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PART NO.

DESCRIPTION

CODE 

D319

D401

D403

D404

D405

0508,509,

D512
D513

 

 

 

 6,520,

D521

 

 

CF3

Tl

 

TC3
TC5

TC8

v c 1 . 2 .

Reverse Current

Prevention   

Reverse Current

Prevention 

 S2473)

FM Stereo Indicator

 Indicator

Zener. 

Zener, 

Switching, Built-in

Microphone/Power Amp
Muting (1 

Reverse Current

Prevention   

Suge Current Absorber

(1 OE-4)

Reverse Current

Prevention   

Power 

 OE-4FD)

FILTER

 

FM IF 

AM IF 

TRANSFORMERS

 57AFZZ

FM IF

 2AFZZ

FM Detector

 OAFZZ

AM IF

 Power Transformer

 Power Transformer

(GF-500)

COILS

Band Pass Filter
FM RF
FM Oscillator

 Antenna

 Bar Antenna

SW2 Oscillator

 Oscillator

AM Oscillator

 

Bias Oscillator

 4AGZZ

  C h o k e ,  

  D e c k  

Choke, 

 Deck 2

CONTROLS

 Trimmer, 

  A n t e n n a

 Trimmer, AM Antenna

 Trimmer, 

 Oscillator

 072AFZZ Trimmer, AM Oscillator

AA

AC

AC

AC

AB

AB

AB

AB

AB

AD

AE

AC
AC
AC
AV

AC
AA

AC
AD

AM

AC
AC
AC
AC
AC
AC
AB
AB

AC
AC
AC
AC

Variable 

 Tuning

with Trimmer

 RF

Trimmer

 Oscillator

AN

Trimmer

- 2 4

PART NO.

DESCRIPTIO

N

CODE

 

vc5

 

 

VR102

VR502

VR503

VR504

 Antenna

Trimmer

 Oscillator

Trimmer

Fine 

AE

 

 ohm(B), V.C.O. Adjust 

 

  T o n e

Control

5 0 K  

 Balance AM

Control

20K 

 Volume

 

  o h m ( B ) ,  

  H i g h   A C

Speed Adjust

 

 ohm(B), Deck2 High AC

Speed Adjust

  2 0 K   o h m ( B ) ,  

AC

Normal Speed Adjust

 20K ohm(B), Deck2

AC

Normal Speed Adjust

ELECTROLYTIC CAPACITORS

Unless otherwise 

 electrolytic 

 are 

 type.

Cl 65.167,
Cl 68

C42
c44
c47

c77
C78
C81

Cl 19,120
Cl 23,124
Cl 27,128
Cl 31   32
Cl 35
Cl 36

 

 

 

 

 A

 

 

 A

 

 

 

 

 50V

 

1 MFD, 50V

 

 25V

 A

 1 OV

RC-EZAI 

 

 50V

RC-EZAI 

 

 

RC-EZAI 07AFl A

 

 

 

 

 

 

 

  2 5 V

RC-EZAI 

 A

 OOMFD,   OV

 

1 MFD, 50V

 

1 OOMFD, 

 

 

  5 0 V

 

 

  2 5 V

 A

1 OOMFD, 1 OV

 

 16V

 OAFZZ

 OOMFD, 

 

 

1 OMFD. 

 

 

 MFD, 50V

 

 

Cl 

 

 

  5 0 V

RC-EZAI 

 

1 OOMFD, 

Cl 72

RC-EZAI 

 

 OMFD, 

 A

 

 A

 

C224

C273
C274

 

 

 

 21 OAFZZ

 OOMFD, 

 A

1 OOMFD. 1 OV

 07AFl 

1 OOMFD, 

 

 

 1 

 25V

 

 

 

IOMFD, 

 

 25V

 

 

RC-EZYI 

 

IOMFD, 

 

 50V

 

IOMFD, 

RC-EZYI 

 

 

 50V

A8
A8
A8
AB

A8
A8
A8
AB
AB
AB

A8
AB
AB
AB
AB

A8
A8
AB
AB
AB

AB

AB

A8
AB
A8
A8

A8

AB
A8
AB

AR

AB
A8

AB
AB

AB
AB

Содержание GF-500

Страница 1: ...TENTS SPECIFICATIONS 2 POWER SUPPLY VOLT iiLi i i 2 DIAL CORD STRINGING 2 NAMES OF CONTROLS 3 DISASSEMBLY 4 AUDIO BLOCK DlAikil 5 CIRCUIT CONSTRUCTION 6 APPS FLOW CHART 7 8 MECHANICAL ADJUSiM Efi 9 CHECKING OF AUDIO LOW FREQUENCY CIRCUIT lO SCHEMATIC DIAGRAM l Z Z Z 11 12 15 WIRING SIDE OF PRINTED WIRING BOARD l Z Z Z 13 14 16 SCHEMATIC DIAGRAM AND WIRING SIDE OF PRINTED WIRING BOARD AT POWER SUPP...

