Panasonic AJ-D610WBP - 12-5.Playback Error Rate Adjustment

ELE-46
12-4. 1+D Adjustment
BOARD
RF
TP
EYE PAT (50 ohm terminated)
HSW (Trigger)
ADJUST
EVR
MODE
PLAY
TAPE
VFM3580KM (NTSC)
VFM3680KM (PAL)
M. EQ.
Spectrum Analyzer, EVR
SPEC.
A = 20.93MHz +/-0.1MHz
EVR Setting
COM:[02] DATA:[C4] ADR:[0E] (EQ_DL)
1. Connect a B.E.R. counter cable to P4.
2. Playback an alignment Tape.
3. Connect a Spectrum Analyzer to EYE PAT, and
adjust EVR(EQ_DL) by
[
←
←←
←
]/[
→
→→
→
]
keys so that the
Notch part frequency is in the specification.
*If it is out of specification, set the EVR data to "00" and
repeat the above adjustment.
<Spectrum Analyzer Setting>
Center Freq. : 20.93MHz
Span : 10MHz
dB/DIV : 5dB/DIV
RBW : 100kHz
VBW : 300Hz
12-5. Playback Error Rate
Adjustment
BOARD
RF
TP
VIDEO OUT
LCD (Error rate Display)
ADJUST
EVR
MODE
PLAY
TAPE
VFM3580KM (NTSC)
VFM3680KM (PAL)
M. EQ.
Monitor TV
SPEC.
Error counter : 10 Bars or less
Menu Setting
PAGE: DESIGN
BER_ADJ : Rch
BER_SPEED : FAST
PAGE: SERVICE ADJ
OUTER_ECC : OFF
EVR Setting
COM:[02] DATA:[90] ADR:[07] (EQ
α
αα
α
L)
COM:[02] DATA:[90] ADR:[08] (EQ
α
αα
α
R)
COM:[02] DATA:[35] ADR:[09] (EQ
β
ββ
β
L)
COM:[02] DATA:[35] ADR:[0A] (EQ
β
ββ
β
R)
COM:[02] DATA:[66] ADR:[0D] (PLL SL)
COM:[02] DATA:[9E] ADR:[0F] (PLL POS.)
COM:[02] DATA:[CC] ADR:[10] (AUTO EQ)
1. Playback an alignment Tape.
2. Connect VIDEO OUT to a monitor TV and adjust
PLL_SL / PLL_POS. / EQ_α_L / EQ_α_R /
EQ_β_L / EQ_β_R by EVR
[
←
←←
←
]/[
→
→→
→
]
key so that the
error rate is minimum on the monitor TV and LCD
error rate meter. Repeat this adjustment until the
error rate is in the specification.
*Refer to 9-4. BYTE ERROR DISPLAY for LCD
display reading.
A
Freq.
Gain