5
4
3
2
1
A
B
C
D
R619
CN602
TO
DMAIN IF
R614
Q603
R612
C611
C612
L602
R611
R609
CN601
TO
DMAIN IF
C601
C602
R601
IC603
R604
Q601
C656
TP633
L611
R602
TP631
B601
L601
C693
R613
TP621
Q604
R616
Q605
C694
R615
R618
R617
Q606
C613
R603
Q602
R606
R605
R608
R607
C603
Q609
C692
L631
TP632
IC608
C698
R690
IC604
R695
Q613
B603
IC606
C695
R692
R691
R693
R688
R687
R686
R694
D601
R689
D602
R696
IC609
B606
Q608
Q607
C699
IC610
R701
R705
R702
R706
C707
R710
L632
R708
R711
R704
R717
R714
R713
R712
R709
C706
C705
C703
C704
D606
C696
R716
C702
C701
R703
R715
R707
Q614
Q616
Q615
IC607
R736
R734
R733
R731
R728
R726
R725
R724
R723
R722
R721
C711
C712
C713
R727
R735
R732
C714
C715
C716
C718
C717
C723
C720
C725
C726
CN603
GND
GND
PB_DATA_B
REC_DATA_B
/6.3
GND
GND
PB_DATA_A
REC_DATA_A
/6.3
TC74HC00AF
/6.3
SHORT
/6.3
#
#
#
#
#
TC74HC02AF
#
#
SHORT
BA10358F
#
#
#
TC7SH08F
SHORT
#
#
#
#
#
#
#
#
#
/6.3
#
#
Vcc
GND
LS2_HEADSEL
LS2[H]
HS[H]
DVHS[L]
D_REC[L]
CH2_RECST[H]
CH1_RECST[H]
V/STD/HS1_FF
D/HS1_ENV
D_REC_LEV1
GND
SW5V
D_REC_LEV2
HS2_ENV
A/HS2_FF
HS_RECST[H]
TO MAIN
75
0
Ω
150
100
0.01
100
µ
75
75
100
0.01
75
0
Ω
100
100
µ
150
100
µ
100
0
Ω
0.01
470
0
Ω
0.01
0
Ω
470
0
Ω
0.01
0.01
100
µ
0.01
10k
10k
10k
10k
1k
4.7k
4.7k
10k
1k
0.01
1k
100
µ
18k
1.2k
1k
47k
47
270
10k
470p
1000p
1000p
0.01
8.2k
100
0.01
0
Ω
10k
0
Ω
10k
0
Ω
1k
1k
0
Ω
0
Ω
0
Ω
0
Ω
0
Ω
0
Ω
33p
33p
33p
0
Ω
0
Ω
0
Ω
33p
33p
33p
33p
33p
33p
33p
33p
33p
PRE/REC SCHEMATIC DIAGRAM
2-23