Panasonic SA-HT740P User manual

1 Background 3
1.1. How to confirm DHIC damage 3
1.2. Other improvement points 3
2 Service Parts Replacement 4
3 Location of Replacement & Removal Parts 5
3.1. Location and Replacement of Resistors (R5041, R5042 &
R5072) 5
3.2. Location and Replacement of Capacitor (C5718) 5
3.3. Location and Removal of Capacitors (C5027 & C5028) 6
3.4. Reduce Length of Speaker Wire Strip 6
©2007 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-HT740P
SA-HT740PC
SA-HT740PX
SA-HT743P
SA-HT743PC
SA-HT940P
SA-HT940PC
Colour
(S) .... Silver Type
4 Assembling and Disassembling of DHIC 7
4.1. Content of this section 7
4.2. Disassembly of DHIC 8
4.3. Assembly of DHIC 12
5 Schematic Diagram 17
5.1. Power Circuit (SA-HT740P/PC) 17
5.2. Power (Damp) Circuit (SA-HT740PX) 18
5.3. Power Circuit (SA-HT743P/PC) 19
5.4. Power (Damp) Circuit (SA-HT940P/PC) 20
6 Printed Circuit Board 21
DVD Home Theater Sound System
Subject : F61 Countermeasure Summary
Please file and use this supplement manual together with the service manual for
Model No.SA-HT740PPC-S, Order No. MD0512491C1
Model No.SA-HT740PX-S, Order No. MD0605181A3
Model No.SA-HT743PPC-S, Order No. MD0603063A1
Model No.SA-HT940PPC-S, Order No. MD0603057C1
CONTENTS
Page Page
ORDER NO. MD0702028SE
A6

6.1. Power P.C.B. (SA-HT740P/PC) 21
6.2. Power P.C.B. (SA-HT743P/PC) 22
6.3. Power P.C.B. (SA-HT940P/PC) 23
7 Replacement Parts List 25
7.1. SA-HT740P/PC-S 25
7.2. SA-HT740PX-S 25
7.3. SA-HT743P/PC-S & SA-HT940P/PC-S 25
2
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

1 Background
This technical document illustrates the checking procedures when upon detecting the error code of “F61”. After the unit is switched
on, front display shows “F61”, and then unit shuts down. One possible problem is the DHIC located on the main unit (Power P.C.B)
is not operating in good condition or damage. This is caused by speaker terminal shorted during operation (at certain output level).
High current flows through the DHIC resulting in the activation of protection circuit. Due to the margin for sensitivity & current
consumption not enough, it leads to the damage of the DHIC.
DHIC refers to digital power hybrid I.C.
1.1. How to confirm DHIC damage
Below are 2 easy steps to check and confirm if the DHIC is damage.
1.Use a hand-held DMM to measure the Center channel or the Subwoofer channel speaker terminals just before the unit shuts
down. If there is DC voltage appears at one of the channels’ output, the DHIC is defective.
2.Check the pin 16 of digital HIC for unstable voltage 0 to 12V during power on. It should be normally stable at 12V after power
on.
Note :
If DHIC is damage, replace it with new one. Refer to section 5 Assembling and Disassembling of DHIC for the location of
replacement parts.
1.2. Other improvement points
1.Improve the protection circuit sensitivity.
2.Improve DHIC power consumption during load shorted.
3.Reduce the speaker wire strip.
3
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

2 Service Parts Replacement
·Models applicable : SA-HT740P/PC-S, SA-HT740PX-S, SA-HT743P/PC-S and SA-HT940P/PC-S
·Remedy:
Replace the IC, and then apply a fresh coat of heat sink compound before mounting the heat sink on the IC. DHIC (IC5001)
part numbers are as follows:
Model DHIC Part Number (IC5001)
SA-HT740P/PC-S RSN704D65-P
SA-HT740PX-S
SA-HT743P/PC-S
SA-HT940P/PC-S RSN704D66-P
·To prevent the IC from future damage, please use the following power service kit assembly to improve the protection circuits:
− Part no. RFKVAHT740PS
− (For replacement of parts) This service kit assembly consists of :
1.ERJM1WSF20MU x 2 pieces (R5041 & R5042)
2.ERJ3RBD272V x 1 piece (R5072)
3.F2A1J221A053 x 1 piece (C5718)
− For removal of parts:
1.F2A1J221A053 x 2 pieces (C5027 & C5028)
The following Section 3 “Location of Replacement & Removal Parts” indicates the location of the replcaement and removal points.
Note :
If the Main P.C.B is loaded with the applicable changes. It is not necessary to replace them.
4
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

3 Location of Replacement & Removal Parts
This section includes the location of the parts for changes of improvement.
3.1. Location and Replacement of Resistors (R5041, R5042 & R5072)
3.2. Location and Replacement of Capacitor (C5718)
5
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

3.3. Location and Removal of Capacitors (C5027 & C5028)
3.4. Reduce Length of Speaker Wire Strip
6
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

