Hitachi C21-RF80S Support Question
Hitachi C21-RF80S Support Question
Find answers below for this question about Hitachi C21-RF80S - 21" CRT TV.Need a Hitachi C21-RF80S manual? We have 1 online manual for this item!
Question posted by sagittarius313 on February 22nd, 2011
Sound Problem
hi & hello,
hi i am from dubai.i have aproblem with my (Hitachi C21-RF80S) Tv its working good only the sound not goes up to 30 when its reach on 30 its not increasing if you know or some one know about this problem so plesae let me know any how thanks for every one .......................take care
Current Answers
Related Hitachi C21-RF80S Manual Pages
Service Manual - Page 1
...C21-RF80S/SN/SNT
Destination Code
O81
O51
751
19*
201
433
98*
121
3P31 Chassis
CAUTION: Before servicing this chassis, it is important that the service technician read the" Important Safety Note" in this Service Manual. SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
COLOUR TELEVISION...
OCT 2003 Digital Media System Group, Hitachi Asia Ltd.
Service Manual - Page 16
... main chassis. SERVICE ADJUSTMENTS
ALIGNMENT INSTRUCTION (3P31) Before Servicing The TV Set
The main power is ok, else please proceed servicing.
-16- Please disconnect the power plug form the wall outlet before the adjustment for at least 30 minutes and degauss the CRT thoroughly with BOM.
For safety reasons, all components replaced should...
Service Manual - Page 17
.... Press PIC.MODE key to the normal work status. Adjust the focus knob of the...numeric keys to set picture in STANDARD mode at the center of CRT screen in factory mode. keys.
Screen Voltage Adjustment(Key 9)
Press...
Receive 50HZ cross hatch pattern.
SERVICE ADJUSTMENTS
General Adjustment
Enter factory mode
Press SOUND MODE , RECALL , CH I /II in turn to enter factory mode....
Service Manual - Page 18
...Press KEY 9 and set picture in factory)(KEY 9 )
Normally, this TV can auto adjust white balance, but for some CRT maybe need to obtain white balance. keys to obtain 2.8V digital voltage meter...by P+ and P - .
MODE key to obtain picture s best vertical pin cushion. Method: Press key SOUND MODE , RECALL , CH I/II to obtain picture s vertical center at normal status , receive GREY SCALE and...
Service Manual - Page 19
keys.
-19- The table lists all possible available service items.
1.Press SOUND MODE , RECALL , CH I/II keys on remote control unit to enter factory mode.
2.Press the Direct key buttons on the remote control unit specified in ...
Service Manual - Page 23
....
PURITY AND CONVERGENCE ADJUSTMENT
COLOUR PURITY ADJUSTMENT
(1) Before colour purity adjustment,warm up the TV set over 15 minutes and fully degauss. (2) Receive pure white signal in AV status and...magnet clamper and align red with green dots at the center of CRT screen. (5) Slowly push the deflection yoke toward the front of CRT and set it where a uniform green field is
obtained.
Press...
Service Manual - Page 24
... not intend to use the unit for example, Manganese and Alkaline batteries) together. Remove the batteries from the remote control unit if you hear a click sound. Keep the remote control unit dry. Do not use old and new batteries together. Do not attempt to physical shocks.
Do not subject the remote...
Service Manual - Page 25
...
5
4
Standby Mode
At standby mode, the power indicator lights up . NOTE
If the TV set and disconnect the power plug from standby
mode. Please note that the remote control unit... To turn the TV power ON
5
3 21
Press the power switch on the TV set is ON.
-25- Program Down / Up Button 7.
Sleep Button 9.
CONTROL LOCATION
FUNCTIONAL PARTS
Front View of TV Set
1.
The ...
Service Manual - Page 27
...-9XX
1 POWER ON / STANDBY button Press this button to switch on the TV from standby mode.
2 SLEEP button Press this button to set enters standby mode.
3 SOUND SYSTEM button Press this button to select the correct sound system.
4 STEREO/BILINGUAL SOUND button*1 When stereo program is received, press this button to select STEREO or...
Service Manual - Page 28
....
Low contrast and low brightness level. button to change channel selection to select a channel.
..
-28- To select a three-digit channel (e.g. MODE
TV/AV
10
0 --/---
11
Sound Mode Description
USER
User preset sound mode. button to change channel selection to "1--" on screen display and press "2" and "8" buttons.
12 CHANNEL SELECTION buttons Press the number...
Service Manual - Page 29
... Teletext mode. Buttons Actions In Game
P+ To move down. MODE
SOUND MODE
To advance 1 stage. REMOTE CONTROLLER FUNCTIONS
Remote Control Unit
SOUND SLEEP SYS. MODE
TV/AV
14
0 --/--- U.N.L
SETUP TUNE HOLD SUBPAGE
TV/TEXT MIX
CLOCK GAME LST-CH TYPE SUBTITLE CANCEL
P
18 21 20
MENU
INDEX
13
P
CLE-9XX
13 MENU button*2 Press this...
Service Manual - Page 30
...following: - Lower half screen enlarged - Normal screen state
-30-
buttons
456
3
Press these buttons to access directly to enter...mode.
