JPS6055775A - Controller of television receiver - Google Patents

Abstract

PURPOSE:To control items relating to pictures and sounds with a small number of control switches by selecting successively and alternatively plural parts to be controlled by means of a single switching key. CONSTITUTION:The 1st switch means 16 is connected successively and alternatively to the 3rd-5th display output terminals 19c-19e with each push of a switching key 3. At the same time, the 2nd switch means 17 is switched successively to terminals 20c-20e of the 1st output terminal group. While the 3rd switch means 18 is switched successively to terminals 21c-21e of the 3rd output terminal group. Then the 3rd-5th light emitting diodes D3-D5 are successively turned on to illuminate display windows 2c-2e and to display a contrast video tone brightness control mode. The control voltage is delivered to each circuit from control voltage output terminals 24a-26a of the 3rd-5th electronic volume devices 24-26 respectively.

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention is applicable to television receivers.
JJE・contrast and audio sound Jl) +:+
-Relating to an adjusting device for controlling

(b) Conventional color television receivers receive normal broadcast programs (ct
In addition, images played back from a videotape recorder or video disc player are often displayed (15) Especially when playing back images on a videotape recorder, the hue and color of the videotape may be different from that of normal broadcasting. There are deviations in brightness, etc., and even when receiving regular broadcasts, the brightness is also not uniform depending on the receiving channel and program content, so viewers have to adjust it each time according to their preferences.

However, image-related adjustments generally involve color (saturation),
Adjustment items for tint (hue), contrast, video 1/- (image quality), and brightness (brightness) [The adjustment knobs corresponding to J are stored in the storage compartments provided in the key to L net of the television receiver. As a result, the adjustment knob occupies a large proportion of the storage portion.

In particular, when image adjustment is performed using a remote control device, there is a drawback that the number of adjustment buttons occupying the transmitter B increases, making the transmitter large and its operability poor.

(C) Purpose of the Invention The present invention provides an adjustment operation i1 for adjusting many adjustment items related to images and g-sound in a television receiver with a small number of adjustment switches.
The purpose of the present invention is to provide an adjustment device that has the following functions.

(d) Structure of the Invention The present invention provides mode switching means for sequentially selecting a plurality of parts to be adjusted, such as a color control circuit and a brightness circuit, provided in a television receiver, and A turpentine comprising: a level setting means for adjusting and setting the level of the tgl; and a display means for displaying whether the part to be adjusted has been selected by the l?i+note mode (υ changing means); I/Receiver adjustment device.

The present invention also provides character display means for displaying adjustment item names of the plurality of adjustment target parts on a cathode ray tube screen to indicate whether a particular adjustment target part is selected by the mode switching means. , a control means for identifying and displaying a plurality of adjustment item names displayed on the cathode ray tube screen by blinking the adjustment item name selected by the seven-code switching means in a different color from other adjustment item names; This is an adjustment device for a T Levin receiver.

(E) Example Embodiments of the present invention will be described with reference to the drawings.

Embodiment (I) FIG. 1 shows an operation panel (1) provided in a color television receiver cabinet 71-.
1) has display windows (2a) to (2e) with adjustment item names.
), switching key (3), up/down key (4) (5
) is provided. In addition, the switching key (3) and up/down keys (4) and (5) are connected to the remote control (hereinafter referred to as F1 remote control) transmitter (6) shown in FIG.
) is also provided. The switching key (3) and up/down keys (4) and (5) are turned on only when suppressed.

FIG. 3 shows a detailed diagram of the adjustment device arranged in the color vision receiver in this embodiment, and the operation will be explained according to this block diagram.

In Figure 2, (7), (8), and (9) are the first and
Second and third key human power detection means, (10) (11) (12
) are first, second, and third OR gates, (13) is a remote control receiving 1Δ circuit, (14) is a decoder for decoding the output code signal from the receiving circuit (13), and (15) is a mode changeover switch means. and the switch means (15)
has a first input terminal (tSa) that receives the output of the first OR gate (10) and causes the first, second, and third switch means (16, 17, and 18) to operate in conjunction with each other, and a second OR gate (10).
11), a second input terminal (15b) receiving the output of
The third input terminal (1
5c) and the first to fifth LEDs (light emitting diodes) (DI
>Tables 1 to 5/J<Output terminals (19a) to (19e), first output terminals 11 (20a) to (20e), and second output terminals to which the cathodes of (D5) are connected, respectively Groups (21a) to (21e) are provided. (22)
-(26) are the first to fifth electronic volume devices, respectively, and each is a child volume L, and devices (22) to (26)
is the up terminal ◎ connected to the first output terminal group (20a>-(20e), and the second output terminal group (21A) to (21e)
) connected to ◎ and control voltage output terminal (22g) ~ (
26a) are respectively provided, and the DC voltages output from the control voltage output terminals (22a) to (26a) of the first to fifth electronic volume devices (22) to (26) are applied to the collars, which are the parts to be adjusted, respectively. It is supplied to the color control circuit, tint circuit, contrast circuit, video tone circuit, and bright circuit of television receivers.