4 Assembling and Disassembling of DHIC
“ATTENTION SERVICER”
Some chassis components may be have sharp edges. Be careful when disassembling and servicing.
1.This section describes procedures for checking the operation of the major printed circuit boards and replacing the main
components.
2.For reassembly after operation checks or replacement, reverse the respective procedures.
Special reassembly procedures are described only when required.
3.Select items from the following index when checks or replacement are required.
4.1. Content of this section
1.Below is the list of disassembly of DHIC sections
·Removal of Top Cabinet
·Removal of Tray Lid Assembly
·Removal of Front Panel
·Removal of Tray Assembly
·Removal of Rear Panel
·Removal of Side Fan
·Disassembly of Main P.C.B.
2.Assembly of DHIC sections
7
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

4.2. Disassembly of DHIC
4.2.1. Removal of Top Cabinet
Step 1 : Remove 3 screws on Rear Panel.
Step 2 : Remove 4 screws on L/R side of Top Cabinet.
Step 3 : Remove Top Cabinet as arrow shown.
4.2.2. Removal of Tray Lid Assembly
·Follow the (Step 1) - (Step 3) of item 4.2.1.
8
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

Step 1 : Push and hold the Close Lock Gear and then push the
Tray Assembly as arrow shown .
Step 2 : Release the 4 claws as arrows shown to detact the
Tray Lid Assembly.
Step 3 : Push and hold the Open Lock Gear and then push the
Tray Assembly as arrows shown.
4.2.3. Removal of Front Panel
·Follow the (Step 1) - (Step 3) of item 4.2.1.
·Follow the (Step 1) - (Step 3) of item 4.2.2.
Step 1 : Release 5 hooks.
9
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

Step 2 : Disconnect the connector (CN2013) and detach the
FFC (CN5707 and CN5705) then remove the Front Panel as
arrow shown.
4.2.4. Removal of Tray Assembly
·Follow the (Step 1) - (Step 3) of item 4.2.1.
·Follow the (Step 1) - (Step 3) of item 4.2.2.
·Follow the (Step 1) - (Step 2) of item 4.2.3.
Step 1 : Push and hold the Close Lock Gear and then push the
Tray Assembly as arrows shown.
Step 2 : Detach the FFC (CN5702).
Step 3 : Push and hold the claws at the both sides of the Tray
Assembly and Close Lock Gear at the same time to remove the
Tray Assembly as arrows shown.
4.2.5. Removal of Rear Panel
·Follow the (Step 1) - (Step 3) of item 4.2.1.
·Follow the (Step 1) - (Step 3) of item 4.2.2.
·Follow the (Step 1) - (Step 2) of item 4.2.3.
·Follow the (Step 1) - (Step 3) of item 4.2.4.
Step 1 : Remove 9 screws on Rear Panel.
10
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

Step 2 : Detach the fan connector (CN5704).
Step 3 : Release all the catches at both sides of the Rear Panel
and remove it as arrow shown.
4.2.6. Removal of Side Fan
·Follow the (Step 1) - (Step 3) of item 4.2.1.
·Follow the (Step 1) - (Step 3) of item 4.2.2.
·Follow the (Step 1) - (Step 2) of item 4.2.3.
·Follow the (Step 1) - (Step 3) of item 4.2.4.
·Follow the (Step 1) - (Step 3) of item 4.2.5.
Step 1 : Remove 2 screws and detach the Side Fan.
Step 2 : Disconnect the connector (CN5714).
4.2.7. Disassembly of Main P.C.B.
·Follow the (Step 1) - (Step 3) of item 4.2.1.
·Follow the (Step 1) - (Step 3) of item 4.2.2.
·Follow the (Step 1) - (Step 2) of item 4.2.3.
·Follow the (Step 1) - (Step 3) of item 4.2.4.
·Follow the (Step 1) - (Step 3) of item 4.2.5.
·Follow the (Step 1) - (Step 2) of item 4.2.6.
Step 1 : Cut the 2 lead clampers to release the wires.
Step 2 : Remove 4 screws.
Step 3 : Push the Main P.C.B. as arrow shown to avoid the
hooks.
Step 4 : Flip the Main P.C.B. as arrow shown.
11
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

4.3. Assembly of DHIC
4.3.1. Assembly of Main P.C.B.
Step 1 : Lay down the Main P.C.B. as arrow shown.
Step 2 : Push the Main P.C.B. as arrow shown to seat properly
at both guides.
Step 3 : Ensure the wires dressed underneath the hooks.
Step 4 : Fix 4 screws.
Step 5 : Insert the lead clamper (2 pieces) through the hole as
arrows shown to hold the wires.
Step 6 : Place the Side Fan properly on the hooks.
Step 7 : Fix 2 screws.
Step 8 : Reconnect the connector (CN5714).
12
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

Step 9 : Fix the Rear Panel as arrow shown.
Step 10 : Fix 9 screws.
Step 11 : Reconnect the connector (CN5704).
Step 12 : Positioned the gear as shown before fixing the Tray
Assembly.
Step 13 : Positioned the Tray Assembly at the tray guide (L).
13
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

