A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
RX-V2500/DSP-AX2500
SCHEMATIC DIAGRAM (CONTROL 1/2)
80
★ 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.
5.0
5.0
5.0
2.5
2.5
4.9
4.9
2.5
4.0
1.5
2.5
2.5
2.5
0
1.6
0
0
2.1
2.1
2.0
1.7
1.5
1.1
1.7
1.7
1.7
2.0
1.5
1.5
1.6
1.2
0.1
1.2
0.1
1.7
3.2
0
1.2
1.7
3.2
0
0
0
4.9
5.0
5.0
0.1
0
3.2
0
1.2
0
0
3.3
0.1
1.0
2.1
1.7
1.6
2.0
1.8
2.2
1.4
0
3.0
3.2
0
0
2.8
2.8
2.4
1.8
2.0
1.8
1.6
1.6
1.6
0
0.1
0.1
0
0
2.8
2.8
0
2.1
2.8
0
0
0.1
5.1
5.0
0
0.1
0.6
3.4
0
0
0
0
3.2
0
0
0
0
0
1.2
0
3.2
0
3.3
0.1
0.1
0.1
0
0
0
5.1
0.1
0.1
0.1
0.1
0.1
0
0.1
0.1
3.0
3.2
3.0
1.7
1.6
1.6
1.6
1.8
1.8
2.0
0
0.1
2.1
0.1
2.2
2.2
0
0
3.2
2.2
2.4
3.2
3.0
1.4
2.2
1.6
1.8
2.0
1.7
1.0
0
0
0
0.9
2.8
2.2
0
2.1
3.2
3.0
2.1
2.8
2.8
0
0
0
0
2.2
2.2
2.2
2.2
2.2
2.2
2.2
3.0
2.3
3.2
1.6
0.1
0
1.5
2.0
1.7
1.1
1.5
2.0
1.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
3.0
2.3
3.2
1.7
1.2
0
1.5
1.7
1.7
1.2
1.7
2.1
1.2
0
1.7
2.0
1.8
2.2
1.6
0
1.4
2.4
0.1
3.2
0
2.4
2.6
3.0
2.8
2.5
2.3
3.1
0
1.8
2.0
1.8
1.6
1.6
1.6
0
1.7
0
3.2
0
3.1
2.6
2.3
2.5
2.6
2.6
0.3
2.1
0
1.2
1.7
1.7
1.7
1.5
1.7
0
1.2
2.1
2.1
0
1.1
1.7
1.8
1.4
1.7
1.2
1.9
3.2
2.0
1.1
1.5
1.7
2.0
1.5
1.6
0
0.1
2.1
0.1
0
1.1
1.7
2.0
1.4
1.6
1.4
1.9
3.2
0.1
0.1
3.2
3.2
0
0
0.1
3.2
3.2
3.2
0.1
0
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
3.2
0
0
5.0
5.0
5.0
5.1
5.1
5.1
5.1
0
5.1
5.0
3.0
4.9
0
3.0
0.1
3.0
0.1
0.1
0
0.1
0.1
3.9
0.1
2.8
2.2
2.8
2.6
2.6
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
3.0
0.1
0.1
0
0.1
0.1
0.1
3.0
0
3.0
0
3.0
3.0
0.1
3.0
0.1
0
0.1
0
0.1
0.1
0.1
0
0.1
0.1
0
0.1
1.6
0.1
0.1
0.9
1.4
0.7
0.7
0.1
0
0.1
0.1
0
0.1
0
0.1
0
0.1
0.1
3.0
0.1
3.0
0.1
3.0
0.1
3.0
0.1
3.0
0.1
0
0.1
2.1
1.1
1.7
2.0
1.4
1.6
1.4
0
0.1
0
0
0
5.1
5.1
0.1
0.1
0.1
0
2.1
2.1
1.1
1.7
1.8
1.4
1.7
1.2
0
0
0.1
2.1
1.1
1.7
2.0
1.4
1.6
1.4
0
0
0.1
0.1
5.0
4.9
0
5.1
0
0
5.1
0.1
5.1
5.1
0.1
5.1
0.1
0.1
0.1
0
0.1
0
0
5.1
5.1
1.5
1.4
1.6
1.4
2.0
1.7
1.1
1.5
2.1
5.0
0
5.0
0.1
0
5.0
0
0
0
5.1
5.1
1.2
1.7
1.4
1.8
1.7
1.1
2.1
2.1
5.1
5.1
5.1
5.1
5.0
0.1
0.1
0.1
5.1
5.1
5.1
5.1
5.1
0
0
0
0
5.1
