akira 21SHS3 Series, Service Manual

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Model No: 21SHS3-CE.doc
Version 1.0
FACTORY MENU
Main power +B setting
Receive standard color pattern RF signal. Set picture to “Standard Mode”. Adjust VR501, to get +B
(VD542 -) voltage =110V.
I
2
C bus control adjustment method
How to enter and exit factory mode (with customer’s remote controller)
1. Press [menu] key → display picture menu
2. Press digital key “6” “4” “8” “3” → display “M”
3. Push [standby] key one time to exit factory mode and return to normal.
How to select menus in factory mode
In factory mode {“M” mode) there are ten menus totally. Menu 1 to Menu 4 can be selected directly
but Menu 5 to Menu 0 must be select by these steps:
1. Press “CALL” key, to call “M”.
2. Press “LOCK” key, then press any one numeric key from 5 to 0.
For example, to select Menu 7, you should press “call” key and LOCK key in turns, then press the
numeric key 7.
Menu function introduction
Menu 1
Preset value
Item
50Hz 60Hz
Definition
V SLOPE 32 32 Vertical linearity
V SHIFT 32 32 Vertical position
V SIZE 32 32 Vertical size
V SC 32 32 Vertical S correction
H SHIFT 32 32 Horizontal position
Menu 2
Item Preset value Definition
RF AGC 20 RF AGC adjust, when the signal is poor, you can decrease the
value to increase the gain
Shipping For factory use
Menu 3
Item Preset value Definition
BT 75 Bright in W/B mode
CT 75 Contrast in W/B mode
SC Screen mode (press Vol +/- or CH +/- key to enter or exit).
Adjust screen knob on FBT to adjust the bright of the line.
RB 32 Red bias adjust
GB 32 Green bias adjust
RD 32 Red drive adjust
GD 32 Green drive adjust
BD 32 Blue drive adjust
SB 40 Sub-bright adjust
Note:
1. BT /CT can not be remembered.
2. RB /GB /RD /GD /BD /SB can be remembered.