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PDF Contains
Technical Data, Mechanical data, Detailed Circuit diagram with components value, PCB layout. Actual PCBs Print. Component List, Spare parts code list and Input output detail. It cover LBB1211, LBB1212, LBB1213, LBB1216, LBB1217.
It is the actual Service Manual for SQ10
Pin No. 33 34-50 51 52 53 54 55 56
Pin Name XOUT ADD16-ADDO CR VDD RASB CASIB CASOB CEIB
I/o o o
Description Crystal oscillator connection output terminal. Externally connected sound memory (ROM/RAM) address output terminals. (Pins 41-44 not used.)
CR oscillator terminal. CR oscillator frequency= 600 kHz (typ). (Not used) � Power supply terminal for digital citcuitry (+). Externally connected sound memory (ROM/RAM) column address strobe, o chip enable, row address strobe, and address output terminals. (Depends on the status of terminals MEMO to MEM3.) (Pins 54-55 not used.)
o o o
I/o o � o
Externally connected sound memory (sub-memory (2). lM bit SRAM) chip enable output terminal. (Not used) Extemrdly connected sound memory (sub-memory (1)= lM bit SRAM) chip enable output terminal. (Not used) Externally connected sound memory (RAM) write enable output terminal. Externally connected sound memory (ROM and RAM) data input/output terminals. A/D converter overflow signal output terminal. (�H�: Overflow, P-channel open-drain output.) Power supply terminal for the analog circuitry (+). D/A converter output terrninrd. (PDM waveform shown below is output.) 6 T.. VDD DAOUT Ov � a Unit data n jT.. VDD� Logic �1� Ov m! foscx (Crystay oscillator frequency)= 18.432 MHz T = 61foscx = 325.5
~S.
57 58 59-66 67 68 69
CEOB WEB D7 -DO ALc VDDA DAOUT
T
2T
,,:
2T
~
~� / /. a Unit data x & ; VDDI Logic �O� ~ ov~ 2T j
Tj �
70
VREF
I/o
Built-in analog circuitry bias voltage terminal. (Connect a capacitor between this terminal and the VSSA terminal (pin76).) Built-in op-arnp 2 output terminal. Built-in op-arnp 2 inverting input terminal. AID converter input terminal. Built-in op-amp 1 output terminal. Built-in op-amp 1 inverting input terminal. Oround terminal for analog circuitry.
71 72 73 74 75 76 77 78-80
MC02 MC12 ADLN MCOI MCI1 VSSA Vss TST2 - TSTO
o I I o I
� I
Oround terminal for digital circuitry. Test terminals. (Normally, set these terminals to �L� or leave them open.)
�19�
 $4.99 ICM60 AIWA
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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