DIGITAL HOME

THEATER SYSTEM
Model Name : HT-TZ315
Model Code : HT-TZ315R/XER

Speaker PS-TZ315
Front PS-FTZ315
Center PS-CTZ315
Rear PS-RTZ315
Subwoofer PS-WTZ315

SERVICE Manual

DIGITAL HOME THEATER SYSTEM CONTENTS

1. Precaution

2. Product Specification

3. Disassembly & Reassembly

4. Troubleshooting

5. Exploded View & Part List

6. PCB Diagram

7. Schematic Diagram

HT-TZ315

Refer to the service manual in the GSPN (see the rear cover) for the more information.
Schematic Diagram

7-1 Overall Block Diagram

 The main system uses the MPEG (ES8391). The HDMI Tx IC is ES7108S. The main system consists of major circuit
blocks such as HDMI, POWER, CEC, FRONT, KARAOKE, etc.
The Main system includes the functional blocks such as FM-TUNER, AUX INPUT, ADC, Sub_Micom, etc.

 The information about the main system operation is displayed on the VFD of Front Board.

 Audio signal is transmitted through Analog 2V between the main body and the speaker, and is input to the AMP through
ADC (CS5345).
First, MPEG (ES8391) receives RF signal from the PICK_UP and decodes Video and audio signal.

 HDMI IC is implemented by the I2C. The Micom and MPEG control each other through RXD and TXD communication.

 The Power supplies voltages for each component using the SMPS. The Power can be switched turned on or off through
the Micom port. The functions and DPL2 function can be controlled by the front keypad and remote control.
DRAM
M12L12816B

FLASH
AT26DF161A

ROM
24C08A

7-2 This Document can not be used without Samsung’s authorization. Samsung Electronics
 Schematic Diagram

7-2 FRONT

POWER

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Schematic Diagram

7-3 BLUETOOTH

POWER

7-4 This Document can not be used without Samsung’s authorization. Samsung Electronics
 Schematic Diagram

7-4 AMP

TP8

TP7

TP6

TP7

TP6 TP7 TP8

TP7

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Schematic Diagram

7-5 MAIN

TP15
POWER
AUDIO
VIDEO

TP16

TP16
TP15
TP2

TP12
TP11
TP10

TP9
TP2

TP9

TP13

TP10 TP12

TP11 TP13

7-6 This Document can not be used without Samsung’s authorization. Samsung Electronics
 Schematic Diagram

7-6 MICOM

POWER

TP2

TP3

TP3 TP4 TP5

TP4

TP5 TP2

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Schematic Diagram

7-7 ANALOG

TP1
POWER
AUDIO
VIDEO

TP9 TP10

TP2

TP5 TP4 TP3 TP3

TP2

TP9

TP4

TP1 TP1
TP12 TP5

TP11 TP12

TP10

TP11

7-8 This Document can not be used without Samsung’s authorization. Samsung Electronics
 Schematic Diagram

7-8 HDMI

POWER
AUDIO
VIDEO
HDMI OUT

TP13

IC31
ES7108S

TP14

TP13

TP14

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Schematic Diagram

7-9 SMPS
RS 3 RS4
2W 47K 22K

UF4007 ZDS 1 ZDS 3 CS3

DS1 RS1 1N4750B US2
1W330K DB4 630V/103
MAC228A8
CS 1 CS2
103 M
100V/4.7uF
RS2 ZDS 2 RS6
RS5 2W 100
3.9K 1N4750B L91
470
2.9uH

ORTP-616 T2

SA1 U-4B 230V

ORTP-616 T1

+8V
GND
+5V
+5V
+3.3V
+3.3V
GND
GND
P/S
P/ON
+5.6V
GND
VFD +4.3V
VFD -4.3V
-VP

L71
15uH

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