Panasonic sa xr 55 e service manual

Page 2

SA-XR55E l SA-XR55EB I SA-XRSSEG

20 Hz-15 kHz +1 dB, -2 dB
Alternate channel selectivity

£400 kHz 65 dB
Capture ratio 1.5 dB
Image rejection at 98 MHz 40 dB
IF rejection at 98 MHz 70 dB
Spurious response rejection at 98 MHz 70 dB
AM suppression 50 dB
Stereo separation

1 kHz 40 dB
Carrier leak

19 kHz -30 dB

38 kHz -50 dB
Channel balance (250 Hz-6.3 kHz) 11.5dB
Limiting point 1.2 pV
Bandwidth

lF amplifier 180 kHz

FM demodulator 1000 kHz

Antenna terminal 75 Q (unbalanced)

n AM TUNER SECTION

Frequency range 522-1611 kHz

(9 kHz step)
530-1620 kHz
(10 kHz step)

n VIDEO SECTION
Output voltage at 1 V input (unbalanced) 110.1 Vp-p
1.5 Vp-p

75 Q (unbalanced)

Maximum input voltage
Input/output impedance

S-Video
Input TV, DVD, DVD
RECORDER
Output TV MONITOR
Component Video
Input TV, DVD, DVD
RECORDER
Output TV MONITOR
n GENERAL
Power supply AC 230-240 V, 50 Hz
Power consumption 135 W
Dimensions (W x H x D) 430 mm x 107.5 mm x
394 mm
Mass 4.6 kg
I Power consumption in standby mode: 0.3 W

Notes:

1. Specifications are subject to change without notice.

Sensitivity 20 uV, 330 uV/m V V V
Mass and dimensmns are apprommate.
Selectivity (at 999 kHz) 55 dB V g g _ , V
2. Total harmonic distortion IS measured by the digital spectrum
IF rejection (at 999 kHz) 50 dB analyzer
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 professional technicians. Any attempt to service
or repair the product or products dealt with in this sen/ice information by anyone else could result in serious injury or death.

CONTENTS

Page

1 SAFETY PRECAUTIONS --------------------------------------------------------- 4
1.1. GENERAL GUIDELINES ------------------------------------------------ 4

2 Caution for AC Mains Lead ----------------------------------------------------- 5
3 Before Repair and Adjustment ----------------------------------------------- 6
4 Protection Circuitry ----------------------------------------------------------------- 6
5 Handling the Lead-free Solder ------------------------------------------------ 6
5.1. About lead free solder (PbF) ------------------------------------------ 6

6 Accessories

7 Operating Instructions

7.1. Main Unit -----------
7-2- Remote Control _____________________________________________________________ 9
7-3- Home Theater ConnectiOns __________________________________________ 10
7»4- Other Connections _______________________________________________________ 15
8 Disassembly aIId Main Component Replacement Procedures
afld Operationai Check _________________________________________________________ 18
84- DisasSembly flow chart _________________________________________________ 18

Page

8.2. P.C.B. Positions ----------------------------------------------------------- 19

8.3. Disassembly of Top Cabinet. ---------------------------------------- 19
8.4. Checking for the DSP P.C.B. (Side A/B) and Main P.C.B.

(Side A). ------------------------------------------------------------- 20

8.5. Disassembly and Checking of Main P.C.B. (Side B) ------ 21
8.6. Disassembly of Tuner Pack and Tuner Extent P.C.B. ----21
8.7. Disassembly and Checking of Speaker P.C.B. -------------- 22
8.8. Disassembly and Checking of Component Video P.C.B.-22
8.9. Disassembly and Checking of Video & Optical P.C.B
8.10. Disassembly of Rear Panel -------------------------------

8.11. Disassembly and Checking of Input P.C.B. ------------------- 24
8.12. Disassembly of Front Panel ------------------------------------------ 25
8.13. Disassembly and Checking of Panel P.C.B., Volume
P.C.B. and Headphone P.C.B. -------------------------------------- 26
8.14. Disassembly and Checking of Power P.C.B. ------------------ 27

9 Self Diagnosis Display Function ------------------------------------------- 28