Yamaha RX-V2500 Service Manual page 80

A B C
RX-V2500/DSP-AX2500
SCHEMATIC DIAGRAM (CONTROL 1/2)
1
Page 72 B1
to DSP_CB505_19Pin
ANALOG IN
5.0 5.0
5.0
2
FRONT L
CENTER
SURROUND BACK L
PRESENCE L
3
4.9
4 3.0
5.1
5.0
5.0 5.0
5.1
0 5.0
5
5.1
5.1 5.1
0.1
5.1
0.1
5.1
5.1
5.1 5.1
0.1 0
0 0.1 5.1
0 2.1 5.1 5.0
0
0.1
0 1.1
5.1 1.7
5.1
0.1 2.0
0.1 1.4
1.6
0.1 1.4
5.1 0 5.1
5.1
5.1
6 0.1 0
5.1 2.1
2.1 5.1
5.1 1.1 5.1
5.1 5.1
0.1 1.7
0 5.1
5.1 5.1
0.1 1.8 5.1
5.1 5.1
0.1 1.4 5.1
1.7 5.1
0 5.1 5.1
1.2 0
0
5.1 0
0.1 1.5 0
0
0 0.1 1.4 0.1
0.1 2.1 1.6 0.1
0 1.1 1.4 5.0
0 1.7 2.0 4.9
2.0 1.7 0
1.4 1.1 5.1
5.1 1.6 1.5 0
5.1 1.4 2.1 0
0 5.1
5.1
5.1 0
1.2 5.0
7 1.7 5.0
1.4 0.1
1.8 0
1.7 5.0
1.1 0
2.1 0
2.1
0
5.1
5.1
1
2
C-1
8
Key Input (A-D) Pull-Up Resistance 10 k-ohms
U, C, A models
O 0 + 1.2k + 1.2k + 1.8k + 2.7k + 3.3k + 4.7k
V ~ 0.27 ~ 0.75 ~ 1.22 ~ 1.76 ~ 2.28 ~ 2.76 ~ 3.24
PRESET/TUNING PRESET/TUNING PRESET/TUNING TUNING
KEY0 FM/AM MEMORY –
9
< > EDIT MODE
SPEAKERS SPEAKERS PURE TONE STRAIGHT
KEY1 – INPUT MODE A/B/C/D/E
A B DIRECT CONTROL EFFECT
R, T, K, L, J models
O 0 + 1.2k + 1.2k + 1.8k + 2.7k + 3.3k + 4.7k
V ~ 0.27 ~ 0.75 ~ 1.22 ~ 1.76 ~ 2.28 ~ 2.76 ~ 3.24
PRESET/TUNING PRESET/TUNING PRESET/TUNING TUNING
KEY0 FM/AM MEMORY –
< > EDIT MODE
SPEAKERS SPEAKERS PURE TONE STRAIGHT
KEY1 – INPUT MODE A/B/C/D/E
A B DIRECT CONTROL EFFECT
B, G models
O 0 + 1.2k + 1.2k + 1.8k + 2.7k + 3.3k + 4.7k
V ~ 0.27 ~ 0.75 ~ 1.22 ~ 1.76 ~ 2.28 ~ 2.76 ~ 3.24
PRESET/TUNING PRESET/TUNING PRESET/TUNING TUNING RDS
KEY0 FM/AM MEMORY
< > EDIT MODE MODE
SPEAKERS SPEAKERS PURE TONE STRAIGHT
KEY1 – INPUT MODE A/B/C/D/E
A B DIRECT CONTROL EFFECT
10
80
D E F
RGB ENCODER
4.9
2.5
2.5
2.5
1.6
4.0
4.9 1.5
2.5
2.5
2.5
0 0
0
3.2
3.2 0.1
0.1
3.2
3.2 3.2
0.1 0.1
3.2
3.2
3.2 0 0 3.2 3.2
0
3.2
0
3.2
3.2
3.2
0
3.2
5.1 5.1
1.5
0 5.1 2.1 5.0
16 bit µ-COM MAIN CPU
1.1 4.0 5.1
2.1
0 5.1 5.1
1.5
1.5 5.1 1.1 0.1
0.5 1.0 3.7
1.7
0 3.0 0.1 0.1
0.5
0 3.0 0.1 0.1
0.5
