Fostex FD-8 Service Manual page 61

MAIN, ROOT, ADDA (7/10)
TO
REC_L
MIXER
R109
100K
TO
REC_R
MIXER
R209
100K
MUTE
A+5
R908
1K
VBIAS
R909
1K
C903 C904
0.01
10/16
AGND
A+12
CPU 2
/MUTE
3
R906
U901
10K U902
DTC114EK
DTC114EK
2 3 2
DGND
C103
G=-4.5dB A+5
0.01
C101
R101
R102 R104
10/16
20k
12k 10K
AGND
R103
6
10K
7 2
5 1
U101B
3
NJM2115M
U101A
C107
NJM2115M
NON C108
NON
C104
0.01
AGND
C203
A+5
0.01
C201
R201
R202 R204
10/16
20k
12k 10K
AGND
R203
6
10K
7 2
5 1
U201B 3
U201A
NJM2115M
C207
NJM2115M
NON C208
NON
C204
0.01
AGND
U904F
74HC04
13 12
AD_D1
GR
DA_D[1..4]
DGND CPU
/RST
MUTE /RST_ADDA
/RST_ADDA
R901
NON
GR 11 10 9 8
MSCK
D7
U904E
3 U904D
74HC04 U904C
74HC04
RB400D
R912 74HC04
D6 GR 5 6
10K
LRCK
1 D+5
C913
100/25
GR 1 2 3 4
BCK
3 2 3
U904A U904B
U903 74HC04 74HC04
DTA114EK
R907
C905
10K
0.01
A-12 DGND
ADDA ADDA_OUT
ADDA_DG
AIN1+ AOUT1+
AIN1+ AIN1+ AOUT1+ AOUT1+
AIN1- AOUT2+
AIN1- AIN1- AOUT2+ AOUT2+
AOUT3+
R105
AOUT3+ AOUT3+
AOUT4+
330
AOUT4+ AOUT4+
AIN2+
AIN2+ AIN2+
AIN2-
AIN2- AIN2-
AOUT5+
AOUT5+ AOUT5+
AOUT6+
AOUT6+ AOUT6+
C102 AOUT7+
AOUT7+ AOUT7+
AOUT8+
R106 1500P
AOUT8+ AOUT8+
330
R205
330
A+12
C202 A+5
1500P
R206 A+5 A+5
330
A-12 AGND
AGND AGND
AGND
D+5_1
D+5_1 D+5_1
DGND1 DGND1
DGND1
AD_D1
AD_D1 AD_D1
DA_D[1..4]
DA_D[1..4] DA_D[1..4]
/RST /RST
RST_ADDA RST_ADDA
MSCK_ADDA MSCK_ADDA
LRCK_ADDA LRCK_ADDA
R902
BCK_ADDA BCK_ADDA
100
MSCK_AD MSCK_AD
MSCK_AD
R903
ADDA_DG.SCH
220
MSCK_ADDA
R904
100
LRCK_ADDA
R905
100
BCK_ADDA
L102 TO
L202
ADDA_OUT L302
L402
L103 MIXER
L303 L203
L403 J3
AOUT1 1 2 1 RP1
AOUT1+ AOUT1+ AOUT1 AOUT1
AOUT2 1 2 2 RP2
AOUT2+ AOUT2+ AOUT2 AOUT2
AOUT3 1 2 3 RP3
AOUT3+ AOUT3+ AOUT3 AOUT3
AOUT4 1 2 4 RP4
AOUT4+ AOUT4+ AOUT4 AOUT4
R_MUTE1 1 2 5
R_MUTE2 1 2 6
R_MUTE3 1 2 7
AOUT5+ AOUT5+
R_MUTE4 1 2 8
AOUT6+ AOUT6+
9 AGND
AOUT7+ AOUT7+
AOUT8+ AOUT8+
AGND 8283M9P
L502
L602
L702
L802
L503
L603
L703 J11
L803
AOUT5 1 2 1
AOUT5 AOUT5
AOUT6 1 2 2 RP5
AOUT6 AOUT6
AOUT7 1 2 3 RP6
AOUT7 AOUT7
AOUT8 1 2 4 RP7
AOUT8 AOUT8
R_MUTE5 1 2 5 RP8
R_MUTE6 1 2 6
R_MUTE7 1 2 7
R_MUTE8 1 2 8
9 AGND
AGND 8283M9P
A+12 A+12
A-12 A-12
AGND AGND
ADDA_OUT.SCH
R_MUTE[1..8]
CPU
R_MUTE[1..8]
A+12 D+5_1
A+12 D+5_1
A-12 DGND1
A-12 DGND1
A+5 D+5
A+5 D+5
AGND DGND
AGND DGND GND