SCHEMATIC DIAGRAMS-4
SPEAKER TERMINAL & POWER SUPPLY SECTION
HT-R820THX HT-R820THX
U11
P995C
BLU
P995B
RED
P995A
BLK
RL6801
P6801
FRONT
SPEAKERS-B
L
R
P902
D:120W 1A MAX
AC OUTLET
P7503B
TO NADIS-8231
P411A
TO NADG-8230
JL9501B
JL9501A
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.
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
ATTENTION
VA
AFIN D'ASSURER UNE PROTECTION
PERMANENTE CONTRE LES RISQUES
D'INCENDIE, REMPLACER UNIQUEMENT
PAR UN FUSIBLE DE MEME TYPE
ET CALIBRATION COMME INDIQUE.
VA
FOR CONTINUED PROTECTION
AGAINST FIRE HAZARD, REPLACE
ONLY WITH FUSE OF SAME TYPE
AND RATING INDICATED.
CAUTION
NOTE
THE COMPONENTS IDENTIFIED BY MARK ARE CRITICAL FOR SAFETY
REPLACE ONLY WITH PART NUMBER SPECIFIED
VOLTAGE (MEASURED WITH VOLTMETER) 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- 330pF 333- 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.
P6907
NAAF-8245
JL6805B
TO NAAF-8245
JL6952B
TO NAAF-8245
T901
THERMAL FUSE
P901
T902
P901A
AC-H
AC-G
Q921
2SC2458-GR
2SC1740S-R,S
Q6931
NJM78M56FA
TA78057S OR
G
I
O
P917
P918
19
15
16
17
18
P911
P912A
P911A
P912
14
13
12
11
10
9
8
C6933
10/16
C6931
1000/25
C922
100/35
F9501
F901
F903
5A125V
R922
R926
470
(1W)
R9521
3.3
(1/2W)
R6935
120
(2W)
R921
8.2
(1W)
R924 82
(1/2W)
R9503
0.22
(1/2W)
R9502
0.47
(1/2W)
R9501
1
(1/2W)
R6800
NC
R6810
NC
R6801
NC
R6811 NC
R6802
NC
R6812 NC
R6803
NC
R6813 NC
R6804
NC
R6814
NC
R6805
NC
R6815 NC
C9513
223Z
J
J
J
J
J
J
D6933
D6932
D6932,6933:
GP104003E OR
RL1N4003
D925
D922
D921
D924
D923
D921-D924
GP104003E OR
RL1N4003
D6804
D6801
D6800
C6842
C6845
C6852
C6855
C902
472M
/250VAC
C6932
103Z
C901
103M
/275VAC
C921
223Z
C923
223Z
C6804 103J
C6801
103Z
C6800
103J
C6843
C6844
C6854
C6853
C6840
C6841
C6856
C6857
C6850
C6851
C6846
C6847
RL6804
RL6803
RL6800
RL901
P931A
TO NNAF-8245
L6800 NC
L6801
NC
L6802
NC
L6803
NC
L6804
NC
L6805
NC
R923
1K
5.6V
17.8V
0.1V
P6802
CENTER
SPEAKER
L
R
P6931A
TO NAAF-8245
P410A
TO NADG-8230
P6800
FRONT SPEAKERS-A
L
R
JL6803B
TO NAAF-8245
JL6804B
TO NAAF-8245
LSP
RSP
CSP
LSSP
RSSP
SBSP
FLAC1
FLAC2
MPUGND
HPL
AGND
HPR
+5.6V
+24V
S3
S3GND
S3
S2
S2
BRLD
S2
FRLD
S2
CSRLD
+5.6V
+24V
PROTHERM
LSPE
RSPE
POWER
CSPE
SPF
LSSPE
SPCS
RSSPE
SE1H
SBSPE
SPB
VOLH
PRO
MPUGND
+13VS
+13VS
+13VS
PROTHERM
MPUGND
MPUGND
MPUGND
S3GND
+13VS
POWER
PRO
SPF
SPCS
SPB
SE1H
VOLH
+24V
AGND
HPR
HPL
POWER
3
7
NPT-1492D
8A125V
NAPS-8248
NAPS-8247
NAPS-8249
NAETC-8239
NAETC-8238
NAETC-8240
U19
U10
U20
U09
NC
U18
<Notes>
NC=No mount of parts.
NPT-1494D
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
SURROUND
BACK
SPEAKER
NC
NC
NC
NC
SPEAKER TERMINAL PC BOARD
POWER SUPPLY PC BOARD
TERMINAL
PC BOARD
TERMINAL PC BOARD
TERMINAL
PC BOARD
REGULATOR PC BOARD
SURROUND
SPEAKERS
TO NAAF-8245
A
1
2
3
4
5
BCDEFGH
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