– 17 –
VIDEO SECTION
Frequency adjustment
1. Connect the frequency counter to check point of the VIDEO
board.
2. Adjust CT503 of the VIDEO board so that the frequency counter
read 27MHz ± 80Hz at STOP condition.
[ VIDEO BOARD ] – SIDE B –
Adjustment Location :
[ VIDEO BOARD ] – SIDE A –
frequency counter
VIDEO board
(27 MHz)
+
–
SL501
IC502
IC506
(27MHz)
(GND)
SL502
SL503
TEST
MODE
SL501
D502
SL502
CT503
SL503
TEST MODE
VIDEO
FREQUENCY
(27MHz)
(GND)
IC507
IC505
Adjustment Location :
[ BD BOARD ] — SIDE B —
TP
(VC)
TP
(RF)
TP
(TE)
TP
(IOP)
TP
(FE)
TP
(AGCCON)
Содержание HCD-VX90AV
Страница 8: ... 8 This section is extracted from instruction manual ...
Страница 26: ...HCD VX90AV 7 3 PRINTED WIRING BOARD BD SECTION See page 18 for Circuit Boards Location 33 34 Page 42 ...
Страница 28: ...HCD VX90AV 7 5 SCHEMATIC DIAGRAM DECK SECTION See page 79 for IC Block Diagrams 37 38 Page 53 B ...
Страница 44: ...HCD VX90AV 7 23 SCHEMATIC DIAGRAM FRONT AMP SECTION 69 70 Page 57 Page 52 Page 68 Page 77 ...