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6-10. SCHEMATIC DIAGRAM – MAIN Board (2/2) – •
(2/2)
EP550
C856
(CHASSIS)
0.1
A1
A2
A3
A4
A5
A6
A7
A8
A9
(Page 44)
R551
R581
220
C556
0.1
A10
A11
A12
L551
0.1
•
See page 38 for Waveforms.
See page 48 for IC Block Diagrams.
D/A CONVERTER
IC505
CXD9627
C554
0
MCLK
R501
220
BCK
BICK
R503
220
DADT
SDTI
R500
220
LRCK
LRCK
ADA.RESET
PDN
R506
100
LATCH
C519
1000p
CSN
R505
100
SCLK
CCLK
R504
100
SWDT
CDTI
C517
C516
C515
100p
100p
100p
C551
C555
R550
0.1
0.1
1M
C550
IC550
100
TC7WHU04FU
10V
BUFFER
L550
R420
0
C432
0.1
+3.3V REGULATOR
IC402
BA033FP-E2
O
I
G
D422
RB495D-T146
R421
220
C416
C415
220
0.1
10V
R162
R164
10k
10k
C161
220p
C854
C852
R161
R163
0
0
10k
10k
C165
100p
C523
C507
100
0.1
10V
C851
C524
0
DZFL
0.1
DZFR
L503
C265
R265
VDD
100p
10k
VSS
R261
R263
AOUTL+
10k
10k
AOUTL-
C261
220p
AOUTR+
R266
10k
AOUTR-
R262
R264
10k
10k
C266
100p
L504
0
-5V REGULATOR
+5V REGULATOR
IC451
IC450
XC6351A120MR
BA05T
I
O
G
C450
C461
C462
220
0.1
0.1
10V
D301
DAP202UT106
L400
L22 H
Q400
HAT1020R-E
R401
SWITCHING
0.047
S
C413
C412
C414
D402
1000
47
0.1
SFPB-52V
10V
6.3V
45
45
C166
100p
R166
IC501(2/2)
10k
NJM2115V(TE2)
R140
R142
R176
6
0
0
680
7
5
8
R165
10k
R170
10k
C456
C451
220
0.1
10V
2SD1938(F)
MIX AMP
C452
0.1
Q170,270
IC501(1/2)
MUTING
NJM2115V(TE2)
3
1
2
4
R456
R270
4.7k
10k
2SD1938(F)
R240
R242
0
0
R455
R276
10k
680
R450
C459
100k
1
C101
1
Q100
UN5111-TX
MUTING
CONTROL
Q451
SWITCH
UN5211-TX
HEADPHONE
C100
MUTING
C460
1
47
10V
C458
220
10V
R471
2.2k
VOLTAGE
R470
DETECT
2.2k
IC401
XC61FN3012MR
D470
MA8033-L-TX
VOUT
VIN
VSS
IC400
MAX1626ESA
C408
C409
0.1
0.1
+V
REF
CS
SHDN
EXT
3
5
C410
GND
OUT
15
16V
C407
R404
C406
SWITCHING
6800
10k
0.1
16V
REGULATOR
MDS-NT1
C176
22
R178
C177
25V
L178
330
220p
CN200
ANALOG
R278
330
OUT
L278
C277
220p
Q170
-T(TX)
(CHASSIS)
RV301
20k/20k
Q270
PHONE
-T(TX)
LEVEL
-1
-2
C276
C280
22
1
25V
50V
C281
R280
220 10V
L280
2.2
C282
220p
R281
1k
J180
PHONES
HEADPHONE AMP
IC503
BH3541F-E2
R181
1k
C182
220p
C181
220
R180
10V
L180
2.2
C180
1 50V
THP400
T400
J400
C401
R403
0.1
DC
IN
9V
4.7k
C402
0.1
(CHASSIS)
C404
0.1
(CHASSIS)
CN420
2P
SHORT
SOCKET
BT420
LITHIUM
BATTERY
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