Denon DSD-500, Service Manual

Page: 34 / 68

34
9. Check ADSP_1V1
(1.1V DSP power)
U7(4pin) input voltage check, spec 12V±10%
Is the voltage in the spec?
U7 output enable (1pin) H?
U7 PWM output wave check (3pin)
1.1V output voltage check (R60), spec 1.1V±5%
Is the voltage in the spec?
1. Soldering check of (U7, R59, C60, C63)
2. After release (R59), conduct check of (C60, C63)
3. Return to check "12V"
Return to check "VMCU"
1. Soldering check of (U7, R64, R70, C61, C62, C64)
2. After release(R60, R67), conduct check of (C61, C62, C64)
3. Replace (U7→L11)
1. Soldering check of (U7, L11, R64, R70)
2. Replace (U7→L11)
NO
NO
NO
NO
YES
YES
YES
YES
Preparing: Release (Q14)
Start (MAIN PWB)
Finish