Yamaha HTR-5240, Руководство по обслуживанию

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A
1
2
3
4
5
6
8
DSP-R496/RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS
B C D E F G H I J K L
7
E-63/J-59
■
SCHEMATIC DIAGRAM [DSP]
★ 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.
REAR L
DIGITAL
IN
CENTER
MAIN L
(DSP)
LFE
5
6
4.7 2.4 2.3 2.3
0
3.1
0
3.1
2.4
2.4
1.5
0
2.4
0.7
4.5
0.1
0
3.1
0
0
0
0
0
0
4.7
4.7
0
0
2.4
2.3
1.5
1.7
0
3.1
4.7
0
4.7
0
4.7
3.1 0 1.6 3.1 0 2.3 0 0 0 4.7 0
0.1 0.1 0.1
0
2.3 2.3 2.3 2.3 2.3
4.5
4.7 2.4 4.7
0.1 0 0.7 0.7 2.4 0.7 0 0.1 0
4.7
0.7 4.8 4.8 4.8 4.8 2.3 0.7
0
0.1
0
0.1 0.1 0.1 4.8 2.3
0
~
~
~
~
~
~
~ ~
~ ~ ~ ~
~ ~ ~
~ ~ ~
~ ~ ~
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
4.8
0
4.8
4.8
0.1
4.4
4.8 4.8
2.4
2.4
2.4
4.8
4.8
4.8
4.8
4.8
0
4.8
2.3
2.3
2.4
2.4 2.3 4.8 1.4 1.5
0
0
0
0
0
0 0 0 0
2.0
2.0
4.8 4.7
0
4.8
2.3
2.3
2.3
2.2
2.
4
2.
4
2.
4
2.
4
0
0 0 0
2.4
4.9
4.9 4.9 4.9
2.4 2.4 2.4
23.7
2.4
2.4
2.4
23.7
2.4
2.4
2.4
–24.1
2.4
2.4
2.4
-24.1
23.8
-0.1
-0.1
0
0
0
0
-24.1
23.8
-0.1
-0.1
0
0
0
0
-24.1
23.8
0
0
0
0
0
0
–24.1
2.4
2.4
2.4
1.7
0 0 0 0 4.8 0 4.7
2.4 2.4
2.3
0
0
2.4 2.4 2.4
1.4
1.5
2.4
2.4
0
0
0
4.8
0
0
2.4
2.4
2.4
4.8
0
0
0
0
3.3 4.8
~
A/D,D/A
CONVERTER
(CODEC.
ADC/DAC)
+3.3V
REGULATOR
L.P.F
DSP AMP
DSP + AC-3/PRO-LOGIC/DTS
DECODER
(AC3D2av)
STATIC RAM (1M SRAM)
DIGITAL FORMAT INTERFACE RECEIVER
(DIR2)
TO INPUT(3) #1
page F-61/J-57 E-4
TO INPUT(1) #2
page E-60/J-56 G-8
T
O
INPUT(1) #3
page E-60/J-56
D-1
5
4
8 10
7
6
5
1
8
4
3
2
13
1
7
14
11
12
2
3
•
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)
2V SAMPLE 50ns
0V
Point
6
Pin 28 of IC6
V : 2V/div
H : 50nsec/div
DC range 1 : 1 probe
2V SAMPLE 50ns
0V
Point
5
Pin 13 of IC3
V : 2V/div
H : 50nsec/div
DC range 1 : 1 probe
IC2 : HD74HC02FPEL
Quad 2-Input NOR IC1 : NJM2904M
IC8~12 : M5220FP
Dual OP-Amp
1B 1A 1Y 2Y 2A 2B
GND
Vcc 4A 4B 4Y 3Y 3B 3A
1 2 3 4 5 6 7
14 13 12 11 10 9 8
A OUT
A –IN
A +IN
V–
V+
B OUT
B –IN
B +IN
Conditions (RX-V496RDS)
• INPUT
→
CD
• VOLUME
→
minimum(–
∞
)
• IMPEDANCE
SELECTOR
→
Left
• PRO LOGIC
→
On
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC’s.
M5M51288BKJ-20LTEL 1SS355
YM3436DK
CS4227-KQ
YSS918D-F
NJM2904M
M5220FP
UPC29M33T-E1 HD74HC02FPEL 2SC3326(A,B)
DTA143EKA
Anode
Cathode
C
B
E
23 22
12
11
1
23
34
33
50
31
30
1 100
81
80
51