Step 14 : Push and hold the Open Lock Gear and then push
the Tray Assembly as arrows shown.
Step 15 : Ensure the Front Panel is properly located and fully
catched.
Step 16 : Reconnect the connectors (CN2013) and FFC
(CN5705 and CN5707).
14
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

Step 17 : Push and hold the Close Lock Gear and then push
the Tray Assembly as arrows shown.
Step 18 : Ensure the Tray Lid Assembly is properly located and
fully catched.
Step 19 : Push and hold the Open Loack Gear and then push
the Tray Assembly as arrows shown.
Step 20 : Fix the Top Cabinet as shown.
15
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

Step 21 : Fix 4 screws on L/R side of Top Cabinet.
Step 22 : Fix 3 screws on Rear Panel.
16
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC

5 Schematic Diagram
5.1. Power Circuit (SA-HT740P/PC)
A
B
C
D
E
F
G
H
12345678910111213
123
52
4
51
5
50
6
49
7
48
8
47
9
46
10
45
11
44
12
43
13
42
14
41
15
40
16
39
17
38
18
37
19
36
20
35
21
34
22
33
23
32
24
31
26
3029
25
2827
16
17
1
2
3
4
5
6
14
12
10
8
7
9
11
13
15
1
2
3
4
5
6
14
12
10
8
7
9
11
13
+50V
+30_VDD
+30_VDD
PGND_30
PGND_30
-30_VDD
-30_VDD
DC_DET
+12V
C5101 1000P C5201 1000P C5601 1000P C5301 1000P C5401 1000P C5501 1000P
C5504 50V2.2
C5025
16V56P
C5021
16V56P
C5022
16V47
C5914
10V1
AVCC1/2
CLKCTL1/2
CLKIN1/2
CLKMODE1/2
HICSUB
IN1 (SW)
+Vdd1/2
IN2
(CENTER)
HICSUB
PRIN
PRMON
MUTE/
PREN/STBY
AGND1/2
CREF1/2
MUTE_3
CH3IN
GND
NC
MUTE_5,6
CH6IN
CH5IN
MUTE_4
CH4IN
GND
GND
CHMODE
IC1SUB
-Vout1
+Vcc1
+Vout1
GND
+PH1
-PH1
CH3-OUT
-PH2
+PH2
GND
+Vout2
+Vcc2
-Vout2
-VCC5_6
+VCC5_6
CH4-OUT
CH4+OUT
-VCC_PRE
+VCC_PRE
GND
CH6OUT
CH5OUT
+VCC3_4
-VCC3_4
CH3+OUT
C5097
50V10
C5073
0.1
LB5071
J0JKB0000020 +30V
-30V
IC5001
RSN704D65-P
IC5010
C0JBAB000472
Q5096
B1ABCF000011
Q5022
B1ABCF000011
Q5023
B1ABCF000011
Q5014
B1ABCF000011
Q5025
B1ABCF000011
Q5095
B1ABCF000011
Q5031
B1ADBL000010
Q5002
B1ABCF000011
Q5001
B1ABCF000011
L5309
ETQA15A150T
C5029
63V47P
C5071
35V33P
C5076 35V470P C5078 35V470P C5075 35V470P C5077 35V470P
C5030
63V47P
C5318
0.68
C5431
100P
C5487
0.1
C5074
0.1
LB5072
J0JKB0000020
C5072
35V33P
C5067
1000P
C5063
16V10
C5066
1000P
C5062
16V10
C5502
100P
C5512
0.68
C5532
0.1
R5517
22
C5098
1000P
C5531
100P
C5510
0.68
C5530
100P
C5609
0.68
C5013 0.01 C5012 0.01 C5015 390P C5014 100P C5017 390P C5016 100P
