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I expect a wonderful result as alaways!!!!!!
Usually is much faster....
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Wow very wonderful and clear!!!! I will always trust them
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Providing the manual works fine, quickly and without any problems for an acceptable price. After printing the service manual it took me only a short time to repair my carradio from Clarion. Thank You! Greetings from Heiko
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I was searching a way to modify the original phono-in entry (for connection of vynil disc player, with RIAA equalization) to a line-in entry (for connection of modern analog entries, eg. ipod, mp3player).
This service manual gave me the correct hints.
It contains very useful infos for repairing and modifing the hi-fi, such as disassembling instructions, block diagrams, schematic diagrams, PCB prints, replacement parts list.
Very good!
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Great Job!!! clear and efficient as always!!
it is really nice to have peple that are doing such a good work!!!!!
HCD-HP7
CD SECTION
Note: 1. CD Block is basically constructed to operate without adjustment. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10 M� impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. 5. Check the focus bias check when optical block is replaced. Focus Bias Check
oscilloscope (DC range) BD board TP (RF) TP (VC)
+ �
s
Checking Location: � BD BOARD (Conductor Side) �
14
1
IC722
15 28
CN710 TP(RF)
1 80 61
60
Procedure : 1. Connect oscilloscope to TP (RF) and TP (VC) on the BD board. 2. 3. 4. Press the ?/1 button to turn the power on. Put disc (YEDS-18) in and press the N (CD) button to playback. Confirm that oscilloscope waveform is as shown in the figure below. (eye pattern) A good eye pattern means that the diamond shape ( ) in the center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV TIME/DIV: 500 ns
TP(VC)
20 21
IC721
40 41
IC803
level: 1.0 ± 0.2 Vp-p
25
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