5.1
5.1
0
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
5.1
3.0
3.0
3.0
1.0
5.1
5.1
5.1
4.4
4.0
1.5
0.1
2.1
5.0
5.1
5.1
0.1
3.7
0.1
0.1
5.0
5.0
4.9
0.1
0.1
5.0
0.1
5.0
5.1
5.1
5.0
0.2
5.0
4.8
3.9
0
5.0
0
4.8
0
5.1
5.0
5.0
5.0
0.1
0.1
0
0.1
0.1
3.0
3.0
3.0
1.5
0.1
0.1
5.1
5.0
3.1
0
0.1
0.1
0.1
5.0
0.1
4.7
0.1
0.1
0
4.9
2.4
0.1
5.4
0
5.0
5.0
4.9
0.1
0
5.0
5.0
0.1
5.0
5.1
0
3.1
3.6
0
0.1
5.0
5.0
0.1
0.1
5.0
5.0
2.3
2.5
3.0
2.8
2.6
2.4
3.4
0.1
0.6
5.0
0
1.4
1.7
1.8
1.7
2.1
1.1
2.1
0.3
2.6
2.6
2.5
2.3
3.1
2.6
0
0
3.1
0
0.1
5.0
2.0
1.4
1.6
1.4
5.0
5.0
5.0
5.0
0.1
0.1
0.1
0
0
5.0
5.0
5.0
5.0
5.1
6.1
5.0
0.1
0.1
2.1
1.5
1.1
1.7
5.0
0
3.0
0
3.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
3.0
3.0
1.4
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
3.0
2.8
2.6
2.6
2.2
2.8
0.1
0.1
0
3.1
1.5
2.5
0
0
0
0
0
0
0.9
0.1
0.1
0
0
3.0
0
0
2.2
3.0
0
0
2.2
3.2
0
2.2
2.2
0.1
2.1
0.1
0.1
0.1
3.0
0.1
0.1
0.1
0.1
3.0
3.0
0
0
0
5.1
3.0
3.2
3.2
1.7
0
0
0
0
2.2
2.2
0
2.2
0
0
2.3
2.2
2.2
3.0
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
2.2
3.0
3.0
3.0
3.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
3.0
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0
3.0
3.9
0
2.8
1.6
3.0
2.2
0
0
0
0
2.2
3.0
1.4
3.0
1.5
0
3.0
3.0
2.5
0.1
3.0
3.0
0
3.0
0
0
0
0
0
0
0.1
0.1
0.1
0
1.9
0
0
0.1
0
0
0
0
0.1
0
0.1
5.1 5.1
0.5
0.5
0.3
0
0
0
0
0
1.1
0.5
1.5
0
0
0.1
0.1
00
8.6
5.9
5.0
5.1
5.1
5.1
4.4
9.3
3.9
0
4.4
3.7
3.9
0
0
0
0
0
0
0
0
11.2
11.2
11.2
0
0.1
-11.9
11.2
11.2
11.2
0
0.1
-11.9
11.2
11.2
11.2
0
0.1
-11.9
11.2
11.2
11.2
0
0.1
-11.9
11.2
11.2
11.2
0
0.1
-11.9
11.2
0.1
7.2
0
0.8
7.8
0
5.1
4.4
5.1
5.1
5.1
5.1
5.1
5.0
5.1
5.1
0.1
5.1
5.1
5.1
0.1
5.1
1
2
B-2
B-1
C-1
PRESENCE L
SURROUND BACK L
CENTER
FRONT L
ANALOG IN
UR067100
10/50
UR237100
10/16
UR268100
100/50
UR268330
330/50
UR237100
10/16
UR268330
330/50
UR237100
10/16
UR268330
330/50
UR237100
10/16
UR268330
330/50
UR237100
10/16
UR268330
330/50
UR237100
10/16
UR268330
330/50
UR067100
10/50
UR268100
100/50
S22
IC502: YGV619
Advanced Video Display processor 6
IC503: MBM29LV320BE90T
4Mbit Flash Memory