C5033
0.1
C5036 0.1C5035 0.1
C5630
100P
C5611
0.68
C5631
100P
1
3
2
4
L5105
ETQA15A150T
JK5400
FL+
SURROUND R
FRONT L
CN5050
AGND
FRONT R
AGND
SUBWOOFER
AGND
SURROUND L
AGND
AGND
CENTER
MODE_S
MODE_F
FHOP
DGND
MUTE_CSW
MOD_DA
SW+
C+
SR+
SR-
SL-
GND
GND
SL+
SW-
C-
1
3
2
4
L5503
ETQA17A150T
1
3
2
4
L5601
ETQA17A150T
1
3
2
4
R5516 0
R5519
8.2K
R5514 0
R5615 0
R5410 220
R5038 220K
R5039
220K
R5037 47K
R5041 1R5042 1
R5613 0
R5077 0
R5072
1.8K
R5073 22K R5071 0
R5074 5.6K
R5627
8.2K
C5020 0.1
R5070 5.6K
R5487
22
C5230
100P
C5113
0.68
C5130
100P
C5115
0.68
C5181
0.1 R5181
22
R5110
5.6K
R5504
47K
C5183
0.1 R5183
22
R5109
5.6K
C5386
0.1
R5411
5.6K
R5311
5.6K
C5406 0.47
R5208 220
R5107 220
R5502 2.2K
D5041 B0ACCK000005
R5506 22K
C5603 50V2.2
C5602
100P
C5019 47P
C5018 47P
C5011
0.1
R5603
47K
C5040
0.1
R5047
10K
R5046
47K
R5053
3.3K
R5050
22K
R5063
10K
R5601 2.2K
R5011 10K R5014
1M
GND
VCC
IN GND OUT
R5056 4.7K
R5605 22K
R5012 100
R5013
1M
R5057 4.7K
R5059 10KR5040 0
R5060 10K
R5062 10K
C5099
0.01
R5052 22K
K5001
0
R5051 22K
R5067 100
R5065 100
R5309 220 C5305 0.47
R5386
22
C5317
0.68
C5430
100P
D5031 B0BC3R400001
R5076 0
IC5002
C0ABBA000163
12
13
14
3
12
4
11
5
10
6
9
7
8
12
78
3
6
4
5
R5048
47K
R5094
47K
R5049
1K
R5021
100K R5022 100K
R5625
100K
R5624 220K
R5023 220K
Q5015
B1ADBL000010
FR+
FR-
FL-
C5031
50V10
R5493 22K R5492 120K
R5082 82K
R5099
47K
R5081 82K
R5696
10K
R5626
10K
R5595
10K
R5391 68K
C5096
6.3V100
R5189 82K
R5518 10K
R5197
10K
R5080 10K
R5079 10K
L5023
ELJPC220KFB
L5021
ELJPC220KFB
D5010
B0ACCK000005
D5013
B0ACCE000003
D5012
B0ACCE000003
R5015
1M
X5011
H2A415300001
X5010
H2A375300003
TO
MAIN CIRCUIT
(CN2011) on
SCHEMATIC
DIAGRAM-11
B
TO
SPEAKERS
123
IC5004
C0CBADE00023
C5002
16V100
C5003
16V100
C5001
16V100 -VCC
+VCC
4
2
3
1
2
4
1
3
2
4
1
3
2
4
1
3
2
4
1
3
2
4
1
3
L5600
G0B9R5K00001
L5500
G0B9R5K00001
L5200
G0B9R5K00001
L5100
G0B9R5K00001
L5400
G0B9R5K00001
L5300
G0B9R5K00001
: MAIN SIGNAL LINE
SA-HT740P/PC POWER CIRCUIT
TERMINAL
INVERTER
INVERTER
DUAL OP-AMP
DC DETECT
DC DETECT
DC DETECT
DC DETECT
INVERTER
SCHEMATIC DIAGRAM-12
POWER CIRCUIT
C
DIGITAL POWER AMP
MUTING
(CENTER SW)
MUTING
MODE SELECTOR
:+B SIGNAL LINE :-B SIGNAL LINE
CHANGE ADD
(C5718)
DELETE
(C5027)
DELETE
(C5028)
CHANGE CHANGE
0.02 0.02
C5718
63V220
2.7K
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC
17