Страница 2: ...ne in 50K ohms 20K ohms Output impedance Headphones 8 ohms to 32 ohms External speaker 3 ohms to 8 ohms Line out 0 55Vl50K ohms RADIO Frequency range AM 525kHz to 1 605kHz SW1 2 3MHz to 7 3MHz SW2 7 3MHz to 22MHz F M 87 6MHz to 108MHz Specifications for this model are orior notice POWER SUPPLY The GF 500Z Unit will operate on an AC power supply of The GF 500 Unit will operate on an AC power supply...

Страница 3: ... 2 Record Button 25 Deck 2 Play Button 26 Deck 2 Stop Button 27 Deck 2 Rewind Review Button 28 Deck 2 Fast Forward Cue Button 29 Deck 2 Pause Button 30 Power Switch 31 Function Selector Switch 32 FM Mode Selactor 33 Deck 2 Tape Selector Switch 34 Deck 2 Record Muting Switch 35 Dubbing Switch 36 Dubbing Speed Selector Switch 37 Tone Control 38 Balance Control 39 Volume Control 49 APPS Set Clear Swi...

Страница 4: ...k cabinet one screw of the nine is found in the battery compartment 4 Disconnect two speaker sockets and one earth tip a Removal of Mechanism Block See Fig 4 4 1 Remove three screws from the mechanism block and the drive belt from the tape counter 2 Disconnect four sockets and detach the mechanism block a Removal of Main P W B See Fig 4 5 1 Remove two screws from the main P W B and pull the P W B ...

Страница 5: ...zl I I I a 5 I I I t l I I I I I I I i _ _____ T j 211 Figure 5 BLOCK DIAGRAM 5 ...

Страница 6: ... know is to automatically detect an end of the program when the unit is in fast forward or rewind mode and then to return it to play mode The APPS employed for the GF SOOH E is something new which is based on the same ideas as with such APSS and it is activated not only when the unit is in play mode at the deck 1 only but also when it is in dubbing mode from the deck 1 to the deck 2 In the dubbing...

Страница 7: ...dicator D314 lights up The red indicator is still lit at the time SW201 is turned on Syncronous operation of Deck 1 and Deck 2 is EL With Deck 2 in stop or play mode or with the dubbing switch turned off I The motor of Deck 1 gets in a stop Deck 2 alone can be operated I stopped I No buttons for play mode ...

Страница 8: ...in APSS mode l APPS set clear switch is at The motor of Deck 2 is kept I set position in stop The yellow indica 1 l The motor of Deck 1 starts again tar D314 keeps on lighting The red indicator D302 is put off The motors of Deck 1 and Deck 2 start again The motor of Deck 1 starts again The indicators D302 and D314 are put off at The yellow indicator D314 is put off bl APPS all clear ...

Страница 9: ... so that the output frequency is 1990 to 2010Hz for the deck 1 and 1980 to 2000Hz for the deck 2 For Normal Speed Operation 1 Play a test tape TEAC Ml T 1 11 3kHz prerecorded 2 Adjust the semi variable resistors VR503 for the deck 1 and VR504 for the deck 2 located on the deck 1 and deck 2 mechanism P W Boards so that the output frequency is 2985 to 3015Hz on the wow flutter meter for both decks 1...

Страница 10: ...instruments as shown in Fig 10 2 2 Set the function selector switch to tape the volume control knob to lO max and the treble bass tone control knob to center position Test Tape MTT 118 3 Play a test tape TEAC M T T 1 1 8 IkHz 250pWb mm 1OdB prerecorded Head 4 See that the electronic voltmeter reads about 1 8V Figure IO 2 RECORD AMPLIFIER SENSITIVITY CHECK Phono input 1 99 3 9mV 1 Using a CR oscill...

