Panasonic KX-TEA308RU / KX-TE82460X / KX-TE82492X / KX-TE82493X / KX-A227X Service Manual ▷ View online
8 DISASSEMBLY INSTRUCTIONS
8.1. DISASSEMBLY INSTRUCTION
1. Pull the slide button (arrow 1) to the right and, holding it, slide the
cable cover upwards (arrow 2).
2. Then turn the cable cover slightly to remove it.
cable cover upwards (arrow 2).
2. Then turn the cable cover slightly to remove it.
3. Remove the three screws (A).
4. Holding the protrusions on both sides of the front cover, swing the
cover open.
cover open.
5. Holding the front cover open at about a 45° angle, remove the front
cover by pushing it in the direction of the arrow as shown on the right.
cover by pushing it in the direction of the arrow as shown on the right.
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KX-TEA308RU
5. Remove the 1 screws (A).
6. Remove the power supply board cover.
7. Pull out the 4 connectors.
8. Remove the 2 screw (B) and 1 screw (A).
9. Remove the power supply board.
10. Remove the 2 screw (B).
11. Remove the CO board.
6. Remove the power supply board cover.
7. Pull out the 4 connectors.
8. Remove the 2 screw (B) and 1 screw (A).
9. Remove the power supply board.
10. Remove the 2 screw (B).
11. Remove the CO board.
12. Pull out the 1 connector.
13. Remove the 2 screws (A) and 1 screw (B).
14. Remove the main board.
13. Remove the 2 screws (A) and 1 screw (B).
14. Remove the main board.
Procedure:
•
•
•
• Insert the SW CABLE into AC POWER SWICH.
Caution:
•
•
•
• Be sure each colored wire is inserted to the correct lug (very important).
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KX-TEA308RU
9
BLOCK
DIAGRAM
9.1.
SYSTEM
BLOCK
DIAGRAM
15
KX-
TEA30
8RU
9.2. POWER BLOCK DIAGRAM
9.3. KX-TEA308RU MAIN BLOCK DIAGRAM
KX-TEA308RU 1AP BLOCK DIAGRAM
Ho
st i/f
st i/f
Q1-4,TOE1,2,STD1,2
TONE
25Hz
CROSS
POINT
ROM
SRAM
DTMFR(1,2)
(For EXT)
PIO
ASIC
BELL
TONE
(I/O)HOOK1-8,BELL1-8
620,440,350Hz
CO CID
CONNECTOR
D-Sub
POWER UNIT
CONNECTOR
USB
CO1-3
EXT1-8
I/O,DTMFG
BGM
PAGE
CO
(2AP)
Card
CONNECTOR
ASIC
8086
DSP
P I O
APT i/f
BV Card
CONNECTOR
TAM1-2,TONE
(APT i/f)PRX,PTX,PTXE1-3
(UART)RXD,TXD
EXT1
EXT2
EXT3
EXT4
EXT5
EXT6
EXT7
EXT8
Ringer
Circuit
Circuit
Door Phone
Door Opener
CONNECTOR
DOOR1,2
Int CID(FSK,DTMF)
OGM,Modem
CN708
CN707
CN701
CN706
CN710
CN704
CN703
IC601
IC602
IC603
IC602
IC603
IC705
IC704
IC704
IC700
IC7, IC8
IC606, IC607
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KX-TEA308RU
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