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Kenwood VR-208 Service Manual page 9

Av surround receiver
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Pin No.
Pin Name
61
FB.RLY
62
C.RLY
63
S.RLY
64
POWER.RLY
65
STANDBY.LED
66
DOL.DIG.LED
67
P.LEVEL.LED
68-70
71
PACL_CTL
72
AC3.IC
73
EMPHASIS
74-81
82-88
P9-15
89
90,91
P16,17
92-100
2. DSP YSS248 (X08 : IC1)
2-1 Pin description
Pin No.
Pin Name
1
2~7
TEST
8
9
10
11
12~18
TEST
19
20
21
22~29
TEST
30
31
32~39
OPORT
40
41
42~44
TEST
45~47
SDO2~0
48
SDOBCK
49
SDOWCK
50
51
52
AC3DATA
53
54
MUTE
55
KARAOKE
56
SURENC
57
2/0MODE
58,59
TEST
60
61
TEST
62
63~65
TEST
66
CIRCUIT DESCRIPTION
I/O
O
Front B speaker relay control. H=relay on.
O
Center speaker relay control. H=relay on.
O
Rear speaker relay control. H=relay on.
O
Power relay control. H=relay on.
O
Standby led control.L=led on.
O
Dolby digital led control.L=led on.
O
Peak level led control.L=led on.
None
O
No connect
O
Non oscillation of power pack ic at power off. L=stop oscillation.
O
YSS248/CS4226 initial clear port.
O
Tuner emphasis on/off. H=100k/10k,L=50k/9k.
P1-8
O
Display segments 1-8 & key returns 0-7.
O
Display segments 9-15.
Vdd
O
Microprocessor power supply(+5V)
O
Display segments 16,17
G1-9
O
Display grids 1-9.
I/O
Vdd
Power supply(+5V)
O
Test port.
XI
I
Crystal oscillation port.
XO
O
Crystal oscillation port.
Vss
GND
CPO
O
PLL output port.
I
Test port.
VIN
I
PLL input port.
Vref
I
PLL input port.
Vdd
Power supply(+5V)
I
Test port.
Vss
GND
Vdd
Power supply(+5V)
O
Register output ports.
Vss
GND
Vdd
Power supply(+5V)
I
Test port.
O
PCM output port.
I
Bit clock for SD output ports.
I
Word clock for SD output ports.
Vss
GND
Vdd
Power supply(+5V)
O
AC3 data detection port.
CRC
O
CRC error detection port.
O
Automatic mute detection port.
O
AC3 karaoke data detection port.
O
AC3 2/0 mode dolby surround encode input detection port.
O
AC3 2/0 mode input detection port.3.5
I
Test port.
Vss
GND
I
Test port.
/IC
I
Initial clear port.
I
Test port.
/CS
I
Microprocessor interface chip selector input port.
Published in Heiloo, Holland.
KRF-V7510D/V8010D/VR-208/209
Description
Descriptions
12/6/15
9

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