Страница 11: ...PI01 2SAll43 Record Signal Microphone Signal ___ B Line APSS Signal Phono Signal 1 2 3 I 4 5 6 Figure 11 SCHE ll Q303 Q306 2SAlll5 F Q304 0305 2X2603 F P l a y b a c k S i g n a l Line in Signal H ...

Страница 12: ...I 7 8 9 10 11 12 I I I I I 1 0401 2SD471L IC204 IR2EOI lndlcator DrlVe 9203 2X2603 F I I I I s w Q503 Q504 258562 C B 9507 G5Oa Q509 0510 2SC2603F I I S C H E M A T I C RAM l Z 8 9 10 I 11 12 12 ...

Страница 13: ...I C I F I L I 1 E I _____ _ 1 2 3 4 5 6 A B G 1 I Z I 3 I 4 I 3 I tl I Figure I 3 WIRING SIDE OF F 13 __ ...

Страница 14: ...P VV 7BOARD 8 I 9 I 10 I 11 I 12 DE OF l Z 14 ...

Страница 15: ...1 I 2 I 3 I 4 5 6 3 i IC3 TA7313P PLL FM 3 4 I INPUT I II II I I II I 1 I I 3 I 4 I 5 I 6 Figure 15 SCHEMATIC DlAGRAM 2 2 15 ...

Страница 16: ...1 1 2 I 3 4 I 5 6 7 I L i 1 d IC401 2 4 Figure 1 6 WIRING SIDE OF P W BOARD 2 2 5 6 16 IA B C D E F G H 1 ...

Страница 17: ...ING SIDE OF PRlNTED WlRlNG BOARD AT POWER SUPPLY SECTION OF GF 500 I I r_ 2i3 4 5 6 50602 M oc I AC POWER SUPPLY CORD QACCL0050AFOO GF 5002 QACCZ0051AFOO GF 5002 QACCK0050AFZZ GFBOOZ QACCD005lAFOO GF 500 A B C D 2 3 4 5 6 I 17 ...

Страница 18: ...On Off 1 SW601 1 AC DC Selector Switch I A C D C I l The voltage in each part is measured with no signal given l As for the radio circuit the voltage indica tion without parentheses is in FM stereo mode and that with parentheses is in MWILWISW mode As for the audio circuit the voltage indica tion is in play mode at normal speed The voltage indication with parentheses for 0105 Q510 is in play mode ...

Страница 19: ...1 I 2 3 4 I 5 I 6 D BOTTOM VIEW E F G H TOP VIEW I 2 3 I 4 5 I 6 Figure 19 DECK 1 MECHANISM EXPLODED VIEW 1 19 ...

Страница 20: ...1 J 2 3 4 I 5 I 6 1 i BOTTOM VIEW TOP VIEW A 0 C D E F G H 1 I 2 3 I 4 I 5 I 6 I Figure20 DECK 2 MECHANISM EXPLODED VIEW 2o ...

Страница 21: ...7 I 2 3 4 5 I 6 1 2 3 1 4 I 5 I 6 Figure 21 CABINET EXPLODED VIEW 21 ...

Страница 22: ...1 2 3 4 5 I 6 A 8 C 2 D E F G H 1 2 3 4 5 6 Figure 22 CABINET EXPLODED VIEW 22 ...

Страница 23: ... 5OV f5 C M A A VCCCPVl HH181J 180PF CH 50V f5 A A CM1 c73 VCCCMFlHH270J 27PF CH 5OV 5 AA CM1 C74 79 80 VCTYMFI CY223N O O22MFD 16V 30 A A WI C84 VCCSMFlHL470J 47PF 5OV 5 C M A A 25 REF NO PART NO DESCRIPTION CODE C 8 5 8 7 8 8 VCTYMFlCY223N O O22MFD 16V c30 A A FCI C105 106 Cl 07 108 VCKYMFlHB221K 22OPF 5OV lO C M A A VCKYMFlHB391K 39OPF 5OV IO C M A A c109 110 VCNMFlCY223M 0 022MFD 16V fi20 A A ...

Страница 24: ...g AE RVR M0343AFZZ 5K ohm B V C O Adjust AB 100K ohm l5A T o n e Control RVR ZO137AFZZ 5 0 K ohm 73Z Balance AM Control 20K ohm 339Z Volume Controi RVR M0382AFZZ 5K o h m B Deck1 H i g h A C Speed Adjust RVR M0382AFZZ 5K ohm B Deck2 High AC Speed Adjust RVR M0383AFZZ 20K ohm B Deck1 AC Normal Speed Adjust RVR M0383AFZi 20K ohm B Deck2 AC Normal Speed Adjust ELECTROLYTIC CAPACITORS Unless otherwise...