IC504: W986432DH-7
SDRAM
IC505: MB3516APF-G-BND
RGB Encoder
IC511 - 516, 521 - 526:
SN74LV245APWR
Octal Bus Transceiver with 3-state Outputs
IC531: TC74HC4051AFEL
Analog Multiplexer/Demultiplexer
IC532 - 536: SN74LV573APWR
Octal Transparent D-Type Latches
with 3-state Outputs
IC551, 553: SN74AHC1G00DCKR
2-Input NAND Gate
IC552: SN74AHC1G86DCKR
Single 2-Input Exclusive-OR Gate
IC554: SN74AHC1G32DCKR
2-Input or Gate
IC556, 558: SN74LV32APWR
Quadruple 2-Input Positive-OR Gates
IC559, 616: SN74AHC1G08DCKR
IC560: SN74AHCT08PWR
Quad 2-Input And Gate
RY/BY
Buffer
State
Control
Command
Register
Erase Voltage
Generator
Input/Output
Buffers
Chip Enable
Output Enable
Logic
Address
Latch
X-Decoder
Y-Decoder Y-Gating
Cell Matrix
Timer for
Program/Erase
Program Voltage
Generator
Low Vcc Detector
VCC
RY/BY
VSS
WE
CE
OE
STB
STB
DQ15 to DQ0
BYTE
A-1
A20 to A0
RESET
WP/ACC
Data Latch
CLK
CLOCK
BUFFER
CONTROL
SIGNAL
MONITOR
MODE
REGISTER
DATA CONTROL
CIRCUIT
DQ
BUFFER
DQ0
|
DQ31
DQM0~3
COMMAND
DECODER
ADDRESS
BUFFER
REFRESH
COUNTER
COLUMN
COUNTER
CKE
CS
RAS
CAS
WE
A10/AP
A2
A22
COLUMN DECODER
ROW DECODER
SENSE AMPLIFIER
CELL ARRAY
BANK #0
COLUMN DECODER
ROW DECODER
SENSE AMPLIFIER
CELL ARRAY
BANK #0
COLUMN DECODER
ROW DECODER
SENSE AMPLIFIER
CELL ARRAY
BANK #0
COLUMN DECODER
ROW DECODER
SENSE AMPLIFIER
CELL ARRAY
BANK #0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
86
85
84
83
82
81
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
VCC
DQ0
VccQ
DQ1
DQ2
GND
DQ3
DQ4
VccQ
DQ5
DQ6
GND
DQ7
NC
VCC
DQM0
WE
CAS
RAS
CS
NC
A22
A13
A12
A2
A3
A4
DQM2
Vcc
NC
DQ10
GND
DQ17
DQ18
VccQ
DQ19
DQ20
GND
DQ21
DQ22
VccQ
DQ23
Vcc
GND
DQ15
GND
DQ14
DQ13
VccQ
DQ12
DQ11
GND
DQ10
DQ9
VccQ
DQ8
NC
GND
DQM1
NC
NC
CLK
CKE
A11
A10
A9
A8
A7
A6
A5
DQM3
GND
NC
DQ31
VccQ
DQ30
DQ29
GND
DQ28
DQ27
VccQ
DQ26
DQ25
GND
DQ24
GND
24 23 22 21 20 19 18 17 16 15 14 13
121110987654321
GND2 R-OUT
R-output
buffer
75 Ω drive
G-output
buffer
75 Ω drive
B-output
buffer
75 Ω drive
VIDEO
output buffer
75 Ω drive
Y-output
buffer
75 Ω drive
CROMA
output buffer
75 Ω drive
Y/C
MIX
G-OUT B-OUT VIDEO-OUT Vcc2 N.C. N.C. N.C.
