42
– MAIN Board –
IC503, 505
BA5912AFP-YE2
IC713, 714, 715
TLC2932IPW-E20
IC1501
MC14053BDTR2
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
GND
MUTE1
REF1
POW VCC1
OUT1–
OUT1+
GND
OUT2+
OUT2–
POW VCC2
PRE VCC
REF2
MUTE2
OP2-IN+
OP2-IN–
OP2-OUT
IN1
IN1’
BIAS
GND
OP1-IN+
OP1-IN–
OP1-OUT
IN2’
IN2
1
25 24
23
22 21
20
19
18 17
16
15 14
2
REF1
SWITCH
LEVEL SHIFT
VREF2
VREF1
LEVEL SHIFT
CH2
MUTE
REF2
SWITCH
CH1
MUTE
3
4
5
6
7
8
9
10 11
12
13
1
2
3
4
5
6
7
14
13
12
11
10
9
8
PFD
1/2 DIVIDER
VCO
LOGIC
VDD
SELECT
VCO
OUT
FIN-A
FIN-B
PFD
OUT
LOGIC
GND
VCO
VDD
R BIAS
VCO
IN
VCO
GND
VCO
INHIBIT
PFD
INHIBIT
NC
1
2
3
4
5
6
7
8
B1
B0
C.COM
CO
INH
VEE
VSS
VDD
B.COM
A.COM
A1
A0
A
B
C
C1
9
10
11
12
13
14
15
16
OPEN
OPEN
OPEN
Содержание SCD-1/777ES
Страница 21: ...21 21 SCD 1 777ES 7 5 SCHEMATIC DIAGRAM LOAD CN LOAD MOT LOAD SW STB Boards Page 29 ...
Страница 27: ...27 27 SCD 1 777ES 7 11 SCHEMATIC DIAGRAM MAIN Board 4 7 Page 26 Page 25 Page 35 Page 32 Page 37 ...
Страница 37: ...37 37 SCD 1 777ES 7 21 SCHEMATIC DIAGRAM DISPLAY SW L SW R Boards See page 40 for Waveforms Page 27 Page 39 ...