Panasonic 2WAY Multi Technical & Service Manual page 21

Is approximately AC200V applied between the magnet switch's No. 2
3-4
and No. 6 when the magnet switch is turned on?
Are there any defective wiring connections/contacts or severed wires between the magnet
3-5
switch and the starter power source's relay connector 2P-6 (white?) → Repair wiring
Is approximately AC200V being applied between the magnet switch
3-6
No.1 and No.5?
Is approximately AC200V applied between the magnet switch A1 and
3-7
A2 when the magnet switch is turned on?
Are there any defective wiring connections/contacts or severed
3-8 wires between the outdoor unit's power board connector 3P (yellow)
CN028 and the magnet switch?
Is approximately AC200V being applied between the outdoor unit's
3-9
power board connector 3P (white) CN002 No.1 and No.3?
4
Is DC10V or more applied between the starter B terminal (+) and
4-1
Starter/
engine ground (-) when the magnet switch is on?
starter relay
(outdoor unit
Is DC10V or more applied between the starter S terminal (+) and
4-2
main board)
engine ground (-) when cranking is started?
Is DC10V or more applied between the starter power source (+) and (-)
4-3
when the magnet switch is on?
Are there any defective wiring connections/contacts between the starter power source's +
4-4 terminal and the starter's B terminal, or between the starter power source's - terminal and
engine ground? → Repair wiring
Is DC10V or more applied between the outdoor unit's power board
4-5 connector CN084 (+) and the outdoor unit's main board connector
FG CN075 (-) when cranking is started?
Are there any defective wiring connections/contacts between the outdoor unit's power board
4-6
connector CN084 (+) and the starter's S terminal? → Repair wiring
Is DC10V or more applied between the outdoor unit's power board
4-7 connector CN084 (+) and the outdoor unit's main board connector
FG CN075 (-) when the magnet switch is on?
Are there any defective wiring connections/contacts between the outdoor unit's power board
4-8
connector CN084 (+) and the starter power source's + terminal? → Repair wiring
● For work procedure for replacing outdoor main board, see "5. Reference Document".
● For board and Electrical Wiring Diagram, see Chapter 6.
• Outdoor main board: page VI-2
• Outdoor power board: page VI-3
• Converter board: VI-4
• Indoor control board for DC motor models: page VI-5
• Outdoor Unit Electrical Wiring Diagram: page VI-6
● 3-1~3-5, 4-3, 4-4, 4-6, 4-8
IV–8
Yes 3-5
No 3-6
Yes 3-7
Check primary
No
wiring→ Repair
Replace the
Yes
magnet switch
No 3-8
Yes Repair Wiring
No 3-9
Replace the
Yes outdoor unit's
power board
Check the
No relevant wiring
and fi lter board
Yes 4-2
No 4-3
Replace the
Yes
starter
No 4-5
Yes 4-4
No 3-3
Yes 4-6
No 4-7
Replace the
Yes outdoor unit's
main board
No 4-8