5.2. Power (Damp) Circuit (SA-HT740PX)
A
B
C
D
E
F
G
H
12 3 4 5 6 7 8 9 10 11 12 13
1
2
3
52
4
51
5
50
6
49
7
48
8
47
9
46
10
45
11
44
12
43
13
42
14
41
15
40
16
39
17
38
18
37
19
36
20
35
21
34
22
33
23
32
24
31
26
30
29
25 28
27
16
17
1
2
3
4
5
6
14
12
10
8
7
9
11
13
15
1
2
3
4
5
6
14
12
10
8
7
9
11
13
+50V
+30_VDD
+30_VDD
PGND_30
PGND_30
-30_VDD
-30_VDD
DC_DET
+12V
C5101 1000P C5201 1000P C5601 1000P C5301 1000P C5401 1000P C5501 1000P
C5504 50V2.2
C5025
16V56P
C5021
16V56P
C5022
16V47
C5914
10V1
AVCC1/2
CLKCTL1/2
CLKIN1/2
CLKMODE1/2
HICSUB
IN1 (SW)
+Vdd1/2
IN2
(CENTER)
HICSUB
PRIN
PRMON
MUTE/
PREN/STBY
AGND1/2
CREF1/2
MUTE_3
CH3IN
GND
CH4IN
MUTE_5,6
CH6IN
CH5IN
NC
NC
GND
GND
CHMODE
IC1SUB
-Vout1
+Vcc1
+Vout1
GND
+PH1
-PH1
CH4OUT
-PH2
+PH2
GND
+Vout2
+Vcc2
-Vout2
-VCC5_6
+VCC5_6
NC
NC
-VCC_PRE
+VCC_PRE
GND
CH6OUT
CH5OUT
+VCC3_4
-VCC3_4
CH3OUT
C5097
50V10
C5073
0.1
LB5071
J0JKB0000020 +30V
-30V
IC5001
RSN704D65-P
IC5010
C0JBAB000472
Q5096
B1ABCF000011
Q5022
B1ABCF000011
Q5023
B1ABCF000011
Q5014
B1ABCF000011
Q5025
B1ABCF000011
Q5095
B1ABCF000011
Q5031
B1ADBL000010
Q5002
B1ABCF000011
Q5001
B1ABCF000011
L5309
ETQA15A150T
C5029
63V47P
C5071
35V33P
C5076 35V470P C5078 35V470P C5075 35V470P C5077 35V470P
C5030
63V47P
C5318
0.68
C5431
100P
C5487
0.1
C5074
0.1
LB5072
J0JKB0000020
C5072
35V33P
C5067
1000P
C5063
16V10
C5066
1000P
C5062
16V10
C5502
100P
C5512
1
C5532
0.1
R5517
22
C5098
1000P
C5531
100P
C5510
1
C5530
100P
C5609
1
C5013 0.01 C5012 0.01 C5015 390P C5014 100P C5017 390P C5016 100P
C5033
0.1
C5036 0.1C5035 0.1
C5630
100P
C5611
1
C5631
100P
1
3
2
4
L5105
ETQA15A150T
JK5400
FL+
SURROUND R
FRONT L
CN5050
AGND
FRONT R
AGND
SUBWOOFER
AGND
SURROUND L
AGND
AGND
CENTER
MODE_S
MODE_F
FHOP
DGND
MUTE_CSW
MOD_DA
SW+
C+
SR+
SR-
SL-
GND
GND
SL+
SW-
C-
1
3
2
4
L5503
ETQA17A150T
1
3
2
4
L5601
ETQA17A150T
1
3
2
4
R5516 0
R5519
8.2K
R5514 0
R5615 0
R5410 220
R5038 220K
R5039
220K
R5037 47K
R5041
1
R5613 0
R5077 0
R5072 2.7KR5073 22K R5071 0
R5074 4.7K
R5627
8.2K
C5020 0.1
R5070 4.7K
R5487
22
C5230
100P
C5113
0.68
C5130
100P
C5115
0.68
C5181
0.1 R5181
22
R5110
5.6K
R5504
47K
C5183
0.1 R5183
22
R5109
5.6K
C5386
0.1
R5411
5.6K
R5311
5.6K
C5406 0.47
R5208 220
R5107 220
R5502 2.2K
D5041 B0ACCK000005
R5506 22K
C5603 50V2.2
C5602
100P
C5019 47P
C5018 47P
C5011
0.1
R5603
47K
C5040
0.1
R5047
10K
R5046
47K
R5053
3.3K
R5050
22K
R5063
10K
R5601 2.2K
R5011 10K R5014
1M
GND
VCC
IN GND OUT
R5056 4.7K
R5605 22K
R5012 100
R5013
1M
R5057 4.7K
R5059 10KR5040 0
R5060 10K
R5062 10K
C5099
0.01
R5052 22K
R5051 22K
R5067 100
R5065 100
R5309 220 C5305 0.47
R5386
22
C5317
0.68
C5430
100P
D5031 B0BC3R400001
R5076 0
IC5002
C0ABBA000163
12
13
14
3
12
4
11
5
10
6
9
7
8
12
78
3
6
4
5
R5048
47K
R5094
1K
R5049
1K
R5021
100K R5022 100K
R5624 220K
R5625 100K
R5023 220K
Q5015
B1ADBL000010
FR+
FR-
FL-
C5031
50V10
R5493 22K R5492 120K
R5082 82K
R5099
47K
R5081 82K
R5696
10K
R5595
10K
R5626
10K
R5391 68K
C5096
6.3V100
R5189 82K
R5518 10K
R5197 10K
R5080 10K
R5079 10K
L5023
ELJPC220KFB
L5021
ELJPC220KFB
D5010
B0ACCK000005
D5013
B0ACCE000003
D5012
B0ACCE000003
R5015
1M
X5011
H2A415300001
X5010
H2A375300003
TO
MAIN CIRCUIT
(CN2011) on
SCHEMATIC
DIAGRAM-12
B
TO
SPEAKERS
123
IC5004
C0CBADE00023
C5002
16V100
C5003
16V100
C5001
16V100 -VCC
+VCC
4
2
3
1
2
4
1
3
2
4
1
3
2
4
1
3
2
4
1
3
2
4
1
3
L5600
G0B9R5K00001
L5500
G0B9R5K00001
L5200
G0B9R5K00001
L5100
G0B9R5K00001
L5400
G0B9R5K00001
L5300
G0B9R5K00001
: MAIN SIGNAL LINE
SA-HT740PX POWER(DAMP) CIRCUIT
TERMINAL
INVERTER
INVERTER
DUAL OP-AMP
DC DETECT
DC DETECT
DC DETECT
DC DETECT
VOLTAGE DETECT
INVERTER
K5001
0
C5718 63V220
DIGITAL POWER AMP
MUTING
(CENTER SW)
MUTING
MODE SELECTOR
:+B SIGNAL LINE :-B SIGNAL LINE
POWER(DAMP) CIRCUIT
C
SCHEMATIC DIAGRAM-13
W4010
0
W4104
0
W4107 0
W6
0
W10
0
W4013
0
W4120
0
W4018
0
C5102
0.1
C5799
0.1
W4700 0
W4112
0
W4121
0
W4115
0
W4717
0
W4718
0
W4116
0
W4012
0
W4114
0
CORRECTION
POINT
CORRECTION
POINT
R5042
1
0.02 0.02
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC
18

