Здесь не раз писалось об одном из минусов упомянутого аппарата - не читает или плохо читает CD-R.
Решение проблемы предлагает afblaster на родственном форуме , где он пишет буквально следующее:
The problem with reading CD-Rs is caused by a missing 10pF capacitor on the HF Amp pcb.
The HF Amp pcb is attached to the underside of the transport.
The transport has to be removed from the machine in order to access this pcb.
Orientate the copper (track) side of the pcb so that the semi-circular cutaway in the narrow tongue of the pcb is facing downwards.
You will see a group of four or five surface-mount resistors and capacitors situated adjacent to and above IC7404 (PC74HCU04D), which is the smaller of the two ICs on the other (component) side of the pcb, the other IC being 7500 (TDA1302T).
In the middle of the square formed by this group of resistors and capacitors you will see a space labelled 2509, (located immediately to the right of 3504, a 22K resistor).
This is the location of the missing 10Pf capacitor, which if it were present, would be connected in parallel with the 22K resistor (3504). I found that an ohm meter was very useful here, just to be sure the vacant pads were in parallel with 3504.
Since I added a ceramic disk capacitor to my machine (my eyes are not good enough to worh with surface-mount components), I've not had any problems with any makes of CD-R.
I hope this fix solves your problems too.
Unfortunately I do not have any schematics or drawings of this mod.
Описанная не сложная операция была проделана мной для постоянного клиента, который, кстати, и обнаружил эту ветку на diyaudio. Подтверждаю действенность операции, а полный мануал 6000-го есть на сайте у Сиволобова.
Решение проблемы предлагает afblaster на родственном форуме , где он пишет буквально следующее:
The problem with reading CD-Rs is caused by a missing 10pF capacitor on the HF Amp pcb.
The HF Amp pcb is attached to the underside of the transport.
The transport has to be removed from the machine in order to access this pcb.
Orientate the copper (track) side of the pcb so that the semi-circular cutaway in the narrow tongue of the pcb is facing downwards.
You will see a group of four or five surface-mount resistors and capacitors situated adjacent to and above IC7404 (PC74HCU04D), which is the smaller of the two ICs on the other (component) side of the pcb, the other IC being 7500 (TDA1302T).
In the middle of the square formed by this group of resistors and capacitors you will see a space labelled 2509, (located immediately to the right of 3504, a 22K resistor).
This is the location of the missing 10Pf capacitor, which if it were present, would be connected in parallel with the 22K resistor (3504). I found that an ohm meter was very useful here, just to be sure the vacant pads were in parallel with 3504.
Since I added a ceramic disk capacitor to my machine (my eyes are not good enough to worh with surface-mount components), I've not had any problems with any makes of CD-R.
I hope this fix solves your problems too.
Unfortunately I do not have any schematics or drawings of this mod.
Описанная не сложная операция была проделана мной для постоянного клиента, который, кстати, и обнаружил эту ветку на diyaudio. Подтверждаю действенность операции, а полный мануал 6000-го есть на сайте у Сиволобова.
