Dsp - Yamaha RX-V496 Service Manual

A B
DSP-R496/RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS
I SCHEMATIC DIAGRAM [DSP]
TO INPUT(3) #1
page F-61/J-57 E-4
1
IC2 : HD74HC02FPEL
Quad 2-Input NOR
2
8
4.8
DIGITAL
0
3
1
IN
2 0
4
0
0
3
4.8
14
11
13 6
12
0.1 2.4 7
0
5
7 2.4
0 2
0
1 2.4
0 0
3
4.8
0 0
0
DIGITAL FORMAT INTERFACE RECEIVER
(DIR2)
0
4.8
4
4.8
0
0
0
0
0
0
0
0
5 0
0
0
4.8
4.8 0
4.8
4.8 2.3 8
2.3
0
4.8 2.2
5
6
4.8 4.8
4.4
7
8
TO INPUT(1) #2
page E-60/J-56 G-8
E-63/J-59
C D E
IC1 : NJM2904M
IC8~12 : M5220FP
14 13 12 11 10 9 8
A OUT
Dual OP-Amp
A –IN
A +IN
V–
1 2 3 4 5 6 7
3.1
2.4
DSP + AC-3/PRO-LOGIC/DTS
2.4
1.5
DECODER
0
2.4
(AC3D2av)
0.7
4.5
0.1
0
3.1
0
0
0
0
0
0
4.7
4.7
0
STATIC RAM (1M SRAM)
10
2.3
5
Point
Pin 13 of IC3
V : 2V/div H : 50nsec/div
DC range 1 : 1 probe
0V
2V SAMPLE 50ns
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC's.
1SS355 UPC29M33T-E1
2SC3326(A,B)
DTA143EKA
Anode
C
E
Cathode
B
F G
V+
B OUT
B –IN
B +IN
6
Point
Pin 28 of IC6
V : 2V/div H : 50nsec/div
DC range 1 : 1 probe
0V
2V
0
2.4
2.3
1.5
1.7
~
~
~
~
3.1
0
4.7
0
4.7
0
4.7
1.5
4.7 1.4
2.4
2.4
0
4.8
0
0
0
+3.3V
REGULATOR
3.3 4.8
0
•
IC3: YM3436DK→See page 29(EX), 25(J)
•
IC4: YSS918D-F→See page 30~32(EX), 26~28(J)
•
IC5: M5M51288BKJ→See page 33(EX), 29(J)
•
IC6: CS4227-KQ→See page 34(EX), 30(J)
NJM2904M YM3436DK
HD74HC02FPEL M5M51288BKJ-20LTEL
M5220FP CS4227-KQ
33
34
23
H I
DSP AMP
0
0
0
23.8
-24.1
SAMPLE 50ns
0
0
0
6
0
2.4 -0.1
0
A/D,D/A
0 23.8
0
CONVERTER 4.8
0 -24.1
0
0
(CODEC. -0.1
0
ADC/DAC)
2.4
2.4
0
-0.1
0
23.8
-24.1
0
-0.1
0
L.P.F
2.4 2.4
2.4
2.4
2.4
23.7
23.7
–24.1 –24.1
2.4
2.4 2.4
2.4
2.4
YSS918D-F
51 50
23 22
31
Conditions (RX-V496RDS)
80 → CD
12 • INPUT
30
→ minimum(–∞)
• VOLUME
81
11
• IMPEDANCE
→ Left
SELECTOR
100 1 • PRO LOGIC → On
1
J K L
MAIN L

(DSP)

CENTER
LFE
REAR L
2.4
2.4
All voltages are measured with a 10M Ω /V DC electric volt meter.
#
# Components having special characteristics are marked and
must be replaced with parts having specifications equal to those
originally installed.
# Schematic diagram is subject to change without notice.