I found a Ricoh GR at low cost because out of order.
The lens was not retract and the gr won't start
I cleaned it and charged the battery at the end 4V
I use a carton board as seen in a vidéo to close the lens.
The GR won't turn on.
I disassembled it but not the lens and clean all parts and made measures the 4V is on the mother board but could find nowhere else voltage on the top board where is situated the strart button
Connected to the pc no sign of life.
Cannot find service manual.
Is somebody knowing this phenomenen or having experience or having good idea of the possible cause ?
I will be very happy to restart this GR .
Thank you for your help