5.3. Power Circuit (SA-HT743P/PC)
A
B
C
D
E
F
G
H
12345678910111213
123
52
4
51
5
50
6
49
7
48
8
47
9
46
10
45
11
44
12
43
13
42
14
41
15
40
16
39
17
38
18
37
19
36
20
35
21
34
22
33
23
32
24
31
26
3029
25
2827
16
17
1
2
3
4
5
6
14
12
10
8
7
9
11
13
15
1
2
3
4
5
6
14
12
10
8
7
9
11
13
+50V
+30_VDD
+30_VDD
PGND_30
PGND_30
-30_VDD
-30_VDD
DC_DET
+12V
C5101 1000P C5201 1000P C5601 1000P C5301 1000P C5401 1000P C5501 1000P
C5504 50V2.2
C5025
16V56P
C5718
63V220
C5021
16V56P
C5022
16V47
C5914
10V1
AVCC1/2
CLKCTL1/2
CLKIN1/2
CLKMODE1/2
HICSUB
IN1 (SW)
+Vdd1/2
IN2
(CENTER)
HICSUB
PRIN
PRMON
MUTE/
PREN/STBY
AGND1/2
CREF1/2
MUTE_3
CH3IN
GND
NC
MUTE_5,6
CH6IN
CH5IN
MUTE_4
CH4IN
GND
GND
CHMODE
IC1SUB
-Vout1
+Vcc1
+Vout1
GND
+PH1
-PH1
CH3-OUT
-PH2
+PH2
GND
+Vout2
+Vcc2
-Vout2
-VCC5_6
+VCC5_6
CH4-OUT
CH4+OUT
-VCC_PRE
+VCC_PRE
GND
CH6OUT
CH5OUT
+VCC3_4
-VCC3_4
CH3+OUT
C5097
50V10
C5073
0.1
LB5071
J0JKB0000020 +30V
-30V
IC5001
RSN704D65-P
IC5010
C0JBAB000472
Q5096
B1ABCF000011
Q5022
B1ABCF000011
Q5023
B1ABCF000011
Q5014
B1ABCF000011
Q5025
B1ABCF000011
Q5095
B1ABCF000011
Q5031
B1ADBL000010
Q5002
B1ABCF000011
Q5001
B1ABCF000011
L5309
ETQA15A150T
C5029
63V47P
C5071
35V33P
C5076 35V470P C5078 35V470P C5075 35V470P C5077 35V470P
C5030
63V47P
C5318
0.68
C5431
100P
C5487
0.1
C5074
0.1
LB5072
J0JKB0000020
C5072
35V33P
C5067
1000P
C5063
16V10
C5066
1000P
C5062
16V10
C5502
100P
C5512
0.68
C5532
0.1
R5517
22
C5098
1000P
C5531
100P
C5510
0.68
C5530
100P
C5609
0.68
C5013 0.01 C5012 0.01 C5015 390P C5014 100P C5017 390P C5016 100P
C5033
0.1
C5036 0.1C5035 0.1
C5630
100P
C5611
0.68
C5631
100P
1
3
2
4
L5105
ETQA15A150T
JK5400
FL+
SURROUND R
FRONT L
CN5050
AGND
FRONT R
AGND
SUBWOOFER
AGND
SURROUND L
AGND
AGND
CENTER
MODE_S
MODE_F
FHOP
DGND
MUTE_CSW
MOD_DA
SW+
C+
SR+
SR-
SL-
GND
GND
SL+
SW-
C-
1
3
2
4
L5503
ETQA17A150T
1
3
2
4
L5601
ETQA17A150T
1
3
2
4
R5516 0
R5519
8.2K
R5514 0
R5615 0
R5410 220
R5038 220K
R5039
220K
R5037 47K
R5041
1
R5042
1
R5613 0
R5077 0
R5072
1.5K
R5073 22K R5071 0
R5074 4.7K
R5627
8.2K
C5020 0.1
R5070 4.7K
R5487
22
C5230
100P
C5113
0.68
C5130
100P
C5115
0.68
C5181
0.1 R5181
22
R5110
5.6K
R5504
47K
C5183
0.1 R5183
22
R5109
5.6K
C5386
0.1
R5411
5.6K
R5311
5.6K
C5406 0.47
R5208 220
R5107 220
R5502 2.2K
D5041 B0ACCK000005
R5506 22K
C5603 50V2.2
C5602
100P
C5019 47P
C5018 47P
C5011
0.1
R5603
47K
C5040
0.1
R5047
10K
R5046
47K
R5053
3.3K
R5050
22K
R5063
10K
R5601 2.2K
R5011 10K R5014
1M
GND
VCC
IN GND OUT
R5056 4.7K
R5605 22K
R5012 100
R5013
1M
R5057 4.7K
R5059 10KR5040 0
R5060 10K
R5062 10K
C5099
0.01
R5052 22K
K5001
0
R5051 22K
R5067 100
R5065 100
R5309 220 C5305 0.47
R5386
22
C5317
0.68
C5430
100P
D5031 B0BC3R400001
R5076 0
IC5002
C0ABBA000163
12
13
14
3
12
4
11
5
10
6
9
7
8
12
78
3
6
4
5
R5048
47K
R5094
1K
R5049
1K
R5021
100K R5022 100K
R5625
100K
R5624 220K
R5023 220K
Q5015
B1ADBL000010
FR+
FR-
FL-
C5031
50V10
R5493 22K R5492 120K
R5082 82K
R5099
47K
R5081 82K
R5696
10K
R5626
10K
R5595
10K
R5391 68K
C5096
6.3V100
R5189 82K
R5518 10K
R5197
10K
R5080 10K
R5079 10K
L5023
ELJPC220KFB
L5021
ELJPC220KFB
D5010
B0ACCK000005
D5013
B0ACCE000003
D5012
B0ACCE000003
R5015
1M
X5011
H2A415300001
X5010
H2A375300003
TO
MAIN CIRCUIT
(CN2011) on
SCHEMATIC
DIAGRAM-11
B
TO
SPEAKERS
123
IC5004
C0CBADE00023
C5002
16V100
C5003
16V100
C5001
16V100 -VCC
+VCC
4
2
3
1
2
4
1
3
2
4
1
3
2
4
1
3
2
4
1
3
2
4
1
3
L5600
G0B9R5K00001
L5500
G0B9R5K00001
L5200
G0B9R5K00001
L5100
G0B9R5K00001
L5400
G0B9R5K00001
L5300
G0B9R5K00001
: MAIN SIGNAL LINE
SA-HT743P/PC POWER CIRCUIT
TERMINAL
INVERTER
INVERTER
DUAL OP-AMP
DC DETECT
DC DETECT
DC DETECT
DC DETECT
INVERTER
SCHEMATIC DIAGRAM-12
POWER CIRCUIT
C
DIGITAL POWER AMP
MUTING
(CENTER SW)
MUTING
MODE SELECTOR
:+B SIGNAL LINE :-B SIGNAL LINE
CHANGE ADD
(C5718)
0.02
CHANGE
DELETE
(C5027)
DELETE
(C5028)
CHANGE
0.02
2.7K
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC
19

