Marantz-SR4300-avr-mz03023 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:30-June-2003Model: 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

2、, The sound is interrupted 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 part no. *HU100620R FACTORY PART No. OICH

3、83026F 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 manual of SR4300 page56 or SR4400 page52

4、. REMARKS The countermeasure apply to this claim only. This improvement has been done in the production 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 occ

5、ur. SERVICE BULLETIN The sound is interrupted, when the playback DIGITAL of CD-R/RW of the SCMS signal. x for information customer complaint in case of service mandatory . See Below 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) Date:31-Oc

6、t.-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 transistor was damaged, about 40 V outputs to speaker out. 3) The protection circuit function

7、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 detect protection signal (Protect2). 2) Turn on the unit, the down edge of a protection signal (

8、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 to “ON” when abnormal occur protection 1.SR4300 DIGITAL/AUDIO PCB 1) Chip Resistor LS850 (100 o

9、hm 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 ROHM) is added between BASE of QN606 SEMICOM.COMP and No.5 pin of JFN101 Connector 2.SR4400 DIGIT

10、AL/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(Part no.HD20002000-Silicon Diode 1SS254 ROHM) is added between BASE of QN606 SEMICOM.COMP and N

11、o.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 improvement has been done in the production the Service code number XE01xxxxxxxxx and after. SERVICE BUL

12、LETIN 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 by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) SR4300/SR4400 SERVICE BULLETIN (REF.N

13、BR: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. Self-extinguishing adhesive) or the equivalent Insulation tube is used MAIN PCB DN601 Part no.

14、 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 MARK RS928 is changed to Part no. *HD201810R Caution JFS08 (FPC CONNECTOR) side is CATHODE DIG

15、ITAL/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 Approved by S.NAGAO Written by WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:30-June-2003Mode

16、l: 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 the FM signal is received. 2. Then preset memory newly. 3. Then press the POWER button on the remote controller , the u

17、nit 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 problem occurs only SR4300/N1B/N1G/A1B/A1G and SR4400/N1B/N1S/A1B/A1S) SOLUTION Replace MICRO PROCESSOR(Flash) ICS18 on the

18、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 part no. *HU100620R FACTORY PART No. OICH83026F 2. SR4400 POS.NO ICS18 Part no. *HS26AWH0R New version no: VER .030515 (H

19、D6433026D04F 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 manual of SR4300 page56 or SR4400 page52. REMARKS 1. The countermeasure apply to this claim only. 2. This improvement ha

20、s 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 received, 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