DMC-J3(K)1P( 98.4.25 19:57 y[W 10
DMC-J3
CIRCUIT DESCRIPTION
1-2 Pin description
Pin No.Pin NameI/ODescription
1/XLATOControl latch to CXD2655R
2/XRSTOReset to CXD2655R
3NCONo use
4/LDONOThe laser of the pickup output on/off. L:output.
5BEEPOBeep sound output.
6NCONo use
7/RESET�Microprocessor reset.
8VDD�Power supply (+5V).
9,10X1,2IMain clock generation(12MHz).
11VSS�GND
12/XSTBYOStandby signal output.
13CTLOThe feed motor drive signal output.
14PASSOPower save by-pass signal for DC/DC
15/SPOInverted switch port of the power supply to system and IC .
16,17NCONo use
18/CHGOKIRechargeable battery OK signal input port. H:NG
19CHGORechargeable current control output. H:charge on.
20SYS POWEROThe switch port of the power supply to system and IC .
21MLCD C/DODisplay driver command check signal output.
22MLCD C/SODisplay driver chip select signal output.
23RLCDDATAORemote control display driver serial control data.
24PWSOHeadphone amp output selector. H:output.
25-41�ONo use
42,43TEST1,0ITest mode.
44NCONo use
45VSS�GND
46TESTIDevice test.
47NCONo use
48EPCLKOE2ROM serial control clock output.
49MLCD CLKODisplay driver clock signal output.
50�ONo use
51MCLD DATAODisplay driver data signal output.
52EPCSOE2ROM serial control latch output.
53EPDIOE2ROM serial control data output.
54EPDOIE2ROM serial control data input.
55VDD�Power supply (+5V).
56,57KEY0,1IA/D voltage matrix key input. key0=unit,key1=:remocon).
58ADPIA/D external power supply voltage check input.
59BATT1IA/D minus power supply data input.
60BATT2IA/D pulse internal power supply data input.
61SPINIA/D spindle drive voltage input.
62/HPLDIHPLD switch check output. H:HOLD off.
63ADONOAVREF output.
64AVDD�Power supply (+5V) for A/D.
65AVREF1�Reference voltage for A/D.
66AVSS�GND for A/D.
67NCONo use
5 |