Panasonic VL-SVN511BX Service Manual page 13

4.3.1.2. Power Supply Unit (VL-PS241)
Power control IC (IC1)
Input voltage: AC 220V~240V
Output voltage: DC 24V
Package: 7pin DIP
Outline of Operation: It generate from AC 220V~240V to DC 24V.
4.3.1.3. Power Board (VL-MVN511)
Regulator for Power 12V (IC30)
Input voltage: +24V
Output voltage: +12V
Package: 6pin SOT-23-6W
Outline of Operation: It generate from +24V to +12V.
4.3.1.4. Main Board
4.3.1.4.1. External Interface Part
Regulator for Power 5V (IC910)
Input voltage: +12V
Output voltage: +5V
Package: 8pin SOP-8
Outline of Operation: It generate from +12V to +5V.
Regulator for BBIC & SP AMP 4V (IC930)
Input voltage: +12V
Output voltage: +4V
Package: 8pin SOP-8
Outline of Operation: It generate from +12V to +4V.
Regulator for WiFi 3.3V (IC960)
Input voltage: +4V
Output voltage: +3.3V
Package: 6pin SOT89-5
Outline of Operation: It generate from +4V to +3.3V.
Regulator for 3.3V (IC920)
Input voltage: +12V
Output voltage: +3.3V
Package: 8pin SOP-8
Outline of Operation: It generate from +12V to +3.3V.
FM Demodulation (IC670)
Operating Power Supply: +5V
Package: 24pin SOP
Outline of Operation: The video signal (FM) from the Door
Station is demodulated.
Regulator for 5V (IC671)
Input voltage: +12V
Output voltage: +5V
Package: 5pin SOT-25A
Outline of Operation: It generate from +12V to +5V (FM
Demodulation).
OP AMP for Door station (IC500)
Operating Power Supply: +12V
Package: 8pin SSOP-8
Outline of Operation: The sound signal (send & receive) are
converted to 2 line from 4 line.
PBX OFF-HOOK detection photo coupler (IC700)
Operating Power Supply: +3.3V
Package: 4pin
Outline of Operation: The off hook signal detected.
OP AMP for PBX 2/4 conversion (IC701)
Operating Power Supply: +12V
Package: 8pin SSOP-8
Outline of Operation: The sound signal (send & receive) are
converted to 2 line from 4 line.
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VL-SVN511BX/VL-SVN511CX/VL-SVN511CX1