Marantz-SR4300-avr-mz03047 电路图 维修手册.pdf

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1、Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:31-Oct.-2003Model: SR4300/SR4400 Page:1 / 3REF.NBR:MZ03-047 Circulation:Application: Subject: Int.ref: PHENOMENON 1) The protection circuit does not work when the power transistor was damaged. 2) When the power

2、transistor was damaged, about 40 V outputs to speaker out. 3) The protection circuit function does not operate, then the unit will not be in POWER STANDBY mode and the speaker output RELAY does not work. REASON 1) When the transistor is damaged before turn on the unit, the micro processor can not de

3、tect protection signal (Protect2). 2) Turn on the unit, the down edge of a protection signal (Protect2) is undetectable for about 2 seconds after the micro processor reset SOLUTION The protection output signal of Protection IC is added to the SPK MUTE signal in hard, and Speaker MUTE is always set t

4、o “ON” when abnormal occur protection 1.SR4300 DIGITAL/AUDIO PCB 1) Chip Resistor LS850 (100 ohm 1/16W part no. NN05101610 ) is changed to Silicon Diode (Part no. *HD201810R- 1SS400 POHM: EMD2, EIAJ: SC-79, JEDEC: SOD-523 ). MAIN PCB 2) Chip Resistor DN601(Part no.HD20002000-Silicon Diode 1SS254 ROH

5、M) is added between BASE of QN606 SEMICOM.COMP and No.5 pin of JFN101 Connector 2.SR4400 DIGITAL/AUDIO PCB 1) Chip Resistor RS928 (100 ohm 1/16W part no. NN05101610 ) is changed to Silicon Diode (Part no. *HD201810R- 1SS400 POHM: EMD2, EIAJ: SC-79, JEDEC: SOD-523 ). MAIN PCB 2) Chip Resistor DN601(P

6、art no.HD20002000-Silicon Diode 1SS254 ROHM) is added between BASE of QN606 SEMICOM.COMP and No.5 pin of JFN101 Connector As for the details, Please see page2/3 and 3/3 REMARKS The countermeasure apply to this claim only. This problem apply to the Service code number XE00 xxxxxxxxxx. This improvemen

7、t has been done in the production the Service code number XE01xxxxxxxxx and after. SERVICE BULLETIN The problem of the Speaker protection circuit. x for information customer complaint in case of service mandatory . Service code XE00 XE00 xxxxxxxxxx RadioFans.CN 收音机爱 好者资料库 Approved by S.NAGAO Written

8、 by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) SR4300/SR4400 SERVICE BULLETIN (REF.NBR:MZ03-047) page2/3 SR4300 LS850 is changed to Part no. *HD201810R Caution JFS08 (FPC CONNECTOR) side is CATHODE DIGITAL/AUDIO PCB No.5 pin of JFN101 BASE of QN606 Adhesives: SC608LVZ (Sony Chemical Corp.

9、Self-extinguishing adhesive) or the equivalent Insulation tube is used MAIN PCB DN601 Part no. HD20002000 CATHODE MARK RadioFans.CN 收音机爱 好者资料库 Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) SR4300/SR4400 SERVICE BULLETIN (REF.NBR:MZ03-047) page3/3 SR4400 CATHODE

10、MARK RS928 is changed to Part no. *HD201810R Caution JFS08 (FPC CONNECTOR) side is CATHODE DIGITAL/AUDIO PCB No.5 pin of JFN101 BASE of QN606 Adhesives: SC608LVZ (Sony Chemical Corp. Self-extinguishing adhesive) or the equivalent Insulation tube is used MAIN PCB DN601 Part no. HD20002000 RadioFans.C

11、N 收音机爱 好者资料库 Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:30-June-2003Model: SR4300,SR4400 Page:1 / 1REF.NBR:MZ03-025 Circulation:Application: Subject: Int.ref: PHENOMENON The problem occurs in the following operation. 1. First, RDS(Radio Data System) in t

