|
There are currently no product reviews.
 ;
This is the ONLY copy of this manual I could find for a realistic price. Even Panasonic could not provide me with one.
The PDF is a very good copy and it helped me diagnose and find the fault with the unit I have.
;
Very complete and well reading drawings. Documentation is essential for successful repairs.Good documentation, with all that is necessary. This manual was what I was waiting with all the information necessary for the repairing I need it for. You must buy it if you want to do repairs or simply understand how it works.
 ;
Excellent service manual includes everything is need to repair this radio-caseete, how to disassemble, wiring diagram, all , waiting time until the download was only a few hours. I'm going to buy service manuals from here, are cheap and very good.Thank you.
;
Good service manual,i saved from scrapping this deck,is now fully functional.Thanks.
;
Found this to be the manual included with the original packinging, was helpfull but did not give any detailed repair instructions.
1
2
3
4
4 Short Circuit Detection Circuit of DVD Power Line (VP+8)
VD+5 R108 27k XPROTECT D104 1SS355 VP+8
6 FAN Detection Circuit
VD+5 R108 27k XPROTECT µ-com C2 Q3651 RN1901 E2 R3654 1.8k C B2 E V+12F D3658 UDZS7.5B B Q3651 RN1901 C3652 47/50
A
A
Q3652 DTA124TK R3658 2.2k R3657 33(1/4W)FU D3655 1SS133 FAN+ FAN-
AMP Assy
Q106 DTC124EUA Q107 DTA124EUA TUNER
D3657 1SS355 R3655 8.2k
VP+8 is Power Line when the set is DVD Function (TUNER is High level). At this time when VP+8 is short-circuited, as TUNER is Low level, Q106 turns ON and XPROTECT becomes Low level. �U-com detects the XPROTECT level and sets Power OFF. Except DVD Function even if VP+8 is GND level, as TUNER is also High level, Q107 is OFF and XPROTECT does not become LOW level.
AMP Assy
R3656 22k
D3656 S5688G Q3654 2SD2144S (VW) V-12F
B
When the FAN is not connected between FAN+ and FAN-, or FAN is locked state as the foreign matter is blocked, Q3652 Base turns open, and then Q3652 and Q3651(E, C, B) turns OFF. Then Q3651 (E2, B2, C2) turns ON and XPROTECT becomes LOW level. �U-com detects the XPROTECT level and sets Power OFF. When FAN+ and FAN- is short-circuited, A point voltage becomes higher than GND level because of part D3656 and D3657. Then it is lower than part D3658, Q3651(E, C, B) turns OFF and Q3651(E2, B2, C2) turns ON, and XPROTECT becomes LOW level.
5 DC Detection Circuit of SP Terminal
POWER Assy
R3605 (R3625,R3615) 27k FL (SW, SL) FR (C, SR) R3638 10k C3632 470/6.3 R3606 (R3626,R3616) Q3637 27k B Q3638 C XPROTECT +5V Q3632 E
AMP Assy
VD+5 R108 27k
7 Short Circuit Detection Circuit of VFDP
AMP Assy
VD+5 R108 27k
C
Q3633
XPROTECT µ-com
TRADE2 Assy
R114 82k FL AC1 Q114 2SD2114K (VW) VA-12
Q115 DTA124EUA
¶ At normal state both Q3637 and Q3638 are OFF. (1) When (+) side DC Voltage occurs at SP terminal When (+) side DC voltage occurs at L ch or R ch and VB of Q3637 becomes higher than operating point, Q3632(E, C, B) turns ON and XPROTECT becomes Low level. � U-com detects the XPROTECT level and sets Power OFF. (2) When (�) side DC Voltage occurs at SP terminal It is reverse operation as (+) side. Q3638 turns ON and XPROTECT operates.
R112 1k
R113 220k
When VFDP is short-circuited to GND or DC voltage of FLAC1 becomes GND level because of DC bias failure of FLAC1 (normal state voltage is �27V), Q107 turns ON and also Q115 turns ON, then XPROTECT becomes LOW level. �U-com detects the XPROTECT level and sets Power OFF.
D
[How to return from the protection circuit operating]
XV-DV303 operates the protection circuit under the following conditions and makes the set Power OFF. 1. When major voltage becomes down to low level because of short-circuit or without connection. 2. When detecting abnormal thermal rise by the thermistor. 3. When being disconnected Fan connector or blocked of the Fan rotation 4. When making the Speaker connector short-circuited. At this time the timer LED of the front panel blinks and informs the abnormal state. When operating the protection circuit, if it works by above condition 4, it is possible to return immediately by the Power ON button. If it operates by other conditions as above condition 1 to 3, it is possible to return by turning the Power ON 1 minute after starting protection circuit operation. When it is necessary to turn the Power ON without waiting 1 minute, pull out the AC plug and discharge the both terminal of the backup capacitor (C5575) of U-com board. By doing so, as the U-com is reset to the initial state, it is possible to set the Power ON again immediately.
E
F
XV-DV303
1 2 3 4
93
|