0 3.0 0.1 POINT B-1 Pin 20 of IC501 5.0
5.0
0.1
0.3 5.1 4.9
5.0
5.0
4.4 2.0
1.4 0.1
0
0.1
1.6
5.0
0 1.4
5.0 0.1
0
5.0
0
5.0
5.0
0.1 5.0
0.1
0
0.1
0 4.8
5.0
5.0
5.0
0.1 0.2
0.1
3.0 5.0
3.0 4.8
3.0 3.9
1.5 5.1
0.1 0.1
0
0
0.1 5.0
5.1 5.0
B-1
5.0 5.0
0.1
0
0
0
0
5.0
0
0
0.1
5.1 0.1
3.1
3.6
0 0
5.0
8.6
5.9 5.1 3.9
0 5.1 9.3 3.9
0
5.1 4.4
3.7
4.4
Page 71
to DSP_CB503_23Pin
+ 8.2k + 18.0k + 47.0k
~ 3.76 ~ 4.26 ~ 4.75
ZONE ON/OFF ZONE ON/OFF
–
MAIN ZONE2
– –
+ 8.2k + 18.0k + 47.0k
~ 3.76 ~ 4.26 ~ 4.75
– – –
IC556, 558: SN74LV32APWR
– – Quadruple 2-Input Positive-OR Gates
+ 8.2k + 18.0k + 47.0k
~ 3.76 ~ 4.26 ~ 4.75
1A 1 14 Vcc
PTY PTY
EON
MODE START 1B 2 13 4B
– –
1Y 3 12 4A
2A 4 11 4Y
2B 5 10 3B
2Y 6 9 3A
GND 7 8 3Y
G H
3.0
0
3.0
0
0 0
0
B-2
0
2.2
0
1.9
3.0 0
0
3.1
0 1.5
2.2
3.2
0
2.5
2.2 3.0
2.2 0.1
0.1
0
2.1
0.1
0.1
0
0.1
0.1
0.1 0.1
0.1 0.1
0.1
0
3.0 POINT B-2 Pin 239 of IC502 0.1
0.1
0.1
0.1 0.1
0.1 0.1
0.1 3.0
0.1
0
0
0 0.1
0 0.1
0 0.1
5.1 0.1
3.0 0.1
3.2 0
3.2 0.1
0.1
0
0.1
0
0.1
3.0
1.4
0
0.1
1.7 0.1
0
0.9
3.0 0.1
0.1
0.1
2.6
0.1
3.0
2.8
0 0
2.6
2.2
3.0 2.8
11.2
11.2
11.2
-11.9
0.1
0
11.2
11.2
11.2
-11.9
0.1
0
5.1
0 11.2
5.1
11.2
11.2
-11.9
0.1
0
11.2
11.2
11.2
-11.9
0.1
0
11.2
5.1
11.2
5.1 4.4
5.1
11.2 5.1
-11.9
0.1
0.1 0.1
0 5.1
0
11.2 5.1 5.0
0 7.2 5.1
5.1 5.1
5.1
0.1
7.8
0.8 5.1 5.1
0
0
F1
IC551, 553: SN74AHC1G00DCKR IC552: SN74AHC1G86DCKR IC554: SN74AHC1G32DCKR
2-Input NAND Gate Single 2-Input Exclusive-OR Gate 2-Input or Gate
A 1 5 Vcc A 1 5 Vcc A 1
B 2 B 2 B 2
GND 3 4 Y GND 3 4 Y GND 3
IC557: SN74LV00APWR IC559, 616: SN74AHC1G08DCKR IC571: RH5RE58AA-T1-FA
Quadruple 2-Input Positive-NAND Gates IC560: SN74AHCT08PWR IC572: RH5RE39AA-T1-FA
Quad 2-Input And Gate Voltage Regulator
1A 1 14 Vcc
V IN 2
1B 2 13 4B 1A 1 14 Vcc
1B 2 13 4B
1Y 3 12 4A
1Y 3 12 4A
2A 4 11 4Y
2A 4 11 4Y
2B 5 10 3B
Vref
2B 5 10 3B
2Y 6 9 3A
2Y 6 9 3A
GND 7 8 3Y
GND 7 8 3Y
I J K
★ All voltages are measured with a 10MΩ/V DC electronic volt meter.
★ Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★ Schematic diagram is subject to change without notice.
O : USED / APPLICABLE
X : NOT USED
UR067100 UR237100 UR237100 UR237100 UR237100 UR237100 UR067100 UR237100
10/50 10/16 10/16 10/16 10/16 10/16 10/50 10/16
UR268100 UR268330 UR268330 UR268330 UR268330 UR268330 UR268100 UR268330
100/50 330/50 330/50 330/50 330/50 330/50 100/50 330/50
IC503: MBM29LV320BE90T IC504: W986432DH-7
4Mbit Flash Memory SDRAM
RY/BY DQ15 to DQ0
VCC 1
DQ0 2
RY/BY
Buffer
VccQ 3
VCC
DQ1 4
VSS Erase Voltage Input/Output
DQ2 5
Generator Buffers
GND 6
WE DQ3 7
State
Control DQ4 8
BYTE
VccQ 9
RESET
Command DQ5 10
WP/ACC Register
Program Voltage DQ6 11
Generator Chip Enable STB
Data Latch GND 12
Output Enable
CE Logic DQ7 13
OE NC 14
VCC 15
DQM0 16
WE 17
Y-Decoder Y-Gating
STB
CAS 18
RAS 19
Timer for
Low Vcc Detector Address CS 20
Program/Erase Latch
X-Decoder
Cell Matrix NC 21
A20 to A0 A22 22
A13 23
A-1
A12 24
A2 25
A3 26
A4 27
DQM2 28
Vcc 29
NC 30
DQ10 31
GND 32
DQ17 33
DQ18 34
POINT C-1 1/Pin 7, 2/Pin8 of CB505 VccQ 35
DQ19 36
DQ20 37
GND 38
DQ21 39
DQ22 40
VccQ 41
DQ23 42
Vcc 43
1 +5M
2 /RES
IC505: MB3516APF-G-BND
RGB Encoder
POWER ON POWER OFF
(connect the power cable) (disconnetct the power cable)
GND2 R-OUT
24 23
R-output
buffer
75 Ω drive
1 +5M
2 /RES
CSYNC
POWER ON
(connect the power cable)
Clamp
1 2
GND1 R-IN
1 +5M
IC531: TC74HC4051AFEL
Analog Multiplexer/Demultiplexer
2 /RES
INHIBIT VCC
6
5 Vcc
A 11
POWER ON
LEVEL
(connect the power cable) B 10
CONVERTER
4 Y
C
9
GND 8
VEE 7
IC573: SN74AHCT126PW
0
13
Quadruple Bus Buffer Gates with 3-state Outputs
1 14
2
15
3 12
1A 1 14 VCC
4 1
3 V OUT
1Y 2 13 6A 5 5
6 2
2A 3 12 6Y
7
4
2Y 4 11 5A
3A 5 10 5Y
INPUT STATES
INHIBIT C B A
3Y 6 9 4A
1 GND
0 0 0 0
0 0 0 1
GND 7 8 4Y
0 0 1 0
0 0 1 1
0 1 0 0
0 1 0 1
0 1 1 0
0 1 1 1
1 X X X
L M N
IC502: YGV619
Advanced Video Display processor 6
D31-0
A23-2
CSREG
CSMEM
DREQ
RD
DRAWING
CPU
A1/WR3 SDQ31-0
PROCESSOR
INTERFACE
UNIT
WR2-0 SA12-0
SBA1-0
WAIT
SDRAM
