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Commodore 1701 Service Manual

Commodore 1701 Manual Online:

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Commodore 1701 User Manual
Commodore 1701 User Guide
Commodore 1701 Online Manual

Text of Commodore 1701 User Guide:

  • Commodore 1701, 1701 Board Layout r ;U0.60 R-<:3 1~ E T201 I DL201 I ~ !: 1 ~ I o~ O.O,,? ~ ~OoJ B ) L ~ '" NO R204 O n -----.r,.,";5. • .r-------c 'W 3 C :e=:::>- 0 ; ,c' 250 _ c,s> 0 ~1 ° ~~~~O ~~~ono.~o~ ~1 .:;:; 1~;; O~ C-~o::,. ~ :,~~ ~ -s.. !,l, 0 0 -c::::::r - '~202 -e:r ""'0 n -. -c::::::r. ~~oo ... 9 W44 oft ~. ~ V XS01 (])C509 <::> R526 --1 t- W43 R510 ~R506 TS01 )C515 ~523 ( ORN ORN 54 53 52 ~J CS21 ~ ( ( L502 L 0 ( ;u <!! ~

  • Commodore 1701, e AUDIO Y (CHROMI- NANCE) C (LUMI- NANCE) AUDIO VIDEO L~ ~J r;:l F R F 6 I i-+81 0 ,.... I I R -0 - .............. 1 ;J SIGNAL SELECT S R 0) 0 '-' F <"-~ "- " I e 1701/1702 BLOCK DIAGRAM !AUDIO AMP! It r-::UTPUT &. DRIVE I I 3.58 f-"o 3.58 TRAP SW TRAP ~ DELAY VIDEO BUFFER VIDEO AMP. &. SYNC. SEPARATOR I BUFFER l BP AMP. KILLER I CONTROL I iii i I i I I I I I I I VIDEO I Y AMP. I 1 SUPER SCREEN I CONTROL COLOR e fll. r---c; >< ~ irE r--- I- C ::E F: FRONT R: REAR BUFFER JSANDPASS}-

  • Commodore 1701, HORIZONTAL OUTPUT CIRCUIT xo1 r\orizonto.\ outpu.t -open: 1"0 y~ste.'r hO sound C$12,C~J3,CSI4 C 530,C.531 ~ LS02,RSZ8 I HOl"iZDnta\ linearity Ic.orrect ion coi I a.nd Ido.mpil'\~ resistor ,.--- R~6,Rs-17 ---, For beam limiter detection :- cSlq I R~26,cS-20 ; Sh'\ooth ..... ~ T 5"0 \ ------, \-\or il.O""o. \ dyive 1vo.nsf. . open. 1- 1'10 yA steY" L rt . no SOU Y\d. 'sno r--- COl -----., "Prevention of unwll"\,ted ,(Cldio:tion Resohance condenser for FBT · opel'\ :horizonta\ width is small .\. Lt:102 op~n: sin<;Jle vertical

  • Commodore 1701, Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part numbers (C314-xxx-xx) will be available from Commodore at this time. LOCATION DESCRIPTION INTEGRATED CIRCUITS IC1201 IC1301 IC1501 IC1601 TRANSISTORS X1101 X1202 X1250 X1301 X1351 X1352 X1401 X1402 X1501 X1601 X1602 X1603 X1701 DIODES 01201 01202 01203 01301 01302 01401 01402 01405 01503 01504 01505 01506 01507 01508 01601 01701 Ze

  • Commodore 1701, • 1'10 piduye T30i ---, BP take~off transf. ,---- c302 Br-~~ conQenser .open: colD\" beccmcs $rk 'short; no color R!oi---., Dumpi~ ~is~nce "open :c%Y error 4Vp-p C303 N:.c smoomlnj • open : no ~clor R3,-3 Emmire~ ~ ... -tGn~1e - C3 0 4- Cou~in3 Cl)ndens~r .open: hD coloy "sheet: no picture. c30S --..., K i \l~ smocil\,'i . .:yw "\: ltO ~Ior 's~rt\ C304i:C305 180 -.45/50 R328 1M R302.R303 Co\Oy c:orrec.tloh (bleeder feS'StllllC~) color i~ 'R3Dl open: faint 'R303 nDf!Tl: color is ·r _ .. dink R304, R3D

  • Commodore 1701, CHROMA OUTPUT CIRCUIT ~ RI23,RI'2.2.RI24 ___ ..... X\ot ~~ . bl",e ©~ShOTt yo.ster ®~short no blu.e ope.n Yo..steY" RI2S',RI26.RI2.'1 u,r.a.t YeSistanc.e of base 'RlZS oren : ho b",\e raster ·~1'2.6, open.; no ~~e!l. r~ster -RlzCf open! \10 ye.d rtlstl!:r "R12.1. RIO'L Rill D-r,ve adju5tm€:.nt ·RI2.1 opm: no biue Y'Ct5ter 'Rlo9 0pen;ho red raster ' RII! open: i'\o ~l"een raster x 10Z XI03 Rill, R1I3 . RI14 ----. RIIS.Rllb,RII'1---. L103.Llo2., LI04 nd ~reen Olltput Tr colle.ctor ioad resister

