Panasonic sa ht 40 p service manual

Page 2

SA-HTADP I SA-HTAOPC

20 HZ to 15 kHz, +1 dB, -2 dB

Image rejection at 98 MHz 40 dB
Stereo separation
1 kHz 40 dB

Antenna terminal
nAM TUNER SECTION

75 Q (unbalanced)
Frequency range 530 kHz to 1710 kHz
GENERAL
Power supply AC 120 V, 60 Hz
Power consumption 100 W
Dimensions (W x H x D)
430 mm x 105 mm x 352 mm

(16-15/16" x 4-1/8" x 13-27/32")

Mass 3.8 kg (8.4 lb.)
Power consumption in standby mode: 1 W
SYSTEM

System: SC-HT40 (P) Main unit: SA»HT4O (P)
Front speakers: SB-PF40 (P)

Surround speakers: SB-PS40 (P)

Center speaker: SB-PC40 (P)
Subwoofer: SB-W4O (P)

System: SC-HT40 (PC)
Main unit: SA-HT40 (PC)
Front speakers: SB-PF4O (P)
Surround speakers: SB-PS4O (P)
Center speaker: SB-PC40 (P)
Subwoofer: SB-W4O (P)

Notes:

1.Specifications are subject to change without notice.
Mass and dimensions are approximate.

2.Total harmonic distortion is measured by the digital spectrum
analyzer.

Manufactured under license from Dolby Laboratories.
Dolby, Pro Logic" and the double-D symbol are trademarks of
Dolby Laboratories.

* Manufactured under license from Digital Theater System.
DTS and DTS Digital Surround" are trademarks of Digital Theater
System.

A WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced prolessional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

1 Safety Precautions -----

1.1. General Guidelines --

1.2. Before Repair and Adjustment

1.3. Protection Circuitry --------------------------------------------------------- 5

1.4. Caution for Fuse Replacement --------------------------------------- 5
2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices ................................. 5
3 Handling the Lead Solder ....................................................... 6
3.1. About Lead Free Solder (PbF) ........................................ 6

4 Accessories -------------

5 Operation Procedures

5.1. Remote Control Operation

5.2. Main Unit Operation ------------------------------------------------------- g
6 New Features ------------------------------------------------------------------------ 11
6.1. Wireless ---------------------------------------------------------------------- 11
6.2. Music Port --------- 11
7 Self Diagnosis and Special Mode Setting ............................. 12
7.1. Doctor & Service Mode (Special Mode setting) .............. 12

7.2. Error Code Table -----

8 Assembling and Disassembling

8.1. Caution-

8.2. Disassembly Flow Chart-

8.3. Main Parts Location ----------------------------------------------------- 15
8.4. Disassembly of Top Cabinet ----------------------------------------- 16
8.5. Disassembly of Rear Panel ------------------------------------------ 16

8.6. Disassembly of Front Panel .......................................... 17

Page
8.7. Disassembly of Panel P.C. Music Port P.C.B. & Volume

P.C.B.

8.8. Disassembly of Main P.C.B.

8.9. Disassembly of DSP P.C_B_ .......................................... 19
8.10. Disassembly of AC In P.C_B_ ........................................ 19
8.11. Disassembly of Power P.C_B_ ....................................... 20
8.12. Disassembly of Digital Amp P_C_B_ ............................... 21
9 Service Position ............................................................ 23
9.1. Checking the DSP P.C.B. (Side A) & AC In P.C.B. -------- 23
9.2. Checking the DSP P.C.B. (Side B) -------------------------------- 23
9.3. Checking the Panel P.C. Music Port P.C.B. and Volume
P.C.B. 24

9.4. Checking the Main P.C.B Power P.C.B & Digital Amp
P.C.B. ----------------------------------- 25
10 Voltage Measurement and Waveform Chart ......................... 25
10.1. Voltage Measurement -------------------------------------------------- 25
10.2. Waveform Chan ----------------------------------------------------------- 30
11 Wiring Diagrams ................................................................... 33
12 Block Diagram ---------------------------------------------------------------------- 35

13 Schematic Diagram
13.1. Notes of Schematic Diagram
13.2. (A) DSP Circuit -------------------

13.3. (B) Main Circuit ------------------------------------------------------------ 41

13.4. (C) Digital Amp Circuit -------------------------------------------------- 45

13.5. (D) Panel Circuit, (E) Volume Circuit & (F) Music Port
Circuit -------------------------------------------------------------------------- 47