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Popular Onkyo TX-DS474 Manual Pages
Service Manual - Page 1
... TO THE CUSTOMER.
No. 3615
AUDIO VIDEO CONTROL RECEIVER MODEL TX-DS474
0.143[1r0
Rft
1
CZ=
I II I I I I I
Ref. section
35
Schematic diagram
39
Exploded view TX-DS474
61
Parts list TX-DS474
63
Packing view TX-DS474
69
-1 - COMPONENTS IDENTIFIED BY MARK Lb. ONKYO ® SERVICE MANUAL
TX-DS474 I
O O
Black, Silver, and Golden models
BMD BMP, BMPT, BMPA, SMP, GMFT BMWT, BMWR...
Service Manual - Page 3
For continued protection against
fire hazard, replace with local power supplies. Ce darnier est indique la qu le present symbol est
appose.
To perform a result, please follow the procedure below . Safety-check out (Only U.S.A. model) After correcting the original service problem, perform the following safety check before releasing the set to 220V at the factory. The...
Service Manual - Page 7
...
VOLUME PC BOARD (NAETC-649I-4A/4B)
CIRCUIT NO. PART NO. PART NO.
DESCRIPTION
IC
Q7801
22240051R2
NJM2068M
Capacitors
C7802
354741009
10 F,16V,Elect.
C1510
374724734
0.047 µ F±5%,50V,Plastic
C1511
37, 4721044
0.1 µ F±5%,50V,Plastic
C1512
354744709
47g F,16V,Elect. TX-DS474
CAUTION: Replacement of the transistor of mark *, if necessary, must...
Service Manual - Page 8
...
CS4226-KQ
Q7401
22241219R3 or DSPF56009FJ88 or
22241235R3
XCF56009FJ88
Q7402
22241101R2
LC32464M-80
Remote sensor
U7001
241305
GP1U281X
Transistors
Q7002
2214490R2
RN1404
Q7003
2214540R2
RN2403
O7005,O7006 ... F,25V,Elect. C935
354741009
10 1.4. PRINTED CIRCUIT BOARD-PARTS LIST
MODEL TX-DS474
NS : No Spare Part
DISPLAY CIRCUIT PC BOARD (NADIS-6487-3A/3B/3C/3D)
CIRCUIT NO.
Service Manual - Page 9
...;.5%,1W,Metal 2.2 4 ±5%,1/4W,Metal N06HR2.2KBE,Trinuning 0.22 4 ±5%,1/4W,Metal DIGITAL INPUT PC BOARD (NADG-6489-3A/3B/3C/3D)
CIRCUIT NO. PART NO.
TX-DS474
CAUTION: Replacement of the transistor of mark *, if necessary, must be made from the same beta group (HFE) as the original type. DESCRIPTION
P7003
25045514
YIO326...
Service Manual - Page 10
...3C/3D)
CIRCUIT NO. C5043,C504 374721015
100pF±10%,50V,Plastic
C505,C506 354742219
220 µ F,16V,Elect.
PART NO.
DESCRIPTION
ICs
O3181,O3281 22240247 or
BA15218N or
Q3581,O4101 22240293
NJM4558L-D
Q3171
22241296
M62447SP
Q201
222840661
4066E
Transistors
...DC18-138
VOLUME CIRCUIT PC BOARD (NAVD-6497-3A/3B/3C/3D)
CIRCUIT NO. PART NO. TX-DS474
CIRCUIT NO.
Service Manual - Page 11
...3A/125V
MULTI-CHANNEL TERMINAL PC BOARD(NAAF-6500-3A/3B/3C/3D)
CIRCUIT NO. PART NO. CIRCUIT NO.
DESCRIPTION
Transistor
0951
2215830 or NS KI3C105M or
Q951 or
2213640
DTC123JS...
C952
354761019
100 µ F,35V,Elect.
REPLACE ONLY WITH PART NUMBER SPECIFIED.