  • No picture (no raster) with normal sound NOTE: 1702 locations are in ( ). [Cause] Malfunction of the video amplifier IC201, X202 (lC201, 0201) The video signal and the audio signal output are supplied respectively to the video amplifier IC20 1 and the audio circuit IC601 . Sound is had but no picture; therefore, the faulty

  • Commodore 1701, r--- C 402.- VertiCllI osc.lllcrtor condenser 'll,pett}:OI'Ily sit'l'jle ·shOrt horizontoJ line r---R403.R404 ---------, r- v40S V~'rtic(ll oscIIIa.tor bia.s circ.uit A nsoYb of Q, bhOYm~( 'R403 open: only Si~1e horizontcll lihe. V()1+~<je -R.40+OP~": when 'J HOLD VR is ttlrhed.. V. BLK I H. OSC, V. OSC & V. OUT CIRCUIT I r- R416,C40~ . R4Ig r-- CS'OI ---~==:::::~"'--I b~Qck bo.hd ""ill a.ppeo.\"', o.nd scree" .--R402., C40S --.:/ _______ -, r FR4-0i • cA-!&

  • Commodore 1701, Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part numbers (C314-xxx-xx) will be available from Commodore at this time. CONTROL PCB ASSEMBLY #GE-4000A LOCATION DESCRIPTION JVC PART # VARIABLE RESISTORS R4003 Tint, 10K CEX40206-B14 R4004 Color, 10K CEX40206-B 14 R4006 Cont, 10K CEX40206-B 14 R4012 Bright, 10K CEX40206-B 14 R4015 V Hold, 10K CEX40205-A 14 R4016 H Position, 500 CEX40205-B52 R4022 Sub Bright, 4.7K OVZ3507-472 R4024 Volume, 200K CEX40205-A25 *SAFETY COMPONENTS - Use EXACT replacement ONLY. FUSE PCB ASSE

  • Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part numbers (C314-xxx-xx) will be available from Commodore at this time. POWER PCB ASSEMBLY #GE-9000A LOCATION DESCRIPTION JVC PART # TRANSISTORS X9101 X9102 DIODES 09101 09102 09103 09104 0910S RESISTORS R9103 R9104 R910S R9108 R911

  • Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part number (C314-xxx-xx) will be available from Commodore at this time. 1702 CHASSIS PARTS LOCATION DESCRIPTION JVC PART # COM PART # DY01 Deflection Yoke * CJ26161-00A J1821 US Pin Jack Vid In C39207-004 J1822 US Pin Jack Aud In

  • SAFETY PRECAUTIONS 1. This product contains special designed circuits and components that were designed for safety purposes. For continued protection, changes should not be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by

  • Commodore 1701, TROUBLESHOOTING GUIDE No raster, no sound (B1 is normal) NOTE: 1702 locations in ( ). [Cause] Horizontal deflection circuit Problems in the horizontal deflection circuit hinder generation of high focusing voltage, BH 160V and B2 12V, resulting in no raster, no sound. 1. As long as normal BH 160V is generated, the horizontal output circuit properly operates, pro- ducing pulses during the flyback period of the saw-tooth wave current passing through the horizon- tal deflection coil. If a problem is found with normal BH voltage, the problem area should be the second

  • Commodore 1701, Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part numbers (C314xxx-xx) will be available from Commodore at this time. CONTROL PCB ASSEMBLY #GE-1003A (4/6' LOCATION DESCRIPTION VARIABLE RESISTORS R1854 Cont, 10K R1860 Bright, 10K R1863 Sub Bright, 4.7K R1866 Tint, 10K R1869 Color, 10K R1871 Volume, 10K R1875 V. Hold, 10K R1877 H. Position, 1 K MISCELLANEOUS L1851 SW1821 J1821 J1822 Peaking Coil, 820 pH Slide Switch (Signal Select) US Pin Jack (Video In) US Pin Jack (Audio In) JVC PART # CEX40206-B 14 CEX40206-B 14 aVZ3

  • Commodore 1701, GENERAL DESCRIPTION C1701/C1702 COLOR MONITORS PRODUCT SPECIFICATION The C1701 and C1702 are quality, high resolution color monitors, designed to maximize the video capabilities of your Commodore Computer. They give you a superior color picture that enhances your computing experience and are completely compatible with all Commodore equipment. SCREEN SIZE 13 Inch (screen measured diagonally). NTSC color standard DISPLAY 40 Columns x 25 lines RESOLUTION 1000 Characters per screen CONTROLS Color, tint, brightness, contrast, volume, vertical hold

