Block Diagram - Yamaha CD-S300 Service Manual

A B

■ BLOCK DIAGRAM

1
2
Loader Mechanism Unit
3
Spindle
4
LIMIT SW
M M
5
POWER and AUDIO
OPERATION (4) – (6), (8)
→
SCHEMATIC DIAGRAM
SW801
F801
AC IN
POWER ON/OFF
6
7
C D
Authentication
MFI341S2161
D+3.3V
Limit SW
A, B, C, D, E, F, PD
OPU
Focus
Tracking
LD, F+/F-, T+/T-
Feed
CLAMP UP/DOWN, OPEN/CLOSE
-B1 IC803
C817 A-5
IC802
T801
A+5
D805, 806, 809, 810
+B1 IC801
C816 D+5
D803, 804
+B2 Q804
C813 M+7
D802
Q801
FL -27V
FL AC+/-
Power Transformer
E F
V701 D702, 703, 751
POWER Indicator
CB752
FL-Display Pure Direct Indicator
USB connector
USB Indicator
D+/D-
USB+5
IC8 FL_CLK/FL_Data
IC6
APPLE
FL_CS/FL
Current Limiter
37,38
16-19
IC7 USB_/EN, USB_FLG
USB Interface
LC87F1HC8A
USB_TX, RES_USB
FILE Read/Write
iPod Authentication
USB_RX, USB_IN RES_DSP
6 7
XL1
XL2
DSP_CLK
16.9344
12MHz 73 72
DSP_CE
DSP_DI
IC2
CD-Controller
LC786922
DSP_DO
S_RD
Disc Control（Servo） 37,38
YR_RD
EFM Demodulation
YCD_MUTE
MP3/WMA Decode
Digital Audio Output（I2S/SPDIF)
69
OPEN/CLOSE
IC1
Actuator Driver
LA6565
SPDIF
M+7V
MCLK, BCK
LRCK, DATA
IC302
DAC Control (SPI)
Audio DAC
PCM1780
L ch R ch
IC602 IC601
3dB AMP 3dB AMP
/ LPF / LPF
Mute Control
Mute Circuit
Q806
Power Up/Down
Mute Control
(P_MUTE)
L ch R ch
ANALOG OUT
G H
Front section
SW701-708 U701
OPERATION (1) – (3)
Front Panel Keys REM
SCHEMATIC DIAGRAM
MAIN
SCHEMATIC DIAGRAM
70-73 54-56,58-60
IC305
15
Microprocessor
R5F212CASNFP
D+3.3V
IC2/IC7 Control
FL/Indicator Control
IR/Key Detect
DAC Control
IC306
9
OPEN/CLOSE Control
Reset IC
iPod Operation (iAP)
BD5229G
64 3-5 7 10 12 1,2
IC304
EEPROM
XL301
10MHz LE24C023M
U301
OPTICAL
IC4
TC7SH08
PJ301
Switch
Q304
/ Buffer COAXIAL
Buffer
IC303
D+5V Liner Regulator
D+3.3V
IC301
B+2
DC/DC Converter
USB+5
I J
CD-S300
→
→
DIGITAL OUT
33