Kenwood VR-208 Service Manual page 9

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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