechanical adjustment is necessary after the replace-ment.?
18、 8 !?#$7lm ? 8 !?#$7lm ?%?9$?=;? ,- _Gj? 8 !?j*+?9$?k?$3_G?*+? 8 !?#$7lm ?j*+?k?+? Disc no read,unsteady playback, etc.Laser drive current checkHF wave form check(Refer to WAVE FORMS)Traverse Unit replacing (See page 5 for details)Laser current registering after replacement.Present value exceeds the
19、 ini-tial value by 1.5 timesStep: Disc playbackWrite the measured value on the seal attached to the Mecha. Unit*As to the measuring method, refer to page 9. Example:DVD 30mACD 30mA?5678%?I*j?7$bG?j?r9$?=? ? WAVE FORMS ?#$7lm ? ?$?9$E?lm ?%+?i%?A,B?lm ?$?3%?+? $E?XeN R ?$?3%?+tG?0E%?|?$?AeB?lm ?D28W?
20、G?j?a-9$? 8 ! A ?#$7lm ? B ?a-9$? 8 ! A ?#$7lm ? B ?A 9$?=?%J? 8?*+? ? ;? ?%?#$7lm ?9$? 8 !?%?e-? ?p?e-? ?p?9$?=%?p+?i?5678?Rx?xyxB %?*+? ?_?7?:0?y?sX ? SxARxB?SxAxyxB?G?Rx 9$? xyx 9$? ? %?p?7?5678?xyxQxyx?T?, *?vr5678?RxQ?Rx?e?sS?OxM ?*?vr5678Laser current consumption value ex) DVD ? mA, CD ? mA9$?
21、=?DVD ? mA, CD ? mA99DVD-22004.1. DVD Laser current measurement(1) Connect the oscilloscope to +5V-A2 of test point for GND side and LD(DVD) of test point for signal side.(2) Playback the title 1 / chapter 1 of the DVD Test Disc.(3) Measure the voltage between +5V-A2 and LD(DVD), cal-culate Iop by t
22、he formula as shown below. 4.2. CD Laser current measurement(1) Connect the oscilloscope to +5V-A2 of test point for GND side and LD(CD) of test point for signal side.(2) Playback the track 1 of the CD Test Disc.(3) Measure the voltage between +5V-A2 and LD(CD), calcu-late Iop by the formula as show
23、n below.LD(DVD)+5V-A2OscilloscopeIopMeasurement Voltage Value14 (Resistance value)- -=IopMeasurement Voltage Value11.75 (Resistance value)- -=e-,-xyx 9?/7D$!%?7?:0?y?sXA?PxB?SxAxyxBA ? B ?*+?AXBxyx ?7?5678?W:?3 , J!W$, %?*+?AaB?y?sX ? SxAxyxB ?#%?p?$G% ? %&?*+?e-X-Rx9?/7D$!%?7?:0?y?sXA?PxB?SxARxBA ?
24、 B ?*+?AXBRx ?7?5678? 8 , %?*+?AaB?y?sX ? SxARxB ?#%?p?$% ? %&?*+?LD(DVD)+5V-A2Oscilloscope?p#,eA()B? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?*?p?5678?,? W:?3_?4? ?A5Bh?6p?i6p7qp8?.$?0/,$E?9:%9|?&? xyx lm ?L?VW0U?L9 Q :VW0U%vGK?j;cLCVW0U%K?F ?C%?S ;?$?0,$EG6p?AXB ?A?B_?.$?0/,$EG6p+?A5B?9:G xyx ?5678%?
25、L?VW0U% X K?S ;?$8;=AGj?L5678?W:?3 , ?W:?3 ,? %?9:%B=?9 Q :?CW:?3 , ?%?D? U.$?0/=(Gj*+?E?F?.?$G?E+?*?=(%B=?G?*+?xyx ?G.?$;H?S ;Gi?.?$;?*+?X-?6p,$EX-?6p,$EA,B 01A?B?23?8A5Bh?6p?i?7qp8?AXB ?A?B?$+7G?:D0I:D0“?Ik:0?%?JKJ !9$?$?L%?A5BF ?L%i?M?N,$EG6p+?F ?;E&G?JKJ O(?L?VW0U?L9 Q :VW0U?LA 7? !?VW0U? a ?K?%
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