Yamaha CRX-040 Service Manual page 69

A B
MAIN 3/5
1
MAIN (1)
2
To Loader mechanism unit
0
0
0
0
0.2
3
2.0 <1.9>
0
0
0
1.8
5.1
1.6
<1.7>
0
1.8
1.7
1.7
<2.0>
5.0 <4.7>
1.7
4 1.7
3.3
3.3 <3.4>
3.3 <3.4>
3.3 <3.4>
CB501
5
6
CB502
3.2
3.5 <3.6>
3.3
To Loader mechanism unit 0
7
<3.5>
3.3
3.2 <3.3>
W501
0.6
0.6
3.3
To Loader mechanism unit
0
8
IC501: AN41010A-VF
5-ch. linear driver IC for CD and DVD player
[Sled] [Spindle] [Loading] [Tracking] [Focus]
M M M
VO5+ VO5- VO3+ VO3-
VO1+
VO4+ VO4-
VO2+ VO2-
9 19 18 17 16 13 12 11 10 9
OPI+
22
OPI-
23
Direction Direction Direction Direction Direction
Detection Detection Detection Detection Detection
OPO
24
· Standby
STBY · Band-gap
1
· SVCC
Logic
Reset Circuit
10
FIN
21 27 2 26 3 7 6 5 27 28
[STBY]
"L": All mute
20 kΩ 20 kΩ 18 kΩ 20 kΩ
"H": All active
SGnd SVCC IN5 PC5 IN4 PC4 IN3R MC2 MC1 IN2 IN1
MC1 MC2 MODE
"L" "L" Forward
"L" "Hi-Z" Brake
"L" "H" Reverse
"H" "L" Stand-by Note) For use inputting 3-state
"H" "H" Brake
Downloaded from www.dlmanuals.com
C D E
IC502
0
0
<1.7> 1.6
<0.2>
1.7
<3.3>
0
<1.6> 1.7
1.5
1.7
1.8
1.8
1.7
1.7
1.7
1.7
0.2
2.4
<2.4> 1.8
<1.6> 1.1
<0.9>
1.8
<1.7>
3.2
1.2
1.3
1.3
1.7
<3.2>
3.3
2.4
2.0
1.5
<1.9>
0.5
<0>
DRIVER
3.3
1.7
3.3 1.6 <1.7>
3.3 1.6 <1.7>
1.6
3.3
<3.3> 1.6
0 <1.7>
0 1.6 <1.7>
0
1.6 <1.7>
0 0
7.2 OUT L
<3.4> 3.3 <7.3>
1.6
<3.4> 3.3 <1.7>
3.2
<3.4> 3.3 <3.3>
3.3
3.3 <3.5>
3.2
0.6
3.5 <3.6>
0.6
7.2
<7.3>
0
PVCC PGND
VO1- IC504: MN103SFB5KYAA
8 15 14
Microprocessor
INTERFACE ROM
PVCC/2
MEMORY 256 KByte 32 bit
8 KB
FLASH MICRO-
DMA 4 CH
MEMORY
PROCESSOR
USB CORE
DATA
SIF RAM
8 KByte
x 2
VREF
20 I2C
x 1
I/O port
INTERRUPT
34 pcs (3 V type) TIMER
8 pcs (5 V type) CONTROL
8-bit x 4
CLOCK and 16-bit x 2 WDTx1
35 Factor
4
SYSTEM control
20 kΩ
PC1-2
[PC1-2,PC4,PC5]
"L": mute
"H": active
MC1 is fixed to L"
F G H
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
CD CONTROLLER
1.6
1.7
IC503
3.3
3.3
1.6
1.6
<3.3>
0
1.7 <1.9>
1.7
1.7
<1.8>
1.7
<3.2>
<1.1>
0
<1.3>
3.3
1.7
0.9
E 0
1.5
0
0
3.4 3.3
(Writing port)
CD IN
IC505: M12L16161A-7TG
512 K x 16-bit x 2 banks synchronous DRAM
Bank Select
Data Input Register
512K x 16
PD6/IRQ3 1 48 P33/SDA3
USBNOC/PC0 2 47 P34 CLK 512K x 16
USBNPP/PC1 3 46 P35/SCL3
USBD- 4 45 P77
AVSS 5 44 P40 ADD
USBD+ 6 43 P87
AVDD 7 42 VDD18 Column Decoder
PE0/IRQ0 8 41 P86
VDD33 9 40 VSS
VDD18/VOUT 10 39 P85 Latency and Burst Length
OSCI 11 38 VDD33 LCKE
OSCO 12 37 P84/TM11IOB
VSS 13 36 P83/TM11IOA
Programming Register
NRST 14 35 P82/TM11IOB
LRAS LCBR LWE LDQM
MMOD0 15 34 P81/TM11IOA LCAS
LWCBR
MMOD1 16 33 P75
Timing Register
CLK CKE CS RAS CAS WE L(U)DQM
I J K
IC505
<3.3>
<3.3>
<3.3>
3.3
3.3
0
0
3.3
F
0
3.3
USB CONTROLLER
3.3 0
1.8
0 IC504 3.3
1.8 <3.3>
0
0
0
0.3
0.3
<3.3>
< > the voltage is CRX-140.