12、he FM signal is received. 2. Then preset memory newly. 3. Then press the POWER button on the remote controller , the unit became Standby mode. 4. Again, press the POWER button on the remote controller, the volume level becomes “ - ” and Frequency indication becomes the setup of default. (This proble

13、m occurs only SR4300/N1B/N1G/A1B/A1G and SR4400/N1B/N1S/A1B/A1S) SOLUTION Replace MICRO PROCESSOR(Flash) ICS18 on the DIGITAL/AUDIO PCB. NECESSARY PART 1. SR4300 POS.NO ICS18 Part no. *HS09AWH0R New version no: VER .030527 (H8/3026F Flash Ver.030527 wrote FACTORY PART No. OICH83026F43SV0527) OLD par

14、t no. *HU100620R FACTORY PART No. OICH83026F 2. SR4400 POS.NO ICS18 Part no. *HS26AWH0R New version no: VER .030515 (HD6433026D04F Mask Ver.030515 FACTORY PART No. OICHD6433026D04F) OLD part no. *HU100620R FACTORY PART No. OICH83026F Version no can be confirmed with SERVICE MODE, Refer to service ma

15、nual of SR4300 page56 or SR4400 page52. REMARKS 1. The countermeasure apply to this claim only. 2. This improvement has been done in the production the serial no.XE000322xxxxxx and after (SR4400) 3. The production of SR4300/N1B/N1G/A1B/A1G has been finished. SERVICE BULLETIN FM(with RDS) signal is r

16、eceived, Frequency Indication becomes the setup of default by the remote control operation . (only N and A version occurs) x for information customer complaint in case of service mandatory . See Below Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:30-June-20

17、03Model: SR4300,SR4400 Page:1 / 1REF.NBR:MZ03-023 Circulation:Application: Subject: Int.ref: PHENOMENON When the playback CD-R/RW of Digital that SCMS(Serial Copy Management System) signal was recorded, The sound is interrupted SOLUTION Replace MICRO PROCESSOR(Flash) ICS18 on the DIGITAL/AUDIO PCB.

18、NECESSARY PART 1. SR4300 POS.NO ICS18 Part no. *HS09AWH0R New version no: VER .030527 (H8/3026F Flash Ver.030527 wrote FACTORY PART No. OICH83026F43SV0527) OLD part no. *HU100620R FACTORY PART No. OICH83026F 2. SR4400 POS.NO ICS18 Part no. *HS26AWH0R New version no: VER .030515 (HD6433026D04F Mask V

19、er.030515 FACTORY PART No. OICHD6433026D04F) OLD part no. *HU100620R FACTORY PART No. OICH83026F Version no can be confirmed with SERVICE MODE, Refer to service manual of SR4300 page56 or SR4400 page52. REMARKS The countermeasure apply to this claim only. This improvement has been done in the produc

20、tion the serial no.XE000323xxxxxx and after (SR4300) the serial no.XE000322xxxxxx and after (SR4400/N1B/N1S) SR4400/A1B/A1S/K1S/K1G/U1B have used New MICRO PROCESSOR. Therefore, this problem doesnt occur. SERVICE BULLETIN The sound is interrupted, when the playback DIGITAL of CD-R/RW of the SCMS sig

21、nal. x for information customer complaint in case of service mandatory . See Below Approved by H.TAMURAWritten by K.ONO WQ-19 2 817/additional rule3 (1st Issue 2003-03-19) Date:15-May-2003Model SR4300 Page:1/1REF.NBR:MZ03-009 Circulation:Application: Subject: Int.ref: PHENOMENON Noise (Crackly sound

22、) appears from front Lch and/or surround Lch. SOLUTION Replace CODEC IC AK4529VQ (ICS08) to new type one ( Parts No. *HC108140R). The countermeasure needs to apply to this claim only. REMARKS New IC has been applied in the production after the Week code number 0250 and after. (The Week code number i

23、s # of serial number MZxx#xxxxxx.) SERVICE BULLETIN Noise from Front Lch and/or Surround Lch x for information customer complaint in case of service mandatory . Before XExx0250 xxxxxxx Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:30-June-2003Model: SR4300

