22
VE-CG30U
VE-CG40U
Sound playback system troubleshooting, when sound is not heard from speaker (CG40 only)
Set confirmation tone to ON using menu, and turn on power again.
No
Is 3.3V applied to both ends of L1602, L1603 and L1605?
Is 5V applied to both ends of L1604?
Refer to "Power circuit troubleshooting".
Yes
No
Check peripheral circuit of IC1604 and FL1601.
Yes
No
Are IC1602 13PIN and 14PIN set to "H"?
Is 4.096MHz sent to R1637?
Check IC702 48PIN and 49PIN and its peripheral circuit.
Yes
Is pulse sent to IC1602 9PIN?
No
Yes
No
Is audio signal sent to IC1603 15PIN?
Check peripheral circuit of IC1602 15PIN.
Check peripheral circuit of IC1603 15PIN.
Yes
No
Is audio signal sent to IC1603 13PIN?
Check peripheral circuit of IC1603 13PIN and 14PIN.
IC1603 1PIN: "H" at audio output
Yes
No
Is audio signal sent from IC1603 5PIN and 7PIN?
Check peripheral circuit of IC1603 2PIN to 11PIN.
Yes
Periphery of P1701 on operation PWB, FFC between operation PWB and MAIN PWB, and speaker
unit are defective.
Check periphery of IC1602 and peripheral circuit of IC204.
Sound recording system troubleshooting
Set mode SW to MOVIE.
No
Is 3.3V applied to both ends of L1602, L1603 and L1605?
Is 5V applied to both ends of L1604?
Refer to "Power circuit troubleshooting".
Yes
No
Check peripheral circuit of IC1604 and FL1601.
Yes
No
Are IC1602 13PIN and 14PIN set to "H"?
Is 4.096MHz sent to R1637?
Check IC702 48PIN and 49PIN and its peripheral circuit.
Yes
Is audio signal sent to IC1602 3PIN?
No
Yes
No
Is pulse sent from IC1602 8PIN?
Check peripheral circuit of P1602.
Yes
No
Is image recorded to SD card?
Check SD card and peripheral circuit of SC201.
Yes
IC204 is defective.
Check peripheral circuit of P1602.
Check IC1603 16PIN to 24PIN.
