Main - Yamaha HTR-3064 Service Manual

A B
RX-V371/HTR-3064
1

MAIN (1)

(Side A)
2
OPERATION (4)
(CB192)
+5D
AV1_D
AV2_D
DG
AV3_D
AV4_D
DG
AGND
ADL
ADR
3
IPE
IPR
IPL
AGND
MIC
AGND
AUXR
AUXL
AUXE
DAFL
DAFR
AGND
DAC
DASW
AGND
DASL
DASR
AGND
4
(DASBL)
(DASBR)
AGND
F_MT
C_MT
S_MT
+12A
-12A
OPERATION (4)
(CB191)
5
6
1
Notes)
Safety measures
• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures during servicing, such
as wearing insulating gloves.
• Note that the capacitors indicated below are dangerous even after the power is turned off because an electric charge remains and a
high voltage continues to exist there. Before starting any repair work, connect a discharging resistor (5 k-ohms/10 W) to the terminals
7
of each capacitor indicated below to discharge electricity. The time required for discharging is about 30 seconds per each.
C46, 47 on MAIN (1) P.C.B.
72
C D E
AV 1 AV 2 AV 3 AV 4 AV 5 AV OUT
OPTICAL COAXIAL COAXIAL OPTICAL
(CD) (TV)
L/R L/R
PJ21
PJ24
IC2
15
DIGITAL
F G
AUDIO1 AUDIO2 AUDIO SUBWOOFER
OUT
OUT
L/R L/R L/R
PJ22
PJ26
CB2
W1
IC1
1
TUL
TUR
TUE
(SB_MT)
SW_MT
R2A_MOSI
R2A_SCK
DGND
DGND
DC_PRT
(CB222) I_PRT
AMP_OLV
AMP_LMT
TRANS_RY
N_HP_DET
HPRY
SPRY_S
OPERATION (2)
SPRY_C
SPRY_F
PS_PRT (CB134)
NC
H I
SPEAKERS
R FRONT L
+/- +/-
SURROUND CENTER
R L
+/- +/- +/-
• Semiconductor Location
19
OPERATION (5)
(CB166)
J
ACH
ACH
E
E
ACL
ACL
POWER TRANSFORMER
Ref no. Location Ref no. Location
D1 H5 IC1 F6
D2 H6 IC2 C6
D9 G3 Q1 I6
D10 D5 Q2 H6
D11 E5 Q3 H5
D12 H3 Q4 I6
D13 G4 Q5 I5
D14 H3 Q6 H5
D15 G4 Q7 G5
D16 F5 Q8 E5
D17 F4 Q9 C5
D18 I2 Q10 F5
D19 H5 Q11 G5
D20 I2 Q12 E5
D22 I3 Q21 I2
D201 E4 Q22 E5
D202 E4