Next, the operation will be explained.

As shown in FIG. 3, the first switch means (16) of the mode changeover switch means (15) is connected to the first display output terminal (19a
), the second switch means (17) is connected to the terminal (20a) of the first output terminal group, and the third switch means (
18) is connected to the terminal (21a) of the second blade terminal group, the color adjustment mode is activated, the output terminal (first display output terminal < 19a) becomes low level, and the first LED
(D+) lights up, illuminating the display window (2a) - [indicating that the current color adjustment mode is active.

In this state, when the up key (4) is pressed, the second gear human power detection means (8>) detects the current state and on/off, and when the 1 up key (4) is pressed via the second OR gate (11). A pulse voltage with a pulse width proportional to time is applied to the device (22) of the first electronic volume device (22) through the second switch 17) and the terminal (20a). control voltage output terminal (22a)
Increases the DC voltage output from the

Also, when the down key (5) is pressed, the third key human power detection means (9) activates the chakuri/guchi r-"/ri and 2j-n
C
Proportional to the suppression time of the down key (5), the health voltage is applied to the down end r◎ of the first electronic volume device (22) via the third switch means 18) and the terminal (21a).
The first electronic volume device (22)
In response to the pulse width of the high-power pulse voltage, the direct 7AE output from the control output terminal <22a). li
Decrease the magnitude of Ll-. Therefore, by pressing the up/down keys (4) and (5) appropriately, the first
'9 Control voltage output terminal of the child volume device (22) (
The level of the DC voltage output from 22a) is controlled to perform saturation adjustment.

Next, when the changeover key (3) is pressed twice from the state shown in FIG. (3) A positive pulse voltage with a constant pulse width that is independent of the pressing time is output. This pulse voltage passes through the first OR gate (1o) and the mode changeover switch means (
15), the first human power terminal (15a) of
) (18) is interlocked with the first switch means (16 islands (second
Connected to the display output terminal (19b), the terminal (19b)
becomes low level, and the second LED (D2) lights up the display window (2b) to indicate that it is in the dint/adjustment mode, and the second LED (171 means < 17) is connected to the first output terminal group. (20b), and the third switch means (18) is connected to the terminal (21b) of the second terminal group.
connected to. In this state, up/down key (4) (
5) When pressed, a pulse voltage with a pulse width proportional to the pressing time of the up key (4) or the down key (5) can be input to the up terminal ◎ and down terminal ◎ of the 2' electronic volume device <23), respectively. The level of the DC voltage output from the control voltage output terminal (23a) is controlled by the control voltage output terminal (23a), and the guint adjustment is performed.

Similarly, each time the changeover key (3>) is pressed, the first switch means (16>) is sequentially and selectively connected to the third, fourth, and fifth display output terminals (19c) (19d) (19e). At the same time, the second switch means (17) sequentially switches to the terminals (20c) to (20d) of the first output terminal group, and the third switch means (18) sequentially switches to the third output terminal -. r
The terminals (21c) to (21d) of the group are switched, thereby sequentially lighting up the third to fifth LEDs (D3) to (D5), illuminating each display window (2c) to (2e): contrast, Indicates that the video is in the bright adjustment mode, and also displays the control voltage output terminals (24ai to (24)) of the third to fifth electronic volume devices (24) to (26).
26a) to output a control voltage to the old circuit.

In addition, the bright adjustment mode is set. If you do not press the change key (3), you will return to the color adjustment mode. By pressing the change key (3), you can cycle through the modes. It is supposed to be done.

In addition, the switching key (3) provided on the remote control transmitter (6)
), up key (4) and down key (5>).In this case, the remote control transmitter (6)
Code signal transmitted from remote control receiving circuit (13)
When the reception is complete, the decoder <14> decodes whether Tonoki- was pressed and the 1st to 3rd age game 1-(10
) to (12) through the 1st to third input terminals <158) to
The mode is switched by manually applying a pulse voltage to (15c).