  • Commodore 1701, Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part number (C314-xxx-xx) will be available from Commodore at this time. MAIN PCB ASSEMBLY #GE-1000A (Continued) LOCATION DESCRIPTION JVC PART # COM PART # CAPACITORS (Continued) C1513 Metalized Polypropylene, 1500 pF, 1600V, ±5% OFZ0082-1525 C1514 Metalized Polypropylene, 1500 pF, 1600V, ±5% OFZ0082-1525 C1515 Metalized Polypropylene,

  • Commodore 1701, Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part numbers (C314-xxx-xx) will be available from Commodore at this time. 1701 CHASSIS PARTS LOCATION DESCRIPTION JVC PART # COM PART # OY01 Deflection Yoke * CJZ6134-00A J01 Pin Jack Vid In C39Z27-224 J02 Pin Jack Aud In C39Z27-223 L21 Oeg. Coil * A39477-T R05 Nonflammable Res. 220 ohm, 25W, ±10% * QRF258K-221 S01 Power Switch * CEX40097 -002 SP01 Speaker EAS-10P225S T01 Power Transformer * CE30074-BOA T502 HV Module * CJ26107-22A V01 Picture T

  • Commodore 1701, SAFETY PRECAUTIONS (Continued) 8. ISOLATION CHECK (SAFETY FOR ELECTRICAL SHOCK HAZARD) After re-assembling the product, always perfrom an isolation check on the exposed metal parts of the cabinet, screwheads, cable jacks, controls shafts, etc., to be sure the product is safe to operate without danger of electrical shock. (A) DIELECTRIC STRENGTH TEST The isolation between the AC primary circuit and all metal parts exposed to the user, par- ticularly any exposed metal part having a return path to the chassis should withstand a voltage of 1, 100V AC (r.m.s.) for a

  • Commodore 1701, Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part number (C314xxx-xx) will be available from Commodore at this time. CRT SOCKET PCB ASSEMBLY #GE-1003A (3/6) LOCATION DESCRIPTION TRANSISTORS 01351 01352 01353 DIODES 01351 RESISTORS R1357- R1359 R1360- R1362 R1378 Silicon Oxide Metal Film, 12K Composition, 3.3K ZN VARIABLE RESISTORS R1352 R1354 R1356 R1369 R1371 CAPACITORS C1351 C1352 C1356 B Cut Off, 5K R Cut O

  • Commodore 1701, Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part numbers (C314-xxx-xx) will be available from Commodore at this time. MAIN PCB ASSEMBLY #GE-1003A (Continued) LOCATION DESCRIPTION DIODES (Continued) D1701 D1702 RESISTORS R1414 R1421 R1511 R1523 R1526 R1530 R1531 R1532 R1534 R1551 R1607 R1701 R1702 R1705 Zener Oxide Metal Film, 1000, 1W, ±5% Metal Film, 1.50, 2W, ± 5% Oxide Metal

  • Commodore 1701, R04tRO~ Colo.,. contT'ol 'Ro~ 'fen: COLOR VR does not functlon. Rot.R02 . R03 Tint c.chhol 'ROI open} . L.~_ I • red IJ<;YJIY\4t s 'ROl!fen . ,,"Q~entct ROb. RO'7.KD& Cmb-a.st CDhtrcl 'Ro'! open ;VR does hot functiol\ when c.ontrast is stT'O~ RO'i.RIO _.----, BI'!eaer 'rl!~istlln(e 'RO~ 'fen: no raster ·RIO epe" : scree", becomes abnOT"lhllily bT&a

  • Commodore 1701, Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com- modore part numbers (C314-xxx-xx) will be available from Commodore at this time. CRT SOCKET PCB ASSEMBLY #GE-3000A LOCATION DESCRIPTION TRANSISTOR X3101 X3102 X3103 RESISTORS R3112 R3113 R3114 R3115 R3116 R3117 Silicon Silicon Silicon Oxide Metal Film, 12K, 2W, ±5% Oxide Metal Film, 12K, 2W, ±5% Oxide Metal Film, 12K, 2W, ±5% Composition, 3

  • Commodore 1701, ADJUSTMENTS - PURITY, CONVERGENCE AND WHITE BALANCE PICTURE TUBE The picture tube is a precision in-line gun type. For this picture tube, dynamic convergence is carried out by a preci- sion deflection yoke which eliminates the use of a con- vergence yoke and a convergence circuit. The adjustment of the picture tube is therefore made easier as only the ad- justment of static convergence by using a magnet is enough. The deflection yoke and purity/convergency magnets assembly has been set at the factory and requires no field adjustments. However, should the assembly be accidentally jarred or tampered vyith, some or all adjustment may

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