SCHEMATIC DIAGRAM-5
SPEAKER TERMINAL & POWER SUPPLY SECTION
TX-SR402/8240/HT-R420
TX-SR402/8240/HT-R420
A
1
2
3
4
5
B
C
D
E
F
G
H
P6800
FRONT SPEAKERS-A
FRONT SPEAKERS-B
L
R
L
R
0.1V
[0.1V]
R923 1K
L6800
S1.3C
TX-SR402 ONLY
L6801
S1.3C
TX-SR402 ONLY
L6802
S1.3C
TX-SR402 ONLY
L6803
S1.3C
TX-SR402 ONLY
L6804
S1.3C
TX-SR402 ONLY
P931A
TO NNAF-7875
RL901
RL6600
RL6601
RL6603
RL6604
C923
223Z
C921
223Z
C6856
102K
C6855
102K
C6851
102K
C6850
102K
C6841 102J
C6840 102J
C901
103M
/275VAC
C902
472M
/250VAC
NC
C6932
103Z
C6842 102J
P/W/G TYPE ONLY
C6843
102J
C6844 102J
C6852
102K
C6853
102K
C6854
102K
C6600
103J
C6601
103Z
C6604
103J
D924
D922
D923
D921-D924
GP104003E OR
RL1N4003
D921
D925
D6932
D6932,6933:
GP104003E OR
RL1N4003
D6933
D6600
D6601
D6604
J5320
J
HT-R420 ONLY
J
HT-R420 ONLY
J6306
J
HT-R420 ONLY
J
HT-R420 ONLY
J
HT-R420 ONLY
C9513
223Z
R924 82
(1/2W)
R926
4.7K
R921
R6810
22
R6800
22
R6811
22
R6801
22
R9501
1 (1/2W)
R9502
0.47 (1/2W)
R9521
2.7 [3.9]
(1/2W)
R9503
0.22
(1/2W)
R6935
120
(2W)
R6812
22
R6802
22
R6813
22
R6803
22
R6814
22
R6804
22
F902
F903
T2.5AL250V
F902
F903
T2.5AL250V
F903
5A/125V
F901
F9501
NC
F902
F901
F903
T2.5AL250V
C922
220/35
C6931
1000/25
C6933
10/16
P911
P911A
P912A
P912
P911
P911A
P912A
P912
P911
P911A
P913A
P912A
P913
P912
8
9
10
11
12
13
14
P912
P911A
P912A
P911
P918
P917
P918A
P917A
18
17
16
15
19
Q6931
NJM78M56FA
G
IO
Q921
2SC2458-GR
KTC3199-GR
2SC1740S-R,S
P901A
AC-H
AC-G
T902
PA, PT TYPE
T902
GR TYPE
T902
WT TYPE
T902
HT-R420
SEE LEFT DIAGRAM
FOR OTHER TYPE
P901
S906
POWER
NO USE
NC
S902
VOLTAGE
SELECTOR
220V
120V
T901
THERMAL FUSE
T901
THERMAL FUSE
T901
THERMAL FUSE
T901
THERMAL FUSE
P6802
SPEAKER
CENTER
L
R
SURROUND SPEAKERS
JL6803B
TO NAAF-7875
JL6804B
TO NAAF-7875
JL6951B
TO NAAF-7875
JL6952B
TO NAAF-7875
JL6805B
TO NAAF-7875
P6931A
TO NAAF-7875
E921
NOTE
.THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED.
.VOLTAGE (MEASURED WITHVOLTMETER) IS DC VOLTAGE.(NO INPUT SIGNAL)
.ALL PNP TRANSISTORS ARE EQUIVALENT TO 2SA1015-GR UNLESS OTHERWISE NOTED.
.ALL NPN TRANSISTORS ARE EQUIVALENT TO 2SC1815-GR UNLESS OTHERWISE NOTED.
.ALL DIODES ARE EQUIVALENT TO 1SS133 UNLESS OTHERWISE NOTED.
.ELECTROLYTIC CAPACITORS ( )ARE IN u F/WV.
