AIWA CRSP66
Instrukcja Serwisowa

IC DESCRIPTION IC, TC9318FB-029
Pin No. 1-3 4-18 19-26 27-30 31-34 35 Pin Name COM1-3 S1-15 S16/KR7-S23/KR0 K0-K3 T0-T3 BAND 0 O 36 37 38 BAND 1 MW TV-ENA 9K/10K I I L L H: TV band available, L: TV band not available. 9K/10K switching input which selects the number of steps for the AM band. H: 9kHz, L: 10kHz. Area inputs. 39 E0 I 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58, 59 60 61 62, 63 64 E1 1 NC HOLD KG/YARD BATT/VOLT STEREO ALARM MUTE TEST
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IC BLOCK DIAGRAM IC, TA8158F
I/O O O O I O Description Common signal outputs to the LCD panel. Segment signal outputs to the LCD panel. Segment signal outputs/key return signal outputs to the LCD panel. 4-bit inputs for key matrix. Timing signal outputs for key matrix. Band outputs. Band FM TV WE BAND 0 L H BAND 1 H L

E0 0 0

E1 0 1 *

Area Japan USA Europe * Do not care.

IC, TA2111FN

� I I I I O O I I I O � I I � I O/I �

Not connected. Key hold input.�L� input inhibits key inputs. H: Meter KG system, L: Yard/pond/mile system. Battery voltage detection. Stereo input, �L� input causes the STEREO indicator to light in the LCD. Alarm output. Muting output. Test input. Inhibits: controls the radio on/off. IF counter input. PLL phase comparator outputs. Ground. FM programmable counter input. AM programmable counter input. Power supply. Device system reset signal input. For the connection of a 75kHz crystal oscillator. Power supply of the crystal oscillator. For the connection of a capacitor which stablizes the power supply.

HOLD IFIN/IN DO1/OT DO2 GND FM IN AM IN VDD
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IC, CXA1622M

RESET X OUT, X IN V XT V LCD C1, C2 VEE

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For the connection of capacitors which double the voltage to drive the LCD. 1.5V regulated power supply which drives the LCD. For the connection of a capacitor which stablizes the power supply.

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9

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