When using the remote control transmitter (6) in this way, the number of operation keys can be particularly reduced, and the remote control transmitter (6) can be made smaller.

Embodiment (II) Hereinafter, a second embodiment of the present invention will be explained with reference to the drawings.
- However, parts having the same functions as those shown in FIG. 3 are given the same figure numbers.

In this embodiment, as shown in Fig. 4, there are a switch key (3), an up key (4), and a down key (5) on the Carrara revision receiver side and the remote control transmitter side (φ' not shown).
A fourth key human power detection means (28) is further provided with a standard mode key (27) and performs chattering, checking, and on/off detection in response to the key human power;
A fourth OR gate (29) is provided, which has one input as the pulse voltage output from the detection means (28) and the other input as the output signal from the decoder (14).

Further, the first output terminal group of the mode changeover switch means (15) has seven output terminals (20a) to (20g>, and the second output terminal group also has seven output terminals -r-(2t
a) to (21g).

Further, the mode changeover switch means (15) has C.
An R7 display output terminal (30) is provided, and the terminal (
30) is the CRT display controller -'/(38) CRT
It is connected to the display input terminal (38a). (31)～
(37) are first to seventh electronic volume devices, each of which has amplifier terminals (31a) to (37a) and down terminals (31b).
) ~ (37b), standard input terminal (31C) ~ (37c
), level data output terminals (31d) to (37d),
and control voltage output terminals (31e) to (37e). ℃, the first output terminal group (20a) to (
20g) are the up terminals (31a) to (37), respectively.
a), and the second output terminal r group (21a) to (
21g) are respectively 1ViI down end r-(31b)
~(37b). Said 4th or gate (29
) are the output terminals of the 1st to 71st L child volume devices (31
) to (37) are connected to the standard input terminals (31c) to (37c), respectively, and the CR7 display controller (
38) is connected to the standard input terminal (38b). The first to seventh'rl child volume devices (31) to (37
) The DC voltages that can be output from the control voltage output terminals (31e) to (37e) of the control voltage output terminals (31e) to (37e) are respectively applied to the color control circuit, tint circuit, =+tocist circuit, and bidet 1/-n circuit of the color television receiver, which are the parts to be adjusted. , a bright circuit, a total of one balance circuit, and a tone circuit. In addition, the level data output terminals (31d) to (37d) of the first to 711U child volume devices (31) to (37) in mI are respectively connected to CRT display terminals (.
[1st to 7th level data input terminals of cone (38)
38c) to (38i), respectively.

FIG. 5 shows the details of the CRT display controller (38), and the display time timer circuit is used to control the display signal input to the CRT display input terminal (38a) or the standard input terminal (
When it receives the standard mode signal manually inputted at 38b), it is activated and operates the display 0N10FF=ff controller for a predetermined period of time to put the display output circuit into operation. (40) is a blinking signal outputted from the blinking control circuit together with the display signal; a color display terminal (41) provided in the character display control circuit; a tint display terminal; (42) a trust display terminal (43); and a video tone display. Terminal (
44), a bright display terminal <45), a balance display terminal (46>), and a first switch means provided to transmit information to a tone table tab terminal (47), ＜Every time a signal arrives, each terminal (
41) to (47) are selectively switched and connected.

Further, (48) is a fourth switch/chip means which operates in conjunction with the first switch/chip means (40) to sequentially select the first to seventh level input terminals (38c) to (38i). The signals inputted to these terminals (38c) to (38i) are supplied to the graphic display control circuit.

, The character display control circuit is located at the bottom center of the tube screen as shown in Figure 6 (3).
, ``Bride'', ``Balance'', ``1・-on'', etc., are displayed in the key shifter, and the first
A first color controller changes the color of the adjustment item name corresponding to the display terminal selected by the switch means (4o) to a different color from other adjustment item names, and causes the adjustment item name to blink in response to a blinking signal sent from the blinking control circuit; It has a function that allows the name of the adjustment item selected by the switching key (3) to be identified.

The graphic display control circuit is shown in Figure 6 (a).
), a level display bar (49) consisting of 31 levels is displayed below the adjustment item name, and the levels 1 to 7 are displayed.
It has the function of displaying level changes by increasing the length of one column from the center one after another according to the data values input manually from the level data input terminals (38c) to (38i).
The second color controller functions to make the level display bar red in the standard state and green in other adjustment modes.

