This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
Hi, this is a very clear manual, nice copy, not quite up to the standard of the very best available but better than many others. I think the price was especially fair for a hard to find manual and I would certainly use this manual seller again. Recommended.
Helpd me mont a new carradio when prewius mont was a mess.
Text excerpt from page 31 (click to view)
CT-W208R
7. GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1 POWER ON SEQUENCE
� POWER/ON key is pressed. � Power on information with the sytem bus.
Note : Pin No. shows the Pin No. of µ-COM PD5351A.
Go to Power ON
Perform the mechanism initialization every time it power on. (When the AC outlet is pulled out while raising up the Head Base or the gear comes off, perform the initialization every time because the normal movement can't be done.)
200mS WAIT Check that the mecha. is stop condition (port Pin 14 and 20 = L) Is MODE SW OFF ? No MOTOR ON SOL 50mS ON (port Pin 53 and 55 ) (port Pin 54 and 56 ) No 150mS WAIT Is MODE SW OFF ? Yes Is it fifth times ? No No Is MODE SW OFF ? Yes 300mS WAIT Yes :ERROR Yes
500mS WAIT
MOTOR ON
ERROR
Is it second times ? Yes :Give up
No
MOTOR OFF
(port Pin 54 and 56 )
Initialize end Deck motor off (port Pin 54 and 56 = L)
