Kenwood KR-V8090 Service Manual page 8

1060VR/1070VR/KR-V8090/KR-V9090
No. Name
18 T MUTE
19 STEREO
20 SD
21 FL STB
22 FL CLK
23 FL DOUT
24 FL DIN
25 DSP CLK
26 DSP MIS0
27 DSP MIS1
28 –
29 S. LEVEL
30 DSP SS
31 DSP HREQ
32 SL16 / X58
33 S BUSY
34 S DATA
35 PROTECT
36 CE
37 –
38 RESET
39 EXTAL
40 XTAL
41 VSS
42 TX
43 TEX
44 VDD
45 VFDP
46 DSP RESET
47 VIDEO D
48 VIDEO C
49 VIDEO B
50 VIDEO A
51 LOUDNESS
52 -20dB ATT
53 TON STB
54 VOL STB
55 VOL/TON CLK
56 VOL/TON DAT
57 SEL STB2
58 SEL STB1
59 SEL CLK
60 SEL DATA
61 MUTE
62 RELAY POWER
63 RELAY TR
64 RELAY CS
65 RELAY B
66 RELAY A
67 DSP GPIO
68-80 NC
89 VDD
90-100 NC
8
CIRCUIT DESCRIPTION
I / O
O Tuner mute signal output
O Tuner stereo signal input
I Tuner sd signal input
O uPD16311 (FL driver) strobe signal output
O uPD16311 (FL driver) clock signal output
I uPD16311 (FL driver) data signal input
O uPD16311 (FL driver) data signal output
– 56004 (DSP) clock signal output
I 56004 (DSP) data signal input
O 56004 (DSP) data signal output
– A / D standard voltage (+5V)
I RDS signal level input
O 56004 (DSP) interface signal output
I 56004 (DSP) host request signal input
I Serial SL16 / XS8 switching input
I/O Serial busy signal input - output
I/O Serial data signal input - output
I Protection signal input
I Microprocessor AC off signal input
– Connects to VSS
I Reset signal input
– 8MHz oscillation elements (input)
– 8MHz oscillation elements (output)
– Microprocessor power supply (GND)
– –
– Connects to VSS
– Microprocessor power supply (+5V)
– Connects to VSS
O 56004 (DSP) reset signal output
O SN761200n (video sel) control signal D output
O SN761200n (video sel) control signal C output
O SN761200n (video sel) control signal B output
O SN761200n (video sel) control signal A output
O Loudness control signal output
O Volume -20dB ATT control signal output
O TC9184P (Tone) strobe signal output
O TC9184P(Volume) strobe signal output
O TC9412P/9184P (Volume/Tone) clock signal output
O TC9412P/9184P (Volume/Tone) data signal output
O NJU7311 (for Sel AC-3) strobe signal output
O NJU7313/7312/7311 (Sel) strobe signal output
O NJU7313/7312/7311 (Sel) clock signal output
O NJU7313/7312/7311 (Sel) data signal output
O Audio mute signal output
O Power relay ON/OFF output
O 2nd side voltage relay ON/OFF output
O Speaker C/S relay ON/OFF output
O Speaker B relay ON/OFF output
O Speaker A relay ON/OFF output
O
– 56004 (DSP) data forwarding control signal output
O Microprocessor power supply (+5V)
O –
Description