The horizontal synchronization signal and vertical synchronization circuit are connected to terminals (38j) and (3
8k> (horizontal synchronization signal and vertical synchronization signal manually input) ÷
Based on No. 1, a control signal is given to a display output circuit to determine the timing for displaying characters and graphics at predetermined positions on a cathode ray tube screen. In addition, the display output circuit converts the output signals of the character display control circuit and the graphic display control circuit into three primary color signals of RGB and applies them to the CRT driver. The function is to apply a blanking signal to the disilane tube driver to erase the image.

Next, the operation of the adjusting device of this embodiment will be explained with reference to FIG. 6, which shows the display state of the screen of the cathode ray tube (39).

Consider the case where the changeover key (3) is pressed once with no adjustment item name or level display bar displayed on the cathode ray tube screen. At this time, the positive pulse voltage output from the first key human power detection means (7) passes through the first OR gate (10) and the first input terminal (15) of the mode changeover switch means (15).
15a). When this key is manually operated, the mode changeover switch means (15) switches to the second switch means (17).
) and the third switch means (18), the second switch means (17) is connected to the terminal (20) of the first output terminal group.
a), the third sweetener means (18) is connected to the terminal (21a) of the second output terminal group, and the color adjustment mode is set.

On the other hand, the mode changeover switch means (15) is a CRT.
The display signal is transmitted from the display output terminal (30) to the CRT display input terminal (38a) of the CRT display controller (38), and the first switch means (40) is connected to the color display terminal (41) of the character display control circuit. Serve.

As a result, only one color of the plurality of I1mlIM item names is displayed blinking in green on the cathode ray tube screen, as shown in FIG. 6(b), and the other adjustment item names are displayed in cyan color in a non-blinking state. In addition, in the diagram B, the adjustment item names in a blinking state are indicated by broken lines. Further, the display signal is transmitted to the fourth switch means (48
) is displayed in green at the second rubel data input terminal (38C) as shown below.

When the up key (4) is pressed in the above 'color' display mode, a pulse voltage with a pulse width proportional to the pressing time of the up key (4) is applied to the up terminal (31a) of the first electronic volume device (31). is input, and the first electronic volume device (31) increases the DC voltage that can be output from the control voltage output terminal <31e) according to the magnitude of the pulse width. In addition, along with this, the first electronic volume device (31)
The level data output terminal (31d) outputs level data corresponding to the magnitude of the DC voltage output from the control voltage output terminal (31e) as a 5-bit digital signal to the level data input terminal (38a>). The graphic display control circuit follows the digital value of the level data [l of the level display bar (49) as shown in Figure 3 (C)].
:The level is displayed by changing the length of one serving one after another.

5), a pulse voltage with a pulse width proportional to the suppression time of the down key (5) is input to the town terminal (31b) of the first electronic Holium device (31), and the first
The FL child volume device (31) outputs a direct voltage from the control voltage output terminal (31e) according to the magnitude of the pulse width.
, the voltage is decreased and the level data output terminal (3
1d) outputs level data corresponding to the magnitude of the DC voltage to the second level data input terminal (38c), and the graphic display control circuit moves the level display bar to -J level according to this level data, so that the level is adjusted. Indicates that it has been decreased.

After setting the level using the up/down keys (4) and (5), after a predetermined period of time has elapsed, the display timer mark will run out and the screen will disappear, but you can change it while in the 1-kick-1 display mode. When the key (3) is pressed once, the second and third switch means (17 and 18) are switched to the terminals <2 of the first output terminal group, respectively.
0b) and the end r-(21b) of the second output terminal group, and can be set to the daint adjustment mode.

On the other hand, the mode changeover switch means (15) transmits the display signal from the CRT display output terminal (30) to the CRT display input terminal (38a) of the CRT display-J controller (38), and the first switch means (40>) Display - Connect to the tint display terminal <42) of the J control circuit. As a result, only one taint of the adjustment item name is displayed on the cathode ray tube screen as shown in FIG. 3(a), and the other adjustment item names are displayed in cyan color without blinking.

Further, the display signal causes the fourth input means (48) to
The level booster obtained from the second electronic volume device <32> is connected to the level data input terminal (38d), and the level booter obtained from the second electronic volume device <32> is supplied to the graphic display control circuit, and the display level of the bell display bar is set. (3) Every time you press the second switch means <17)
is sequentially switched to the terminals (20a) to (20g) of the first output terminal group, and the third switch (18)
is sequentially switched to the terminals (21a) to (21g) of the second output terminal group in conjunction with the second switch means (17), color adjustment → tint adjustment mode → :J contrast adjustment mode → video tone @t -1 → Bra (1~adjustment mode → balance adjustment mode → 1-FJ8 adjustment mode → color adjustment mode - etc.) and changes cyclically.

