Onkyo TX-SA806 Service Manual page 132

SERVICE PROCEDURES-2
6. Replacing microprocessors and flash memories
This page describes the method to write the firmware in the new chip which is replaced with broken one, and
also to update it.
1. Main microprocessor
Target IC: Q1016
It is not necessary to write the firmware directly in a new chip by a specific ROM writer.
Mount the chip on pcb and the pcb on the unit.
Refer to FIRMWARE UPDATE -2 &3 for the method.
2. 1st DSP ROM
Target IC: Q3451
Must write the firmware directly in a new chip by the specific ROM writer before mounting on pcb.
ROM writer example: AF9708 (Ando Electric) and compatibles.
In the case of updating the firmware, refer to FIRMWARE UPDATE -4 & 5.
3. 2nd DSP ROM
Target IC: Q3551
Must write the firmware directly in a new chip by the specific ROM writer before mounting on pcb.
ROM writer example: AF9708 (Ando Electric) and compatibles.
In the case of updating the firmware, refer to FIRMWARE UPDATE -4 & 5.
4. Video processor (TORINO)
Target IC: Q8005
It is not necessary to write the firmware directly in a new chip by a specific ROM writer.
Mount the chip on pcb and the pcb on the unit.
However, this TORINO chip is impossible to remove from the pcb in order in the field service.
In the case of updating the firmware, refer to FIRMWARE UPDATE -6 to 12 for the method.
5. Network (E-Control) (DTR-6.9/7.9 only)
Target IC: Q4803
It is not necessary to write the firmware directly in a chip.
Mount the chip on pcb and the pcb on the unit.
ROM writer " PICkit 2 (MICROCHIP) " and PC application for it are necessary.
This update is through JTAG socket P4801 on pcb: NAVD-9505.
TX-SR806/SA806