Test Mode - Pioneer HTV-1 Service Manual

HTV-C1

7.2 TEST MODE

7.2.1 TEST MODE
7.2.1.1 How to Enter the Test Mode
Even that is possible though there are the following two methods.
(1) Receive "A55F" command with the remote control unit.
(2) Short-circuit the TEST MODE points on the foil side (pin 19 of
IC5001 and ground) of the DISPLAY Assy. Plug the power
cord into the AC socket.
C
DISPLAY ASSY
Pin 19
Short-circuit
• When the test mode is entered, FL displays with "TEST 1" for 1
second.
• LED keeps going on and off in the Test Mode.
• At this time, the setting of VOLUME becomes 10.
• SURROUND mode becomes DOLBY VIRTUAL ON.
7.2.1.2 Test Mode Operation
FL Segment Check
Press the DISPLAY key → Switch the movement of (1) to (5)
cyclically.
(1) All lighting the FL and LED
(2) All light-out the FL and LED
(3) (segment check 1) "ABCDEFGH" display
(4) (segment check 2) "IJKLMNOP" display
(5) Normal display
1. Check The AUTO STANDBY Function
(1) Press the INPUT key →
Turn the POWER off and it becomes AUTO
STANDBY mode.
FL displays with "AUTO".
(It becomes the condition that it passes for three
minutes during POWER ON with no signal.)
(2) Input the input signal to INPUT terminal →
AUTO POWER ON.
(It moves only when it is inputted to the selected
INPUT terminal.)
20
IC5001
SIDE B
2. DSP Check
Press the SURR. MODE key → Enter the DSP check mode.
DSP check mode
Outputs TEST TONE in the DOLBY VIRTUAL state.
Output repeatedly TEST TONE in order of LEFT → CENTER →
RIGHT → SURROUND.
Confirm whether DSP moves normally at the time of the
SURROUND output.
Press the SURROUND MODE key twice → Release the DSP check
mode. FL and LED are normal display.
* A key except for the designation normally moves.
7.2.1.3 Release The Test Mode
Turn the STAND BY/OFF key to OFF during the power on or unplug
the power cord from the AC socket.
7.2.2 SINGLE OPERATION METHOD
HTV system doesn't move if it is not the combination of HTV-C1
and HTV-A1 fundamentally.
AC26V is added to the sub-transformer (T2) when the HTV-C1 is
separate and you must diagnose it. (All the functions can't be
validated.)
A
AC26V
MAIN ASSY
SIDE A