Pioneer AVH-P6400CD UC Service Manual

Also see for AVH-P6400CD: Catalog Operation manual Installation manual Operation manual Installation manual

AVH-P6400CD/UCABCD1 2 3 41 2 3 4906.6 CD ADJUSTMENT1) Precautions• This unit uses a single power supply (+5V) for the reg-ulator. The signal reference potential, therefore, isconnected to VREF(approx. 2.1V) instead of GND.If VREF and GND are connected to each other by mis-take during adjustments, not only will it be impossi-ble to measure the potential correctly, but the servowill malfunction and a severe shock will be applied tothe pick-up. To avoid this, take special note of the fol-lowing.Do not connect the negative probe of the measuringequipment to VREF and GND together. It is especiallyimportant not to connect the channel 1 negativeprobe of the oscilloscope to VREF with the channel 2negative probe connected to GND.Since the frame of the measuring instrument is usual-ly at the same potential as the negative probe, changethe frame of the measuring instrument to floating sta-tus.If by accident VREF comes in contact with GND,immediately switch the regulator or power OFF.• Always make sure the regulator is OFF when connect-ing and disconnecting the various filters and wiringrequired for measurements.• Before proceeding to further adjustments and mea-surements after switching regulator ON, let the playerrun for about one minute to allow the circuits to stabi-lize.• Since the protective systems in the unit's software arerendered inoperative in test mode, be very careful toavoid mechanical and /or electrical shocks to the sys-tem when making adjustment.• The RFI and RFO signals are easy to oscillate becauseof a wide band. When observing them, insert a resis-tor of about 1 kΩ to the series.• This equipment will not guarantee the load ejectionoperation when the mechanical unit is turned upsidedown. In particular, if the ejection operation is incor-rectly performed and recovery is disabled, the recov-ery is enabled by resetting a product or turning ACCoff to on.2) Test ModeThis mode is used for adjusting the CD mechanismmodule of the device.• Test mode starting procedureAcc ON(or detach grille on) and reset while pressingthe ANGLE+ and BAND keys together.• Test mode cancellationSwitch ACC, back-up OFF.• After pressing the EJECT key, do not press any otherkey until the disk is completely ejected.• If the ] or [ key is pressed while focus search is inprogress, immediately turn the power off (otherwisethe actuator may be damaged due to adhesion of thelenses).• Jump operation of TRs other than 100TR continuesafter releasing the key. CRG move and 100TR jumpoperations are brought into the “Tracking close” sta-tus when the key is released.• Powering Off/On resets the jump mode to “1TR”, theRF AMP gain setting to TYP, and the automatic adjust-ment value to the initial value.• Please use the "remote control unit of the productaccessory" after the test mode starts.www . xiaoyu163. comQQ 376315150 992894298TEL 13942296513 992894298051513673QQTEL 13942296513 QQ 376315150 892498299TEL 13942296513 QQ 376315150 892498299http://www.xiaoyu163.comhttp://www.xiaoyu163.com