Yamaha RX-V620 Service Manual page 59

A B C
SCHEMATIC DIAGRAM (INPUT 2/2 & OPERATION 1/2)
1
11.9 5.1
5.1
11.9 5.7
5.7
P-E71 11.9
11.3 5.7
J-1
0
0.8 0
0
9.2
0
0
0
0
–5.7
2.6
–5.7
–5.7
–5.7
–5.1
–11.9 –5.1
2
LEVEL CONTROL
RL
0 5.1
0 0 0 –5.1
4.9 0
0 0
5.1 –5.1
0 5.1
0 0
0 0
4.9 0 0 5.1
0 –5.1
C 0 5.1
3
0 0 0 –5.1
4.9 0
0 0
5.1 –5.1
0 5.1
0 0
0 0
4.9 0 0 5.1
0 –5.1
L 0 5.1
0 0 0 –5.1
4.9 0
P-E71
0 0
I-1
5.1 –5.1
0 5.1
4 0 0
0 0
4.9 0 0 5.1
0 –5.1
5
TONE CONTROL
8
3
11.8
0 1
2 0
0
L
P-E71
K-1
6
6
0 7
5 0
0
–11.8
4
11.8
8
3
1 0
0 2
0
7
6
7 0
0 5
0
4
–11.8
µ
IC501, 502 : PC4570G2
Dual OP-Amp
8
OUT 1 8 +V
1 CC
–IN 2 7 OUT
1 2
+ – + –
+IN 3 6 –IN
1 2
–V CC 4 5 +IN 2
9
IC305–307 : CS3310-KSR
Stereo Digital Volume Control
AINL 16
14 AOUTL
MUX
8 MUTE
8
8
1 ZCEN
2 CS
AGNDL 15 CONTROL
AGNDR
10 REGISTER SDATAI
3
16 SERIAL TO
8
PARALLEL 7 SDATAO
REGISTER
10
8
6 SCLK
MUX
11 AOUTR
AINR 9
12 13 4 5
VA+ VA– VD+ DGND
D E F
–14.4
~
–10.9
–27.8
–24.4
FL DRIVER
–27.8
–24.4
4.9 4.9 4.9
~
–24.4
–21.5 –14.8
–27.8
–17.7
–24.7 –24.7 –24.7
~
~
–17.6
–27.8
~
~
4.8
4.8
0
4.8
0
4.8
4.8
4.8
4.9
N. C
4.9
P-E71
4.9
G-9
0
0
0
0
0
4.9
4.9
–11.8
4.9
4.9
–11.8
4.9
4.9
–11.8
IC502 : LC75725E
FL Display Driver
48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
12 11 3 2 14 15
S8 49 32 S25 DIGIT SEGMENT DRIVER
DRIVER
S7 50 31 S26
S6 51 30 S27
BLK 61
S5 52 29 S28
S4 53 28 S29 VFL 1,13
S3 54 27 S30
S2 55 26 S31
DIMMER
GRID
S1 56 25 S32 TIMING
CONTROL
GENERATOR
VSS 57 24 S33
OSCO 58 23 S34
SHIFT REGISTER
OSCI 59 22 S35
VDD 60 21 S36 TIMING
GENERATOR
61 20
BLK S37
DIVIDER
CE 62 19 S38
OSCI
CL 63 18 S39 59 CLOCK
GENERATOR
DI 64 17 S40 OSCO 58
57 60 64
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
G H I
4.9 4.9 4.9
–24.5 –24.5 –24.5
–28.2 –24.8 –24.8 –24.8
–24.5
–24.5
–24.5
–24.8
–24.6
–24.7
–24.6
–24.6
–24.6
–24.6
–28.2
4.8
4.9
3.4
4.8
0
MAIN CPU 5.1
0
4.8
w 0
UPD784217AGF-517
0
2.3
2.9
4.9
RESET
4.8 4.8
4.8
0
0.4
0.4
0
0 0
0
0
Point w (Pin 38 of IC501)
V : 2V/div, H : 0.1 µsec/div
DC, 1 : 1 probe
55 56
0V
MPX
LATCH
Point e-A (/RES : Collector of Q510)
Point e-B (S12 : Emitter of Q511)
V : 5V/div (S12), V : 2V/div (/RES)
DC, 1 : 1 probe, H : 1 sec/div
S12
ADDRESS
DETECTOR
0V
0V
/RES
63 62
AC CORD ON
J K L
–20.5
–28.2
P-E74
K-5
CIRCUIT CHANGES BY MARKET.
e
A
5.6 12.4
e
B
0.6
0
0 0
0 12.4 12.4
11.7
4.9 5.6
5.6
4.9
7.5
0.047F 6.8
0
1.5
0
AC CORD OFF
M N
RX-V620/HTR-5460/RX-V620RDS
O : USED X : NOT USED
Conditions
• INPUT: DVD auto
• PROGRAM: PRO LOGIC DSP
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
72