SANYO TMPA 8859 Diagram

TMPA 8859 SERVICE MANUAL

CONTENT

(1) General-----------------------------------------------------------------------------1
(2) Frame Chart-------------------------------------------------------------------fig.1
(3) IC Function Introduction ------------------------------------------------------1

3.1 N501 TMPA8859-----------------------------------------------------2

3.2 N001 TC90L01N ----------------------------------------------------------3

3.3 N301 TDA8172 ------------------------------------------------------------4

3.4 N601 TA1343N-------------------------------------------------------------4

3.5 N602 TA8246N----------------------------------------------------------4

2

C Bus Control ------------------------------------------------------------------5

(4) I

4.1 Menu Entry -------------------------------------------------5

4.2 Item Introduction -----------------------------------------------------------5

(5) IC Voltage --------------------------------------------------------------8
(6) Trouble shorting------------------------------------------------------------------9

TVS-2542M(SCL)
TVS-2545PF(SCL)
TVS-2944M(SCL)
TVS-2945PF(SCL)
TVS-3444M(SCL)
TVS-3445PF(SCL)

Modelos:

1

SC29

380

(1) General

This chassis is consists of main IC TMPA8859, TA1343N, TC90L01N. TMPA8859 is an
integrated circuit for a PAL/NTSC TV. A MCU and a TV signal processor (SP) are integraed in a 64-pin
shrink DIP package. The MCU contains 8-bit CPU,ROM,RAM,I/O ports,timer/counters, A/D
converters,an on-screen display controller,remoter control interfaces,IIC bus interfaces. The TV signal
processor contains PIF,SIF,Video,multi-standard chroma,Sync,RGB processors.

(2) Frame Chart (see fig.1)

L

→

TUNER

AV/TV SWITCH
TC90L01

AUDIO PRO.
TA1343N

AUDIO POWER

TN8246H

R

PIF/SIF R, G, B

TMPA 8859

VT/BL BH/RF AGC

CRT

OSCILLLLATION

2SC3619 X 3

VM

V-OUT

TDA8172

DPC CIRCUIT

2SD880

H-OUT

2SD2539

SCAN

TRANSFORMER

B

-

2-12R

+130V +22V +27V

 110- 220V +13

ON/OFF POWER

STR-G9656

fig.1

1

(3) IC Function Introduction

3.1 N501 TMPA8859 Function: MCU and SP

Icon PIN Description

SDA2 1 IIC bus serial data input/output
X-RAY 2 X-ray Output
KEY 3 Key input
DVSS 4 GND connection
RESET 5 Reset signal input
XOUT 6 8 MHz oscillator connection
XIN 7 8 MHz oscillator connection
TEST 8 GND connection
DVDD 9 5V power supply
VVSS 10 GND connection
TV GND 11 GND terminal for Analog block
FBP IN 12 Input terminal for FBP
H.OUT 13 Horizontal driving pulse output
H.AFC1 14 H AFC filter connection
V.SAW 15 Terminal to be connected capacitor to generate V saw signal
V.OUT 16 Vertical driving pulse output
H.Vcc(9V) 17 Vcc terminal for DEF circuit
Ys 18 Ys IN
Cb in 19 Input terminal for Cb signal
Y in 20 Input terminal for Y signal
Cr in 21 Input terminal for Cr signal
DIG GND 22 GND terminal for Digital block
C in 23 Input terminal for Chroma signal
V2 in 24 Input terminal for Video signal
DIG Vdd 25 Vcc terminal for Digital block
CW out 26 Output terminal for fsc wave signal
ABCL in 27 Input terminal for ABL/ACL control
EW out 28 Output terminal for east-west correction singal
IF Vvv(9V) 29 Vcc terminal for IF circuit
TV out 30 Detected PIF signal output terminal
SIF out 31 Detected SIF signal output terminal
EHT in 32
H.C0TT in 33
DC NF 34 Terminal to be connected capacitor for DC Negative feedback
PIF PLL 35 Loop filter for PIF PLL connection
IF Vvv(5V) 36 Vcc terminal for IF circuit
REG FIL 37 Terminal to be connected capacitor for stabilizing internal bias
DE-EMP 38 Terminal to be connected capacitor for SIF Det De-Emphasis
IF AGC 39 IF AGC filter connection

