Av Unit (Audio Section)(Guide Page) - Pioneer CX-3250 Service Manual

1

10.3 AV UNIT (AUDIO SECTION)(GUIDE PAGE)

A
BUP
VDD5
MUTEBUP
AU84
HIVOLT14
HIVOLT
A
1/5
CN1851
VKN1610-A
B
VTR2R 1
2
VTR2RG
VTR2L 3
VTR2LG 4
VTRIN2V 5
VTRIN2VG 6
7
RROUT2
REARG 8
RLOUT2 9
REARG 10
E
MFR 11
PREG 12
CN291
13
MFL
PREG 14
MRR 15
PREG 16
MRL 17
GNDA
18
DIS_R
DIS_G 19
DIS_L 20
IICSDA
IICSCL
AVRST
C
LS1L
LS1R
GNDALS
LS1V
GNDVLS
A
2/5
GMUTER
GMUTE
VCK
VDT
VST
EVSAOUT
EVSACLK
STOIP
IPTOS
IPPW
ASENBO
D
GNDAZ
GUIDE
GMUTEL
RMUTE
NAVI_L
NAVI_R
GNDN
DTV_12R
DTV_12G
DTV_12L
DTVV
DTVG
DTVY
A
5/5
E
BCV
BCVG
VTR3VG
VTR3V
AVOUT
iPod_V
iPod_VG
iPod_R
iPod_AG
iPod_L
1601 - 1900
REFERENCE NUMBER LIST
1601 - 1620 : LS1 LPF
1621 - 1630 : AU43
1631 - 1640 : HIVOL68
1641 - 1660 : GUIDE
1661 - 1670 : GUIDE MUTE
1671 - 1690 : GUIDE MIX
1691 - 1751 : AV SELECTOR
1751 - 1760 : DUAL ZONE
F
1761 - 1790 : E-VOL
1791 - 1830 : MUTE
1831 - 1850 : IP-BUS
1851 - 1860 : IF-AV
1861 - 1880 : AUTO EQ
1881 - 1890 : VIDEO
A
3/5
1891 - 1900 : RCA PINJACK
188
1
2
AEQ/AUX SW
SWVDD5
Q1861
R1862
1 6 LSA1576UB(QRS)
E1 C1
1.5k 2 5
MSNSL
B1 B2
MICSENL R1863
3 4
C2 E2
33k
UMF23N
VTR2R
VTR2G
VTR2L
VTR2G
GNDD
VTR2V
R1869
AEQSW
R1877
VTR2VG AEQSW
Q1863
1k
1 6
REARROUT
VDD33 E1 C1
2 5
B1
B2
MSNSR 3 4
REARLOUT
MICSENR C2 E2
UMF23N
MFR
MFL
GNDD
MRR
MRL
DIS_R
DIS_G
R1601
DIS_L
0
LS1 LPF
IICSDA
C1607
IICSCL R1609
AVRST C1601
NM R1603
(2125) NM
6
LS1L
C1603
R1605 5
NM
NM
(2125) IC1601
LS1L NM
LS1R
C1608 NM
NM
LS1V R1610
GNDVLS C1602
NM R1604
(2125) NM
2
8
1
LS1R
4
GMUTER
C1604 R1606 3
NM NM NM
GMUTE
(2125)
VCK
VDT
VST
R1602
0
EVSAOUT
EVSACLK
STOIP
IPTOS
IPPW
AU4.3
R1623
ASENBO
0
GNDA
GNDA
HIVOLT6.8
R1631
NM
R1632
GNDAZ
GUIDE NM
GMUTEL
RMUTE
NAVI_L
NAVI_R
GNDN
DTV_12R
DTV_12G
DTV_12L
DTVV
GUIDE ISO/LPF
DTVG
DTVY
C1644
C1641 220p/50
DCH1201-A
GNDAZ (2125) R1649 10k
BCV
10u
R1644 R1646
BCVG
NM 3.3k 2
8
R1650
VTR3VG 1
1k
VTR3V 4
R1645 R1647
3
NM 3.3k
C1642
GUIDE IC1641
BA4558RFVM
DCH1201-A
(2125)
(1/2)
10u
AVOUT
GNDA
C1651
