Yamaha MCR-330, Service Manual

Page: 52 / 70

★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
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.
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
CRX-330/NS-BP100
52
MAIN 2/3
IC217
CB211
IC21
4
CB212
CB213
IC21
8
CB21
4
CB21
5
IC219
IC220
IC221
CB216
CD IN
CD IN
1.8
1.8
3.4
1.8
1.8
1.7 1.8
1.8
1.6
1.8
3.5
3.5
3.5
0
0 0
0 0
0 0 0 0
0
3.4
3.4
3.4 3.4 3.4
1.6
3.5
3.5
3.3 3.2
3.4
1.8
1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8 1.8
3.5 3.5
3.5
0
0
0 0 0
0
0
1.8
3.5
3.5
1.8
1.2 3.4 3.4 1.6 1.7 1.7 1.7 1.7 3.3 3.3 3.3
1.6
1.6
3.5
3.5
0
0
1.9
0.2
3.4
1.8
1.8
1.8
1.6
1.8
1.8
1.8
0.3
1.9
1.8
1.9
1.8
1.8
1.8
1.5
0.3
0.2
3.5
0
1.8
1.2
1.2
1.3
1.3
3.4
0.2
1.9
2.3
2.0
0
0
1.8
1.8
1.8
1.8
1.8
1.7
1.7
3.4
3.5 3.4
3.4 3.3
0
5.2
0
7.2
0.3
0
3.4
5.2
5.2
0
0
3.5
3.5
1.8
3.5
3.5
1.3
0
0
0
0
0.3
3.4
15.3
7.2
3.5
0
0
1.9
0
3.3
0 0
0
0
1.2 0.6
0.6 0.6 1.3
1.9
1.9
15.3
5.2 5.2 5.2 9.8
15.3
15.3 15.3 11.9 7.2 7.2 7.2
15.3 0
5.2
15.3
2.3
2.0
3.1
1.8
1.8
1.8
1.8
1.8
1.8
1.8
3.3
3.3
3.1
3.5
7.2
7.2
0
1.6
3.2
3.4
3.4
3.4
3.4
3.4
3.3
3.3
3.3
0.6
0.6
0
0
0
0
3.4
3.4
3.4
0
0
0
0
0
0
0
3.4
2.1
1.9
1.6
1.6
1.6
1.6
0
1.7 1.7 1.7 3.3 3.3 3.3
3.3
3.5
3.5
3.5
1.8
1.8 1.8
1.8 1.8
1.8 1.8
0 0
1.6
0 0
3.5
3.5 3.5
3.5
1.7 1.8 1.8
1.8
1.8
1.8 1.8
1.8
1.8
0
0 0 1.9 2.1 1.2 3.4 3.4 3.3
1.6 1.6
1.6
POINT C XL203 (Pin 109 of IC217)
POINT D XL204 (Pin 11 of IC218)
C
D
IC221 : BD9302FP-E2
2.5 MHz 2 A power switch 2 ch step-down switching regulator
1 PGND1
2 COMP1
0.6V
ERR
PWN
VREF
slope
slope
OSC
OCP
5V
OCP
Current
Sense
Current
Sense
UXLO
TSD
Set
SDWN
DRV1
SDWN
Reset
DRV2
DRV2
SDWN
DRV1
SDWN
Set
Reset
Internal
Bisa
+
-
0.6V
ERR
PWN
+
-
+ -
+ -
3 FB1
4 RT
5 N.C.
6 SS1/SD
7 VCC
8 SS2/SD
9 N.C.
10 FB2
11 COMP2
12 GND
13 PGND2
25 SW1L
24 SW1
23 SW1
22 BOOT1
21 PVCC
19 PVCC
18 PVCC
17 BOOT2
16 SW2
15 SW2
14 SW2L
20 PVCC
IC218 : MN103SFB5KYAA
Microprocessor
TIMER INTERRUPT
CONTROL
WDTx1
35 Factor
INTERFACE
MEMORY
8 KB
256 KByte
8 KByte
8-bit x 4
16-bit x 2
DMA 4 CH
USB
ROM
32 bit
MICRO-
PROCESSOR
CORE
FLASH
MEMORY
DATA
RAM
SIF
x 2
I2C
x 1
34 pcs (3 V type)
8 pcs (5 V type)
CLOCK &
SYSTEM control
I/O port
VDD
A3
A2
A1
A0
A10/AP
BA
CS
RAS
CAS
WE
LDQM
DQ7
VSSQ
DQ2
VDDQ
DQ4
VSSQ
DQ6
VDDQ
DQ1
DQ5
DQ3
DQ0
VDD
VSS
A4
A5
A6
A7
A8
A9
N.C
CKE
CLK
UDQM
N.C/RFU
DQ8
VSSQ
DQ13
VDDQ
DQ11
VSSQ
DQ9
VDDQ
DQ14
DQ10
DQ12
DQ15
VSS
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Bank Select Data Input Register
Column Decoder
Latency & Burst Length
Programming Register
Timing Register
LWCBR
LDQM
DQi
LDQM
LWE
LCAS
LWE LCBR LRAS
CLK CKE CS RAS CAS WE L(U)DQM
LCKE
LCBR LRA
S
ADD
CLK
512K x 16
512K x 16
A
ddr
ess R
egist
er
R
o
w Decoder
C
ol.
Buf
fer
Sense AMP
Output Buf
fer
I/O C
ontr
ol
R
o
w Buf
fer
R
efr
esh C
ount
er
IC219 : M12L16161A-7TG
512 K x 16-bit x 2 banks synchronous DRAM
IC214 : AN41010A-VF
5-ch. linear driver IC for CD and DVD player
Direction
Detection
· Standby
· Band-gap
· SVCC
Reset Circuit
20 kΩ
SGnd
STBY
OPO
OPI-
OPI+
SVCC IN5 IN4 IN2 IN1 PC5 PC4 PC1-2
VREF
PGND PVCC
VO1- VO1+
VO2- VO2+
VO3- VO3+
VO4- VO4+
VO5- VO5+
[Focus] [Tracking] [Loading] [Sled] [Spindle]
IN3R
MC1 MC2 MODE
“L”
[PC1-2,PC4,PC5]
“L” Forward
“L” “Hi-Z” Brake
“H” “H” Brake
“L” “H” Reverse
“H”
“L”: mute
“H”: active
“L” Stand-by
MC2 MC1
Note) For use inputting 3-state
MC1 is fixed to L”
– +
– + – +
– +
M
Direction
Detection
20 kΩ
– +
– + – +
M
Direction
Detection
18 kΩ
– +
– + – +
M
Direction
Detection
20 kΩ
– +
– + – +
Direction
Detection
PVCC/2
Logic
20 kΩ
– +
– + – +
20
15 18 9 13 8 11 17 19 12 10 16 14
4 28 27 2 7
FIN
26 6 27 5 3 21
1
24
23
22
[STBY]
“L”: All mute
“H”: All active
V IN 4
EN 1
2
5
GATE
CONTROL
UVLO
THERMAL
SHUTDOWN
CURRENT
LIMIT
FLAG
DELAY
V OUT
3 FLG
GND
IC220 : R5523N001A-TR-F
High side switch IC
CD CONTROLLER
USB CURRENT
LIMIT IC
USB CONTROLLER
MAIN (1)
to Loader mechanism unit
to Loader mechanism unit
to Loader mechanism unit
to POWER (1)_W1
Page 54 N3