Read Panasonic SA-HT845EE Service Manual online
26.1. IC2018 (C2CBJG000672):
System control
Pin
No.
Terminal
Name
I/O
Function
1
TRY_
CLOSE
CLOSE
I
Loading mechanism close SW ( L: SW
ON )
ON )
2
TRAY_CCW
O
Terminal for tray control 1
3
TRAY_CW
O
Terminal for tray control 2
4
TRY_OPEN
I
Loading Mechanism open SW ( L: SW
ON )
ON )
5
N.C
-
Not used, open
6
N.C
-
Not used, open
7
BRAKE_H
O
Terminal for tray control 3
8
BYTE
-
VSS (GND)
9
CNVSS
-
VSS (GND)
10 N.C
-
Not used, open
11 N.C
-
Not used, open
12 RESET
I
System Reset Input
13 XOUT
-
Main Clock Output (10.0 MHZ)
14 VSS
-
GND (0V)
15 XIN
-
Main Clock Input (10.0 MHZ)
16 VCC
-
Power supply (5V)
17 NMI
I
Connect to VCC, External Interrupt I/P
18 RMT
I
Remote control input
19 SYNC
I
AC failure detection input
20 N.C
-
Not used, open
21 DIVX_SEL
I
DivX Model Selection ( L = No DivX, H =
DivX)
DivX)
22 SPK_EN
I
Speaker Protection (L = Speaker Protect
OFF, H = Speaker Protect ON)
OFF, H = Speaker Protect ON)
23 EDA
I/O DATA signal for the EEPROM
24 ECK
O
CLOCK signal for the EEPROM
25 ECS
O
LAT signal for the EEPROM
26 N.C
-
Not used, open
27 TUN_SD
I
Station Detection
28 TUN_DO
I
Stereo Detection
29 TUN_CLK
O
Clock for Tuner
30 TUN_DI
O
Data for Tuner
31 Tx
-
Not used
32 Rx
-
Not used
33 CLK
-
Not used
34 MUTE_S
O
Mute signal for surround Audio signal
35 DVD_CMD
O
CMD signal for the DVD Module
36 DVD_STAT
I
STATUS signal from the DVD Module
37 DVD_CLK
I
CLK signal for the DVD Module
38 WIDE1
O
Control Signal for the WIDE function
39 MUT_FRNT
O
Mute signal output for Front speaker
40 MUTE_C
O
Mute signal output for Center speaker
41 EPM
-
Not used
42 MUTE_SUB
O
Mute signal output for Subwoofer
43 HP_MUTE
O
Mute signal output for Headphone
44 DVD_MUTE
I
Signal from DVD module control mute
circuit
circuit
45 RGB_H
O
Mute signal 1 for video output
46 YC_H
O
Control signal for the video signal Mix
47 MUTE_L
O
MUTE signal for the Line output
48 VOL_DA
O
DATA signal for 6ch VOL ASP
49 VOL_CK
O
CLOCK signal for 6ch VOL ASP
50 SCART_
MUTE
O
Line out for SCART terminal
51 MIC_MUTE
O
Muting circuit for the MIC input
52 SS_DAT
O
DATA Signal for S.SRND IC
53 SS_CLK
O
Clock Signal for S.SRND IC
54 N.C
-
Not used, open
55 HB_MUTE
O
H.Bass Mute
Pin
No.
Terminal
Name
I/O
Function
56 HB_LVL
-
Not used, open
57 CMIX
-
Not used, open
58 SURR_FC1
O
Surround Freq. Limiter 1
59 SURR_FC2
-
Not used, open
60 N.C
-
Not used, open
61 N.C
-
Not used, open
62 VCC
-
Power supply 5.0V
63 FAN_CTRL
O
FAN Control output
64 VSS
-
GND (0V)
65 RF_DET
-
Not used, open
66 RF_PCON
-
Not used, open
67 RF_LINK
-
Not used, open
68 DVD_PCNT
O
Control signal for the power for the DVD
Module
Module
69 N.C
-
Not used, open
70 PCONT
O
Control Signal for the Power Control
Relay
Relay
71 MUTE_H
O
HIC Mute
72 DC_DET
I
Signal from the DC Detection circuit
73 RDS_CK
I
Clock signal from the RDS decoder
74 RDS_DAT
I
Data signal from the RDS decoder
75 JOG_B
I
Signal B from Volume JOG
76 JOG_A
I
Signal A from Volume JOG
77 N.C
-
Not used, open
78 N.C
-
Not used, open
79 N.C
-
Not used, open
80 N.C
-
Not used, open
81 FLD_DA
I
Data input for the FL Driver
82 N.C
-
Not used, open
83 N.C
-
Not used, open
84 N.C
-
Not used, open
85 N.C
-
Not used, open
86 KEY 3
-
Not used, open
87 FLD_RST
O
Reset signal for the FL driver
88 FLD_CS
O
Latch signal for the FL driver
89 FLD_CK
O
Clock signal for the FL driver
90 N.C
-
Not used, open
91 KEY 2
I
Key 2 line input
92 N.C
-
Not used, open
93 DES3
I
Region setting for DVD
94 MODEL_
SEL
I
Model selector
95 DES1
I
Region setting for Tuner
96 AVSS
-
Analog power supply input
97 KEY1
I
Key 1 line input
98 VREF
-
Reference voltage input
99 AVCC
-
Analog power supply input
100 N.C
-
Not used, open
26 Terminal Function of ICs
72
SA-HT845EE
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