JVC KD-AVX1 Service Manual page 37

4.6.9 Monitor adjustment
When adjusting, switch on the main unit and insert a test disc (VT-501). And play the test disc and pause it.
(Exit for VCO FREE-RUN adjustment)
R/W CHROMA 1
1. Set the service mode 4.
2. Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] button.
3. Change data with the [B.SKIP]/[F.SKIP] buttons.
4. Write data with a [OK] button.
When performing the VCO FREE-RUN N adjustment, set the NTSC mode (Service mode 3
DVD NTSC/PAL) and turn the input into the no input. Connect the frequency counter to the point (TP661 or
TP681-GND) on the panel board and set the frequency into 15.62
When performing the VCO FREE-RUN P adjustment, set the PAL mode (Service mode 3
DVD NTSC/PAL) and turn the input into the no input. Connect the frequency counter to the point (TP661 or
TP681-GND) on the panel board and set the frequency into 15.73
Indication Minimum value
COM AMPLITUDE
BRIGHT GAIN
COLOR GAIN N
COLOR GAIN P
TINT N
TINT P
BLACK LIMITER
BRIGHT
APERTURE
R SUB BRIGHT
B SUB BRIGHT
W PEAK LIMITER
GAMMA1
GAMMA2
CONTRAST
R SUB CONTRAST
B SUB CONTRAST
VCO FREE RUN N
VCO FREE RUN P
PLL STOP POS
V POSITION
H POSITION
PWM FREQUENCY
BRST CLN PLS POS
PWM DUTY
COM DC
DC OUTPUT
R/W CHROMA 2
1. Set the service mode 4.
2. Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] button.
3. Change data with the [B.SKIP]/[F.SKIP] buttons.
4. Write data with a [OK] button.
Indication Minimum value
H POSITION
V POSITION
HDO POSITION
BRIGHT
R BRIGHT
B BRIGHT
COMLEVEL M
COMLEVEL E
COMDC M
COMDC E
VCO N
VCO P
Maximum value Initial value
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0x7F 0x40
0x00 0xFF 0x80
0x00 0x7F 0x40
0xFF
0x00 0x80
0x00 0xFF 0x80
0x00 0x7F 0x40
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0x0F 0x00
0x00 0x07 0x00
0x00 0x1F 0x00
0x00 0x0F 0x08
0x00 0x07 0x00
0x00 0xFF 0x80
0x00 0xFF 0x80
0x00 0xFF 0x80
Maximum value Initial value
0x00 0x1F 0x10
0x00 0x0F 0x08
0x00 0x1F 0x00
0x00 0x7F 0x40
0x00 0x7F 0x40
0x00 0x7F 0x40
0x00 0x1F 0x10
0x00 0x1F 0x10
0x00 0x3F 0x29
0x00 0x3F 0x32
0x00 0xFF 0x80
0x00 0xFF 0x80
0.01 (kHz).
0.01 (kHz).
Production jig initial value Reference register value
0x80
0x80
0x5F
0x62
0x82
0x80
0x5E
0xA3
0x40
0x88
0x88
0x7F
0x80
0xFF
0x64
0x74
0x78
0x8C
0x89
0x08
0x02
0x1F
0x08
0x03
0xFF
0x80
0x65
Production jig initial value Reference register value
0x12
0x08
0x02
0x4D
0x3E
0x40
0x09
0x10
0x33
0x32
0x70
0x76
Service mode
Service mode
0x80 Fix
0x80 Fix
0x60 Adjust
0x62 Adjust
0x6D Adjust
0x80 Adjust
0x5E Fix
0xA3 Adjust
0x40 Fix
0x88 Adjust
0x89 Adjust
0x7F Fix
0x80 Fix
0xFF Fix
0x65 Adjust
0x71 Adjust
0x74 Adjust
0x8F Adjust 15.62 kHz
0x8B Adjust 15.73 kHz
0x08 Fix
0x02 Fix
0x1F Fix
0x08 Fix
0x03 Fix
0xFF Fix
0x80 Fix
0x43 Adjust
0x13 Adjust
0x08 Adjust
0x02 Fix
0x4E Adjust
0x3E Adjust
0x41 Adjust
0x08 Adjust
0x10 Fix
0x31 Adjust
0x32 Fix
0x61 Adjust
0x69 Adjust
(No.MA165)1-37