NAD L 70, Service Manual

Page: 11 / 60

2-12
PIN No. SYMBOL I/O DESCRIPTION
1 OSD_H I OSD INPUT SENSING PORT
2 REMOTE I REMOTE CONTROL DATA INPUT PORT
3 RDS_CK O CLK/DATA PORT FOR RDS IC(SA6579TV1)
4 RDS_DA I
5 F_MUTE O FUNCTION MUTE CONTROL OUTPUT PORT("H")
6 EVOL_DA O DATA / CLK / CHIP ENABLE CONTROL PORT FOR ELECTRONIC VOL. IC(M62446AFP)
7 EVOL_CK O
8 EVOL_CE O
9 TEST - PROGRAM SUPPLY VOLTAGE(GND CONNECTION)
10 FUNC_A I FUNCTION SELECTOR (ENCODER) CONTROL PORT
11 FUNC_B I
12 RESET RESET INPUT PORT("L")
13 X-IN I 8MHz CRYSTAL CONNECTOR PORT
14 X-OUT O
15 VSS(GND) DEVICE GND PORT
16 BACKUP I BACKUP MODE CONTROL PORT("L")
17 MREQ DVD INTERFACE
18 FREQ DVD INTERFACE
19 SCKO DVD INTERFACE
20 DVD_IN DVD INTERFACE
21 DVD_OUT DVD INTERFACE
22 CLK1 O CLK OUTPUT PORT FOR AK4586, CS49326, LC7476 & NJU3713
23 CS_CE O CHIP ENABLE PORT FOR CS49326
24 DATA1 O DATA OUTPUT PORT FOR AK4586, CS49326, LC74763 & NJM3713
25 AK_CE O CHIP ENABLE PORT FOR AK4586
26 OSD_CE O CHIP ENABLE PORT FOR OSD IC(LC74763)
27 POWER O POWER ON CONTROL PORT("H")
28 PLL_DIN I PLL DATA INPUT PORT
29 FUNC_CE O CHIP ENABLE PORT FOR FUNCTION IC(TC9163/9164)
30 CLK2 O CLK OUTPUT PORT FOR PLL & FUNCTION IC
31 DATA2 O DATA OUTPUT PORT FOR PLL & FUNCTION IC
32 PLL_CE O PLL CHIP ENABLE PORT
33 +5V I POWER SUPPLY PORT
34~44 VFL GRID O VFL GRID CONTROL PORT
45~61 VFL SEGMENT O VFL SEGMENT CONTROL PORT
62~65 OPTION/VFL SEG. O OPTION CONTROL / VFL SEGMENT CONTROL PORT
66 -VKK I VFL POWER SUPPLY PORT(-30V)
67 OPTION I OPTION CONTROL PORT
68 H/P_IN I HEADPHONE IN/OUT SENSING PORT
69 PROTECT I PROTECT INPUT PORT("L")
70 STEREO I TUNER STEREO SENSING PORT
71 TUNED I TUNER TUNED SENSING PORT
72 VOL_B I MASTER VOLUME UP/DOWN CONTROL PORT
73 VOL_A I
74 CS_INTREQ I INTERRUPT REQUEST INPUT PORT FROM CS49326
75 CS/AK_DOUT I DATA INPUT PORT FROM AK4586 & CS49326
76~78 KEY_IN I KEY CONTROL INPUT PORT
79 CS_RST O RESET OUTPUT PORT FOR CS493263
80 EXP_CE O CHIP ENABLE PORT FOR NJU3713
IC PIN FUNCTION (IC81 : TMP87PS71AF(OTP)-ANAM 1359DAT(MICOM)