Vcc1CSYNC-INNTSC/PAL-IN N.C.N.C.B-INGND1
Clamp Clamp
CSYNC
Clamp
R-IN N.C.
Y
M
a
t
r
i
x
R-Y
B-Y
N.C.fsc-ING-IN
Y-TRAP Y-OUT CROMA-OUT
buffer
CSYNC CSYNC
LPF
LPF
LPF
Phase
generation
Burst generation
& NTSC/PAL
selection
B-Y
modulation
R-Y
modulation
1
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
Vcc
OE
B1
B2
B3
B4
B5
B6
B7
B8
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
16
VCC
6
INHIBIT
11
3
9
A
C
B
8
GND
7
VEE
13
0
14
1
15
2
12
3
1
4
5
5
LEVEL
CONVERTER
10
BINARY TO 1-OF-8
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
2
6
4
7
SW
SW
COM
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
"ON" CHANNNEL
0
1
2
3
4
5
6
7
NONE
C
0
0
0
0
1
1
1
1
X
B
0
0
1
1
0
0
1
1
X
A
0
1
0
1
0
1
0
1
X
Y4
B2
GND 3
Vcc5A1
Y4
B2
GND 3
Vcc5A1
Y4
B2
GND 3
Vcc5A1
4B13
4A12
4Y11
3B10
3A9
3Y8
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
Vcc141A 1
4B13
4A12
4Y11
3B10
3A9
3Y8
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
Vcc141A 1
OE
1D
2D
3D
4D
5D
6D
7D
8D
GND
V
CC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
LE
1
2
3
4
5
6
7
8
9
10
1
OE
LE
C1
1D
1D
11
1Q
To Seven Other Channels
19
2
20
19
18
17
16
15
14
13
12
11
IC557: SN74LV00APWR
Quadruple 2-Input Positive-NAND Gates
4B13
4A12
4Y11
3B10
3A9
3Y8
1B 2
1Y 3
2A 4
2B 5
2Y 6
GND 7
Vcc141A 1
IC571: RH5RE58AA-T1-FA
IC572: RH5RE39AA-T1-FA
Voltage Regulator
IC573: SN74AHCT126PW
Quadruple Bus Buffer Gates with 3-state Outputs
1A
1Y
2Y
VCC
6A
1
2
3
4
11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7
4Y8
9
10
GND
VIN VOUT
GND
Vref
23
1
CPU
INTERFACE
D31-0
A23-2
CSREG
CSMEM
DREQ
RD
A1/WR3
WR2-0
WAIT
READY
INT
RESET
SYCKIN
SDQ31-0
SA12-0
SBA1-0
SCS
RAS
CAS
WE
DQM3-0
SDCLK
AT1-0
GCKOUT
DRO[5:0]
DGO[5:0]
DBO[5:0]
R, G, B
SYCKOUT
FSC
CSYNC
HSYNC
HSIN
VSIN
DCKIN
DCKOUT
GCKIN
DRI[5:0]
DGI[5:0]
DBI[5:0]
SDRAM
INTERFACE
DAC
DRAWING
PROCESSOR
UNIT
VIDEO
CAPTURE
CONTROLLER
PIXEL
DATA
CONTROLLER
CRT
CONTROLLER
POWER ON
(connect the power cable)
1 +5M
2 /RES
POWER OFF
(disconnetct the power cable)
1 +5M
2 /RES
1 +5M
2 /RES
POWER ON
(connect the power cable)
POWER ON
(connect the power cable)
POINT B-2 Pin 239 of IC502