Further, the first switch means (4o) and the fourth switch means (48) are also connected to the second and third switch means (1701g>
In conjunction with this, the first switch means (4o) sequentially switches each display terminal 4 (41) to (47), and the fourth switch means (48) sequentially switches the first to seventh level data lambda terminals (3).
8c) to (381), and the names of the adjustment items that flash in green are "Color" → 1 dint, → "Contrast," → "Video Tone," Toge "Bright" → 1 Balance" → 1 Tone, → " The display mode is switched cyclically in the order of color, →, etc., and the level display bar displays tli< and the \\ mark corresponding to each display mode.

In the above, we have explained in detail how things are displayed on the cathode ray tube screen in the color adjustment mode and tint adjustment mode, but since the operation is similar for other adjustment items, we will omit the explanation here. . Furthermore, if the switch key 3) is pressed when the key λ, diagonal and graphics are not displayed on the cathode ray tube screen, the color adjustment mode 7 is first set.

Next, consider the case where the standard mode key (27) is pressed. When the standard mode key 27) is suppressed, a pulse voltage is output from the fourth key human power detection means (28), and this pulse voltage is used as a standard mode signal.
) through -C 1st to 7th electronic volume device (31)
(37) are input to the standard input terminals (31c) to (37c), respectively, and the CRT display controller (3
8) is input to the standard input terminal (38b). As a result, the first to seventh electronic volume devices (31) to <37)
The control voltage output terminals (31e) to (37e) output a DC voltage that brings each adjusted part into the standard state, and the standard mode signal is input to the character display control circuit and the graphic display control circuit to control the display on the cathode ray tube screen. As shown in Figure 1 (a), all the adjustment item names are displayed in cyan color without blinking, and the display bar (49) is displayed in red without blinking to indicate that it is in standard mode. is displayed without any change in length.The display state in this standard mode is that when a predetermined period of time has elapsed since the standard key was pressed, the display timer circuit and display 0N10F are displayed.
F:ff The display output circuit is made inactive and automatically erased from the screen by the ant 1-ra.

The same operation can be performed even if the switching key (3), up key (4), down key (5), and standard key (27) are installed on a remote control transmitter (not shown). In that case, the "-" signal transmitted from the remote control transmitter is received by the remote control receiving circuit (13), and the decoder (14) decodes whether the key has been pressed and outputs the first to fourth keys ( 10)(11)(12)(2
9), press each key (3) installed on the television receiver side (1).
)(4>(5)(27) is designed to manually override the same pulse voltage as the pulse voltage generated when pressed.

Most of the circuit configuration of the above embodiment (I) CI[> can be realized by a program of the microphone [J computer.

In the case of Embodiment (1), the entire portion surrounded by a chain line in FIG. 3 can be provided with the same function by a microcomputer program.

Also in the embodiment (n), the switching key (3>, up key (4), down key (5), standard mode key (
27), remote control receiving circuit (13), first to seventh electric volume devices (31) to <37), display output circuit, horizontal and vertical synchronization circuits, cathode ray tube driver and cathode ray tube (39). The same function can be provided by a computer program, and a schematic flowchart in that case is not shown in FIG.

FIG. 7 shows an example (II) using a microcomputer.
A circuit configuration diagram for realizing this is shown, and its operation will be briefly explained below.

In FIG. 7, IC+ is a microcomputer [manufactured by Matsushita Electric Industrial Co., Ltd., M N1414S AJ Co., I
c2 is a D/A converter [manufactured by Matsushita Electric Industrial Co., Ltd., MN
1214A, IC3 is LS for CRT interface
I [manufactured by Matsushita Electric Industrial Co., Ltd., M N 1277A]. ICI's DOO-DO7 terminals sequentially output scan pulses in a time-sharing manner, checking the inputs of AIO-AI3 terminals each time, and checking the timing at the time when key power was applied and the AI
It is checked whether the key has been pressed by checking which end T of the O to AI3 terminals has reached the high level "H°".

Therefore, for example, if you do not press the changeover key (3>), the DO2 terminal -
The scan pulse output from is added to the AIO terminal,
The IC+ decodes that the switching key (3>) has been pressed. When the switching key (3>) is pressed, the IC+ cancels the Haki-skin and returns DOO, D.