TX-DS474
NOTE: THE COMPONENTS IDENTIFIDE BY MARK P ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
Service Manual - Page 12
....capacitor
JL3901B
25050270
NSCT-6P98,Socket
JL3902B
25050267
NSCT-3P95,Socket
NOTE: : 120V model only : European model only : Asian model only : Worldwide model only : Australian model only
CIRCUIT NO.
C146
354780109
1 g F,50V,Elect. C148
354780109
1 g F,50V,Elect.
PART NO.
TX-DS474
TUNER PC BOARD (NARF-6509-3A/3B/3C/3D)
CIRCUIT NO.
C128
354741009...
Service Manual - Page 13
... i. 4±0.2V-Less than 9.OV
(230V model) AM tuned voltage: 531kHz-1602kHa
1. 4±O. 2V-Less than I .4±0.2V Maximum
L172
Maximum
-24- fX-DS474
ADJUSTMENT PROCEDURES
Preparation
1. Outputs
FM mono: lkHz,...Repeat the steps 1 and 3 until no further adjustment is necessary. Reference Specification
FM tuned vol Cage: 87.
OMHz
or TUNED
R141
indicator
Minimum Minimum
Maximum and...
Service Manual - Page 15
...of DC detection circuit Press and hold down CD button, then press SPEAKERS-MAIN and SPEAKERS-REMOTE buttons at the same time. Next, press CD button. Apply DC 1.5-3V to MULTI CHANNEL... FL tube is turned ON. Readjust the above points after the power switch is turned OFF.
2. TX-DS474
Idling current adjustment
Before Idling adjustment, turn POWER to ON, adjust the trimming resistors R573, R574, ...
Service Manual - Page 17
...rt r-t 7 -- Pin No. Digital ground
42 RX1
Receiver channel 1
43 SCLKAUX/RX2 I/O Auxiliary bit clock input or output / receiver channel 2
Auxiliary word clock input or output / 44 LRCKAUX...
AOUT3
AIN2R/FREQ1
AOUT2
AIN1R
AOUT1
AIN1L
AGND2
AINAUX
VA+ •
CMOUT
AGND1
FlLT
TX-DS474
Pin No.
Crystal connections O Overload indicator
O Master clock output
32 SDIN3
I Serial ...
Service Manual - Page 19
... I MULTI 414(1 I
MIC I
>
NIC 2 0
MID VOLLME
TA-SE550 only
D
AA
0
MULTI CHANNEL INPUT
OHO
c-1N
VIDEO-2 LouT
E
MONITOR OUT
VIDE SELECTOR
-35 -
mICON FL TUBE
TX-DS474 /
Re-E0
-EP OFF -0
EO ON
MASTER VOLUME
VOCAL MIX
TONE/3-08
7221
Re-ES
F4E4tILN IA-SE O only
IONE/3-0B
>
7177
FE - 00 OFF...
Service Manual - Page 23
...
0:24" en
4 mvgi .ho2
41548 AIAO•I
21350
911 33** N,11,
033 _6
57es
10
iftt 1017
4
sw POE OUT
0
-51-
-52- PA
04101
103034113
TX-DS474
G
B C
■°
E
11-51550 021
- 15/2 512 14
16501 P2 11
11.1 Pn 12
1- 10 , 2 212 11
-
A
SCHEMATIC DIAGRAM
NCVD-6497-)7
A
600, 112
°000...
Service Manual - Page 26
EXPLODED VIEW
MODEL TX-DS474
U13 U8
4
2 U1
P7001
33
U4
U6 U5
34 32
2 50
64c-t-o-
48
a
2
43
42
Service Manual - Page 30
...Carton box
: European model only
Carton box
: Worldwide model only
Carton box
: Asian model only
Carton box
: Australian mode only
Label UPC board ass'y
Label EAN
Label EAN
Label EAN
350*250,Styrene bag
Warranty card
Service Station list
Instruction manual E
Instruction manual GDSW
Instruction manual FSI
Instruction manual T
RC-385S, Remote controller
UM-3, Battery...
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