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NO SOUND
IC905 17,22 PIN OUTPUT CHECK
NO
YES
IC905 INPUT CHECK(FUNK BLOCK INPUT CHECK)
NO
YES
RY700 CONTROL CHECK
NO
YES
OK
SPK Relay Troubleshooting (ONLY LX-W550`s)
D503 (+)12V CHECK
NO
YES
Q511 Collector "Low"CHECK
NO
YES
OUTPUT SOUND CHECK
NO
YES
OK
IC905 Troubleshooting VIEW
Muting troubleshooting VIEW
POWER CIRCUIT CHECK
SPK Relay troubleshooting VIEW
VOLTAGE CHECK LIST
Q511 Base "High"
NO
YES
Q511 CHANGE
RELAY CHANGE (RY700)
- 2-16 -
IC204 Troubleshooting
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