The purchased manual is an scan of the original Panasonic paper-based Service Manual. Unfortunately the contrast is not perfect, but I am satisfied anyway!
The purchased manual is an high-quality scan of the original JVC paper-based Service Manual. The Service Manual includes the Owner´s Manual, so you do not have to buy both of them.
Complete manual with clear schematic diagrams and printed circuit board layouts of two variants of the headset and the transmitter an old and a new version.
Also shows how the headset and the transmitter is opened and how transmitter and receivers can be adjusted and where to measure.
I had no problems to repair the headset using this service manual.
Text excerpt from page 23 (click to view)
Diagnostic Software, Trouble Shooting and Test Instructions
5.3.6 No Digital Out on Optical and Coaxial
DVD580M
5.
EN 23
No Digital output from optical and Coaxial terminal terminal Go Check point : the user's set up manual Observe : check the audio set-up is in digital output mode Yes Check point : pin 10 of CN501 on AV output board Observe : the +5V is presented . Yes Check point : R23 at pin 118 of Ess60x8 Observe : check is the R23 opened. No Check point : CN1at decoder board and CN501 on AV output board Observe : check is any poor contact between CN1 and CN51. No Check point : the copper trace between pin 118 of ESS60x8 to SPDIF at pin 8 of CN1. Observe : check is there any opened trace or poor soldering. Solution : check the output at pin 41of ESS60x8. If no signal from pin 41, change the IC of ESS60x8
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.
No
Solution : change the set up
No
Solution : check the 5V supply source from decoder board.
Yes
Solution : Replace R23
Yes
Solution : Replace the connector assembly
No
Figure 5-6 5.3.7 No Digital Out on Optical
No Signal output from Optical terminal but Coaxial output is normal
Go Yes Check point : the R503 on AV output board Observe : check if the resistor is opened Solution : replace the resistor
No Solution : replace the Optical output assembly set
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