U-Com Blockdiagram - Pioneer VSX-D412-K Service Manual

1

7.1.2 U-COM BLOCKDIAGRAM

A
IC 5001: Expand IC
BU4094BCF
2: Serial In
K
IC 301: Expand IC
BU4094BCF
2: Serial In
10: Q
A
IC101: Function Selector
B
TC9273F-007
15: DATA
14: CLK
A
IC103: EVOL (6-CH)
M62446FP
40: DATA
41: CLK
39: LATCH
A
C
IC9601:
NJU7313AM
17: DATA
16: CLK
A
IC102: Function Selector
NJU7312AM
17: DATA
16: CLK
D
A
PLL DO
PLL CS
TUNED
STEREO
TMUTE
E
F
64
1
2
3: CLK SYS CK SYS CLK
1: ST EXP ST SYS DATA
15: OE EXP OE TUNED
STEREO
PLL CE
PLL DO
SYS DT
T MUTE
3: CLK SYS CK
1: ST EXP ST
15: OE EXP OE
SYS DT
SYS CK
16: ST 9273STST
SYS DT
SYS CK
EVRST
SYS DT
SYS CK
14: ST SYS ST
SYS DT
SYS CK
14: ST SYS ST
IC401:
System Microprocessor
PDG268B
O
2
3
TUNER MODULE
IC 9504
SYS CLK
SYS DATA
TUNED
STEREO
PLL CE
PLL DO
T MUTE
X
IC9101: CODEC SDI1~3
AK4586VQ SDTO
BICK
A LRCK
96k
CDTO
CRST
CCS
CCK
CDT
CSDO
CRES
RDS DATA
RDS CLK
VSX-D412-K
3
ROM FOR
DD/DTS IC9502: FLIP/FLOP
PD8097A IC9503: FLIP/FLOP
(MR27V802D) TC74VHC574F
A A
OE CLK
CE OE
SDI1~4
SDTO
BICK IC 9501: Main DSP
LRCK CS493292
A
5V/3V Level Shifter
IC9505: 5V -->3V TC74LVX244FT
IC9506: 3V-->5V TC74VHCT244AFT
4
A
CLK
A
4