.ALL CAPACITORS ARE IN pF/50WV UNLESS OTHERWISE NOTED.
EX) 030- 3pF 330- 33pF 331- 330pF333- 0.033uF
.ALL RESISTORS ARE IN OHMS 1/4WATTS UNLESS OTHERWISE NOTED.
.THE THICK LINES ON PC BOARD ARE THE PRINTING SIDE OF THE PARTS.
EX) PRINTING SIDE
.CIRCUIT IS SUBJECT TO CHANGE FOR IMPROVEMENT.
. IS DC VOLTAGE, AT NO INPUT SIGNAL.
V
A
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
AND RATING INDICATED.
CAUTION
ATTENTION
V
A
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
THIS SYMBOL LOCATED NEAR THE FUSE INDICATES
THAT THE FUSE USED IS SLOW OPERATING TYPE
FOR CONTINUED PROTECTION AGAINST FIRE
HAZARD,REPLACE WITH SAME TYPE FUSE. FOR FUSE
RATING REFER TO THE MARKING ADJACENT TO THE SYMBOL
CE SYMBOLE INDIQUE QUE LE FUSIBLE UTLISE EST
E LENT. POUR UNE PROTECTION PERMANENTE,N'UTILISER
QUE DES FUSIBLES DE MEME TYPE. CE DARNIER EST
INDIQUE LA QU LE PRESENT SYMBOL EST APPOSE.
JL9501
JL9501B
P411A
TO NADG-7401
P410A
TO NADG-7401
P7503B
TO NADIS-7403
P902
AC OUTLET
100WMAX
P902
D:120W
AC OUTLET
1A MAX
P902
AC OUTLET
100WMAX
P902
AC OUTLET
100WMAX
FLAC1
FLAC2
MPUGND
MPUGND
HPL
AGND
LSP
HPR
RSP
+5.6V
CSP
LSSP
RSSP
+24V
S3
S3GND
S3GND
S3
S2
S2
S2
S2
+5.6V
POWER
SPF
SPCS
SE1H
SPB
VOLH/THPRO
PRO
MPUGND
+13VS
BRLD
FRLD
VOLH/THPRO
CSRLD
MPUGND
MPUGND
S3GND
+13VS
POWER
PRO
SPF
SPCS
SPB
SE1H
+24V
AGND
HPR
HPL
+24V
LSPE
RSPE
CSPE
LSSPE
RSSPE
+13VS
+13VS
MPUGND
MPUGND
POWER
7
3
7
7
1
3
7
HT-R420
TYPE
F901
F902
DD, DC
8A/125V
NO
NO
PA, PT
T3.15AL250V
WT
8A/125V
T3.15AL250V
TX-SR402/TX-SR8240
TYPE
F901
F902
DD, DC -
-
PA, PT
-
-
GR
NO
T3.15AL250V
JJ
-
-
WT
-
-
TYPE
AC IN
DD, DC
120V 60HZ
PA, PT
230-240V 50HZ
GR
220V 50/60HZ
JJ
-
WT
120V/220V 50/60HZ
T901
TYPE
TX-SR402/8240 HT-R420
DD, DC
-
NPT-1491D
PA, PT
-
NPT-1491P
GR
NPT-1463G
-
JJ
-
-
WT
-
NPT-1491DG
T902
TYPE
DD, DC NPT-1492D
PA, PT
NPT-1358P
GR
NPT-1358DG
JJ
-
WT
NPT-1358DG
NAPS-7876
NAPS-7876
NAPS-7876
NAPS-7878
NAPS-7876
NASW-7882
NAPS-7877
NAETC-7870
NAETC-7869
NAETC-7868
U12
SPEAKER TERMINAL
PC BOARD
U10
REGULATOR PC BOARD
U18
TERMINAL
PC BOARD
U19
POWER SUPPLY PC BOARD
U11
TERMINAL PC BOARD
U20
TERMINAL PC BOARD
Refer to the following table about the parts displayed by mark" "
<Notes>
NC=No mount of parts.
[ ] VALUES ARE
FOR HT-R420
Refer to the following table about the parts displayed by mark" "
