Ad/Da Board (2/2) - Panasonic WR-DA7 Service Manual

AD/DA BOARD
+14.5V
SFMUTE
/RST
MLR
fs
64fs
256fs
+14.5V
CN52
+5A 1 +5A
+5A 2
+5A 3
AG 4
+14.5V
AG 5
+14.5V 6 +14.5V
+14.5V 7
–14.5V 8 –14.5V
SFMUTE
–14.5V 9
AG 10
AG 11 /RST
+5D 12 +5D
MNALR
DG 13
To
fs
Power-2 Board
64fs
. . CN52
256fs
+14.5V
(–5.4 dB)
JK655 2
3
+
1
RECORD INPUT B (L)
3 2
–
(+4 dB )
IC665A
1
(–5.4 dB)
2
JK656 5
+
7
RECORD INPUT B (R) 3 6
–
(+4 dB )
IC665B
1
SFMUTE
/RST
MNBLR
fs
64fs
256fs
BLOCK DIAGRAM OF AD/DA BOARD (2/2)
IC501
+5D
D/A CONVERTER (MASTER) R502-R535
Q501,D501 VDD
REGULATOR LVDD
L R-NETWORK
73
LMUTE
75
RMUTE
53
/RSTB
64
SD
R540-R573
65
LRCK
66
BCK
61
R R-NETWORK
X0
157
B.P.F. CKFFL
126
CKFFR
Q502,D502
REGULATOR RVDD
IC651
+5D D/A CONVERTER (MONITOR A) R652-R685
Q651,D660 VDD
REGULATOR LVDD
L R-NETWORK
73
LMUTE
75
RMUTE
53
/RSTB
64
SD
R690-R723
65
LRCK
66
BCK
61 R-NETWORK
R
X0
157
B.P.F. CKFFL
126
CKFFR
Q652,D661
REGULATOR RVDD
/2TRB
IC663
D/A CONVERTER (MONITOR B)
9
SMUTE
IC664A
19
2
5
AOUTL+
/PD –
18 3
7 AOUTL– +
SDATA
8
LRCK
IC664B
6 17 6
BICK
AOUTR+
–
16
5
AOUTR– +
4
MCLK
(–8.4 dB)
IC503A
2
1 (–0.3 dB)
(–7.1 dB)
3
6
+ 7
1
IC503B 2
–
6
7
IC504A
IC504B
L.P.F.
/MUTE
Q503
(–8.4 dB)
IC505A
2
1 (–0.3 dB)
(–7.1 dB)
3
6
+
1 7
IC505B 2
–
6
7
IC506A
IC506B
L.P.F.
/MUTE
Q504
(–8.4 dB)
IC653A
2
1 (–0.3 dB)
(–7.1 dB)
3
6
+
1 7
IC653B
2
–
6
7
IC654A
IC654B
L.P.F.
/MUTE
Q700
(–8.4 dB)
IC657A
2
1 (–0.3 dB)
(–7.1 dB)
3
6
+ 7
1
IC657B
2
–
6
7
IC658A
IC658B
L.P.F.
/MUTE
Q701
IC660
SELECTOR
15
D2
S1,S2
3,14
2 D1
10 D3
S3,S4
11,6
4 D4
1,16,9,8
/IN1 - /IN4
IC671
SELECTOR
15 D2 3
S1,S2
14
2
D1
10
D3 11
S3,S4
6
4 D4
1,16,9,8
/IN1 - /IN4
1
7
– 30 –
IC507
CN501
1
3,6 MASTER OUTPUT (L)
7
(+4 dB )
IC508
CN502
1
3,6 MASTER OUTPUT (R)
7
(+4 dB )
IC509
2
1
JK503
3,6
7 3
RECORD OUTPUT (L)
1 (+4 dB )
IC510
2
1
JK504
3,6
7
3
RECORD OUTPUT (R)
1 (+4 dB )
CN58
IC655A
1 MUTE
2 DMR
2
1
3 MONIALS
4 MONIALR
5 MONIALG
6 MONIARS
7 MONIARR
8 MONIARG
To
Monitor VR Board
. . . . . . . . . . CN58
IC655B
IC667
6
7
2
1 JK501
3,6
7 3
MONITOR A OUTPUT (L)
1
(+4 dB )
IC668
1 2
JK502
3,6
7 3
MONITOR A OUTPUT (R)
1
(+4 dB )
IC672A
CN99
2
1
1 MONIBLS
2 MONIBLR
3 MONIBLG
4 MONIBRS
5 MONIBRR
6 MONIBRG
IC672B
TB 7 TB
6
7
8 TB GND
9 +14.5V
+14.5V
–14.5V 10 –14.5V
To
Monitor VR Board
. . . . . . . . . . CN99
IC669
2
1 JK501
3,6
7
3
MONITOR B OUTPUT (L)
1
(+4 dB )
IC670
1 2
JK502
3,6
7 3
MONITOR B OUTPUT (R)
1
(+4 dB )