Pioneer VSX-521-K, Service Manual

Page: 14 / 76

14
VSX- 8 21-K
1 2 3 4
A
B
C
D
E
F
1 2 3 4
4. BLOCK DIAGRAM
4.1 OVERALL WIRING DIAGRAM
Q BRIDGE A ASSY
(7028070222070-IL)
V
BT ASSY
(7028070231010-IL)
T
T
( 1/4- 4/4) T
(VSX-821-K:7028070191030-IL)
(VSX-921-K:7028070191050-IL)
A
AUDIO ASSY
(VSX-821-K/521:702807018030
(VSX-921-K:702807018050-IL)
E
SUBWOOFR ASSY
(VSX-821-K/921:7028070272070-IL)
(VSX-521-K:7028070272050-IL)
(VSX-521-K:7028070191020-IL)
B
AMP ASSY (7ch) ( 1/2, 2/2)
B B
(VSX-921-K:7028070251040-IL)
POWER ASSY
O
(7028070212050-IL)
F-VIDEO ASSY
M
(VSX-821-K/921:7028070214050-IL
FRONT ASSY
N
(VSX-821-K/921:7028070211050-IL)
(VSX-521-K:7028070211020-IL)
HEADPHONE ASSY
F
(7028070215050-IL)
MIC ASSY
G
(VSX-821-K/921:7028070213050-IL)
(VSX-521-K:7028070213020-IL)
D
MAIN ASSY
(VSX-821-K: 70280702710H0-IL)
(VSX-921-K: 70280702710G0-IL)
(VSX-521-K: 70280702710D0-IL)
S
STANDBY ASSY (VSX-821-K/521:7028070225030-IL) (VSX-921-K:7028070225070-IL)
C
C
C
AMP ASSY (5ch) ( 1/2, 2/2)
(VSX-821-K/521:7028070241030-IL)
D-MAIN ASSY
Therefore, when replacing, be sure to use parts of identical designation.
When ordering service parts, be sure to refer to "EXPLODED V IEWS and PARTS LIST" or "PCB PARTS LIST".
The
>
mark found on some component parts indicates the importance of the safety factor of the part.
1.FLAC
2.FLCT
3.FLAC
4
3
5
6
1
4
3
5
1
2.AG N D
1.HP_L
3.HP_R
CN2
1 2 3 1 2
3 4 2
9 10 . .
2. N C
4. N C
5.SR
4.SL
3.C
1.FL
.
.
2
.
2
1
11
.
.
2
16
14.AG N D
11.BT_L
9.BT_R
10.AG N D
6.AG N D
4.AG N D
2.AG N D
.
.
2
14
9 . . 2
3.-6.8 V
.
17
16
1
.
.
15
14
1
4 5 1 2
4
2
. . 1 2 8
CP304
2
6
2
1 . . 8 9
1 2 3
1 9 10 . .
1.AC
5.AC
1 2
1 2
2.FR
1
3 4 5
4 5
CP2
.
10
1
17
12.AG N D
8.AG N D
1
15
.
2
2
CP702
9.HDMI+12 V
7.PD N
8.STBY_RLY
5.CPU_+3.3 V
3.FLAC
4.G
N DU
1.FLAC
1
2
3
3.G N DU
4.I N PUT_D N
5.ST_H+5 V
6.POWER_LED
1.STBY_KEY
3.FL2
1.FL1
CP701
CN721
1
CP403 CP405
CN3
2. N C
3.SBR
10.PREG N D
9.HIGHG N D
5.-HIGHB
6.-HIGHB
7.HIGHG N D
4.-HIGHB
1.+HIGHB
2.+HIGHB
CP1 3.G N D
(S1)
1
1.FL
2.FR
3.C
CP402
CN1
17.TU N ER_+5 V
14.TU N ER_SE N
12.TU N ER_SCLK
13.TU N ER_SDIO
8.BT_DET
9.BT_TX
10.BT_RX
3.SIRIUS_P/E
5.BT_O N /CE
6.BT_+5 V
4.U/DG N D
1.SIRIUS_RX
(SW)
9.BT_TX
10.BT_RX
11.BT_/OC
7.BT_ID
6.BT_+5 V
15.SIRIUS_R
13.SIRIUS_L
2.AG N D
3.BT_L
CP603
(BT)
(SW)
5.TU N ER_R
10
1.SW_MUTE
CP601
9.MIC_DET
10.MIC_SEL
7.G N DA
5.G N DA
6.PORTABLE_L
10
1.+6.8 V
2.G N DA
16.GPIO2/I N T
17.+5 V (TU N ER)
14./SE N
13.SDIO
12.SCLK
9.BT_RX
8.BT_DET
10.BT_TX
5.BT_O N /OFF
3.SIRIUS_P/E
4.U/DG N D
6.+5 V (BT)
1.SIRIUS_RX
(MAIN)
14.AG N D
15.SIRIUS_R
13.SIRIUS_L
(MAIN)
10.AG N D
11.BT_L
8.AG N D
9.BT_R
6.AG N D
5.TU N ER_R
4.AG N D
2.AG N D
1.SW_MUTE
CN601
3
18.G N DA
15.SW_OU
13.C_OUT
14.G
N DA
8.G N DA
9.SR_OU
10.G N DA
6.G N DA
4.G N DA
5.FR_OU
2.G N DA
1.AI N _R
6.CPU_ST_ V CC
2.FLCT
9
2.I N PUT_UP
2
(S5)
4.H/P DETECT
2
1.SBL 8.HIGHG N D
(MAIN)
3.+HIGHB
(MAIN)
4.SL
5.SR
3
(MAIN)
16.TU N ER_I N T
15.TU N ER_RST
11.BT_OC
7.BT_ID
2.SIRIUS_TX
CP602
8.BT_DET
7.TU N ER_L
11
3.SW_OUT
1.BT_R
4.CPU_G N D
5.BT_O N /CE
8.MICOUT
4.PORTABLE_R
15./RST
7.BT_ID
11.BT_OC
2.SIRIUS_TX
CP6
12.AG N D
CP5
7.TU N ER_L
3.SW_OUT
CN209
(BRIDGE_A)
16.G N DA
11.SL_OU
12.G
N DA
7.FL_OU
3.AI N _L
CN702
CP701
3.G N DU
6.POWER_LED
5.ST_H+5 V
4.I N PUT_D N
1.STBY_KEY
9.HDMI+12 V
7.PD N
5.CPU+3.3 V
6.CPU_ST_ V CC
2.FLCT
10.PREG N D
8.HIGHG N D
5.-HIGHB
6.-HIGHB
7.HIGHG N D
3.+HIGHB
1.+HIGHB
2.+HIGHB
(S1)
11.BT_/OC
9.BT_TX
10.BT_RX
6.BT_+5 V
7.BT_ID
5.BT_O N /CE
3.BT_L
2.AG N D
1.BT_R
CN901
3
17.SBR_O
19.SBL_O
8.STBY_RLY
2.I N PUT_UP
4.G N DU
9.HIGHG N D
4.-HIGHB
(S2)
(S3,4)
(MAIN)
8.BT_DET
4.CPU_G N D
1
5
(921
AC CORD
or I N LET
MAI N TRA N S