5.4. Power (Damp) Circuit (SA-HT940P/PC)
A
B
C
D
E
F
G
H
12345678910111213
123
52
4
51
5
50
6
49
7
48
8
47
9
46
10
45
11
44
12
43
13
42
14
41
15
40
16
39
17
38
18
37
19
36
20
35
21
34
22
33
23
32
24
31
26
3029
25
2827
16
17
1
2
3
4
5
6
14
12
10
8
7
9
11
13
15
1
2
3
4
5
6
14
12
10
8
7
9
11
13
+50V
+30_VDD
+30_VDD
PGND_30
PGND_30
-30_VDD
-30_VDD
DC_DET
+12V
C5101 1000P C5201 1000P C5601 1000P C5301 1000P C5401 1000P C5501 1000P
C5504 50V2.2
C5025
16V56P
C5718
63V220
C5021
16V56P
C5022
16V47
C5914
10V1
AVCC1/2
CLKCTL1/2
CLKIN1/2
CLKMODE1/2
HICSUB
IN1 (SW)
+Vdd1/2
IN2
(CENTER)
HICSUB
PRIN
PRMON
MUTE/
PREN/STBY
AGND1/2
CREF1/2
MUTE_3
CH3IN
GND
NC
MUTE_5,6
CH6IN
CH5IN
MUTE_4
CH4IN
GND
GND
CHMODE
IC1SUB
-Vout1
+Vcc1
+Vout1
GND
+PH1
-PH1
CH3-OUT
-PH2
+PH2
GND
+Vout2
+Vcc2
-Vout2
-VCC5_6
+VCC5_6
CH4-OUT
CH4+OUT
-VCC_PRE
+VCC_PRE
GND
CH6OUT
CH5OUT
+VCC3_4
-VCC3_4
CH3+OUT
C5097
50V10
C5073
0.1
LB5071
J0JKB0000020 +30V
-30V
IC5001
RSN704D66-P
IC5010
C0JBAB000472
Q5096
B1ABCF000011
Q5022
B1ABCF000011
Q5023
B1ABCF000011
Q5014
B1ABCF000011
Q5025
B1ABCF000011
Q5095
B1ABCF000011
Q5031
B1ADBL000010
Q5002
B1ABCF000011
Q5001
B1ABCF000011
L5309
ETQA15A150T
C5029
63V47P
C5071
35V33P
C5076 35V470P C5078 35V470P C5075 35V470P C5077 35V470P
C5030
63V47P
C5318
0.68
C5431
100P
C5487
0.1
C5074
0.1
LB5072
J0JKB0000020
C5072
35V33P
C5067
1000P
C5063
16V10
C5066
1000P
C5062
16V10
C5502
100P
C5512
0.68
C5532
0.1
R5517
22
C5098
1000P
C5531
100P
C5510
0.68
C5530
100P
C5609
0.68
C5013 0.01 C5012 0.01 C5015 390P C5014 100P C5017 390P C5016 100P
C5033
0.1
C5036 0.1C5035 0.1
C5630
100P
C5611
0.68
C5631
100P
1
3
2
4
L5105
ETQA15A150T
JK5400
FL+
SURROUND R
FRONT L
CN5050
AGND
FRONT R
AGND
SUBWOOFER
AGND
SURROUND L
AGND
AGND
CENTER
MODE_S
MODE_F
FHOP
DGND
MUTE_CSW
MOD_DA
SW+
C+
SR+
SR-
SL-
GND
GND
SL+
SW-
C-
1
3
2
4
L5207
ETQA15A150T
1
3
2
4
L5503
ETQA17A150T
1
3
2
4
L5601
ETQA17A150T
1
3
2
4
R5516 0
R5519
8.2K
R5282
22
R5514 0
R5615 0
R5410 220
R5038 220K
R5039
220K
R5037 47K
R5042
1
R5041
1
R5613 0
R5077 0
R5072
1.5K
R5073 22K R5071 0
