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TX-SR805/SA805
Ref. No. 3994
052007
SERVICE MANUAL
AV RECEIVER
MODEL TX-SR805
MODEL TX-SA805 ON STANDBY
TV
INPUT
DVD VCR/DVR CBL/SAT
1 2 3 +
GAME/TV AUX1 AUX2 TV CH
4 5 6 -
TAPE TUNER CD
7 8 9
PHONO D. TUN TV VOL
+10 0 CLEAR
--/--- 10 11 12
MASTER VOLUME INPUT SELECTOR
MACRO
1 2 3 ZONE3
REMOTE MODE
DVD VCR CD ZONE2
STANDBY/ON
CDR/MD
TV CABLE DOCK RECEIVER
SAT TAPE/AMP
DIMMER SLEEP
STANDBY
E NU ME N
PM U
TO
READY
+
ZONE 2
CH
DISC ENTER VOL
ALBUM
ZONE 3
- GU
T
I DE EX I
PREV SE
TUP RN
CH RETU
DISPLAY MUTING
PURE AUDIO AUDIO SEL DVD VCR/DVR CBL/SAT GAME/TV AUX 1 AUX 2 TAPE TUNER CD PHONO DISPLAY
PUSH TO OPEN
REC PLAYLIST RANDOM
LISTENING MODE
STEREO SURR
REPEAT AUDIO SUBTITLE PLAY MODE
PURE A DIRECT THX ALL ST
TEST TONE CH SEL LEVEL- LEVEL+
OPEN/CLOSE VIDEO OFF S. RESTORE
AUDIO SEL L NIGHT Re-EQ
VCR DVD HDD
RC-690M
RC-690M
TX-SR805 Black, Golden and Silver models
B UDC, S UDC, B MDC, S MDC 120V AC, 60Hz
G UDT, G MDT
B UMP, S UMP, B MMP, S MMP 220-240V AC, 50Hz
B MMA, S MMA, B MMA, S MMA
G UMK, G UMQ, G UMT 220-240V AC, 50/60Hz
G MMK, G MMQ, G MMT
TX-SA805 Golden models
G UMR, G MMR 220-240V AC, 50/60Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK ON THE
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
TX-SR805/SA805
A B C D
SCHEMATIC DIAGRAM-10 (SD-10)
DSP SECTION-1 TO NAHDM-9107(2/2) TO N
SD-16:H4 S
P3805A
10
30
29
28
27
26
25
24
23
22
21
20
19
18
9
PCMSBLR/DSDSR 8
7
PCMCSW/DSDSW 6
PCMLRCK/DSDFR 5
PCMBCK/DSDCLK 4
3
2
1
NADSP-9072(1/2)
HDPCMSW
DSDRCSW
DSDDISW
DSP3RST
DSP2RST
DSP1RST
PCMSLR/DSDC
MEQMUT
PCMLR/DSDFL
DSP3INT
DSP2INT
DSP1INT
DIRSW
MCK_HDMI
U25
DEC
NIC
HDSPDIF
1
GNDHD
GNDHD
DSP PC BOARD
C3325
104Z
HDMISPF_3.3V
DSDFR
PCMF1/DSDFL C3391 104Z
PCMSUR1/DSDC
R3391
PCMCSW1/DSDSW +5.0V
47
PCMSB1/DSDSR
DSDSL 1 14
+2.4VDSP23
VCC
+3.3VDSP
2 13
GNDDG
3 12
MCK_HD
PCMF
4 11
5 10
MCK_DIR
MCK 6 9
SDOUT_DIR
DSDSR/RC 7 8
47
R3318
GND
330
330
330
330
330
330
47
47
330
330
47
47
Q3391
LM182
R3323
R3322
R3321
R3320
R3319
L3312
R3328
R3327
R3326
R3307
R3306
R3305
R3304
TC74VHCT08AFT
LBC2518T470M
+3.3V
L3301
+3.3V
16
15
14
13
12
10
16
15
14
13
12
10
11
11
16
15
14
13
12
10
11
9
9
9
TC74VHC157FT
TC74VHC157FT
TC74VHC157FT
VCC
VCC
ST
4A
4B
4Y
3A
3B
3Y
VCC
ST
4A
4B
4Y
3A
3B
3Y
ST
4A
4B
4Y
3A
3B
3Y
100/4
PCMBCK/DSDCLK
Q3301
Q3311
104Z
C3311 104Z
C3315 104Z
Q3325
2
SELECT
SELECT
SELECT
C3301
C3302
GND
GND
GND
1A
1B
1Y
2A
2B
2Y
1A
1B
1Y
2A
2B
2Y
1A
1B
1Y
2A
2B
2Y
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7