S-Video Input 1 (Din 4 pin, Separate Y/C Signals Input)
DVD Input: Component Video Jack-Y 1 (1.0Vp-p, impedance 75Ω)
Component Video Jack CB/CR 1 (0.7Vp-p, impedance 75Ω)
Audio inputs: Phono jack (L/R) x 2 (436mVrms, more than 40KΩ)
Video monitor outputs: Phono jack x 1 (1Vp - p, 75Ω)
Audio monitor outputs: Phono jack (L/R) x 1 (436mVrms, less than 600Ω)
Headphone jack: Mini stereo jack x 1
Sound Output (RMS) . . . . 7.5W + 7.5W
Speaker size. . . . . . . . . 6 cm 12 cm 2 pcs
Give complete “SERVICE REF. NO.” for
parts order or servicing. It is shown on the
rating plate at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television
transmission system and power source differ from the design specifications. Refer to
the specification table.
1: An isolation transformer should be connected in the
power line between the receiver and the AC line
when a service is performed on the primary of the
converter transformer of the set.
2: Comply with all caution and safety-related notes pro-
vided on the cabinet back, inside the cabinet, on the
chassis or the picture tube.
3: When replacing a chassis in the cabinet, always be
certain that all the protective devices are installed
properly, such as, control knobs, adjustment covers
or shields, barriers, isolation resistor-capacitor networks etc.. Before returning any television to the
customer, the service technician must be sure that
it is completely safe to operate without danger of
electrical shock.
X-RADIATION PRECAUTION
The primary source of X-RADIATION in television receiver is the picture tube. The picture tube is specially constructed to limit X-RADIATION emissions. For continued X-RADIATION protection, the replacement tube must be
the same type as the original including suffix letter. Excessive high voltage may produce potentially hazardous X
- RADIATION. To avoid such hazards, the high voltage must be maintained within specified limit. Refer to this
service manual, high voltage adjustment for specific high voltage limit. If high voltage exceeds specified limits,
take necessary corrective action. Carefully follow the instructions for + B1 volt power supply adjustment, and high
voltage check to maintain the high voltage within the specified limits.
PRODUCT SAFETY NOTICE
Product safety should be considered when a component replacement is made in any area of a receiver.
Components indicated by mark in the parts list and the schematic diagram designate components in which
safety can be of special significance. It is particularly recommended that only parts designated on the parts list
in this manual be used for component replacement designated by mark . No deviations from resistance
wattage or voltage ratings may be made for replacement items designated by mark .
1SIFoutSIF Output (NICAM)
2IFAGC-FIF AGC Filter
3SIF-INSIF Input
4FM-FFilter for the DC loop of FM detector
5FMoutFM detector output
6Aud outAudio output
7SND-APC-FSnd VCO frequency is locked at
500kHz from SIF
8IF-VccDC Supply pin for IF circuit
9VM/Ext-A-INExternal audio signal input
10ABLAuto Beam Limiter function
11RGB VccVcc input pin of RGB output block
function
12R-OutR signal output pin function
13G-OutG signal output pin function
14B-OutB signal output pin function
15NCNot Connected
16VrampTo generate a ramp waveform for the
reference V-out
17V-outOutput pin of vertical synchronization
ramp signal
18IrefProducing reference current function
19H-VccVcc of Horizontal deflection and BUS
interface
20AFC-FAFC Filter pin of horizontal VCO function
21H-outHorizontal output pin
22VCD-GNDVideo Chroma Deflection GND
23Power Fail INPower Fail Input function
24S-TERM INS-Video input
25STATUS INFactory PC mode status (L=ON)
26Remote INRemote Control signal receiver
27P14/PWM1
28P15/PWM2
29ON-TIMER LED OUT On timer led out function
30MUTE OUTMute out function
31IIC SDA1IIC-Bus Data Line
32IIC SCK1IIC-Bus Clock Line
33X ’ talCrystal Oscillator
34X ’ talCrystal Oscillator
355VSupply (5V)
36Power OutPower On/Off signal output
37Bass Expander Bass Expander On/Off function
ON/OFF OUT
38VIF M OUTVIF M Out/Bilingual Out function
/Bilingual Out
39AD KEY INKey signal input
40RESETRESET pin function
41FILTFILT pin function
42GNDGround
Pin No. Function NameFunction
43CCD-VccVcc (5V) pin for 1H delay-line
44FBP-INFly Back Pulse Input
45YC-CY/C-C Input function
46YC-YY/C-Y Input function
47C-APC2AFC filter pin of chroma VCO.
50X ’ tal4.43MHz Crystal
51CR-INCRInput (for DVD)
52SVO/FSCSelected Video Output or FSC Output
53C-APC-FChroma APC Filter
54Ext-Video-INExt Video Input & Y Input in S-VHS
mode
55VCD-VccVideo Chroma Deflection VCC
56Int-Video-INInt. Video Input & Chroma Signal
Input in S-VHS mode
57Blk-FBlack peak level detection in black
stretch circuit.
58PIF-APC-FAPC filter pin for PLL circuit function.
59AFTAutomatic Fine Tuning Output pin
60Video outVideo Output pin
61RF AGCRF AGC Output pin
62IF-GNDGround of IF circuit
63VIF INPIF input pin
64VIF INPIF input pin
-7-
Service Information
Protection Circuit
This TV set has a built-in power supply protection circuit.
It is provided to protect the TV set in case of a power supply circuit malfunctions. When something abnormality
occurs during TV reception, the TV set goes to the stand-by mode.
When an abnormality occurs during TV reception, it causes pin 23 of the CPU to go continually Low for about
one second. The CPU detects that this has occurred and outputs the signal from pin 36 to switch off the power
supply lines.
Releasing the protective circuit and restoring power supply
To release the protective circuit and restore power supply, turn the power to the TV set OFF and then ON again
via either the main power switch or the ON-OFF button on the remote control. This will work only if the power
supply trouble was temporary. If there is permanent trouble such as a damaged circuit, power cannot be
restored and the circuit will have to be repaired.
-8-
Service Adjustments with Replacing Memory IC(IC801)
Note: The CPU (IC201) and memory IC (IC801) store the service adjustments data and controls data for each
circuit.When the Memory IC(IC801) is replaced, some of the service adjustments should be readjusted to
obtain the best performance. The necessary service adjustments are carried out by using the RC handset.
Please set up the TV set with following steps [1] to [2].
[1] Initializing Procedure
1. Put a new memory IC.
2. Turn on the TV set.
3. Press and hold the TV/AV Selector on the TV set for more than 2 seconds. The following picture appears on the
screen.
VIDEO
L-AUDIO-R
TV/AV
MENU
CLR
4. Press the PROGRAMME UP on the TV set while the above On-Screen Display is still on the screen. The following
picture appears on the screen.
- +
CH
TV/AV Selector
VIDEO
L-AUDIO-R
1
This completes the initialization of memory IC.
Following shows the initialized contents of memory data by this procedure.