iPod_V
NM
iPod_VG
iPod_R
iPod_AG
iPod_L
AVIC-X930BT/XNUC
2
3
A-a
3/5
D1691
NM
D1692
NM
R1876 NM
GNDA
GNDV
R1725
Q1862
22k
MICIN
LTA114EUB
Q1865
Q1866
2SD2114K(UVW)
MICGND
NM
GNDD C1741
Q1864
MICGND
10p/50
LSA1576UB(QRS)
AV SELECTOR INPUT
NAVI(USB/SD):+2.21 dBs
NAVI(BT-Audio):+0.88 dBs
LS1:+4.88 dBs
L1601 i-Pod(aha):+1.30 dBs
VTR2:+8.23 dBs
NM
VTR1:+2.21 dBs
C1693
R1612 R1693
R1614
0
0 NM
C1691
R1691
0
R1613
C1692
R1611 R1692
0
0 NM
C1694 10u/16
R1615
C1695 0.1u/50
0
R1616
0
NM
NM
R1784
0
8
7 R1786
NM R1787
4
R1788
0
GNDV
AV SELECTOR
GNDA GNDV
R1697
NM
VIDEO
AUDIO
R1622
NM
IC1621
NJM2125F
1
5
AU4
4
2
3
H68
GNDA
GUIDE MUTE
R1662
820
(2.2k)
E2 4 3 C2
B2 B1
5 2
C1 E1
6 1
Q1662
RN4982
C1649 150p/50 (Rb=Rbe=10k)
47k
R1654
6 C1650
R1651 R1652
7 2.2u/10
100k 100k
(2125)
5 IC1641
BA4558RFVM
(2/2)
GNDA
R1661
NM
Q1661
(2.2k)
E2 4 C2
3
B2 B1
5 2
C1 E1
6 1
NM
(Rb=Rbe=10k)
D1661
NM
3
4
SYSTEM
AUDIO
R1726
R1781 R1782
22k
22k 22k
C1742
R1771
10p/50
0
R1772
0
GNDA
C1713
37 24 C1714
4.7u/16
VSS1 LOUT1
IC1691
38 RIN2 ROUT1 23 4.7u/16
GND2 AK4223VQ LOUT2
39 22
VIDEO AUDIO
LIN2 ROUT2
R1723
40 21
1u/10
1 LS1 LS1
RIN1 RVDD
41 20 0
1u/10
2
GND1 iPod iPod AVDD
42 19
1u/10 3 x
LIN1 NAVI VVDD
43 18 R1722
VCOM 4 VTR2 VTR2 RSTN
100k
44 17
x AVRST
SDA 5 B.Cam REGV
45 16 C1711
6 x x
SCL VR1
46 VSS2 VOUT1 15 0.1u/16
VGND6 VOUT2
47 14
R1783 48 13
0
C1710
R1785
NM 33u/25
C1709
0
0.1u/16
GNDV
R1701
75
R1705 R1708 R1713 R1716
75 NM NM 75
HIVOLT6.8
R1672 L1671
HIVOLT14
NM NM
R1685
AUD8.4
NM
C1674 R1676
NM NM
GUIDER
C1672 R1674
NM NM
GNDA
C1673
NM R1675
(2125) NM
GUIDEL C1671 R1673
NM NM
GNDA
D1662
RB715Z
4
AV SEL OUTPUT
NAVI(USB/SD):+2.21 dBs
NAVI(BT-Audio):+0.88 dBs
LS1:+4.88 dBs
i-Pod(aha):+1.30 dBs
VTR2:+2.23 dBs
VTR1:+2.21 dBs
L1691
10u
GNDA
L1692
10u
RCA_VL
GNDV
RCA_VR
R1742
0
VR1691
C1736 NM
1
3
NM
2
GNDV
R1761
0
CAMEL
IP_RG
IP_R
AV_ROUT1
GUIDE MIX
R1682 R1684
R1678 NM NM
C1684
C1680 C1682 NM
NM
C1678
NM NM NM
C1677
NM C1683
GNDA NM
R1677
NM
R1681 R1683
NM NM
R1680 R1686
NM NM
GNDA