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VC-A598U/H995U/H996U
-H997U/H9977U/H998U
MTS CIRCUIT ADJUSTMENT
(HI-FI MODELS ONLY)
5-4 ADJUSTMENT OF SIF-INPUT LEVEL
Measuring
AC milli-voltmeter and RF signal
instrument
generator.
Mode
E-E
Input signal
RF CH-10 (at 300Hz 30% MOD.)
Test point
AUDIO OUT jack (R channel)
Control
R142(S-IF ADJ.)
Specification
Right CH output Minimum
1. Feed the RF signal CH-10 (at 300Hz 30% MOD.) to
antenna terminal.
2. Connect the AC milli-voltmeter to right channel output
terminal.
3. Set the audio signal to 300Hz and the modulation facter
to 30% (Left channel only) and adjust R142 (S-IF ADJ.)
so that the right channel output becomes minimized.
5-5 ADJUSTMENT OF STEREO SEPARATION
Measuring
AC milli-voltmeter and RF signal
instrument
generator.
Mode
E-E
Input signal
RF CH-10 (at 3kHz 30% MOD.)
Test point
AUDIO OUT jack (R channel)
Control
R144 (SEPARATION ADJ.)
Specification
Right CH output Minimum
1. Feed the RF signal CH-10 (at 3kHz 30% MOD.) to
antenna terminal.
2. Connect the AC milli-voltmeter to right channel output
terminal.
3. Set the audio signal to 3kHz and the modulation factor
to 30% (Left channel only) and adjust R144 (SEPARA-
TION ADJ.) so that the right channel output becomes
minimized.
4. Repeat step 5-4 ADJUSTMENT OF SIF-INPUT LEVEL,
until obtain a specification.
INITIAL JUMPER SETTING METHOD
Effected Model:Model With VCR+Plus and VCR+Plus,C3 and G-CODE
1.E2PROM Jumper Setting:
1) Set the VCR in standby mode (Power Off).
2) Short circuit the test point (between pins 1 and 2 of TP801), which is located in the front side on the main PWB.
Be sure that all items in the fluorescent display tube light up into test mode.
3) Using Channel (+) and Channel (-), select the right jumper from JP0 to JP7, which appear in the fluorescent display
tube.
Press Display button to set the function ("1") and press Cancel button to set it as ("0").
* When press Display button, the jumper item will be blinking.
* When press Cancel button, the jumper item will remain there without blinking.
4) Repeat step 2), then plug off the socket.
Model Name
A598U
H995U
H996U
H998U
Bit
H997U
Jumper Name
H9977U
0
AUX2
1
1
1
1
1
HiFi
0
1
1
1
2
R/C Locator
0
0
0
1
3
Cable Box
0
0
1
1
4
C/C Cross Key
1
1
1
1
5
Auto Enhance
0
0
0
0
6
DST / EDS
1
1
1
1
7
G-Code
0
0
0
0
1= "Display blinking"
0= "Display remain"
Содержание VC-A598U
Страница 6: ...VC A598U H995U H996U H997U H9977U H998U 6 1 3 LOCATION OF MAJOR COMPONENTS AND CONTROL ...
Страница 51: ...VC A598U H995U H996U H997U H9977U H998U 51 8 BLOCK DIAGRAM POWER CIRCUIT BLOCK DIAGRAM ...
Страница 52: ...VC A598U H995U H996U H997U H9977U H998U 52 SYSTEM SERVO BLOCK DIAGRAM ...
Страница 53: ...VC A598U H995U H996U H997U H9977U H998U 53 ...
Страница 54: ...VC A598U H995U H996U H997U H9977U H998U 54 SIGNAL FLOW BLOCK DIAGRAM VC A598U ...
Страница 56: ...VC A598U H995U H996U H997U H9977U H998U 56 SIGNAL FLOW BLOCK DIAGRAM VC H995U H996U H997U H9977U H998U ...
Страница 61: ...VC A598U H995U H996U H997U H9977U H998U 61 13 12 11 10 9 8 7 ...
Страница 65: ...VC A598U H995U H996U H997U H9977U H998U 65 13 12 11 10 9 8 7 ...
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