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This service manual helped me to repair my PIONEER. Iam very satisfied, that I found it here.
Even the price of manual was not so high that person would not be able to spend a few money.
But that is very worth spent money. Thanks
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Excellent quality service manual. Quick processing, fair prices. Love to do business again. Thank you!!!
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Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
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I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
ADJUSTMENT
A MAIN C.B
PRACTICAL SERVICE FIGURE
<TUNER SECTION>
4
Sensitivity : (IHF, THD 3%) F M Less than 17dB [at 88.0MHz] Less than 17dB [at 98.0MHz] Less than 17dB [at 108.0MHz] (S/N 10dB) A M Less than 57dB [at 600kHz] Less than 56dB [at 1000kHz] Less than 56dB [at 1440kHz] S/N Ratio : F M More than 53dB [at 88.0MHz] More than 53dB [at 98.0MHz] More than 53dB [at 108.0MHz] A M More than 25dB [at 600kHz] More than 27dB [at 1000kHz] More than 27dB [at 1440kHz] Intermediate frequency : F M 10.7MHz ± 0.1MHz A M 455kHz ± 3kHz FM stereo separation : More than 17dB [at 98.0MHz]
VOLUME
VR101
6 7
PHONES
L203
J101
4 2
PVC1 TC203 TC204 TC202 L202 L205 L204 TC201 SFR 101
7
<TAPE SECTION>
Tape speed : Wow & flutter : Take-up torque : F.F torque : Rew torque : Back tension : S/N ratio : Distortion : Noise level : 3015Hz ± 60Hz Less than 0.5% (RMS) 24 ~ 45g-cm (FWD) 70 ~ 150g-cm 70 ~ 150g-cm 1.5 ~ 4.0g-cm (FWD) More than 40dB Less than 3.0% Less than 5.0mV (Vol MAX, without tape) Less than 0.3mV (Vol MIN, without tape) 63Hz + 0.5/� 7.5dB ~ 8kHz + 4/� (NORM) 63Hz + 2/� 6dB ~ 10kHz + 4/� 5dB (METAL) TTA� 100 TTA� 210 TTA� 310 (METAL) TTA� 320 (NORM)
3
5
5
1
2 3
67
L201 BAR ANT
C
<TUNER SECTION>
1. AM IF Adjustment L205........................................... 450kHz 2. AM Frequency Range Adjustment L204................................ 517kHz±5kHz TC204.......................... 1750kHz±10kHz 3. AM Tracking Adjustment L201........................................... 600kHz TC201...................................... 1400kHz 4. FM Frequency Range Adjustment L203......................... 87MHz±0.1MHz TC203.................... 109MHz±0.1MHz 5. FM Tracking Adjustment L202........................................ 88.0MHz TC202 ................................... 108.0MHz
7. GOVERNER Adjustment Perform the STOP �> PLAY and REVERSE operations (or PAUSE ON �> OFF) after the motor is replaced. When the tape starts running smooth, this adjustment is not necessary. If wow is conspicuous at the beginning of the tape-run, perform this adjustment following the procedures below. 1) Solder resistor pattern (A) of the MOTOR AND GOVERNOR MATCHING ADJ. resistor group. 2) Set the tape speed (using speed adjustment SFR101). 3) Restrict the motor rotation by hand (or turn PAUSE ON). 4) Remove your hand and listen to the beginning of the tape-run. 5) When the rise of tape running is smooth, no more adjustment is necessary. If wow continues for 1 to 2 seconds at the rise time, change the combined resistance according to procedure 6 and check that the tape starts running smooth. 6) Solder the resistor pattern according to the table below
A R115 B R116
Frequency response : 4dB
R117
Test tape :
<TAPE PLAYER SECTION>
6. Tape Speed Adjustment Settings : � Test tape : TTA�100 (Tape center) � Test point : PHONES (J101) � Adjustment location : SFR101 � MSP : CLASSIC � TAPE SELECTOR : NORM � VOLUME : MAX Method : Play back (FWD) the test tape and adjust SFR101 so that the frequency becomes 3010Hz±10Hz. Then confirm WOW is less than 0.50%.
Pattern (Procedure 1 above) Step (1) Step (2) (NOTE :
Low resistance (A) Solder Solder Solder =1.2ohm ,
Medium resistance (B) Open Solder Solder =1.5ohm ,
High resistance (C) Solder Open Solder C =8.2ohm)
A
B
7) Finally re-check the tape speed.
Caution : Cool the patterns down to normal temperature after soldering. If the pattern remains heated, the gorvernor circuit does not operate normally.
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