< >内の電圧はCRX-140です。
CRX-040
POINT E XL501 (Pin 109 of IC503) POINT F XL502 (Pin 12 of IC504)
LWE
V DD 1 50 V SS
LDQM DQ0 2 49 DQ15
DQ1 3 48 DQ14
V SSQ 4 47 V SSQ
DQ2 5 46 DQ13
DQ3 6 45 DQ12
DQi
V DDQ 7 44 V DDQ
DQ4 8 43 DQ11
DQ5 9 42 DQ10
V SSQ 10 41 V SSQ
DQ6 11 40 DQ9
DQ7 12 39 DQ8
V DDQ 13 38 V DDQ
LDQM 14 37 N.C/RFU
WE 15 36 UDQM
CAS 16 35 CLK
RAS 17 34 CKE
CS 18 33 N.C
BA 19 32 A9
A10/AP 20 31 A8
A0 21 30 A7
★ All voltages are measured with a 10MΩ/V DC electronic voltmeter.
A1 22 29 A6
★ Components having special characteristics are marked ⚠ and must be replaced
A2 23 28 A5
A3 24 27 A4
with parts having specifications equal to those originally installed.
V DD 25 26 V SS
★ Schematic diagram is subject to change without notice.
L M N
CRX-040/CRX-140/NS-BP80
IC BLOCK DIGAGRAM MAIN 2/5
IC268: M24C02-RDW6TP
2 K-bit and 1 K-bit serial I2C bus EEPROM
V CC
3
E0-E2 SDA
E0 1 8 V CC
E1 2 7 WC
M24Cxx
SCL
E2 3 6 SCL
V SS 4 5 SDA
WC
V SS
IC269: R3112N251A-TR
Voltage regulator
V DD 2
1 V OUT
R D
Vref
GND
3
5
C
D
Pin No. Symbol Description
1 OUT Output Pin ("L" at Detect, "H" at Released)
2 V DD Input and power source for device itself
3 GND Ground Pin
4 NC No Connection
5 C D Pin for external capacitor for setting output delay
IC270: R1154H001C-T1-F
Voltage regulator
Thermal
Shutdown
1 V
V DD 5 OUT
4 ADJ
Vref
Short Current
Protection Limit
Circuit Circuit
CE 3 2 GND
Pin No. Symbol Description
1 V OUT Output Pin for Voltage Regulator
2 GND Ground
3 CE Chip Enable Pin (active at "H")
4 ADJ Adjustable Output Pin for Voltage Regulator
5 V DD Power Supply Pin
CRX-140
POINT E XL501 (Pin 109 of IC503) POINT F XL502 (Pin 12 of IC504)
● 電圧は、内部抵抗 10MΩの電圧計で測定したものです。
● ⚠印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、
パーツリストに記載されている部品を使用してください。
● 本回路図は標準回路図です。改良のため予告なく変更することがございます。
69