Sharp MZ-1TOl Manuel d'utilisateur

MZ-700 SERVICE MANUAL -r' ... .. SHARP INDEX CODE: OOZMZ700SMI/E PERSONAL COMPUTER MOD

CUSTOM LSI < YTl > 1. BLOCK DIAGRAM CRT Control LPHI 0 J I l-{ NTPL AO A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 0 0 (' -9 0 0 0 0 0 0 0 Eh H COLR 1/2

Memory Management (1) IORN A1 A2 A3 A4 A5 AS A7 AO WRN A15 A14 A13 A12 MRQN RFSN RDN PHI A11 A10 A9 AB ,... " 0 ~ 0 0 0 ." 0 " 0 -"

Memory Management (2) PH111 WRN MRQN RDN LPH1 NTPL CL GATE VCC GND 0 0 0 0 Colour VRAM (VRAM-2) CAS circuit 1/4 • MZ-700 colour infonnation is manag

a) Signals around the 8255 The 8255 Programmable Peripehral I/O Controller assumes the control of the cassette recorder, CRT screen cursor Po

1-o1 .. _--464~-__ ... II.oo ... _-49 .• 4j.1S----I .. -+oI ... 240~-'-264~'" , I "I I I I , ;.' ______ _ I CASE1 LONG

c) Keyboard controDer The 8255 writes strobe (key scan signals) on PA and reads key data from PB. The table shown below is the key map. d

5. DATA RECORDER 5-1. Data recorder (MZ-lT01) Data transfer with the recorder is carried out via the 8255. The read data is sent out through the

I iv1Z 700 Troubleshooting procedure Phenomennon CD: Motor and tape do not rotate, when the PLAY button is pushed. Check if M+ and M·5V are in supply.

Mechanical adjustments RECORD/FAST FORWARDjREWIND torque measure-ments 1. Set the torque measuring instrument on the cassette tape recorder.

MZ~700 Cassette recorder waveforms Primary stage amplifier output wavefonn Operational amplifier input wavefonn Operational amplifier input wavefonn C

~\~Z~ 700 1. SPECIFICATION 1-1. MZ-700 CPU Oock(ct» Memory Video output Screen structure Color designation Music function Timepiece function Keyboard

~\;1Z 700 5-2. External recorder playback circuit When the external recorder is used, connection is made with the 8255 by shorting P-12. In th

7. MICRO COlOR GRAPHIC PRINTER 7-1 Micro color graphic printer 1) Block diagram H H Con-Buffer nectar ~ rr-(1) At power on / I' \ , Intelligen

2) Pen exchange method To remove pen, press the pen exchange button, when the slider is at the right handside, push the pen release lever.

, MZ--700 [COLOUR PLOTTER PRINTER CONTROL LSI] Pin assignment Symbol Name In/out Function Vss Ground Connected to QV. Vcc Main power Connected to SV.

,Q 700 7-2. Interfacing with the MZ-700 Fig. 1 shows the block diagram for connection with the printer. Fig. 2 shows its circuit descript

8. POWER SUPPLY Power supply circuit description (1) AC source power is rectified through the diode bridge (RB-156). (2) Current flowing through

Waveform CD Waveform CID Waveform@ "1 320V -------ov _____ ""'lov 2·2. When extremely low output voltage is encountered I If Wavef

2-4. Abnonnal increase of output ripple In case irregular increase is seen for the output ripple like the one below, it needs to replace C22

9. le SIGNAL POSITION 74LSOO 74LS02 74LS14 7417 5A 5Y IY 2A 2Y 3A 3Y GND lA IY 2A 2Y 3A 3Y GND 74LS42 7472 VCC PR K3 K2 NC CLR JI J2 J3 GND 74LS1

74LS166 74LS246 74LS367A VCC G2 5A 5Y 4A lA IY 2Y 3A 3Y GND 74LS174 I CLEAR IQ ID I I CLEAR IQ 74LS273 BD 70 74LS176 OUTPUT IQ ID 2Q 3Q 28 2Q GNO

2. NAME OF FUNCTIONAL COMPONENT MZ-700 Front view Main kev board -----' MZ-700 Aeer view Channel switch RF terminal BrN-Colour switch Composi! t

MZ-700 . 10. CIRCUIT DIAGRAM & PARTS LAYOUT 29

Co.) C EXRESET ,---. "'0 RI07 ICCH '0' IK LSOO 10r-" .J /0 "" ~, 220 C24 1),I/50V 10--5V IC CH LSOO " "

Co.) 0, 21 07 O. OB 00 0' >--.. 0' o. 0' 0, 0, D. tiiA ' RO II1W WR AI AI Ao' • Ao c:sEO~CS 8255 ;'s RESET RESET ,o

~ IV 0 , T "1 ClO S!fIIIIY Tantalum Iv 0 "' 5v 0 "I 5v 0 "1 5V 0 "'" 5 V 0 "' 5 V 0 "I 5V 0

Co) Co) for 4KB ROM le BD ~I D'~ I. D'~ " D.~ 0= D'~ D. >----.! I. . , Dz -.-!. D, >----.! ,. Do >----.! 11 ;J1 , ,. iiD

p, p, P, P. '0 P, P.---" --B Pr ,. " p. c..:I p, .j:lIo p,o 07 5157 SYN CLK obe BLNK COLR HBU< SEl PoLOAD HSY NIP 03 Q2 Or ~ WA vEl.

