Marantz-ER2500-avr-sb2 维修电路原理图.pdf

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1、Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) Date:16-Mar-2005 Model: ER2500 Page:1 / 3 REF.NBR: MZ05-009 Level Application: Subject: Int.ref: PHENOMENON If the video equipment with which the coupling capacitor is not contained in the CVBS video output

2、is connected to the ER2500, synchronous disorder will occur. SOLUTION The following 6pcs of parts are changed on the MAIN PCB As for the details, Please see page2/3 and 3/3. 1. POS.NO C531 CHIP ELECT. CAPACITOR (100uF 16V) is changed to (33uF 16V). 2. POS.NO C537 CHIP ELECT. CAPACITOR (100uF 16V) is

3、 changed to (33uF 16V). 3. POS.NO - CARBON FILM FIXED RESISTOR (75 OHM +-5% 1/6W) is added. 4. POS.NO - CARBON FILM FIXED RESISTOR (75 OHM +-5% 1/6W) is added. 5. POS.NO R525 CHIP RESISTOR (75 OHM) is removed. 6. POS.NO R530 CHIP RESISTOR (75 OHM) is removed. NECESSARY PART OLD NEW POS.NO. PART NO.

4、(FOR EUR) PART NO. (MJI) PART NAME DESCRIPTION FACTORY CODE NO OLD C531 C537 nsp 00MOA10701620ELECT CAP. 100uF 16V HCEA1CH101TNEW C531 C537 nsp 00MOA33602520ELECT CAP. 33uF 16V - NEW (Add) - nsp 00MGD05750160CARBON FILM FIXED RESISTOR 75 OHM +-5% 1/6W - REMARKS 1. This problem apply to the following

5、 serial number. 1) ER2500/N1S apply to MZ01xxxx002200 and earlier. This improvement has been done in the production serial number MZ01xxxx002201 and after. 2) ER2500/U1S apply to MZ01xxxx000400 and earlier. This improvement has been done in the production serial number MZ010504000401 and after. 3) E

6、R2500/S1S apply to MZ01xxxx000080 and earlier. This improvement has been done in the production serial number MZ01xxxx000081 and after. SERVICE BULLETIN Sync problem with particular Video equipment. See below RadioFans.CN 收音机爱 好者资料库Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule

7、3 (1st Issue 2003-03-19) ER2500 Service Bulletin REF.NBR: MZ05-009 page 2/3 MAIN PCB C537 100uF/16V is changed to 33uF/16V C531 100uF/16V is changed to 33uF/16V Remove R525 Remove R530 RadioFans.CN 收音机爱 好者资料库Approved by N.Sensui Written by S.NAGAO WQ-19 2 817/additional rule 3 (1st Issue 2003-03-19) ER2500 Service Bulletin REF.NBR: MZ05-009 page 3/3 MAIN PCB Pattern side Add Resister 75 ohm (2pcs)