2

IF GND 40 GND terminal for IF circuit
IF IN 41 Input terminals for IF signals
IF IN 42 Input terminals for IF signals
RF AGC 43 RF AGC control level output
YC Vcc 44 Vcc terminal for Y/C circuit
Vsm out 45 Output terminal for Vsm signal
Black DET 46 Terminal to be connected with Black Det filter for black stretch
APC Filter 47 Terminal to be connected with APC filter for Chroma demodulation
IK IN 48 Sense ACB cathode current input
RGB Vcc 49 Vcc terminal for RGB circuit
R OUT 50 Output terminal for R signal
G OUT 51 Output terminal for G signal
B OUT 52 Output terminal for B signal
TV GND 53 GND terminal for Analog block
A GND 54 GND connection
A VDD 55 5V power supply
MUTE 56
SDA1 57 IIC bus serial data input/output
SCL1 58 IIC bus serial clock input
PWM 59
LED 60
SCL2 61 IIC bus serial clock input
SYNC 62 Horizontal sync signal input
REMOTE 63 Remote controller signal input
POWER 64 Power control (On=Hi. Off=L)

3.2 N001 TC90L01N Function: I

Name Pin Function

Lin TV 1 This pin is for input a left audio signal form the main demodulator in the TV
Vin TV 2 This pin is for input a composite video signal form the main demodulator in the TV
Rin TV 3 This pin is for input a right audio signal form the main demodulator in the TV
V/Yin V1 4 This pin is for input a luminance signal or composite video signal from an external

source(V1 channel)
LinV1 5 This pin is for input a left audio signal from an external source(V1 channel)
CinS1 6 This pin is for input a chroma signal from an external source(S1 channel)
RinV1 7 This pin is for input a right audio signal from an external source(V1 channel)
VinV2 8 This pin is for input a composite video signal from an external source(V2 channel)
LinV2 9 This pin is for input a left audio signal from an external source(V2 channel)
ALC 10 This is an detect output pin of ALC(Auto Level Control)
RinV2 11 This pin is for input a right audio signal from an external source(V2 channel)
Vcc 12 This is the power supply pin. Apply 9V to this pin.
SDA 13 This is an IIC bus data input/output pin.
SCL 14 This is an IIC bus clock input pin.
GND 15 This is the GND pin.
Rout TV 16 This pin is for output right audio signal.

2

C bus control , Audio/Video switching IC

3

Lout TV 17 This pin is for output left audio signal.
Yout 18 This pin is for output luminance signal.
BAND2 19 This pin is for output band2 to control tuner.
Cout 20 This pin is for output chroma signal.
BAND1 21 This pin is for output band1 to control tuner.
Vout 22 This pin is for output main channel composite video signal.
Rout Mon 23 This pin is for monitor-output right audio signal.
Lout Mon 24 This pin is for monitor-output left audio signal.

3.3 N301 TDA8172 Function: V-scan output
PIN FUNCTION

1 Inverting input
2 Supply voltage
3 Flyback generator
4 Ground
5 Output
6 Output stage supply
7 Non- Inverting input

3.4 N601 TA1343N Function:TV sound processor

Name Pin Function

Offset canceling filter 1 DC offset canceling filter for bass boost.

1 2-5 Terminals for capacitors of the phase shift blocks.

φ4-φ

Lch input 6 Audio input terminal.
GND 7 GND terminal.
Rch input 8 Audio input terminal.
Bias filter 9 Filter for noise rejection of the bias.
Bass LPF(R) 10 LPF for bass control circuits.
Treble HPF(R) 11 HPF for treble control circuits.
Wch output 12 Woofer audio output terminal.
Rch output 13 Right audio output terminal.
Treble HPF(L) 14 HPF for treble control circuits.
Bass LPF(L) 15 LPF for bass control circuits.
Lch output 16 Left audio output terminal.
Woofer LPF1 17 LPF for bass boost cir cu it.
Woofer LPF2 18 LPF for bass boost cir cu it.
Woofer LPF3 19 LPF for bass boost cir cu it.
Vcc 20 This is the power supply pin. Apply 9V to this pin.
Volume filter 21 Smoothing filter for volume control
Woofer LPF 22 Smoothing filter for bass boost control
SCL 23 This is an IIC bus clock input pin.
SDA 24 This is an IIC bus data input/output pin.

4