Pioneer CB-A802, Service Manual

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Steps to be taken during repair
The steps and care to be taken when Assys are replaced for repair or inspection are described here.
First, copy the user setting data to a USB memory device.
Before repair, inspection, or downloading of the firmware, the files indicated below must be copied to a USB memory device
just in case the user setting data are accidentally reset to default:
• SETUP menu and ADV. SETUP menu (***.set): SAVE SETUP
• Command stack (***.cmd): SAVE COMMAND STACK
The Error History must be also copied to a USB memory device. (Data on the serial number and accumulated playback
time will also be obtained.)
• Error History (***.err): SAVE ERROR LOG
For detailed operation, see the operating instructions.
When the pickup or the part that contains the pickup, such as the Traverse mechanism, is to be replaced
• For replacement, follow the procedures described in "7.6 DISASSEMBLY."
• For adjustment, follow the procedures described in "6. ADJUSTMENT."
• Perform only "How to reset playback time B" in "7.1.7."
When the POWER SUPPLY Unit is to be replaced
• Perform only "How to reset Power-on time B" in "7.1.7."
When the DVDM Assy is to be replaced
Replace the Assy, following the procedures described in "7.6 DISASSEMBLY."
• Before disconnecting the FFC cable between the Pickup Assy and the DVDM Assy (CN111), be sure to short-circuit the
short-circuiting land of the pickup with Sn-Ag-Cu alloy.
• If the AJKB Assy is to be replaced at the same time, resetting of the ID number and copying of ID data are required.
• See "7. GENERAL INFORMATION."
When the AJKB Assy is to be replaced
• Copying of ID data is required. Also, destination setting and input of the serial number are required.
• See "7. GENERAL INFORMATION."
• If the DVDM Assy is to be replaced at the same time, besides the settings mentioned above, resetting of the ID number is
also required.
• See "7. GENERAL INFORMATION."
When downloading the firmware
If you download the firmware via the RS-232C serial port after failing to upgrade it using the CD-R disc, settings, such as
SETUP, ADV.SETUP, and the command stack, are all reset to default.
• See "7. GENERAL INFORMATION."