Blog Comments

Added information on replacing Q11 and Q12 with a BSP295.

Added name of 10 V voltage reference on USDM radios.

Added info about non-working display on otherwise correctly functioning radio.

Added information about a trace issue near Q9 that causes the 5 V sensor reference voltage to drop, affecting the display and the confirmation beep.

Added info about 79610-SLO-N01 without air conditioning.

Updated part numbers as Nichicons UKL (low leakage) series is discontinued.

Added information on 10 kΩ resistor underneath U1 causing strong distortions on very low volume.

Added information about the usage of an adapter PCB for the CD changer OP amp.

Added information and schematics about Strong distortions from CD Changer (CD changer OP amp circuit and diagram)

Added explanation why trace damage near C15 causes the fan control to stop working.
Added explanation how trace damage near C14 causes the CPU to stop working.

Added information on diagnosing CPU issues

Updated list of capacitors with all dry types as of 2024

Added information on Q4 heat-up, U1 damage and too low volume.

Added information on "Full Functionality but Display stays off"

Added information and schematics on Intermittent complete loss of sound II.

Added Information about Intermittent complete loss of sound.

Added information about issues with the muting control line.

Added information about Phazer-like-sound and how to fix it.

Originally Posted by wixer

Another fine job Lars.

Thank you very much - unfortunately the radio where this info is from couldn't be saved but learned many new things about how the innards work.

Another fine job Lars.