Kenwood VR 3080 - Dolby Digital Receiver Service Manual page 8

KRF-V7772D/VR-3080
4-2 Pin description
Pin No. Name
1-8 REM_D0-D7
9 VDD
10-13 TSW3-0
14 ENC_A
15 ENC_B
16 -
17 T_MUTE
18 PLL_CLK
19 PLL_DATA
20 PLL_DO
21 PLL_CE
22 TEST/VPP
23 PLL_SD
24 PLL_STEREO
25-28 WIDE_V1-4
29 WIDE_AUX
30 WIDE_OUT
31 VIDEO_MUTE
32 TONE_ST
33 VOL_ST
34 VOL_DATA
35 VOL_CLK
36 CE
37 VDD
38 X2
39 X1
40 VSS
41,42 XT2,1
43 RESET
44 REM0
45 REM1
46 CODEC_CS
47 CODEC_ERR
48 CODEC_AC3
49 DSP_DTS
50 DSP_AC3
51 AVDD
52 AVREF0
53 DATA_DET
54 CODEC_FREQ1 I
55 CODEC_FREQ0 I
56,57 Not used
58 CODEC_AUDIO
59 DSP_NPCM
60 DSP_SENC
61 AVSS
62 DSP_CS_A
63 DSP_CS_B
64 AVREF1
65 DSP_SI
8
CIRCUIT DESCRIPTION
I/O Connect
O P.D. LCD REMOTE DATA OUT-7
- - +5V
I - TUNER DESTINATION SWITCH3-0
I - VOLUME ENCODER INPUT A
I - VOLUME ENCODER INPUT B
I P.D. Not used
O P.U. TUNER MUTE
O P.D. PLL(LC72131) CLOCK
O P.D. PLL(LC72131) DATA
I P.D. PLL(LC72131) DO
O P.D. PLL(LC72131) CE
- - GND
I P.U. PLL(LC72131) SD
I P.U. PLL(LC72131) STEREO
I P.U. VIDEO1-4 S1 WIDE DETECTOR
I P.U. AV AUX S1 WIDE DETECTOR
O P.D. MONITOR OUT S1 WIDE INPUT
O P.D. VIDEO MUTE (mute on:H)
O P.D. TONE(TC9184) STROBE
O P.D. VOLUME(TC9412) STROBE
O P.D. VOLUME(TC9412), TONE(TC9184) DATA
O P.D. VOLUME(TC9412),TONE(TC9184)CLOCK
I P.D. CHIP ENABLE
- - +5V
- - 12.5MHz
I - 12.5MHz
- - GND
- - Not used
I - RESET
I P.D. REMOTE CONTROLLER SIGNAL INPUT 0 (FRONT PANEL)
I P.D. REMOTE CONTROLLER SIGNAL INPUT 1 (IR RECEIVER)
I P.D. CODEC(CS4226) CHIP SELECT
I P.D. CODEC(CS4226) ERROR DETECT
I P.D. CODEC(CS4226) AC-3(DOLBY DIGITAL, DTS, MPEG DETECT
I P.D. DSP(YSS912) DTS DETECT
I P.D. DSP(YSS912) AC-3 DETECT
- - +5V
- - GND
I P.D. DIR DATA DETECT
P.D. CODEC(CS4226) CHANNEL STATUS FREQ. BIT 1
P.D. CODEC(CS4226) CHANNEL STATUS FREQ. BIT 0
I - GND
I P.D. CODEC(CS4226) non AUDIO DETECT
I P.D. DSP(YSS912) non PCM DETECT
I P.D. DSP(YSS912) SURROUND ENCODE DETECT
- - GND
O P.D. DSP(YSS912) CHIP SELECT
O P.D. DSP(YSS912) SUB DSP CHIP SELECT
- - +5V
I P.D. DSP(YSS912), CODEC(CS4226)DATA IN
Description