24、Page:1 /3REF.NBR:MZ03-026 Circulation:Application: Subject: Int.ref: PHENOMENON Noise is conspicuous PREAMP OUTPUTS and SPEAKER OUTPUTS by the conditions. SOLUTION the change of the following part. On the DIGITAL/AUDIO PCB 1. Replace RS387, RS388, RS390, RS391, RS392, RS393 (2.4 k ohm) to 8.2 k ohm

25、(part no. NN05822610) 2. Replace RS389 (1 k ohm) to 2.7 k ohm (part no. NN05272610) On the 6.1CH/PRE OUT PCB 3. Cut a pattern. (please see Fig.1) 4. Add a wire. (please see Fig.1) 5. Twist the wire 5 times. (please see Fig.2) The 9pin wires are connected to JFS05(DIGITAL/AUDIO PCB) from JFK1(6.1CH/P

26、RE OUT PCB) As for the details, please see page2/3 and page3/3. REMARKS The countermeasure apply to this claim only. This improvement has been done in the production the serial no.XE000327xxxxxx and after (SR4300). ( But, Item 3, 4 are excluded.) SERVICE BULLETIN Noise is conspicuous by the conditio

27、ns. x for information customer complaint in case of service mandatory . See Below SR4300 SERVICE BULLETIN page 2/3 Fig.1 Pattern Cut Add a wire Pattern Cut SR4300 SERVICE BULLETIN page 3/3 Fig.2 FRONT SIDE Twist the wire 5 timesTwist the wire 5 times Approved by S.NAGAO Written by WQ-19 2 817/additi

28、onal rule 3 (1st Issue 2003-03-19) Date:28-Aug-2003Model: SR4300 Page:1 / 1REF.NBR:MZ03-033 Circulation:Application: Subject: Int.ref: PHENOMENON 1. The power shut-down suddenly, and STANDBY indicator turned off. 2. No response of the unit even if the POWER button is pressed. 3. The unit returned no

29、rmally when connect the power plug to the outlet again. Or, When it is left alone for a while, the unit may be returned normally. REASON When the unit warms up, CPU clock stops, and the unit becomes a perfect stop. The capacitor (0.1uF) was mounted instead of resistor RS870(10 k ohm) . (When the PCB

30、 is repaired, it has the possibility that a capacitor (0.1uF) was used.) * Though occurrence probability is low, information is provided as REPAIR HINT. SOLUTION 1. Confirm whether RS870 on DIGITAL/AUDIO PCB is 10 k ohm Chip resistor. 2. The part which isnt right, changed to 10 k ohm Chip resistor (

31、Part no. NN05103610). REMARKS The countermeasure apply to this claim only. This problem apply to the week code number MZ000331xxxxxx. This solution has already been applied in the production after the week code number MZ000332xxxxxx. SERVICE BULLETIN There is a case that the power shut-down suddenly

32、. x for information customer complaint in case of service mandatory . See Below RS870 (10 k ohm) RS870 is this side of DIDITAL/AUDIO PCB Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:18-Mar.-2004Model: SR4300 Page:1 / 1REF.NBR:MZ04-032 Circulation:Applicati

33、on: Subject: Int.ref: PHENOMENON Treble is slightly distorted when the level of TruBass is increased in CSII mode. (only in case of Rch) It occurs when “Speaker Size setup” is set as the right figure. SOLUTION Replace IC (ICS14) on the DIGITAL/AUDIO CIRCUIT BOARD. NECESSARY PART Factory part no. POS

34、.NO ICS14 Part no. *HS09AWX2R MX29LV040QC-90 OICMX29LV040QC90 OLD part no. *HS09AWX0R Factory part no. OICMX29LV040QC90 REMARKS The countermeasure apply to this claim only 1) This problem apply to the following serial number. SR4300 apply to XE000252xxxxxx. 2) This improvement has been done in the production serial number XE000301xxxxxx and after. SERVICE BULLETIN Treble is slightly distorted in CS II mode. (only in case of Rch) x for information customer complaint in case of service mandatory . See Below ICS14