Read LG 60PS80BD-SA (CHASSIS:PB92A) Service Manual online
10-3. Check Items
(1) Test Voltage
- GND: 1.5KV/min at 100mA
- Signal: 3KV/min at 100mA
- Signal: 3KV/min at 100mA
(2) Test time: just 1 second.
(3) Test point
(3) Test point
- GND test: Test between Power cord GND and Signal
cable metal GND.
- ESD test: Test between Power cord GND and Live and
neutral.
(4) Leakage current: Set to 0.5mA(rms)
10-4. POWER PCB Assy Voltage Adjustment
(Va, Vs voltage adjustment) <— ONLY PDP
(1) Profile
To supply the Va, Vs voltage that the module want.
(2) Equipment :
Stick for adjustment, DMM
(3) 42Inch/50Inch Adjustment method for Power board
- After Changing RF snow noise.
1) Connection Diagram for measuring
2) Vs Adjustment
Connect + terminal of D. M..M. to Vs pin of P811,
connect - terminal to GND pin of P811.
After turning VR901, voltage of D.M.M adjustment as
same as Vs voltage which on label of panel right/top (
deviation ; ±0.5V)
deviation ; ±0.5V)
(4) 50FHD Adjustment method for Power board
- After Changing RF snow noise.
1) Connection Diagram for measuring
2) Va Adjustment
Connect + terminal of D. M..M. to Va pin of P811,
connect - terminal to GND pin of P811.
After turning VR501, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top (
deviation ; ±0.5V)
deviation ; ±0.5V)
3) Vs Adjustment
Connect + terminal of D. M..M. to Vs pin of P811,
connect - terminal to GND pin of P811.
After turning VR901, voltage of D.M.M adjustment as
same as Vs voltage which on label of panel right/top (
deviation ; ±0.5V)
deviation ; ±0.5V)
(5) 60FHD Adjustment method for Power board
- After Changing RF snow noise.
1) Connection Diagram for measuring
2) Va Adjustment
Connect + terminal of D. M..M. to Va pin of P812,
connect - terminal to GND pin of P812.
After turning VR901, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top (
deviation ; ±0.5V)
deviation ; ±0.5V)
3) Vs Adjustment
Connect + terminal of D. M..M. to Vs pin of P812,
connect - terminal to GND pin of P812.
After turning VR951, voltage of D.M.M adjustment as
same as Vs voltage which on label of panel right/top (
deviation ; ±0.5V)
deviation ; ±0.5V)
- 16 -
Connection Diagram of power adjustment for measuring.
Connection Diagram of power adjustment for measuring.
Connection Diagram of power adjustment for measuring.
Click on the first or last page to see other 60PS80BD-SA (CHASSIS:PB92A) service manuals if exist.