Yamaha HTR-5450 Service Manual page 42

A B
RX-V520/RX-V520RDS/HTR-5450/HTR-5450RDS/DSP-AX520
1
I PRINTED CIRCUIT BOARD (Foil side)
MAIN (1) P. C. B.
2
L
3
REAR
R
CENTER
4
5
• Semiconductor Location
Ref. No. Location Ref. No. Location Ref. No.
D1 H4 D11 H2 D21
D2 F4 D12 H2 D22
D3 E3 D13 G2 D23
6
D4 D4 D14 D3 Q1
D5 C4 D15 D3 Q2
D6 G4 D16 C3 Q3
D7 D4 D17 C3 Q4
D8 G4 D18 H3 Q5
D9 G4 D19 G3 Q6
D10 C4 D20 C3 Q7
7
E-49/J-45
C D
From MAIN (2)
From
MAIN (5)
Location Ref. No. Location Ref. No. Location Ref. No.
D3 Q8 G4 Q17A F5 Q28
G3 Q9 F4 Q17C G5 Q29
D3 Q10 F4 Q18A E5 Q30
H5 Q11 E4 Q18C F5 Q31
G5 Q12 E4 Q19A D5 Q32
E5 Q13 C4 Q19C D5 Q33
D5 Q14 C4 Q20A B5 Q34
C5 Q15 B4 Q20C C5
H4 Q16A H5 Q26 I4
H4 Q16C H5 Q27 H4
E F
LE
LE
L
L
E
To MAIN (4)
RE
RE
R
R
From MAIN (2)
Location
Circuit No. J U, C R, T A, B, G, L
C38, 41~44 X X X O
G4
X: NOT USED
F4
O: USED / APPLICABLE
E4
C3
G3
G2
E3
E-50/J-46
G H
From
OPERATION (5)
I J
To
OPERATION
(1)
PRV1
E
+B
VC
NFC
VRR
NFRR
VRL
NFRL
VR
NFR
VL
NFL
-BV
From
OPERATION
(4)