Pioneer VSX-1128-K Service Manual page 25

5
No FL Display
This is just for general reference and does not including every single case.
No FL Display
Yes
Dimmer?
No
Is the voltage 5.0 to 5.8 Vac
No Check the transformer orange
CN3004 pins 1, 2, 3 on the
FRONT Assy?
Yes
Is the voltage 5 Vac FLT3001
No
pins 1 to 62 on the
FRONT Assy?
Yes
No
Is the voltage -30 V CP3001
pin 25 on the FRONT Assy?
Yes
No
Is the voltage -30 V C3032
- side on the FRONT Assy?
Yes
No
Is the voltage 5 V C3096
+ side on the FRONT Assy?
Yes
No
Is there 5 MHz output from
X3001 on the FRONT Assy?
Yes
No
Does FLT3001 have damage?
Yes
Relpace FLT3001.
5
6
No
"FL OFF" LED light on?
No
wires voltage 5 to 6 Vac.
Yes
Replace FLT3001
or replace the FRONT Assy.
Check FLT3001, R3021, R3022, R3025, R3026,
L3007, ZD3001, or replace the FRONT Assy.
No
Is the voltage -30 V CN304 Is the voltage -30 V CP12
pin 25 on the CPU Assy? pin 14 on the MAIN Assy?
Yes
Replace FFC. Replace the CPU Assy.
Relpace L3008, IC3001 or
replace the FRONT Assy.
Relpace D3033, D3034, Q3011, Q3009,
IC3001 or replace the FRONT Assy.
Relpace X3001, IC3001 or
replace the FRONT Assy.
Relpace the FRONT Assy.
6
7
Replace D3009, Q3006, Q3013
or replace the FRONT Assy.
Replace the power transformer.
No
Replace Q17, R64, R66 or
replace the MAIN Assy.
Yes
VSX-1128-K
7
8
A
B
C
D
E
F
25
8