READY INTERFACE SCS
INT RAS
RESET CAS
WE
SYCKIN DQM3-0
SYCKOUT SDCLK
VIDEO
CAPTURE
FSC CONTROLLER
CSYNC
HSYNC
HSIN
CRT
CONTROLLER
VSIN
AT1-0
DCKIN
GCKOUT
DCKOUT
PIXEL
DRO[5:0]
GCKIN DATA
CONTROLLER DGO[5:0]
DRI[5:0]
DBO[5:0]
DGI[5:0]
DAC
DBI[5:0] R, G, B
86 GND CLK
CLOCK
85 DQ15 BUFFER
84 GND
CKE
83 DQ14
82 DQ13
81 VccQ
80 DQ12 CS CONTROL
SIGNAL
79 DQ11
MONITOR
RAS
78 GND
COMMAND
77 DQ10 DECODER
CAS
76 DQ9
COLUMN DECODER COLUMN DECODER
75 VccQ WE
74 DQ8
73 NC
72 GND CELL ARRAY CELL ARRAY
A10/AP
71 DQM1 BANK #0 BANK #0
70 NC
69 NC MODE
REGISTER
68 CLK A2
SENSE AMPLIFIER SENSE AMPLIFIER
ADDRESS
67 CKE BUFFER
A22
66 A11
65 A10
64 A9
63 A8
62 A7
DQ0
DATA CONTROL DQ
61 A6 |
CIRCUIT BUFFER
DQ31
60 A5
59 DQM3
REFRESH COLUMN
58 GND COUNTER COUNTER
DQM0~3
57 NC
56 DQ31
55 VccQ
54 DQ30
53 DQ29
52 GND COLUMN DECODER COLUMN DECODER
51 DQ28
50 DQ27
49 VccQ
CELL ARRAY CELL ARRAY
48 DQ26 BANK #0 BANK #0
47 DQ25
46 GND
45 DQ24
SENSE AMPLIFIER SENSE AMPLIFIER
44 GND
IC511 - 516, 521 - 526: SN74LV245APWR
Octal Bus Transceiver with 3-state Outputs
G-OUT B-OUT VIDEO-OUT Vcc2 N.C. Y-TRAP Y-OUT CROMA-OUT N.C. N.C.
22 21 20 19 18 17 16 15 14 13 DIR 1 20
G-output B-output VIDEO Y-output CROMA A1 2 19
buffer buffer output buffer buffer output buffer
75 Ω drive 75 Ω drive 75 Ω drive 75 Ω drive 75 Ω drive
A2 3 18
Y/C
MIX
A3 4 17
buffer
Y A4 5 16
M
a
R-Y 6 15
t LPF R-Y A5
r
modulation
i
x B-Y A6 7 14
LPF B-Y
modulation
CSYNC CSYNC A7 8 13
Burst generation
Phase
Clamp Clamp LPF & NTSC/PAL A8 9 12
generation
selection
GND 10 11
3 4 5 6 7 8 9 10 11 12
G-IN B-IN N.C. fsc-IN NTSC/PAL-IN N.C. N.C. CSYNC-IN N.C. Vcc1
IC532 - 536: SN74LV573APWR
Octal Transparent D-Type Latches
with 3-state Outputs
16
OE 1 20 V
CC
1D 2 19 1Q
BINARY TO 1-OF-8
2D 3 18 2Q
DECODER WITH INHIBIT
3D 4 17 3Q
4D 5 16 4Q
5D 6 15 5Q
COM
SW 3
6D 7 14 6Q
SW
7D 8 13 7Q
SW
SW 8D 9 12 8Q
SW GND 10 11 LE
SW
SW
SW 1
OE
11
LE
"ON" CHANNNEL
C1
19
0 2
1D 1D
1
2
3
4
5 To Seven Other Channels
6
7
NONE
Vcc
OE
B1
B2
B3
B4
B5
B6
B7
B8
1Q