Ic Block Diagrams; Ic Pin Functions - Sony LBT-LX7 Service Manual

HCD-LX7/LX8

6-29. IC BLOCK DIAGRAMS

• MAIN (1/3) section
IC181 MC14052BF
1 16 VDD
2X0
15 X2
2X2 2
14 X1
2XCOM 3
13 XCOM
2X3 4
12 X0
2X1 5
INH 6 11 X3
VEE 7 10 A
VSS 8 9 B
IC191 BA7615N
MUTE
75Ω
8db
LOGIC
1
2 3 4 5 6 7 8 9 10
• PANEL FL section
IC603 BA3830F
R02 REFFERENCE
1 RESET 18 RESET
CURRENT
REFFERENCE
P01 2 17 f01
CURRENT
LINE BPF DET
3 16 f02
NF
BPF DET
LINE
4 15 f03
IN
BPF DET
REC 5 14 f04
BPF DET
NF
DET
BPF
REC 6 13 f05
IN
BPF DET
RESET 7 12 f06
DET
C
BIAS 8 11 REC
C Bias LEVEL
GND1 9 10 VCC
• PANEL VR section
IC701 NJU3716L
DATA 13 17 P1
19 P2
CLK 14 20 P3
21 P4
VDD
24 22 P5
23 P6
1 P7
2 P8
3 P9
4 P10
5 P11
7 P12
8 P13
9 P14
10 P15
11 P16
12 SO
6 GND
STB 15
CONTROL
CLR 16
18 GND
50

6-30. IC PIN FUNCTIONS

• MAIN BOARD IC501 MAIN CONTROL (M306622 MA-A26FP)
Pin No. Pin Name I/O
1 POWER O Power amp ON/OFF signal output
2 POWER O Power ON/OFF signal output
3 F-RELAY O Front speaker relay control output
4 REAR-RELAY O Rear speaker relay control output (Not used)
5 CD-POWER O CD power on signal output
6 LINE-MUTE O Line mute signal output
7 DBFB-H/L O DBFB H/L select signal output
8 – – Connected to ground
9 – – Connected to ground
10 XC-IN I
X'tal (32.768 KHz) (SUB CLOCK)
11 XC-OUT O
12 RESET I System reset signal input
13 X-OUT O X'tal (16MHz) (MAIN SYSTEM CLOCK)
14 VSS – Ground
15 X-IN I X'tal (16MHz) (MAIN SYSTEM CLOCK)
16 VDD – Power supply (+5V)
17 NMI I Not used
18 WAKE UP I WAKE UP signal input
19 SCOR I CD Q-data request signal input
20 RDS-INT I RDS data interrupt input
21 RDS-DATA I RDS data interrupt input
22 AC-CUT I AC cut ON (L)/OFF (H) check
23 PL-CLK O Clock output to pro-logic (Not used)
24 PL-DATA O Data output to pro-logic (Not used)
25 PL-LAT O Latch signal output to pro-logic (Not used)
26 TIMER LED O Not used
27 PROTECT I Speaker protect signal input
28 V MUTE O Video mute signal output
29 IIC-CLK O I 2 C SCL
30 IIC-DATA O I 2 C SDA
31 – – Not used
32 SQ-DATA I Subcode Q data clock input (CD data)
33 SQ-CLK I Subcode Q data clock input (CD data clock)
34 SW-MODE O SW-MODE music/movie select signal output
35 CD-DATA O CD data output
36 H/P IN I Head phone detect
37 CD-CLK O CD clock output
38 493-LAT O Latch signal output for IC101 (M62493FP)
39 CLOCK-OUT O Clock out signal check
40 NO-USE – Not used
41 NO-USE – Not used
42 FL OFF O Fluorescent indicator tube filament on/off signal output
43 STBY RELAY O Main POWER on/off signal output
44 BASS FREQ O FREQ high/low signal output (Not used)
45 FUNC SEL 1 O Function select signal output
46 FUNC SEL 0 O Function select signal output
47 493-DATA O Data signal output for IC101 (M62493FP)
48 493-CLK O Clock signal output for IC101 (M62493FP)
49 ST-MUTE O Tuner mute signal output
50
Function