LG / GOLDSTAR RZ-50PY10
Manual de Servicio

3. Protect Mode
(1) Symptom
After once shining, it does not discharge minutely from module ¯ The Rely falls(The sound is audible �click�) ¯ It is converted with the color where the front LED is red from green.
¯

(2) Check follow
Is normal the Power Board? Yes Is normal the each connector? Yes Is normal the Y- Board? Yes Is normal the Z- Board? Yes Is normal the X- Board? Yes Is normal the Ctrl Board? Yes Is normal the VSC Board? Yes Is normal the COF of X, Y, Z? No After crisis COF of each board, check the normality operates. If in case normality operates, correspondence COF Fail is replace the module. No Is normal the output voltage after remove P1000, P1200? Yes After remove P1000 normal operation: Replace Analog Board After remove P1200 normal operation: Replace Digital Board No Is normal the output voltage after remove P1, 2, 101, 300, 701, 702 connector of Ctrl-B/D? Yes Replace X-Board. No Is normal the output voltage after remove P1, 2, 3, 4, 6, 7 connector of X-B/D? Yes After remove P1, P2, P3, P4 output voltage normality: Replace Right X-B/D After remove P6, P7 output voltage normality: Replace Left X-B/D No Is normal the Fuse(FS1, FS2) on ZB/D? (In case of open is replace) Yes Is normal the output voltage after remove P1 connector of Z-B/D? Yes Replace Z-Board. No Is normal the Fuse(F52) on Y-B/D? (In case of open is replace) Yes Is normal the output voltage after remove P5, P6 connector of Y-B/D? Yes Replace Y-Board. No After connecting well each connector, the normality it operates? No Replace connector. No Is output the normality Low/High voltage except Stand-by 5V? No Replace Power Board.

- 25 -