Panasonic SA-HT545GN User manual

© 2007 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-HT545GN
SA-HT895GN
SA-HT995GN
Colour
(S) .... Black Type
DVD Home Theatre Sound System
Subject : Service Repair Information
Please use this service manual together with the service manual for
Model No. SA-HT545GN-S, Order No. MD0605179C3,
Model No. SA-HT895GN-S, Order No. MD0605183C3,
Model No. SA-HT995GN-S, Order No. MD0605203C3.
ORDER NO. MD0701003SE

1 Service Note
1.1. Background
The following list of models has been improved with the over voltage protection sensing voltage changing from +/-30V to 30V
(ground to -30V):
(A) SA-HT545GN-S (MD0605179C3)
(B) SA-HT895GN-S (MD0605183C3)
(C) SA-HT995GN-S (MD0605203C3)
Below reflects the changes to the necessary parts in Main P.C.B: -
Part Number
Model No. Refer No. Original Part No. New Part No. Part Name & Descriptions Remarks
SA-HT895GN-S,
SA-HT995GN-S C5713 ECJ1VB1H102K ECJ1VB1H104K CAPACITOR CHANGE [M]
SA-HT545GN-S,
SA-HT895GN-S,
SA-HT995GN-S
D2900 B0BC035A0007 B0BC010A0007 ZENER DIODE CHANGE [M]
SA-HT545GN-S,
SA-HT895GN-S,
SA-HT995GN-S
R5729 ERJ6GEYJ103V ERDS2TJ562T RESISTOR CHANGE [M]
SA-HT545GN-S,
SA-HT895GN-S,
SA-HT995GN-S
RW20 -REU35R055CC WIRE ADD [M]
[M] indicates parts that are supplied by PAVCSG.
Suffix No. Change Information:
(A) SA-HT545GN-S : From “C” To “D”. (Main/Power P.C.B Part No. REPX0536A)
(B) SA-HT895GN-S: From “F” to “G”. (Main/Power P.C.B Part No. REPX0507D)
(C) SA-HT995GN-S: From “F” to “G”. (Main/Power P.C.B Part No. REPX0542A)
2 Parts replacement Procedure
Step 1: Remove chip resistor, R5729 (ERJ6GEYJ103V) from the Main P.C.B.
Step 2: Replace the chip resistor, R5729 with discrete part (ERDS2TJ562T) by back-solder. Connect the discrete resistor from pin
1 of PC5701 to ground by wire (REU35R055CC). Apply bond after the back-solder of the part.
2
-
HT545GN / SA-HT895GN / SA-HT995GN

Step 3: Change chip diode, D5700 (New Part No.: B0BC010A0007)
Step 4: Change capacitor, C5713 (New Part No.:ECJ1VB1H104K)
Step 5: Change resistor, R5709 (New Part No.: ERJ3GEYJ202V)
3
SA-HT545GN / SA-HT895GN / SA-HT99
5
PSG0701