20.2. Main Circuit & Panel
B
SCHEMATIC DIAGRAM - 6
MAIN CIRCUIT
SA-PT750PL MAIN CIRCUIT
B16
B1
B6
B7
B8
B11
B12
:+B SIGNAL LINE
:FM SIGNAL LINE
:DVD VIDEO SIGNAL LINE
:MAIN SIGNAL LINE
:-B SIGNAL LINE
1/4
2/4
3/4
4/4
TO MAIN
SECTION (3/4)
TO MAIN
SECTION (2/4)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
11
12
13
14
100
R2756
0
W2551
R2755
4.7K
0.01
C2753
W2560
0
W2563
0
820K
R2760
R2752
10K
C2754
100P
R2753 4.7K
22K
R2758
R2754
1K
22K
R2759
C2751
1
R2757
47K
R2181
4.7K
R2282
0
4.7K
R2281
C2181
1000P
47
R2277
47
R2278
47
R2280
47
R2279
C2281
1000P
R2182
0
47
R2179
R2177
47
R2178
(HEADPHONES AMP)
OP AMP
47
47
R2180
HP-LCH
HP-RCH
R2172
W2539
0
W2569
0
1.8K
W2537
0
R2171
27K
R2271
56K
B1GDCFGA0018
Q2201
1.8K
R2175
C2171
25V4.7
1.8K
R2275
SL_OUT
0
R2307
R2170 2.2K
R2270
2.2K
27K
R2173
R2273
W2565
MUTING
W2541
0
0
W2543
W2548
0
0
27K
3
2
5
4
1
6
B1GFGCAA0001
Q2101
SR_OUT
R2407
0
FL
WL_SUBW_RCH
WL_SUBW_LCH
50V1
C2177
50V1
C2277
0
R2409
FR
C2755
W2562
0
100P
R2761
820K
R2185
0
0
R2285
0.1
C2756
R2276
W2582
0
18K
0.1
C2757
8.2K
R2174
R2751
470
8.2K
R2274
D2751
B0BC5R000009
18K
R2176
W2595
0
C2752
0.01
0.1
C2280
100P
C2178
C2278
100P
SENSE1
470K
R2765
C2179
150P
R2764
470K
+7V
+7V
B0ACCK000005
D2752
D2753
B0ACCK000005
6
7
5
2
4
3
8
1
C0ABBB000350
IC2751
IC2751
150P
C2279
R2762
10K
C2180
0.1
R2763
10K
6
7
5
2
4
3
8
1
IC2102
IC2102
C0AABB000125
-7V
HP_MUTE
HPOUT_MUTE
CYOUT
CROUT
VOUT
6
8
9
7
2
1
4
5
3
10
CN2002
TO TUNER PACK
(J3CCBB000007)
R2261
47K
3300P
C2262
R2161
47K
C2162
3300P
TUN-LCH
TUN-RCH
1K
R2260
1K
R2160
0
W2606
0
W2601
0.01
C2169
1
C2960
0
W2592
0
W2612
0
W2607
C2261
0.039
C2161
0.039
TUN_SD
TUN_DO
TUN_CLK
AGND
TUN_DI
-7V
CBOUT
W2608
0
W2615
0
W2912
0
TU+9V
+VCC
-VCC
6dB Clip
MUTING CONTROL
-VCC
+VCC
T+9V
PORT_SEL
TUNER SD
TUNER DI
AGND
TUNERGND
CHASSIS
TUNER CLK
RDS DETECT
TUNER LCH
TUNER RCH
TUNER DO/ST
C2835
25V22
0.1
C2838
6.3V100
C2806
25V22
C2834
0.1
C2837
6.3V100
C2805
25V22
C2841
W2599
0
6.3V100
C2842
0.1
C2840
C2814
25V22
VMUTE
0.1
C2833
VIDEO BUFFER
MUTING
C2802
6.3V100
1K
R2804
0
W2596
Q2801
B1GBCFJN0033
26
25
27
28
17
18
20
22
24
23
21
19
8
7
5
6
16
15
10
9
13
14
11
12
3
1
2
30
32
31
4
29
C9ZB00000461
IC2801
IC2801
1
C2817
C2818
1
W2594
0
5V
PY
C2811
0.1
CR
VGND
CB
L2801
G0C220JA0055
C2812
0.1
C2808
10V220
C2810
0.01
C2807
0.01
Y
DVD_A+5V
C2809
25V22
C
CBIN
YIN
GND
SEL
CYIN
BIAS
S2
S1
SEL
CIN
CVIN
MUTE1
VCC1
CYSAG
GND2
CBOUT
CBSAG
SDCOUT
VOUT
COUT
YSAG
CYOUT
VSAG
YOUT
GND2
GND2
VCC2
MUTE2
CRIN
CRSAG
GND2
CROUT
3dB Clip
OP AMP
0
R2309
C2316
0
C2416
0
0
W2593
SA-PT750PL
100
Summary of Contents for SA-PT750PL
Page 11: ...11 SA PT750PL ...
Page 17: ...7 5 Using the Music Port 28 17 SA PT750PL ...
Page 21: ...8 1 3 Advanced Digital Sound 8 1 4 Easy to Use 8 1 5 HDMI Compatible Products 21 SA PT750PL ...
Page 50: ...10 2 Main Components and P C B Locations 50 SA PT750PL ...
Page 67: ...67 SA PT750PL ...
Page 84: ...SA PT750PL 84 ...
Page 86: ...SA PT750PL 84 ...
Page 94: ...SA PT750PL 92 ...
Page 96: ...94 SA PT750PL ...
Page 114: ...SA PT750PL 112 ...
Page 127: ...25 Exploded Views 125 SA PT750PL ...
Page 128: ...126 SA PT750PL ...
Page 129: ...25 1 Cabinet Parts Location SA PT750PL 127 ...
Page 130: ...SA PT750PL 128 ...
Page 131: ...25 2 Packaging SA PT750PL 129 ...