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CORRECTION OF SERVICE MANUAL
Date: Nov. 29,2004 No.: SCH04015 ( 1/8 )
MODEL No. S/M No. PG MODEL No. S/M No. PG
VSX-52TX/KUXJ/CA RRV2977 VSX-1014TX-K/KUXJC RRV2977
VSX-2014I-S/HYXJ RRV3008 VSX-1014-S/HYXJ RRV3008
VSX-1014-K/HYXJ RRV3008



Please correct your service manual


Please refer to RRV2977 page114 and RRV3008 page122.



7.GENERAL INFORMATION
7.1 DIAGNOSIS
7.1.1.PROTECTION CIRCUIT CONTROL SPECIFICATION

1 DCdetection(defect detection)
Only DC detection is ------------
---------------(snip)-------------------------
Do not accept the kye input afterward.
(Flash it always till turns the primary side off.)
-->(correct) MCACC LED
---------------(snip)-------------------------
However, power on is possible when the following key was
pressed to be able to key input in the protection line and service.
-->(correct) production
1.Test mode (remote control code: A55F)
2.When the STEREO/DIRECT key and SIGNAL SELECT key ----
-->(correct)ENTER -->(correct)VIDEO2



Protection Process List
Item Detection Method Process Warning Indication Remarks
Thermal shut Detects when the TEMP2 Turns muting on and speker Flashing "OVERHEST" If the TEMP2 port
down port becomes "H". relay off, then turns off the for 3 seconds -- >(correct) becomes "L" within 3
power after 3 seconds. OVERHEAT seconds,------
12V trigger Detects when the Turns 12V_TRG port to Flashing "12V TRI ERR" If the TEMP2 port
short detection 12V_DET port becomes "L",then turns off the 12V -- >(correct) becomes "L" within 3
"H". output. 12V TRIG ERR seconds,------




PIONEER SERVICE NETWORK CORPORATION
Memo: SMC05-H12 AT, 62
K.NOHARA ,MANAGER
HE
Technical Support Group
Service Support Division
( 2/8 )




Please refer to RRV2977 page116.

7.1.2 HOW TO DIAGNOSE THE AMPLIFIER SECTION

When DC detection worked (STBY IND. flashes for a long time)
-->(correct) MCACC LED
---------------(snip)-------------------------

Caution:
When release the STBY (flashes )state before repair (see how to release" 1 DC detection" on page 114) ,
-->(correct) the state of flashing "MCACC" LED (add)
because there is the case that the damage progresses when turns the power on once again,-----




Please refer to RRV2977 page 117.


7.1.3 HOW TO DIAGNOSE THE UNIT WITH THE POWER AMPLIFIER SECTION REMOVED

Symptoms that are highly suspected to be failures
Possible causes
inside the Heat Sink Block
1 No power with the STBY LED flashing DC detection has been activated to prevent
-->(correct) further damage damage t the unit.
MCACC LED flashing Note: Refer to "7.1.2 How to diagnose the
Amplifier Section" in the service manual.




Please substitute the new pages attached after this page for each pages as follows.

* RRV2977 page 136 : PD5957A Pin Assignment----> page ( 3/8 )
* RRV2977 page 137 : PD5957A Pin Function ----> page ( 4/8 )
* RRV2977 page 138 : PD5957A Pin Function ----> page ( 5/8 )
* RRV2977 page 139 : PE5403A Pin Assignment ----> page ( 6/8 )
* RRV2977 page 140 : PE5403A Pin Function ----> page ( 7/8 )
* RRV2977 page 141 : PE5403A Pin Function ----> page ( 8/8 )
( 3/8 )
PD5957A (MAIN CONTROL ASSY: IC501) (For VSX-52TX)