1 TV/TEXT button
SOUND SLEEP SYS. Upper half screen enlarged -
answers to select a
8
4
Teletext page number.
7
SOUND PIC. CH ... Press this button the second time to increase or decrease
SOUND MODE
789
the Teletext page number.
PIC...
Service Manual - Page 31
... the top left of the screen.
When the required text page
has been received, the page number will be displayed on display to cancel.
9
SOUND PIC. MODE
TV/AV
0 --/--- Enter number buttons (0-9) to display the
Teletext screen.
-31- Some Teletext pages may contain several sub-pages which are automatically paged in a certain...
Service Manual - Page 32
... CONTRAST COLOUR SHARPNESS HUE BLACK STRETCH
48 75 48 75 0 OFF
1 Press the MENU button 1 time or press the PIC. button to exit to TV mode. LANG.
11
SOUND REVEAL
PIC.
NOTE
*1 [EXCHANGE] menu will not be available in AV mode. *2 HUE can only be selected and adjusted when receiving NTSC broadcasts...
Service Manual - Page 33
... set the various timer functions. 1 Press the MENU button 3 times.
2 Select the desired item (e.g.
REMIND PROG
1
This menu allows you to adjust the sound settings according to TV mode. Selected Items CLOCK ON TIME ON PROG OFF TIME SLEEP TIMER REMIND TIME REMIND PROG
Functions Set the current clock time. Set the...
Service Manual - Page 34
...TV...ON to change screen to TV mode.
VHF-L,VHF-H or... unit out of reach to prevent children ...set to the TV.
*2 In AV...sound system (i.e.
Activate to yellow; You may be changed from yellow to a desired TV...TV by remote control unit only. Select ON to disable access to TV via buttons on -screen display language. Selected Items COLOUR SYS*3 SOUND...TV.
[TUNE] menu*2
TUNE
COLOUR SYS SOUND SYS...
Service Manual - Page 36
...)and 2nd anode lead . 4.Remove chassis completely by sliding it out.
DEGAUSSING COIL
DEGAUSSING COIL HOLDER
Figure 1
PICTURE TUBE GROUNDING LEAD
DEGAUSSING COIL SOCKET
To CRT Unit ground
Figure 2
-36- CHASSIS REMOVAL 1.Remove the rear cover (refer to REAR COVER REMOVAL instructions ). 2.Discharge the picture tube anode (2nd anode lead )to...
Service Manual - Page 49
...YZ540092500004 CN701 YZ540092500005 CN402 YZ540095000004 ! TDA6107Q PHILIPS (TRIPLE VIDEO OUTPUT AMPLIFIER) WAFER 2.35mm 1 PIN CRT SOCKET G ZS10-2-108 E/E 15-18KV FOR 21"-29" CONTROL ASSEMBLY FOR 3P31 CARBON FILM RESISTOR 1.5K OHM 1/4W +/-5% (TAPE TYPE)
-... ! L7805CV I .C. L7808CV SGS (STABILIZING) I .C. TDA9874A PHILIPS (DIGITAL TV SOUNDDEMODULATOR/DECODER) QFP44 PACKAGE I.C.
Service Manual - Page 51
...FLAT CRT ELECTROLYTIC CAPACITOR 220uF 400V +/-20% METALLIZED POLYPROPYLENE FILM CAPACITOR0.0018UF 2KV +/-5% METALLIZED POLYPROPYLENE FILM CAPACITOR0.0082uF 2KV +/-5% AC CAPACITOR 0.22uF AC250V-500V +/-10% AC CAPACITOR 0.22uF AC250V-500V +/-10% TRANSISTOR 3DD2499 FOR HOR. DEF LECTION LINEAR COIL 29uH 10mm FOR 14"-21" TV DEGAUSSING COIL FOR 21" TV L=1560mm T=50 220VAC 21" SEG-HITACHI COLOR...
Service Manual - Page 52
... GREY #MSG001 1 INSULATOR RING - BLACK (HIPS) 1 FRONT LENS (TRANSPARENT) 1 POWER SWITCH HOLDER - (ABS) 2 TAPE 280 X 25 X 0.3mm 2 TAPE 250 X 20 X 0.3 MM 1 TAPE 420 X 10 X 0.3 MM 4 CRT MTG. FOR KNITTING WIRE 2 GROUNDING WIRE - DIA. 4.1 MM 2 WIRE HOLDER 2 FUSE HOLDER 1 HEAT SINK (M19) 1 HEAT SINK (M20) 1 HEAT SINK (M21) 1 HEAT SINK (M22) 2 HEAT...
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