Pioneer AVIC-N2 Service Manual page 222

1
-EEPROM setting mode
*) Since this product does not have OSD IC, OSD for adjustment is displayed by using GGF1416 and GGF1463
A
at the time of monitor adjustment. As you will find lands for 14 pins with 0.8mm pitch at the left top part of
the monitor board, directly solder a flexible PCB of GGD1323 for adjustment. As GGD1322 is not used, be
careful not to short the terminal.
[Operations]
To enter the setting mode, while keeping the EPRTEST terminal at "Low",
turn reset the monitor micro computer. While pressing the [REAR] and [EQ] Kyes at the same time,reset.
Flicker adjustment mode
Line adjustment 1 mode
Line adjustment 2 mode
Dimmer parameter setting mode
B
[ ↑ ↓ ] button: Used to select a desired adjustment item in each mode
[ ←→ ] button: Used to adjust the selected item
Notes:
1) The setting values are written in the EEPROM and then the read-out data is displayed on the screen.
WRITE and READ operations are processed by the block data of 16 bits.
The total bits for the settings depend on adjusting items.
2) For CS (Check Sum) items, when the settings are changed, the CS value is written in 8 bits by applying
the exclusive OR (XOR). The CS value is first written in the EEPROM and then the read-out data is displayed.
If the written data is different from the read-out data, the letter color for the read-out data is changed.
-
Memory items and addresses on the EEPROM
C
EEPROM
address Bit15 Bit14
00H
01H
02H
03H
Don't care
γ 3 inflection point (GAMMA 3)
04H
PIP SA:24h[B15-12]
05H
Sub brightness R after γ circuit (SUB BRI R)
06H
07H
D
08H
09H-1BH
1CH
1DH
1EH
1FH
20H
21H
22H
E
23H-3FH
F
222
1
2
Bit13 Bit12 Bit11 Bit10
Dimmer external light threshold (high)
Backlight output (upper limit)
Common reverse output center (COM DC)
PIP SA:22h[B15-8]
Output clamp DC (RGB BIAS)
PIP SA:23h[B13-8]
γ 2 inflection point (GAMMA 2)
PIP SA:24h[B11-8]
Output sub contrast R (SUB CON R)
PIP SA:26h[B15-9]
Sub brightness B after g circuit (SUB BRI B)
PIP SA:39h[B15-12] PIP SA:39h[B11-8]
Don't care
Don't care
Don't care
Don't care
External light of dimmer adjustment(H)
External light of dimmer adjustment(M)
External light of dimmer adjustment(L)
2
3
(S-93C46BR0I-J8T1)
Bit9 Bit8 Bit7 Bit6
Common reserve output amplitude (COM AMP)
Don't care
γ 1 inflection point (GAMMA 1)
PIP SA:24h[B7-3]
Output sub contrast B (SUB CON B)
Don't care
Don't care
Don't care
Don't care
Check sum address (00h-1bh)
Don't care
Don't care
AVIC-N2/XU/UC
3
4
Bit5 Bit4 Bit3 Bit2
Dimmer external light threshold (low)
Backlight output (lower limit)
PIP SA:22h[B7-2]
γ 0 inflection point (GAMMA 0)
PIP SA:23h[B3-0]
Don't care
PIP SA:26h[B7-1]
Don't care
Clock phase adjustment (DOT CLK)
PIP SA:2Ah[B3-0]
Sharpness (SHARPNESS)
PIP SA:05h[B2-1]
Common reverse output center(Reference)
Clock phase adjustment initial value
Back light of dimmer adjustment(H)
Back light of dimmer adjustment(M)
Back light of dimmer adjustment(L)
4
Bit1 Bit0
Don't care
Don't care
Don't care