Sony DCR-TRV620E - Page 205

5-68 E
9. Headphone Jack Check
Page 3 Address 5A
Using method:
1) Select page: 3, address: 5A.
2) By discriminating the bit value of display data, the state of the
headphone jack can be discriminated.
Bit
2
Function
Headphone jack
When bit value = 1
Headphone jack is used
When bit value = 0