R5074 4.7K
R5627
8.2K
C5020 0.1
R5070 4.7K
R5487
22
C5230
100P
C5113
0.68
C5130
100P
C5115
0.68
C5181
0.1 R5181
22
R5110
5.6K
R5504
47K
C5183
0.1 R5183
22
R5109
5.6K
C5216
1
C5214
1
C5231
100P
C5131
100P
C5282
0.1
R5209
5.6K
R5284
22K
R5210
5.6K
C5386
0.1
R5411
5.6K
R5311
5.6K
C5406 0.47
R5208 220
R5107 220
R5502 2.2K
D5041 B0ACCK000005
R5506 22K
C5603 50V2.2
C5602
100P
C5019 47P
C5018 47P
C5011
0.1
R5603
47K
C5040
0.1
R5047
10K
R5046
47K
R5053
3.3K
R5050
22K
R5063
10K
R5601 2.2K
R5011 10K R5014
1M
GND
VCC
IN GND OUT
R5056 4.7K
R5605 22K
R5012 100
R5013
1M
R5057 4.7K
R5059 10KR5040 0
R5060 10K
R5062 10K
C5099
0.01
R5052 22K
K5001
0
R5051 22K
R5067 100
R5065 100
R5066 100
R5309 220 C5305 0.47
R5386
22
C5317
0.68
C5430
100P
D5031 B0BC3R400001
R5076 0
IC5002
C0ABBA000163
12
13
14
3
12
4
11
5
10
6
9
7
8
12
78
3
6
4
5
R5048
47K
R5094
1K
R5049
1K
R5021
100K R5022 100K
R5625
100K
R5624 220K
R5023 220K
Q5015
B1ADBL000010
FR+
FR-
FL-
C5031
50V10
R5493 22K R5492 120K
R5082 82K
R5290 150K
R5099
47K
R5081 82K
R5696
10K
R5595
10K
R5626
10K
R5391 68K
C5096
6.3V100
R5189 82K
R5518 10K
R5197 10K
R5080 10K
R5298 10K
R5079 10K
L5023
ELJPC220KFB
L5021
ELJPC220KFB
D5010
B0ACCK000005
D5013
B0ACCE000003
D5012
B0ACCE000003
R5015
1M
X5011
H2A415300001
X5010
H2A375300003
TO
MAIN CIRCUIT
(CN2011) on
SCHEMATIC
DIAGRAM-11
B
TO
SPEAKERS
123
IC5004
C0CBADE00023
C5002
16V100
C5003
16V100
C5001
16V100 -VCC
+VCC
4
2
3
1
2
4
1
3
2
4
1
3
2
4
1
3
2
4
1
3
2
4
1
3
L5600
G0B9R5K00001
L5500
G0B9R5K00001
L5200
G0B9R5K00001
L5100
G0B9R5K00001
L5400
G0B9R5K00001
L5300
G0B9R5K00001
: MAIN SIGNAL LINE
SA-HT940P/PC POWER(DAMP) CIRCUIT
TERMINAL
INVERTER
INVERTER
DUAL OP-AMP
DC DETECT
DC DETECT
DC DETECT
DC DETECT
VOLTAGE DETECT
INVERTER
CHANGE
SCHEMATIC DIAGRAM-12
POWER(DAMP) CIRCUIT
C
DIGITAL POWER AMP
MUTING
(CENTER SW)
MUTING
MODE SELECTOR
:+B SIGNAL LINE :-B SIGNAL LINE
DELETE
(C5027)
CHANGE
0.02
DELETE
(C5028)
0.02
CHANGE
2.7K
ADD
(C5718)
SA-HT740P / SA-HT740PC / SA-HT740PX / SA-HT743P / SA-HT743PC / SA-HT940P / SA-HT940PC
20