Protect Ic Change - NAD C 720BEE Service Manual

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PROTECT IC CHANGE

R10
100k
Q10
2SA1015GR
R13
10k
Q13
2SC1815GR
D10
Q14
1N4148
2SC1815GR
R19
R11
56k
100k
R16
10k
Protect Module
This Protect Module replaces Protection IC 44
Remove the part below:
R442 Remove 56K Ohm resistor.
Replace and change orientation for the part below:
C421 From 4.7uF/50V to 0.47uF/50V. Reverse mount the new C421
Change orientation for the part below:
D513 Reverse mount the 1N4004
R12
10k
D13
R21
4.7V
C11
100N
Q11
220k
2SA1015GR
R17
100k
Q12
R15
10K
2SA1015GR
R14
R28
R27
22k
10k
10k
Q19
C12
Q18
0.22UF
2SC1815GR
2SC1815
R26
R18
10k
100k
R23
56K
J10
CON8
- 37 -
R20
R22
R24
220k
820k
180k
Q16
2SC1815GR
D12
1N4148
Q15
2SC1815GR
R25
4.7k
C10
1N
Q17
2SC1815GR

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