Kenwood RXD-NV500, Service Manual

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RXD-NV500/NV600
8
CIRCUIT DESCRIPTION
Pin No. Name I/O Connect Description
43 SEL_MUTE O PD Selector CD,MD,TAPE mute output H = ON
44 MD_PROTECTION I PU Protection detect input (MD) H = NORMAL L = PROTECT
45 MD_RESET O PD MD ucom reset H = NORMAL L = RESET
46 POWER O PD Power relay control H = ON L = OFF
47 MD_CE O PD MD ucom power supply ON/OFF detect output H = NORMAL L = AC OFF
48 A_MUTE O PD Mute control output H = OFF L = ON
49 PROTECTION I PU Protection detect input H = PROTECTION
50 HP_SW I PU Phones jack detect input L = INSERT PHONES JACK
51 EX_AMP_STB O PD AMP expander IC latch output
52 EX_AMP_CLK O PD AMP expander IC clock output
53 EX_AMP_DATA O PD AMP expander IC data output
54 ATT O PD Attenuator control output H = OFF L = ON
55 SW_MUTE O PD Sub woofer mute control 2CH MUTE L: MUTE ON
3CH RELAY
H: SUB WOOFER ON
56 SP_RELAY O PD Speaker relay control H = ON L = OFF
57 HP_RELAY O PD Phones relay output H = ON L = OFF
58 EMP_MONO O PD Tuner emphasis control H = EMP L = MONO
59 PLL_DO I PU PLL IC data input LC72131
60 PLL_CE O PD PLL IC CE LC72131
61 PLL_CLK O PD clock output to PLL IC
62 +5V I VDD LC72131
63 PLL_DATA O PD Data output to PLL IC
64 GND I GND LC72131
65 STEREO I PU Tuner STEREO detect input H = MONO L = STEREO
66 SD I PU Tuner SD detect input H = NO TUNED L = TUNED
67 TUNER_MUTE O PD Tuner MUTE output H = ON L = OFF
68 DECK_DATA O PD DECK expander IC data output
69 DECK_CLK O PD DECK expander IC latch output
70 DECK_LAT O PD DECK expander IC clock output
71 REC_F_SW I PU DECK F-REC SW input H = OFF L = ON
72 PACK_SW I PU DECK PACK SW input H = OFF L = ON
73 PLAY_SW I PU DECK PLAY SW input H = OFF L = ON
74 CrO2_SW I PU DECK CrO2 detect SW input H = CrO2 L = Normal
75 REC_R_SW I PU DECK R-REC SW input H = OFF L = ON
76 REM_SW I PU Remocon and set connection detect SW input H: INSERT REMOCON
77 LED_DATA O PD LED expander IC clock output
78 LED_CLK O PD LED expander IC data output
79 LED2 O PD Standby/timer RED LED output L = ON
80 LED1 O PD Standby/timer GREEN LED output L = ON
81 RTREN I PD Remocon IC data transmit permission signal input L = permission
82 RWR I PD Remocon IC data read request signal input L = READ REQUEST
83 RWRREQ O PD Remocon IC data read signal input L = READING
84 REM_DATA O PD Remocon output expander IC data output
85 REM_CLK O PD Remocon output expander IC latch output
86 REM_LAT O PD Remocon output expander IC clock output
87~89 SIMUKE3~1 I PU Destination distinction input
90 2CH/3CH I PU Speaker output 2ch/3ch select distinction input H: 2CH
91,92 KEY1,2 I PU Key A/D input 1,2
93 DPSS I PU DECK DPSS detect A/D input
94 PHOTO I PU DECK run detect input
95 FAN_SENSOR I PU FAN control noise level detect input
96 AVSS I GND A/D converter GND
97 RDS_SLEVEL I PD RDS S level input
98 VREF I VDD A/D converter reference voltage +5V(non backup 5V)
99 AVCC I VDD A/D converter power supply +5V(backup 5V)
100 NC O NO USED