w U'I I 2 3 4 5 6 7 8 9 10 11 12 13 14 15 P-I ARDP ARDI ARDz ARD3 ARD4 ARD5 ARD6 ARD7 ARDe AIRT GND ARDA GND ASTA ALPS P-5 I + 5V I 2 + 5 V , 3

I Power unit I SOl AC240V Lt:. " T500mA A. L' l.,L}, Z0040 Cl RBt56 RI C7 A\ T I 10/2W t~/(OD ~ ZOQ74 r%~~~----~--~ " e l!",F/&q

[Colour encoder circuit] '~f '00" -IOv .l o. le, U/81 co. ' .. • • ICICl/SII ~U/III ... • IClllIS, GII/III ... cc, H07"~P

[Motor P.W.B. unit] 4 --I\fIIv--~ Tri R6 [A()'IOO2j -MAIN PW8 .~. ". .. ~ [Rot.Sf HEAD RECOROI P\.AVBACK ><£40 -l$ i' .~ I 1 1 $&

~"q-700 3. SYSTEM BLOCK DIAGRAM ( CRT F.G A.C. sw 100V I~ -"" t t ~PO~UP' !II 0-5V MEMORY CONTRa. Fi p w R.G.B. I I PLY CIRC

[Data recorder circuit J J I I I ~ i. EI02IAC-33A o H + ~o N ~o '" o

.j::o o 4P 15P +5V (POW ER) 47~/IOV o GND +5V GND ARD ARD2 ARD3 ARD4 ARD ARD ARD ARD ARD AST ARD, GN GN AIR SEN + C3 o 3,; I. 4 k"~21-=-=-=-=-=-=

MZ-700 PARTS LIST & GUIDE Parts marked with" L1I" is important for maintaining the safety of the set. Be sure to replace these parts wi

MZ·700 rn CPU Unit Exteriors NO. PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 1 DUNTKl152ACZZ ** N E CPU PWB 2 DUNT-1150ACZZ BM N E Power su

MZ·700 rn CPU U~~t Exteriors I 28 , 7 I 20 P ~ 2 If ) / 19 I I I )

I2J Printer Unit Exteriors NO. 1 2 3 4 5 6 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 PARTS CODE CCABB1006ACZZ CFTAT1001ACZZ CSFTZ1001ACZZ N

MZ·700 IlJ CPU Unit Electronic Components NO. PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 1 QCNCMI009ACZB AA C Connector to Soeaker (2oin) 2

MZ·700 [3J CPU Unit Electronic Components NO. PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 81 VRD-5T2EY391J AA C Resistor (l/4W 3900 +5%)

MZ-700 [ID Power Supply Unit NO. PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 1 XBPSE30P08KSO AB N C Screw 2 PCOVS0181VAZZ AG N C Case (B)

4. SYSTEM DESCRIPTION 4-1. Memory map a) At power on $0000 $1000 $1200 $0000 $0800 $EOoo $FOoo MONITOR (ROM) MONITOR WORK SYSTEM and TEXT AREA (DRAM)

[ID Power Supply Unit 18 2 13------"~-_ _"'____tI 12----t--~~_~ 14 15~ 19 20 -7-MZ .. 700 4 6 16

MZ·700 [1J Key Board Unit NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ·22 23 24 25 26 27 PARTS CODE PRICE NEW PART RANK MARK RANK OCFD5

MZ·700 [ID Ca ssette Unit NO. PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 1 JKNBR0204AFSA AB N C Stop/Eject/Play/Rewind/F.Foward botton 2 JK

MZ·700 [ID Cassette Unit NO. PARTS CODE PRICE NEW PART DESCRIPTION RANK MARK RANK 81 P C U S F 0 0 1 8 A F 0 0 AB N C Cushion 82 HDECZ0063AFSA AA

[[] CASSETTE UNIT ~3 4~ ~ 1 .. I .-16 i/' I 33 11 11

MZ·700 -12-

MZ-700 • Index PARTS CODE NO. PRICE NEW PART RANK MARK RANK PARTS CODE NO. PRICE NEW PART RANK MARK RANK [C] MLEVFI441AFFW 8-33 AB N C CCABBI005ACZZ 1

MZ·700 PARTS CODE NO. PRICE NEW PART RANK MARK RANK PARTS CODE NO. PRICE NEW PART RANK MARK RANK QCNW-1048ACZZ 4-6 AN N C VCCSPU1HL391J 3-17 AA C QCNW

MZ·700 PARTS CODE NO. PRICE NEW PART RANK MARK RANK PARTS CODE NO. PRICE NEW PART RANK MARK RANK V R D-S T 2 EE 2 0 5 J 8-121 AA N C OCF3876C///// 7-1

MZ-700 SHARP * 1 11-185121\0 71931-100 S!MMZ700!lT&1POl 203 -250887!720g0700Q SHARP CORPORATION Industrial Instrument Group Reliability & Qua

~1Z -7CO At the time of manual reset (with I CTRL I in depression) $0000 $0000 SYSTEM ~ MONITOR -(ROM) $1000 $1000 SYSTEM $0000 $0000 V-RAM V-RAM $EOo

To read the contents of a VRAM character, the CPU sends out the relevant address. When RD is forced low, the data is then read via the bidirectio

\ ,'1Z -700 2) Memory controller In the MZ· 700, it needs to segregate the memory in order to acheive the above mentioned memory mappin

IV? 7ce 4-4. Memory controller (CRTC) circuit description The memory controller and the CRTC are contained in the single chip custom LSI (M60719). Me