Kenwood CD-425M Service Manual

Also see for CD-425M: Instruction manual Instruction manual Instruction manual

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Kenwood CD-425M Service Manual Manual pdf 8 page image

8CD-425M/4260M/4700M/DPF-J6030ADJUSTMENTNo.1ITEMFOCUS ERRORBIASINPUTSETTINGTest discType4/KTD-02OUTPUTSETTINGConnect an oscillo-scope as follows.CH1:RF (CN2-1)PLAYERSETTINGPress the PLAY/PAUSE key .Confirm that thedisplay is "05".ALIGNMENTPOINTFE BIASVR1ALIGN FOROptimum eyepatternFIG.(d)2 LASER CURRENTCHECKTest discType4Connect the DC volt-meter to LASERCURRENT CHECKLAND on X32.Press the PLAY/PAUSE key tocheck that the dis-play is 03 or 05.- 0.5±0.2VNote:Type 4 disc :SONY YEDS-18 Test Disc or equivalent.LPF : Around 47kΩ + 390 pF or so.1. With pressing the REPEAT KEY, turn the power on to enter the test mode.2. Set the Test disc to Disc NO. 1.3. Close the door.¶ RF signal in test mode (PLAY).¶ Perform the tangential and focusing offset are focused intoone point on the display. The crossing points above andbelow the center shall also be looked clearly. (FE BIAS)RF signalFIG. (d)