POINT B-1 Pin 20 of IC501
POINT C-1 1/Pin 7, 2/Pin8 of CB505
RGB ENCODER
16 bit µ-COM MAIN CPU
O
V
KEY0
KEY1
Key Input (A-D) Pull-Up Resistance 10 k-ohms
U, C, A models
0
~ 0.27
PRESET/TUNING
<
–
+ 1.2k
~ 0.75
PRESET/TUNING
>
SPEAKERS
A
+ 1.2k
~ 1.22
PRESET/TUNING
EDIT
SPEAKERS
B
+ 1.8k
~ 1.76
FM/AM
INPUT MODE
+ 2.7k
~ 2.28
MEMORY
A/B/C/D/E
+ 3.3k
~ 2.76
TUNING
MODE
PURE
DIRECT
+ 4.7k
~ 3.24
–
TONE
CONTROL
+ 8.2k
~ 3.76
–
STRAIGHT
EFFECT
+ 18.0k
~ 4.26
ZONE ON/OFF
MAIN
–
+ 47.0k
~ 4.75
ZONE ON/OFF
ZONE2
–
O
V
KEY0
KEY1
R, T, K, L, J models
0
~ 0.27
PRESET/TUNING
<
–
+ 1.2k
~ 0.75
PRESET/TUNING
>
SPEAKERS
A
+ 1.2k
~ 1.22
PRESET/TUNING
EDIT
SPEAKERS
B
+ 1.8k
~ 1.76
FM/AM
INPUT MODE
+ 2.7k
~ 2.28
MEMORY
A/B/C/D/E
+ 3.3k
~ 2.76
TUNING
MODE
PURE
DIRECT
+ 4.7k
~ 3.24
–
TONE
CONTROL
+ 8.2k
~ 3.76
–
STRAIGHT
EFFECT
+ 18.0k
~ 4.26
–
–
+ 47.0k
~ 4.75
–
–
O
V
KEY0
KEY1
B, G models
0
~ 0.27
PRESET/TUNING
<
–
+ 1.2k
~ 0.75
PRESET/TUNING
>
SPEAKERS
A
+ 1.2k
~ 1.22
PRESET/TUNING
EDIT
SPEAKERS
B
+ 1.8k
~ 1.76
FM/AM
INPUT MODE
+ 2.7k
~ 2.28
MEMORY
A/B/C/D/E
+ 3.3k
~ 2.76
TUNING
MODE
PURE
DIRECT
+ 4.7k
~ 3.24
RDS
MODE
TONE
CONTROL
+ 8.2k
~ 3.76
EON
STRAIGHT
EFFECT
+ 18.0k
~ 4.26
PTY
MODE
–
+ 47.0k
~ 4.75
PTY
START
–
Page 75
to OPERATION (5) – C-M_CNCT –
CB553_27Pin
H8Page 73
to FUNCTION (2) – FUNCSUB –
CB507_19Pin
E3Page 74
to FUNCTION (3) – C-F_CNCT –
CB532_14Pin
C7Page 79
from INPUT – VINPUT –
W701_5Pin
C1
Page 71
to DSP_CB503_23Pin
F1
Page 75
to OPERATION (1) – FL – CB904_24Pin
G2Page 75
to OPERATION (2) – VOL –
CB903_15Pin
D9Page 75
to OPERATION (3) – V-AUX –
CB908_13Pin
I6Page 75
from OPERATION (3) – V-AUX –
CB907_7Pin
I3
Page 75
to OPERATION (3)
– V-AUX –
CB906_3Pin
I3
Page 78
from INPUT
– FINPUT –
W302_6Pin
C1Page 73
from FUNCTION (1)
– FPREOUT –
W503_3Pin
F3
Page 72
to DSP_CB505_19Pin
B1
O : USED / APPLICABLE
X : NOT USED
Page 74
from FUNCTION (3) – C-F_CNCT –
CB539_19Pin
I3Page 80
from POWER (3)_W124_9Pin
G8
Page 77
from POWER (5) – SUBTRA –
W1_8Pin
G8 Page 74
to FUNCTION (3) – C-F_CNCT –
CB538_13Pin
I2
To Next Page
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