Oelb Assy - Pioneer MEP-7000 Service Manual

1

10.27 OELB ASSY

8.5V REG
A
V+14D
190
CCX1037-A
TH2300
R2314
68k
B
V+14D
NDGND 13
V+14D 12
C
NDGND 11
V+5D 10
OEL_MCLK
9
OEL_CS#
8
NDGND 7
OEL_RST#
6
OEL_CMD#
5
NDGND 4
OEL_CLK
3
OEL_DATA 2
NDGND 1
D
CN2300
VKN1939-A
E
NDGND
NOTES
NM means STANDBY
RESISTOR
RS1/16S***J
D
RS1/16SE****D
CAPACITOR
CKSRYB & CKSQYB
YF
CKSQYF
F
CH
CCSRCH
CIRCUIT GND
S
NDGND
188
1
2
2SC4617(QRS) 2SC2411K(QR)
Q2300 Q2301
191
R2315 R2316
NM NM
NDGND
NDGND
V+5D
NDGND
144
1.25MHz
133
145
146
R2324
1 N.C. Dummy
2 VSSK GND(Cathode Driver)
3 IREF The refference current
4 CVDL Internal logic voltage
5 Dummy
N.C.
6 VKH The power supply for cathode driver
7 VAH The power supply for anode driver
8 VAL The low voltage for anode driver
9 VSSA GND(Analog)
10 X1 Clock inputs
11 VSSD GND(logic)
12 XO For Ceramics osillation mode , outputs
2
3
V+8R5D
D
D
R2303 R2306
22k 30k
C2305
0.1u
R2308
22
V+5D
R2310
0
R2323 R2322
0 0 0
13 REGS
14 IFSEL
15 N.C.
16 VDD
17 XCS
18 XREF
19 XCMD
20 SCL
21 SI_RX
22 SO_TX
23 VSSD
24 N.C.
MEP-7000
3
4
S
OELB ASSY (DWX2714)
V+8R5D V+14D
NM
IC2302
1
2
3
C2313
4
0.22u
5
YF
6
YF 7
C2306
8
0.1u
9
10
11
12
13
14
15
16
17
OEL_CS#
18
OEL_RST#
19
OEL_CMD#
20
OEL_CLK
21
OEL_DATA
22
23
24
NDGND
Intemal logic voltage is s
Synchronous / asynchronous interface is selected
Dummy
The power supply for logic
The data enable (chip select) sygnal
The reset sygnal
The command select sygnal
Clock for serial interface
Receive data for serial interface
Transmit data for serial interface
GND(logic)
Dummy
4
Manual soldering
(Flying Reed Contact)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
S