Samsung DVD-HR773 Training Manual page 34

Tr oubl es hoot i ng ( For s er vi ce
engi neer )
Di s c I oadi ng er r or
1. I s t he 40pi n FFC cabl e( bet weenm ai n &
deck) i ns er t ed cor r ect l y?
2. Ar e Mai n, HDD power and deck power OK
( 5v, 12v) ?
NO Power Det ect ed ( St and by Fr ont VFD OFF)
1. Check the FFC cable between function board and Jack
board?
2. Check 2st voltage(- 30V, VF+,VF- )
3. F1S01 is normal?(Change fuse)
CVBS( Vi deo) out put er r or
•
#4, 6pin in CN2 of jack PCB has normal level?
•
I2C singles in IC216(pin16, 18) are swinged between
0~5V?
• Power is normal(5V) at IC216(pin 30, 34) ?
AV3 CVBS Vi deo I nput Er r or
•
#8pin in IC216 has normal level?
•
I2C singnals in IC216(pin16, 18) are swinged between
0~5V?
•
#9 pin in CN1 of Jack PCB has normal level?