1, D02, D03, EOO5EOI, EO2
, EO3, CO3 terminals to IC3's DAO to DA8
Send screen display data to the terminal.

Screen display data consists of display position data and table or content data, which are transferred alternately to the IC.

The IC3 is latched by a latch pulse that is manually applied from the CO3 terminal of the IC3 to the LDI terminal of the IC3. The screen display data latched in C3 is connected to the H5YNC terminal and V5.
In synchronization with the horizontal and vertical synchronization signal 1δ input to the YNC terminal, the voo, VOl, ■02, and VOB terminals output the three primary color signals (R), (G), and (B) blanking signals to the cathode ray tube driver. At the same time I
A program-based counter is started in C1, and the display output is erased after a predetermined time (4 seconds) has elapsed.

Next, from DOO-DO3 of IC+ to DAO-DA of IC2
Send D/A converter data to terminal 3.

This D/A converter data is the D to which the control voltage is output.
Consisting of data specifying the ACI to DAC7 terminals and data determining the magnitude of the control voltage output from each terminal, these data are transferred alternately to the C0 of the IC.
It is latched by a latch pulse input from the IO terminal to the LDI terminal of IC2.

Then, when the up key (4) or down key (5) is pressed, the IC changes the data value to be transferred to the IC2.
IC, DOOID so that the level is displayed according to the data value.

1, D02, D03, EOOlEol, EO2, EO3
, C03 (7) Send display data from each terminal to the DAO to DA8 terminals of the IC (DOO to DO3 of the IC)
Transfer from the terminal to IC2's DAO to DA3. Furthermore, I
Since a pulse width modulated voltage is output from the DACI to DAC7 terminals of C2, an integrating circuit is externally connected to these terminals. Further, although IC4 is a nonvolatile memory, the memory is not particularly directly related to this circuit, so its explanation will be omitted.

(F) Effects of the Invention According to the present invention, a plurality of parts to be adjusted are sequentially selected by one switching key, and the p of the selected part to be adjusted is thereby selected.
Since the 14-tone level can be adjusted with a single up/down key, the key of many image and audio-related parts to be adjusted can be controlled with a small number of switches. Therefore, the proportion of the adjustment switch in the cabinet of the television receiver can be reduced, and especially when the adjustment switch is provided on the remote control transmitter, the remote control transmitter does not become larger and the operability decreases. .

Further, according to the present invention, the adjustment item names of the plurality of adjusted parts are displayed in characters on the CRT screen, and the adjustment item name selected by the switching key can be identified, so that the viewer can see the adjustment item name. It is easy to select and has great advantages in terms of operability, especially when operated with a remote control transmitter.

[Brief explanation of the drawing]

1 to 3 relate to one embodiment of the present invention, in which FIG. 1 shows an operation panel of a television receiver, FIG. 2 shows a remote control transmitter, and FIG. The figure is a block circuit diagram of the adjustment device. FIGS. 4 to 8 are for explaining other embodiments of the present invention, and FIGS. 4 and 5 are control circuit diagrams of the adjusting device, and FIG.
The figure is a diagram showing a schematic flowchart for explaining the operation of this embodiment. (3)...Switching key, (4)...Up key, 5)...Down key, (15)...Mode changeover switch means, (16)(40)...First switch Means, (17)...Second switch means, (18)...
Third switch means, (22) to (26)...first to fifth electronic volume devices, (27)...standard mode key,
(31) to (37)...first to seventh electronic volume devices, (38)...CRT display controller, (39)
)... Braun tube, (4g)... Fourth switch means, (D+) to (D5)... First to fifth LEDs. fcl Figure 6 (dl

Claims (1)

[Claims] <1> Mode switching means for sequentially selecting a plurality of adjusted parts provided in a preview receiver, and setting adjustment levels of the adjusted parts selected by the mode switching means. An adjustment device for a preview receiver, comprising a level setting means and a display means for displaying which part to be adjusted is selected by the mode switching means. (2) mode switching means for sequentially selecting one of a plurality of parts to be adjusted provided in the television receiver; level setting means for setting the adjustment level of the part to be adjusted selected by the mode switching means; character display means for displaying adjustment item names of the plurality of adjustment target parts on a cathode ray tube screen to display which part to be adjusted is selected by the mode switching means; An adjustment device for a television receiver, comprising control means for identifying and displaying the adjustment item name selected by the mode switching means. (3) The control means changes the selected adjustment item name to another i&! 3. The adjustment device for a television receiver according to claim 2, wherein the identification display is performed by blinking in a color different from that of the adjustment item name.