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Caracteristiques,circuit adjusment,notes on schematis diagram,it's a good service manual,to live well,thanks.
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Service Manual in good quality, with all of the pages.
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Very usrfull for repaur, great quality copy. includes complete parts list and schematics
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Good quality Service Manual, availability of components includes disassembly, electronic adjustments. Includes a full list of details and diagrams. Contains 58 pages.
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y'm hapy for this shoping . Estoy feliz por esta compra , ahora puedo reparar mi equipo de audio que AMO . And very good price for this manual . Thank yuo .
PD-117
11. Focus Best Adjustment
Adjust this point only if adjustment was made in item 10.
Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC
MAX
Innermost circumference PLAY (1 TRK)
VR156
MOTHER BOARD ASSY Adjust the RF level to maximum, with the focus error voltage within ±150mV.
Oscilloscope
GND
START
GND
TP1 (CN201)
FE RF VC
Player
DC Mode CH1: 5mV/div CH2: 20mV/div H: 200ns/div Prove (10:1)
6 1 4
MOTHER BOARD ASSY
12. Tracking Servo Loop Gain Adjustment
UNDER Test mode SPDL servo = CLOSE FOCUS servo = CLOSE TRKG servo = CLOSE
TEST DISC
GND GND
Prove (10:1)
UPPER
Innermost circumference PLAY (1 TRK)
JUST
VR151
MOTHER BOARD ASSY Lissajous Waveform
Oscilloscope
X-Y Mode X: 20mV/div Y: 10mV/div
START
TP1 (CN201)
TE TI VC
Player
Prove (10:1)
Low-frequency oscillator
1.2kHz 1Vp-p
Prove (10:1)
2 3 4
100k� GND
MOTHER BOARD ASSY
24
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