Description Of Major Ics - JVC KV-DV7 Service Manual

KV-DV7

Description of major ICs

UPD780058GC-250 (IC701) : Micon
1. Pin layput
60
1
2. Pin function (1/2)
Pin No. Symbol
1 TEMP
2 -
3 -
4 AVSS
5 LCDCONT
6 D_OUT_MUTE
7 AVREF1
8 LCDDI/RXDO
9 LCDDO/TXDO
10 LCDCL/ASCK
11 JBUS_SI
12 JBUS_SO
13 JBUS_SCK
14 JBUS_CTRL+B
15 ANT_FM
16 D_HOST
17 D_FM
18 SCK
19 RDY_FM
20 /HOST_RST
21 NTSC/PAL
22 E.VOL_SCK
23 E.VOL_DO
24 E.VOL_STB
25 V_MUTE
26 A_MUTE
27 D_MUTE
28 LED_DISCIN
29 LED_DSP
30 LED_CD/DVD
31 LED_DVD
32 EEPROM_DO
33 VSS1
34 EEPROM_DI
35 EEPROM_CLK
36 EEPROM_CONT
37 FANCONT
38 -
39 -
40 LCDCE
1-12
~ 41
~ 20
I/O
I Templature sensor
I Non connect
I Non connect
- Audio ground
LCD control
O DIgital out mute
- Anarog reference voltage
I Communication for JIG LCD or PC
O Communication for JIG LCD or PC
O Communication for JIG LCD or PC
I J-BUS serial input
O J-BUS serial output
I J-BUS serial clock input
- Power supply for J-BUS control
O Communication for DVD mechanism
I Communication for DVD mechanism
O Communication for DVD mechanism
I Communication for DVD mechanism
O Communication for DVD mechanism
O Communication for DVD mechanism
O NTSC/PAL control (H:PAL L:NTSC)
O E. volume serial clock output
O E. volume data output
O E. volume strobe output
O Video mute output
O Audio mute output
I Audio mute input
O LED output for slot
O LED output for Real sonic or Remocon
O LED output for CD/DVD
O LED output for DVD
- Non connect
- Ground1
- Non connect
- Non connect
- Non connect
O Fan control
- Non connect
- Non connect
- LCD chip select
Function