Hi I have Panasonic Hi-Fi system that will not power up? It was working fine one day, went to turn it on the next day, nothing happened?
Checked the obvious - mains cable and internal F1 fuse, all ok.
Have replaced the following electrolytic capacitors:
C6 22uf 50V, C9 47uf 50V, C10 47uf 16V, C11 470uf 10V, C12 470uf 10V and C26 680uf 50V. C11 and C12 (470uf 10V) had very high uF values which I presumed was the main problem?
C1 and C2 both 330uF 250V check out ok using Atlas ESR meter.
I have the following DC voltages at CONN 2: (disconnected)
1. +33.7V
2. +33.7V
3. PGND 00.00V
4. PGND 00.00V
5. NC 00.00V
6. + 3.25V
7. PROT 00.00V
8. SM-D 00.00V
9. AM-BP 00.00V
10. TEMP 00.00V
11. SYNC 00.00V
12. POWER 00.00V
13. ECO 00.00V
I don't have any schematics for this unit, also, should I have any voltage at PIN 12 or would this be maybe power in from main board?
Any ideas appreciated?
Thanks, Albert.
Checked the obvious - mains cable and internal F1 fuse, all ok.
Have replaced the following electrolytic capacitors:
C6 22uf 50V, C9 47uf 50V, C10 47uf 16V, C11 470uf 10V, C12 470uf 10V and C26 680uf 50V. C11 and C12 (470uf 10V) had very high uF values which I presumed was the main problem?
C1 and C2 both 330uF 250V check out ok using Atlas ESR meter.
I have the following DC voltages at CONN 2: (disconnected)
1. +33.7V
2. +33.7V
3. PGND 00.00V
4. PGND 00.00V
5. NC 00.00V
6. + 3.25V
7. PROT 00.00V
8. SM-D 00.00V
9. AM-BP 00.00V
10. TEMP 00.00V
11. SYNC 00.00V
12. POWER 00.00V
13. ECO 00.00V
I don't have any schematics for this unit, also, should I have any voltage at PIN 12 or would this be maybe power in from main board?
Any ideas appreciated?
Thanks, Albert.
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