|
Who's Online
There currently are 6043 guests online.
|
Categories
|
Information
|
Featured Product
|
|
|
|
|
There are currently no product reviews.
;
The delivery of this manual was very fast, less than 8 hours. The manual is very clear and concise, and helped a great deal in the repair and final setup of the Hitachi HMA-G2 Amplifier.
;
Great service. The manual was exactly what I was looking for: schematic + layout. I managed to fix the player. Highly recommended!
;
At $5,00 certainly good bang for your buck. Includes electric schematics as well as exploded parts view + parts list for reordering. Unfortunately no details on the PCB contents or working, but then again, this is not overly complex. Best bonus: this manual does contain the heavily searched for LED error codes as well as descriptions for test operation. Haven't gotten around to fixing the machine yet, one thing the manual won't do for you is getting it out of the kitchen assembly :-(
;
It`s not your fault tear down is rather incomplete. It doesn`t have complete instructions as to deconstruction for repair.
;
THANK YOU FOR A GOOD TRANSACTION, NICE COPY, CLEAR
4-A A
! Note: Open the CD door and check the radiation
power with an optical power meter or by watching the radiaation through the lens of the pickup unit at a minimum distance of 30cmfrpm the pickup.
Is 92 pin (C16M) (16.93 MHz) of IC502 normal ?
!
No
* Check CN504 and CN604. * Check cn603. * C heck IC701 and X701.
Yes
!
Does the LASER emit ? No
A1
Yes
!
Dose the lens move up and down ? No
A2
Yes Load a disc and close CD tray (PLAY). Then check the following.
5V
Is the waveform at pin 16 (SEL) of IC501 like that shown in Fig. 10 ?
No * Check circuit around IC501 and IC502.
Figure 10
Yes
1V
Is the waveform at pin 9 of IC501 (RFO) like that shown in Fig. 11 ? Yes
No
* Check wire connector from pickup CN505 and CN506. * Check IC501. * Check pickup.
Figure 11
>0.4V
Is the waveform at pin 60 (FEI) of IC502 like that shown in Fig. 12 ?
No
* Check circuit around pins 14 and 15 of IC501. * Check VR502.
Yes
Figure 12
* Check circuit around IC501.
14
|
|
|
> |
|