Roadstar CTV510ES Service Manual

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DO NOT CHANGE ANY MODULE UNLESS THE SET !S SWITCH OFF.
The mains supply side of the switch mode power supply transformer is live.
Use an isolating transformer.
The receivers fulfill completely the sfety requirements.
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Safety precautions
Servicing of this TV should only be carried out by a qualified person.
* Components marked with the warning symbol on the circuit diagram are critical for safety
and must only be replaced with an identical component.
* Power resistor and fusable resistors must be mounted in an identical manner to the
origina! component.
* When servicing this TV, check that the EHT does not exceed 26 KV.
TV set switched off:
Make short-circuit between HV-CRT clip and CRT ground layer.
Short C808 (150uF) before changing I!C801 or other components in primary side of SMPS.
Measurements
Voltage readings and oscilloscope traces are measured under following conditions.
Antenna Signal 60dBuV from colorbar generator. (100% white, 75% color saturation)
Brightness, contrast, color set for a normal picture
Mains supply, 220V AC, 50 Hz.
CER -TV SOCKET
J 5 7 9 1f 19° 15 17 19 21
SHEDS DEAD
ODO
2 4 6 86 10 12 14 16 18 20
SCART 1 (SC401)
SCART 1 (SC402)
(OPTIONAL.
AF right output 0.5Vrms / 1K AF right output 0.5Vrms/ 1K
AF right input 0.5Vrms / 10K AF right input 0.5Vrms/ 10K
AF left output 0.5Vrms / 1K AF left output 0.5Vrms/ 1K
Ground AF Ground AF
Ground blue Ground blue
AF left input 0.5Vrms / 1K AF left input 0.5Vrms/ 1K
Blue input 0.7Vpp / 75
AV switching input 9.5-12Vdc/ 10
Ground green
Ground green
WOONONA RWND = OOnNOONAR WHY =
Green input 0.7Vpp / 75
Ground red
Ground blanking
Red input 0.7Vpp / 75
Blanking input 1.3Vpp/75
Ground CVS output
Ground blanking input
CVS output 1Vpp/75
CVS input 1Vpp/75
Ground
Ground red
Ground blanking
Ground CVS output
Ground blanking input
CVS output 1Vpp / 74
CVS input 1Vpp / 74
Ground