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There are currently no product reviews.
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Very good scanning quality. All schematics are very legible. Worth every cent !
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Excellent quality, very quick download turnaround, will definately use again.
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This is a awesome quality scan of the original Service Manual for Technics 8099.
Contains the circuit diagram, PCB layout, adjust/tune instructions as well.
Since this is my first buy here, i'm really glad! This site do works as intended/described, it's definitely not scam!
Мои рекомендации! Все мануалы настоящие!
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Good Quality of the File.
You get the normal manual is incudet.
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Very nice and real Service Manual, I didn't thought it actually exist in the real world at all.
7
Does pulse of L = 1.65V and H = 3.3V develop at pin 131 and L = 0V and H = 1.65V develop at pin 132 of IC502? Y Y Check signal process system following to IC503. Does RF output higher than 1.5 V(p-p) develop at pin 45 (TP515) of IC501 ? Y N
Disc playback is NG (DVD).
N
Is PLL locked? (Refer to waveforms.)
N
Check peripheral circuits of IC502 and IC601.
Check IC501. Lens cleaning.
N
Pin 57 of IC501 = 2.4V Pin 58 of IC501 = 3.0V
Pickup mechanism replacement
Y Check peripheral circuits of IC502 and IC601. Check peripheral circuits of IC501and IC502.
Fig. 1-3-16
PLL works as a servo loop to generate a clock signal for reading RF signal binary data. With the PLL locked, the eye pattern is identified clearly when triggered with the read clock PLCK.
DVD RF signal DVD playback waveform
DVD RF signal Pin 45 (TP515) of IC501 DVD RF signal Pin 45 (TP515) of IC501
V : 500 mV/div H : 50 ns/div
DVD PLCK Pin 117 (TP511) of IC502 CH1 : TP515 DVDRF 500 mV/div CH2 : TP511 DVDPLCK 5 V/div 50 ns/div
Fig. 1-3-17
Fig. 1-3-19
CD RF signal CD playback waveform
CD RF signal Pin 45 (TP515) of IC501
CD RF signal Pin 45 (TP515) of IC501
V : 500 mV/div H : 100 ns/div
CD PLCK Pin 117 (TP511) of IC502 CH1 : TP515 CDRF 500 mV/div CH2 : TP511 CDPLCK 5 V/div 100 ns/div
Fig. 1-3-18
Fig. 1-3-20
1-12
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