Kenwood DVR-8100 Service Manual page 7

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Pin No. Pin Name
15 SUPPLY PROTECT
16 4586 CDTO
17 AK4586 INT0
18 AK4586 INT1
19 AK4586 OVERLEVEL
20 AK4586 DZF1
21 DSP-INTREQ
22 SUB CPU CLK
23 SUB CPU DATA IN
24 SUB CPU DATA OUT
25 DSP 493xxCLK
26 DSP493xxDATA IN
27 DSP493xxDATA OUT
28 AD REF
29,30 KEY IN (1,2)
31 EEPROM DATA
32 TUNED
33 OPT_DET
34 MODEL_OPTION
35 PLL-DATA IN/ST CHK
36 STEP-OPTION
37 VSS
38 RST
TE
L 13942296513
39 XTAL-IN
40 XTAL-OUT
41 VSS
42 NC
43 GND
44 VDD
45 VFDP
46 BD3811_DATA
47 RELAY-F
48 BD3811_CLK
49 BD3811_MUTE
50 PLL-CE
51 PLL-CLK
52 PLL D OUT
53 AK4586CS
54 AK4586RST
55~57 VIDEO CTL(1~3)
58,59 VIDEO MUTE (1,2)
60 AK4586 MST/SLV
61 10dB ATT
62 A_MUTE
63 T_MUTE
64 DSP 493xxRST
65~67 DSP (A15~A17)
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68 STBY LED
69 RELAY-R
70 PACK CONTROL
.
71 RELAY POWER
72 SUB RST
73 AK4586 CLK
CIRCUIT DESCRIPTION
I/O
I Unused.
I Data input from level shift (X09, IC8).
I Error detection when digital input.
I Audio bit validity detection for digital input.
I Clip detection from AK4586 (X09, IC7).
I Zero detection when digital input.
I Interruption pin for DSP.
O Clock output to sub CPU.
I Data input from sub CPU.
O Data output to sub CPU.
O Communication clock to DSP.
I Communication data input from DSP.
O Communication data output to DSP.
AV ref Power supply (+5.0V)
I A/D key inputs.
I/O EEPROM data input and output.
I Tuned signal input from tuner.
Detection pin for optical input.
I
Optical : 0.71V~2.69V Coax : 0V~0.7V, 2.7V~5.0V
I Unused.
I Control data for tuner.
I Setting pin for tuner.
Avss GND
I Reset signal input.
I Crystal oscillator input (10MHz).
O Crystal oscillator output (10MHz).
I GND
NC Unused.
I GND
VDD Power supply (+5.0V)
- GND
O Control data output to BD3811 (X09, IC23).
O Control pin for front speaker relay.
O Clock output to BD3811 (X09, IC23).
O Mute control to BD3811 (X09, IC23).
O Chip select to PLL IC.
O Clock output to PLL IC.
O Control data output to PLL IC.
O AD/DA chip select.
O AD/DA reset.
O Select signal (1~3) for video selector.
O Mute signal (1,2) for video selector.
O Unused.
O Unused.
O Amplifier mute control.
O Tuner mute control.
O Reset output to DSP.
O Address output to DSP.
O Control pin for standby LED.
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y
O Control pin for surround speaker relay.
O Mute control to TA2022 (X09, IC500~502).
i
O Control pin to power relay.
O Reset signal output to sub CPU.
O Data output to AK4586 (X09, IC7).
2 9
8
Pin Description
Q Q
3 6 7 1 3 1 5
co
.
DVR-8100
9 4 2 8
Logic
H
ERROR
DETECTED
CLIP
ZERO
0 5 8 2 9 9 4 2 8
RELAY ON
MUTE ON
MUTE ON
m
LED ON
RELAY ON
MUTE ON MUTE OFF
POWER ON
9 9
L
9 9
7