KRF-V7771D/V8881D/VR-2080/2090
11
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Connect
Description
1
VOL_STB
O
PD
VOLUME IC CE (TC9412AP/TC9413AP)
2
VOL_CLK
O
PD
VOLUME IC CLOCK (TC9412AP/TC9413AP)
TONE IC CLOCK (TC9184AP)
3
VOL_DATA
O
PD
VOLUME IC DATA (TC9412AP/TC9413AP)
TONE IC DATA (TC9184AP)
4
SEL_STB1
O
PD
ANALOG SW. STROBE (NJU731x)
5
SEL_STB2
O
PD
ANALOG SW. STROBE (NJU7311-NJU7313)
6
VIDEO_STB
O
PD
VIDEO IC STROBE (NJU3713)
7
SEL_CLK
O
PD
ANALOG SW. CLOCK (NJU7311-NJU7313)
VIDEO IC CLOCK (NJU3713D)
8
SEL_DATA
O
PD
ANALOG SW. DATA (NJU7311-NJU7313)
VIDEO IC DATA (NJU3713D)
9
–
–
PD
NO USED
10, 11
X2, 1
–
–
MAIN CLOCK 4.19MHz (CERAMICS)
12
Vdd
–
+5V
+5V
13, 14
XT2, 1
–
OPEN
NO USED
15
RESET
I
VDD
uCOM RESET
16
REMOCON_IN1
I
–
FRONT PANEL REMOCON
17
REMOCON_IN2
I
–
EXTERNAL REMOCON
18
RDS_DATA
I
PD
RDS DATA (SAA6579)
19
RDS_CLK
I
PD
RDS CLOCK (SAA6579)
20, 21
NC
I
PD
NO USED
22
CE
I
–
BACK UP CE
23
AVdd
–
VDD
+5V
24
AVrefo
I
VDD
A/D POWER SUPPLY
25
RDS_SLEVEL
I
PD
RDS SLEVEL (SAA6579)
26
T_MUTE
O
PD
TUNER MUTE
27
PLL_CLK
O
PD
PLL IC CLOCK (LC73131)
28
PLL_DATA
O
PD
PLL IC DATA (LC72131)
29
PLL_CE
O
PD
PLL IC CE (LC72131)
30
SD
I
PU
SD INPUT
31
STEREO
I
PU
STEREO INPUT
32
PLL_DO
I
PD
PLL IC LC72131 DO (LC72131)
–
VSS
GND
O
PD
SUB uCOM RESET (uPD78058GC-A74)
I
PU
PERFECT MACRO VIDEO POWER DETECT
I
VDD
+5V
I
PD
MEGA CHANGER CD DATA RECEIVE
POWER LINE REMOCON CODE RECEIVE
O
PD
MEGA CHANGER CD DATA TRANSMIT
POWER LINE REMOCON CODE TRANSMIT
O
PD
PERFECT MACRO VIDEO SELECTOR POWER SUPPLY SW. Tr
–
GND
GND
I
PD
uCOM-uCOM COMMUNICATION SLAVE DATA
(uPD78058GC-A74)
42
MDT
O
PD
uCOM-uCOM COMMUNICATION MASTER DATA
(uPD78058GC-A74)
43
MCK
O
PD
uCOM-uCOM COMMUNICATION MASTER CLOCK
(uPD78058GC-A74)
44
MREQ
O
PD
uCOM-uCOM COMMUNICATION MASTER REQUEST
(uPD78058GC-A74)
4-2 Pin description
KRF-V7771D(K)
COVER(
98.12.8
18:58
y [ W 14
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