Страница 25: ...H AG AE AG AR Switching Built in AB Microphone Power Supply 2SAl 143 Switching Equalizer AB 2SC2603 F Muting 2SC2603 F A8 Bias Oscillator AD 2SC2001 K ALC Improvement of AB Metal Mode 2SC2603 F APPS Circuit A0 2SAlll5 F Switching APPS Indicator AB AB D303 VHDlS2473 U AB AD D304 305 D306 I VHDl S2076 U AD AD 0307 308 D309 310 i VHDl S2473 1 D311 D312 313 VHDI S2076 il AD D314 RH PX1043AFZZ AD D315 ...

Страница 26: ...AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA AA REF NO R181 182 R314 315 R183 184 R316 317 R185 186 R187 188 R189 190 R191 192 R200 R201 202 R203 204 R205 206 R207 208 R209 2f 0 R211 212 R213 214 R215 R216 R217 218 R219 220 R221 R222 R223 R224 R225 R226 R227 R228 R229 R230 R231 R232 R235 R241 242 R243 244 R245 246 R247 248 R249 250 R251 R252 R253 ...

Страница 27: ... NBLTH0088AFOO 182 NBLTK0208AFZZ 183 NBLTK0228AFOO 184 NBRGC0079AFZZ 185 NBRGP0062AFOO 186 NFLYCOOSBAFZZ 187 NGERHOOBOAFOO 188 NROLY0044AFZZ 189 PGIDMOl 01 AFOO 190 PSPAA0055AFFW 191 QLUGPOl 11 CEFW 192 RHEDZ0055AFZZ 193 RHEDAOl OOAFZZ 194 RHEDF0075AFZZ 195 RHEDHOI 14AFZZ A0 AA A0 Bearing Capstan Bearing Flywheel Thrust Flywheel Gear P A D Cam Drive Pinch Roller Guide Cassette Spacer Motor Lug Ter...

Страница 28: ...OO Lever Pause MLEVPO351AFOO Lever Deck 2 Erase Prevention AA AA AA AA AA 142 MLEVP0360AFOO AC 143 MLEVP0361 AFOO AB AF AA AA AA AA AF AD AC AD AA AB AD AA AC AH AG AA 159 MSPRC3289AFFJ AA AC AA AC AA AA AC AB AB AC AC AR AB AB AB AB AD AB AB 2 8 134 135 PART NO MLEVP0352AFOO MLEVP0413AFOO 136 MLEVP0353AFOO 137 M LEVP03 54AFOO 138 MLEVP0355AFOO 139 MLEVP0356AFOO 140 MLEVP0357AFOO 141 MLEVP0358AFZZ...

Страница 29: ...ocket 2Pin with Wire Leads G F 500 AA A F601 0 F601 J201 A B J201 C J201 D E J201 F G 1 J401 402 J403 Mol 2 SO601 602 l SO601 602 PART NO QFS C122EAFNI QFS 8152AAFNI QJAKZ0148AFZZ QJAKB0059AFZZ QJAKJOI OGAFZZ RMONO125AFOl QSOCE0561 AFZZ QSOCE0563AFZZ SOL501 RPLU 0146AFZZ SP1 2 VSPOOI 2PB58SA SF l 2 VSPOOl2PB59SA SP3 4 RALMB0057AFZZ SW1 A F QSW BOI 52AFZZ SW1 01 A J QSW S0373AFZZ SW102 A D SW1 03 A...

Страница 30: ...F500Z TCAUAO249AFZZ Caution Label Power Supply GF 500 TCAUH0211AFZZ Caution Plug GF 506 AA TCAUS0104AFZZ Caution Safty GF 500 AB TCAUS0139AFSA Caution Label GF 500 TGANE1121AFZZ Warranty Card For PX A C GF 500Z TGANEl124AFZZ Warranty Card For Users AC in Australia GF 500Z TINSEO853AFZZ Operation Manua GF 500 TINSZ0435AFZZ Operation Manual AK GF 500Z TLABS0059AFZZ Label UL GF 500 AA TL4BZOll BAFZZ ...

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