1-38 (No.MB160)
5.2
Tuner malfunction (FM/AM) : COMMON
Main board
CW102 pin No.2, 9V
Voltage normal?
ICO1(LV23000)
of tuner board,
Tuner BAND Switching?
(pin29)
Check the Main board
EZD02
No
Yes
Check the Tuner board
ICO1(LV23000)
pin 15,16,17,18
Check the Front board
UIC1 (micon).
No
ICO1(LV23000)
VT Level Changeable?
(pin28)
Yes
Check the Front board
ICO1(LV23000) Oscillator
XTAL (75kHz)
No
ICO1(LV23000)
If input normal?
(pin 1,4)
Yes
Check the Tuner board,
FM pack,MW OSC,
MW ANT.
No
Yes
Check the Main board
EIC01(TDA7442D) Function IC
Содержание CA-MXGB5
Страница 45: ... M E M O ...
Страница 46: ...2 1 Wiring diagram ...
Страница 47: ...2 2 ...
Страница 50: ...2 5 Standard schematic diagrams Main section MX GB6 ...
Страница 51: ...2 6 Parts are safety assurance parts When replacing those parts make sure to use the specified one ...
Страница 53: ...2 8 safety assurance parts placing those parts make se the specified one ...
Страница 54: ...2 9 Main section MX GB5 ...
Страница 55: ...2 10 Parts are safety assurance parts When replacing those parts make sure to use the specified one ...
Страница 56: ...2 11 Parts are safety assurance p When replacing those parts sure to use the specified on Amp section MX GB5 ...
Страница 57: ...2 12 arts are safety assurance parts hen replacing those parts make re to use the specified one ...
Страница 58: ...2 13 FL Key control section common ...
Страница 59: ...2 14 ...
Страница 60: ...2 15 CD section common ...
Страница 61: ...2 16 ...
Страница 62: ...2 17 Printed circuit boards Main board ...
Страница 63: ...2 18 Amp board ...
Страница 64: ...2 19 Front board ...
Страница 65: ...2 20 CD board ...