Basic Troubleshooting Guide For Traverse Unit; Overall Block Diagram For Ht440; Terminal Function Of Ics - Panasonic SA-HT440P Service Manual

20.1.1. Firmware and Key Download
20.1.2. Initialisation and playability

20.2. Basic Troubleshooting Guide for Traverse Unit

21. Overall Block Diagram for HT440

21.1. SC-HT440 DVD Unit Block Diagram
21.2. HT440 Block Diagram (Analog Signal : DVD 5.1ch Play Back
Mode)
21.3. HT440 Block Diagram (Analog Signal : 2ch Analog Input Mode)

22. Terminal Function of ICs

22.1. IC2001 (MN101C49GHG): Micro-processor IC
Pin Terminal I/O
No. Name
1 AVSS -
2 KEY1 I
3 KEY2 I
4 DES1 I
5 DES2 I
6 DES3 I
7 DISC I
SENSE
8 DES4 I
9 DES5 I
10 VREF+
-
11 VCC -
12 XOUT -
13 XIN -
14 VSS -
15 VSS -
16 N.C
-
17 VSS -
18 DVD_ O DVD module power control
PCONT
19 RF_DET I
(WM_DET)
Function
Power supply for A/D
converter (GND)
Key 1 line input
Key 2 line input
Tuner region setting
Model code Digit 1
DVD region setting
Disc sensor (RC1)
Model code Digit 2
Model code Digit 3
+ Power supply for A/D
converter
Power supply (5V)
Main clock output (8MHz)
Main clock input (8MHz)
GND (0V)
GND (0V)
No connection
GND (0V)
RF module detection -
wireless ready
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