Matsushita Electric CQ-C8403W, Service Manual

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Pin
No.
Port Part Name &
Description
I/O (V)
138 NC Not connected - -
139 NC Not connected - -
140 AD AVSS GND - 0
141 TH DETECT Thermal detection I 1.7
142 AD VREF +5V Power supply - 4.5
143 AD AVCC +5V Power supply - 4.5
144 PADJ IO3 Anode output pulse
width adjusting data 3
(Image data) O 1.2
10.3. CD Servo Block
IC101 : YESAM337
Pin
No.
Port Descriptions I/O (V)
1 AVSS GND - 0
2 LD-MT Loading Motor drive IC
control 1 O 3.2
3 CNT Loading Motor drive IC
control 2 O 3.2
4 - - - -
5 LD-EJ Loading Motor drive IC
control (Eject) O 0
6 AMUTE Mute signal output O 0
7 - - - -
8 SBSY DSP IC SBSY O 0
9 - - - -
10 - - - -
11 TXD0 Serial data output O 0
12 RXD0 Serial data input I 0
13 CLK0 Clock input I 2.9
14 - - - -
15 - - - -
16 - - - -
17 AMD - - 3.2
18 DVCC Power supply (3.3V) - 3.2
19 X2 Crystal oscillator - 1.3
20 DVSS GND - 0
21 X1 Crystal oscillator - 1.3
22 AMI - - 3.2
23 RESET Reset I 3
24 - - - -
25 - - - -
26 NMI - - 3.2
27 - - - -
28 STBY DSP IC STBY O 0
29 RST DSP IC RST O 3.2
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