Description Of Major Ics - JVC VS-DT9R Service Manual

VS-DT9R/VS-DT6R

Description of major ICs

MN101CP30AKJ (IC701) : System control microcomputer
1. Terminal layout
64 49
1
48
16 33
17 32
2. Pin function
Pin No. Symbol
1 THERM
2 KEY1
3 KEY2
4 VERSION
5 GND
6 VREF+
7 VDD
8 OSC2
9 OSC1
10 VSS
11 XI
12 XO
13 GND
14 CDTX
15 CDRX
16 FLRST
17 FLDATA
18 FLCS
19 FLCLK
20 STBLEDH
21 RST
22 STBLEDV
23 FTU
24 TUDATA
25 TUST
26 TUCK
27 MPX
28 RDSCK
29 RDSI
30 REM
31 GND
32 SMUTE
33 AHB
34 VOLDI
35 VOLCE
36 VOLCL
37 LOMUTE
38 TREMCONT
39
40 H-V
1-18
I/O
I Temperature detection, ON/OFF control of FAN_SW signal(pin 57)
I Key switch input of the main body
I Key switch input of the main body
I Switching signal for destination
- Ground
- Reference voltage for A/D converter (Connect to VDD.)
- Power supply for microcomputer
O 8MHz main clock output
I 8MHz main clock input
- Ground for microcomputer
I 32.768kHz sub clock input
O 32.768kHz sub clock output
- Ground
O CD(FMU-F1) communication
I CD(FMU-F1) communication
O FL reset output
I/O FL driver communication data input/output
O FL driver communication chip select output
O FL driver communication clock output
O Standby LED for horizontal establishment (POWER_OFF/ON=H)
I Microcomputer reset input
O Standby LED for vertical establishment (POWER_OFF/ON=H)
O Power supply for tuner
I/O PLL input/output data (Connect to tuner.)
O PLL strobe output (Connect to tuner.)
O PLL clock output (Connect to tuner.)
I Stereo detection (Connect to tuner.), STEREO=L
I RDS clock input (Connect to tuner.)
I RDS data input (Connect to tuner.)
I Remote controller input
- Ground
O Mute signal, MUTE=L
O Bass boost, ON=L, POWER_OFF=L
O Data output (Connect to VOLUME_IC.)
O Enable output (Connect to VOLUME_IC.)
O Clock output (Connect to VOLUME_IC.)
O Line out mute signal, MUTE=L
I Remote controller effective signal for horizontal establishment, L : effective state
- Not connect
I Detecting signal for horizontal or vertical establishment
Function